Linux is an open-source and free operating system, which runs on many computers, servers and device. A Linux Developer is any tech professional who specializes in developing programs and applications that run on the Linux operating system. They also help install, troubleshoot and fix any issues related to the Linux OS, allowing their clients to use it effectively.

Linux Developers are highly knowledgeable in this field and can provide their clients with various services ranging from installation, selection and acquisition of Linux-based applications, to helping set up a computer or server infrastructure. Their expertise would be beneficial for any business that wants to employ the use of both Linux-based applications and environments.

Here's some projects that our expert Linux Developers made real:

  • Designing creative solutions for GUI elements for user interactions
  • Optimizing server performance and reliability
  • Developing solutions for deploying software within a scalable environment
  • Deploying robust backups and security measures
  • Enhancing the structure of web applications under the Linux system
  • Writing code mapping APIs between multiple operating systems
  • Building desktop applications to execute specific commands

Our expert linux developers can achieve all this, as well as any other custom tasks that may be required. At Freelancer.com you’ll find highly skilled professionals ready make your idea reality. If you have a project you need help with or just want an experienced developer to lend a helping hand with technology needs, post your project today!

从203,270个评价中,客户给我们的 Linux Developers 打了4.9,共5星。
雇佣 Linux Developers

Linux is an open-source and free operating system, which runs on many computers, servers and device. A Linux Developer is any tech professional who specializes in developing programs and applications that run on the Linux operating system. They also help install, troubleshoot and fix any issues related to the Linux OS, allowing their clients to use it effectively.

Linux Developers are highly knowledgeable in this field and can provide their clients with various services ranging from installation, selection and acquisition of Linux-based applications, to helping set up a computer or server infrastructure. Their expertise would be beneficial for any business that wants to employ the use of both Linux-based applications and environments.

Here's some projects that our expert Linux Developers made real:

  • Designing creative solutions for GUI elements for user interactions
  • Optimizing server performance and reliability
  • Developing solutions for deploying software within a scalable environment
  • Deploying robust backups and security measures
  • Enhancing the structure of web applications under the Linux system
  • Writing code mapping APIs between multiple operating systems
  • Building desktop applications to execute specific commands

Our expert linux developers can achieve all this, as well as any other custom tasks that may be required. At Freelancer.com you’ll find highly skilled professionals ready make your idea reality. If you have a project you need help with or just want an experienced developer to lend a helping hand with technology needs, post your project today!

从203,270个评价中,客户给我们的 Linux Developers 打了4.9,共5星。
雇佣 Linux Developers

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    Video Logo Detection Engine
    6 天 left
    已验证

    I need a computer-vision pipeline that can ingest an uploaded logo image (PNG or JPG) together with a video file and then return every instance of that logo throughout the clip. The videos that come in will be MP4, AVI, or MOV, and the solution must run smoothly. Here’s how I picture the workflow: • The script accepts the logo and video paths from a simple CLI or minimal API endpoint. • It scans each frame, flags every logo hit, and outputs a tidy JSON or CSV that lists, for each detection, the start timestamp, on-screen duration, and bounding-box coordinates. • No extra training or fine-tuning whenever a new logo is supplied—the detector should work right away with whatever image is uploaded. I’m after well-commented, maintainable code, and I&rsquo...

    $535 Average bid
    $535 平均报价
    68 个竞标

    I am aiming to have ten solid, well-documented pull requests merged into a public Python repository that I will point you to once we start. Each PR must tackle a genuine bug—no cosmetic or dummy changes—so the maintainers see real value and are willing to approve quickly. Scope and expectations • Review open issues or identify hidden edge-case failures, then supply concise, tested fixes. • Keep every change set focused: one bug, one PR. • Follow the repo’s existing style guide, lint rules, and CI workflow so each PR passes automated checks on the first try. • Write or update unit tests where relevant and include clear commit messages plus a brief PR description that references the related issue. • All ten PRs must be merged (not merely ...

    $11 Average bid
    $11 平均报价
    4 个竞标

    We are seeking an experienced Senior C/C++ Engineer to join long-term projects focused on developing, maintaining, and modernizing large-scale, high-performance systems. These projects involve complex legacy codebases and cutting-edge platforms across domains such as embedded systems, automotive software, and enterprise-grade infrastructure. In this role, you will work across the full software development lifecycle — from understanding requirements and designing system architecture to implementing, optimizing, and maintaining robust solutions. You will be responsible for improving system performance, reducing technical debt, and ensuring reliability in large, multi-component environments. You will collaborate with distributed teams and contribute to system-wide decisions, while als...

    $21 / hr Average bid
    $21 / hr 平均报价
    61 个竞标

    I need a seasoned security professional who can step in at a moment’s notice to keep our Netskope and Check Point estate running flawlessly. The immediate priority is true on-demand technical support: when an alert spikes, a policy breaks, or a new SaaS application appears, I want to know you can connect, troubleshoot, and restore full protection without delay. Most of the work centers on the Netskope CASB/SWG stack and perimeter firewalls running Gaia OS. You should be comfortable tracing traffic through both platforms, fine-tuning policies, fixing rule-base anomalies, and explaining the changes you make so my in-house team stays in the loop. Experience with broader cloud security architectures is a plus; it often helps when integrations with Azure AD or AWS accounts start acting u...

    $82 Average bid
    $82 平均报价
    5 个竞标

    I'm looking for an experienced Python developer to create a secure, detailed password manager. Security is the top priority for this project. Key Features: - Password Generation - Autofill Functionality - Encrypted Storage - Hashing - GUI - Multi-factor Authentication Ideal Skills: - Proficiency in Python and GUI development - Strong understanding of encryption and security protocols - Experience with multi-factor authentication integration - Previous work on similar password management tools Please provide samples of relevant work and ensure you have a solid security background.

    $16 Average bid
    $16 平均报价
    23 个竞标

    Necesito integrar un datáfono Saturn1000 con las balanzas Marqués ETPOS V5.34 / ETBAL V1.0 sobre un sistema basado en Linux 4.14.78-mx6+ga9b238a40814. El objetivo es la sincronización de transacciones: cada vez que la balanza cierre una venta, el datáfono debe recibir y guardar el registro de venta con total precisión. La conexión será por cable (serial o USB - lo confirmamos en función del hardware definitivo). Alcance técnico • Crear el módulo, driver o adaptación necesaria en kernel 4.14.78 para que ambos dispositivos se reconozcan y se comuniquen sin pérdida ni duplicado de datos. • Implementar el protocolo de intercambio que envíe el registro de venta desde la balanza y confirme...

    $2611 Average bid
    $2611 平均报价
    22 个竞标

    We are running a fast-growing WooCommerce-based bookstore () with a large catalog (100000+ products) and high growth targets. Our infrastructure is already upgraded to a high-performance setup, and we are looking for an experienced DevOps + WooCommerce performance expert to manage, optimize, and maintain the system. Current Infrastructure: Bare Metal Dedicated Server 32 Core CPU 128 GB RAM 2 TB SSD (RAID-1) Separate Servers: Redis Server (8 Core, 16 GB RAM) Typesense Server (8 Core, 16 GB RAM) CDN: Multi-location CDN with active sync Image optimization enabled Scope of Work: Server Management & Monitoring Monitor uptime, CPU, RAM usage Handle crashes, downtime, and scaling issues Optimize Nginx/Apache, PHP, MySQL WooCommerce Performance Optimization Speed optimization (target: <2 se...

    $105 Average bid
    $105 平均报价
    29 个竞标

    I need a clean, reliable API bridge that keeps booking details flowing instantly between Djubo PMS and Lovable in both directions. Whenever a reservation is created, modified, or cancelled in either system, the other side must receive and store the update in real-time without manual intervention. Both platforms already expose RESTful endpoints and keys; what I’m missing is the middleware logic that watches the webhooks, maps the fields, handles authentication, and writes robust error handling and retry routines so no transaction is lost. Deliverables • Node.js (or similar) service with clear, well-commented code • Field-mapping document showing how each Djubo attribute pairs with its Lovable counterpart • Deployment guide for a Linux server (Docker preferre...

    $79 Average bid
    $79 平均报价
    39 个竞标

    I’ve installed a Hirschmann EAGLE40 industrial firewall and now need a specialist to walk it from factory defaults to a production-ready state. The hardware is racked, powered, and reachable through both the web interface and SSH; what’s missing is a solid rule-set, proper interfaces, and clean logging so the device actually protects the plant network rather than just sitting in the traffic path. Here’s what I expect: • You review the current blank configuration, discuss my network layout, and translate that into interface zones, NAT (if required), and a concise set of access rules. • You advise on best-practice hardening for an EAGLE40—admin account lockdown, firmware verification, logging to our Syslog server, and fail-safe settings. • You loa...

    $17 / hr Average bid
    $17 / hr 平均报价
    17 个竞标

    保洁服务预约及管理系统 技术需求书 一、项目概述 1.1 项目核心目标 为保洁服务团队开发一套完整的线上预约及管理系统,实现客户全流程自助预约、订单全生命周期线上化管控、服务人员资源智能调度、内部运营自动化管理,全面优化客户预约体验,降低内部沟通与管理成本,提升团队运营效率。系统需适配多元客户群体,具备灵活的业务扩展能力,最终交付成果需支持一键部署至甲方指定的 Linux 服务器,可稳定落地使用。 1.2 项目适用范围 本系统覆盖保洁服务从客户预约、订单审批、人员调度、服务执行到财务统计的全业务流程,同时预留多业务线扩展能力,满足甲方未来业务拓展需求。 二、核心功能需求 2.1 客户端预约系统 语言适配:全站支持中英文双语无缝切换,所有页面文案、操作提示、通知内容均同步支持双语,满足中文及外籍客户的使用需求,语言切换操作便捷,设置可持久化保留。 设备适配:全页面采用响应式设计,在手机、平板、电脑等所有主流设备上均可正常浏览与操作,无排版错乱、功能失效、操作卡顿等问题。 品牌展示页:网站首页可展示公司简介、服务内容、团队优势、服务案例等品牌信息,所有展示内容支持后台编辑更新,无需修改系统底层。 全流程自助预约功能,需按以下逻辑顺畅流转: 服务类型选择:默认开放保洁服务,预留多服务类型扩展入口; 服务时间选择:可自主选择服务日期与具体时段,页面仅展示可预约的时段,不可预约时段明确标注且无法选择; 服务地址填写:可完整输入上门服务的地址信息; 户型选择:可选择对应服务的户型(如一居室、两居室、三居室等,选项支持后台灵活配置); 特殊需求填写:可输入个性化服务要求、额外服务需求等补充信息; 服务人员偏好选择:可选择 “由团队统一安排服务人员”,或指定具体的服务师傅上门; 预约提交:信息填写完成后可一键提交预约,提交后系统自动生成唯一的订单编号,同步触发预约成...

    $395 Average bid
    $395 平均报价
    65 个竞标

    I run a computer-centric business that relies on a hybrid setup—part cloud, part on-prem servers—and I need a reliable partner to keep everything humming. Day-to-day, the help I’m after centers on two fronts: tracking down and fixing software glitches before they hurt productivity, and handling the nuts-and-bolts upkeep of our desktops, laptops, printers, and the small server room we still operate. Here’s what that looks like in practice: • Software troubleshooting: isolate crashes, apply patches, resolve compatibility issues across Windows and Linux, and speak with vendors when escalation is required. • Hardware maintenance: swap failing parts, run preventive diagnostics, clean equipment, and advise when a full replacement is more cost-effective. I r...

    $452 Average bid
    $452 平均报价
    53 个竞标

    I need a an ethical hacker for pen testing and cyber security issues.

    $173 Average bid
    $173 平均报价
    35 个竞标

    Three-Tier Client Server Architecture in Distributed System ...3-tier architecture is a software design pattern that organizes an application into three logical, independent layers—Presentation, Application, and Data—improving scalability, security, and maintainability. It separates user interface, business logic, and data storage, allowing independent updates to each layer without disrupting the entire system

    $11 / hr Average bid
    $11 / hr 平均报价
    20 个竞标

    Three-Tier Client Server Architecture in Distributed System ...3-tier architecture is a software design pattern that organizes an application into three logical, independent layers—Presentation, Application, and Data—improving scalability, security, and maintainability. It separates user interface, business logic, and data storage, allowing independent updates to each layer without disrupting the entire system

    $15 / hr Average bid
    $15 / hr 平均报价
    22 个竞标
    Migrate Website To VPS
    5 天 left
    已验证

    Need help with my hosting account. I have a shared account and a VPS account. Originally my website was hosted on the VPS account but there was an issue with the ssl certificate and it now appears the domain name is on the shared account, and the files are on the VPS. At least that is what it looks like to me. I want everything on the VPS account and to delete the shared account. Thanks

    $115 Average bid
    $115 平均报价
    155 个竞标

    I need a lightweight, reliable stream-player application for a set-top-box environment that focuses exclusively on video. The core requirement is solid, glitch-free playback of Transport Stream (.ts) files delivered over the network. Scope of work • Build or customize a player that autoplays incoming .ts streams and displays them in full-screen. • Ensure basic transport controls (play, pause, seek if the stream permits) and graceful recovery on signal loss. • Optimise buffering so startup time is minimal without sacrificing stability. • Expose a simple on-screen or remote-triggered settings panel that lets me point the box to a new stream URL. • Package the solution so it can be flashed or installed easily on common Linux-based set-top boxes (OpenWrt, Ubuntu Core,...

    $43 / hr Average bid
    $43 / hr 平均报价
    50 个竞标
    Install WAN Video 2.7 DGX
    5 天 left
    已验证

    I have an Nvidia DGX Spark workstation that ships with Ubuntu and I need the open-source WAN Video 2.7 stack fully installed and running on it. You will connect over AnyDesk, handle the complete setup, pull all required libraries and system dependencies, and verify the application launches cleanly with GPU acceleration enabled. During the session I will stay online to provide root access and restart the box if needed. Please be comfortable working in a CUDA-centric environment, compiling from source when binaries are not available, and troubleshooting driver or codec conflicts that sometimes appear on DGX hardware. Acceptance criteria • WAN Video Open Source 2.7 starts without errors and streams a test feed. • All supporting packages and services are documented in a short R...

    $32 Average bid
    $32 平均报价
    14 个竞标

    I have a small Rust + Actix web service that already builds cleanly inside a working Dockerfile. The image now needs to live in AWS: • The private ECR repository is ready and waiting. • I only want a one-time, manual deployment—no CodePipeline, no GitHub Actions. • Once deployed, the service should be reachable through a public endpoint (an Application Load Balancer on Fargate is perfectly fine, but I’m open to whatever you consider the simplest path). Deliverables 1. Tag, push, and verify the Docker image in my existing ECR repo. 2. Create the ECS cluster, task definition, and service that reference that image. 3. Configure networking (subnets, security groups, ALB) so I can hit the health route from a browser. 4. Hand over the AWS CLI or console s...

    $32 Average bid
    $32 平均报价
    35 个竞标

    Hello, I would like to engage you for the **deployment, staging setup, and production preparation** of a custom-built CMS platform. Before the technical details, here is important context about the project. --- # 1. Project Background This system is called **Sugarfreunde CMS**. It is a **multi-tenant, scalable SaaS platform** designed for a social + communication-based product with monetization and AI integration. ## Origin * There was an **older CMS (Laravel 5.x)** used as a functional reference only * The new system was **completely rebuilt from scratch** * No legacy code was reused * The architecture is modern, modular, and scalable ## Development Approach The system was developed in a **strict phased architecture (9 phases)**: 1. Core architecture & multi-tenancy 2. Admi...

    $188 Average bid
    $188 平均报价
    75 个竞标

    Necesito que un freelancer prepare tres (3) unidades USB de 32 GB cada una, con el siguiente contenido: - DOS USBs con Tails OS (última versión) preinstalado y almacenamiento persistente configurado para archivos cifrados en AMBOS. - UN USB adicional (independiente) que contenga únicamente un contenedor VeraCrypt (volumen cifrado) de aproximadamente 4-8 GB, sin datos dentro. Los tres USBs deben enviarse físicamente a España mediante un servicio de mensajería con seguimiento (DHL, FedEx, UPS). Por favor, envíenme un presupuesto único que incluya: - TRES USBs de 32 GB - Instalación y verificación de Tails + almacenamiento persistente en los dos USBs de Tails - Creación del contenedor VeraCrypt en el tercer USB - ...

    $467 Average bid
    加精
    $467 平均报价
    5 个竞标

    We are seeking an experienced AKS Administrator to join our team for a long-term contract role, working 8 hours daily Monday through Friday. This is a 100% remote position supporting Linux-based infrastructure and Azure Kubernetes Service (AKS) environments. You'll be responsible for deploying, managing, and maintaining containerized applications and infrastructure. Requirements: • 5+ years of experience in AKS/Kubernetes administration • Strong expertise in Linux-based infrastructure management • Experience with Infrastructure as Code tools (Terraform, ARM templates) • Proficiency in container orchestration platforms • Knowledge of performance testing, integration testing, and security testing • Experience with L3 operations and incident response &bull...

    $12 / hr Average bid
    $12 / hr 平均报价
    22 个竞标

    i have a script i need in aws server + pannel also in aws with auto scalling u need close our old instance and create new u need to test every thing admin pannel user pannel agent pannel meta api campagin and etc what all feature is there

    $75 Average bid
    $75 平均报价
    30 个竞标

    I need clear, step-by-step guidance on how to get the cash that is sitting in my Webull account safely over to my Coinbase account. I do not want anyone logging in for me or taking remote control; instead, I want you to walk me through each screen so I can complete every step myself without risking a mistake that could strand the money. Here is where I stand right now: • The funds are fully settled in Webull. • I have already verified my identity on Webull, so we can skip that. • I am comfortable using Coinbase once the money arrives, but I am unsure whether the transfer has to pass through a bank first or if a direct crypto purchase and outbound transfer is possible. What I expect from you: 1. A concise set of instructions I can follow in real time—either de...

    $527 Average bid
    $527 平均报价
    12 个竞标

    I need a seasoned Ansible engineer to translate security-compliance standards into clean, reusable Infrastructure-as-Code. We have no existing policies, so you’ll start from a blank slate: shape the baseline, write the roles, and wire everything into version control. Scope • Analyse our Linux fleet (mostly RHEL, CentOS and Ubuntu) and pinpoint the controls we must meet—CIS benchmarks, NIST 800-53 or similar. • Draft a security baseline proposal for sign-off, then codify it as Ansible roles, playbooks and variables. • Build idempotent tasks for hardening, user and group governance, privileged escalation restrictions, patch enforcement, log/audit configuration, encryption settings and firewall rules—prioritising compliance over simple configuration. • C...

    $25 Average bid
    $25 平均报价
    23 个竞标

    My production server runs on cPanel/WHM and I need a security-focused specialist to take over continuous protection duties. The priority is to keep the box clean, locked down, and fully recoverable at all times, so I’m commissioning an ongoing monitoring and troubleshooting arrangement rather than a one-off audit. Scope of work • Start with a comprehensive security audit: scan for existing malware, review logs, check permissions, and verify that all core services (Apache/Nginx, Exim, MySQL, SSH) follow current best practices. • Implement layered defences aimed at the three concerns I flagged—malware detection & removal, unauthorized-access prevention, and data encryption/protection. Typical tools might include CSF/LFD, ModSecurity rulesets, hardened SSH polic...

    $84 Average bid
    $84 平均报价
    16 个竞标

    After moving my sites from RamNode’s cloud hosting to a new VPS, several core services stopped working. WHM and cPanel are installed and accessible, yet there were issues with the site. I changed the mailservers back to cloud hosting. What I need right now is a full review and clean configuration of the server so every component—mail server, FTP service, and DNS including nameserver glue—operates smoothly. Please log in, audit each service, adjust the settings, and document any permanent changes you make. Before I repoint the real nameservers, show me a working preview link or temporary hostname that proves the sites load correctly and email delivers both ways. Please also help me verify the glue records through WHOIS, so include that in your checklist. Deliverable for...

    $136 Average bid
    $136 平均报价
    42 个竞标

    Deploy Python AI Chatbot lên VPS — Code có sẵn, chỉ cần đấu nối Tôi đã có sẵn hệ thống AI chatbot hoàn chỉnh (Python/Flask, GPT-4o, SQLite) trên GitHub private repo. Code đã test xong, 28/28 tests pass. Cần thuê người làm DUY NHẤT phần deploy và đấu nối: Việc cần làm: Deploy Flask app lên VPS Ubuntu (uWSGI + Nginx + systemd) Cấu hình webhook Facebook Messenger (tôi cấp quyền Page) Cấu hình webhook Zalo OA (tôi cấp quyền OA) Gắn REST endpoint cho web form trên website có sẵn Cấu hình Telegram Bot gửi notification Kết nối Google Sheet API (service account) Cấu hình SSL, domain, .env Test end-to-end trên môi trường thật Hỗ trợ fix bug dep...

    $113 Average bid
    $113 平均报价
    12 个竞标

    1- Update application calls should have zero delay so that calls go at full speed. 2- Latency is very important — locally it's 250-300ms, so after deploying on AWS it should be minimum 200ms. So delay = 0 and latency should be low so calls hit fast. 3- We need to pick jobs, and for that we need to eliminate 429, 403, and 504 errors. Why does 429 come? Because we reuse the same token too fast. 403 comes when multiple calls hit from the same IP or combination calls hit together. 504 doesn't come that often, so for that we can keep a retry mechanism. 4- To eliminate 429, we need to use multiple tokens, because a job will only be picked when calls go without even a single 429, with latency 200-250ms and delay 0. 5- For that, we need to do the following: Enter one combination of...

    $15 / hr Average bid
    $15 / hr 平均报价
    86 个竞标

    ROLE SUMMARY We are seeking a hands-on AI Systems Engineer with strong DevOps and LLM integration experience to design, deploy, and optimise a self-hosted AI agent (OpenClaw) running on a VPS. This is not a basic chatbot project. The role involves building a persistent, autonomous AI system that integrates: • LLMs (OpenAI, Claude, etc.) • Messaging platforms (Telegram) • Web-based dashboards • Task execution workflows CORE COMPETENCIES REQUIRED 1. DevOps & Infrastructure (Non-negotiable) The candidate must have real production deployment experience: • Linux server management (Ubuntu preferred) • VPS provisioning (Hetzner, AWS, DigitalOcean, etc.) • Containerisation: • Docker • Docker Compose • Reverse proxy setup: • Nginx • S...

    $378 Average bid
    $378 平均报价
    89 个竞标

    I have a VPS server configured and ready to host a sales-focused chatbot that plugs directly into my website. The primary goal is to guide visitors toward the right products through smart, real-time recommendations, helping convert casual browsing into purchases. Here is what I expect: • A production-ready server environment installed with the framework you feel is most efficient for NLP and conversation flow. • Secure API or JavaScript widget that lets me drop the chatbot onto any page of the site with minimal code. • Product-recommendation logic wired to my existing product catalogue or feed, so the bot can surface items dynamically based on user input. • Clear documentation covering server setup, environment variables, and how I can retrain or update intents...

    $107 Average bid
    $107 平均报价
    114 个竞标

    I need a Cyclos-certified system administrator to perform a clean installation of Cyclos 4 on my server and configure it specifically for a community-currency environment. The job goes beyond simply spinning up the software: once the core platform is running, I want the Payment systems, Member management, and Marketplace modules fully enabled, tested, and ready for real-world use. Please secure the installation, connect any required dependencies (Java, PostgreSQL, reverse proxy, HTTPS, mail service, etc.), and walk me through basic administrative tasks so I can manage users and currencies on my own. SSH access to a fresh VPS can be provided immediately. I will consider the work complete when the portal is accessible over HTTPS, all three modules operate without errors, and I have a brie...

    $993 Average bid
    $993 平均报价
    92 个竞标

    I’m running a Linux VPS on Ubuntu and need a fresh OpenVPN installation configured as a site-to-site tunnel to my office network. Default security settings are fine—no extra encryption tweaks or two-factor layers required—so the goal is simply a reliable, auto-starting link that routes selected subnets both ways. Here’s what I expect from you: • Install the latest OpenVPN packages, enable IP forwarding, and apply any necessary UFW/iptables rules. • Create the CA, keys, and certificates, then build matching server and peer configurations. • Supply the peer-side .ovpn (or equivalent) file and guide me through importing it on our edge router or secondary Linux box. • Verify traffic flow end-to-end (ping, basic service checks) and ensure the ...

    $30 Average bid
    $30 平均报价
    43 个竞标

    I run an e-commerce site and need a specialist to connect the domain to Cloudflare, tune it for best practice security, and make sure the key response headers are in place. Here is what I’m after: • End-to-end Cloudflare configuration on my primary domain, including DNS records moved or verified inside the Cloudflare dashboard and the site fully proxied behind their network. • An active, valid SSL/TLS chain so every page loads via HTTPS without mixed-content warnings. • Implementation of modern security headers—at minimum Content-Security-Policy, Strict-Transport-Security, and X-Frame-Options—plus any others you recommend for an online store. • A quick performance sanity check (caching rules, Brotli, image optimization, etc.) so I’m ge...

    $19 Average bid
    $19 平均报价
    25 个竞标

    I need a reliable hand for just four hours each week to keep our online presence running smoothly. The first priority is our Linux VPS: you will schedule and verify regular backups, watch security logs and firewalls, and tune performance so pages stay fast even during traffic spikes. While you are in the server, you will also handle day-to-day website care. That means posting fresh content when I supply it, squashing any bugs that users report, and tightening site security patches as they appear. If an advert or banner needs to go live, you will drop it in and test the links. The final slice of the role is light digital marketing. Think quick social posts, scheduling promos, and launching or pausing ads that I prepare. Clear weekly reports—backup status, uptime, tasks completed, an...

    $6 / hr Average bid
    $6 / hr 平均报价
    28 个竞标

    Project Overview I am looking for an experienced developer/devops professional to help me set up and deploy Listmonk using Docker and Docker Compose, and take it live for production use. The objective is to build a fully functional, self-hosted email marketing system that is stable, secure, and optimized for sending outbound campaigns. Scope of Work 1. Docker-Based Installation Set up Listmonk using Docker and Docker Compose Configure PostgreSQL database correctly Ensure all services run reliably 2. Server & Deployment Setup Deploy on VPS (AWS / DigitalOcean / similar) Configure domain (e.g. ) Set up reverse proxy (Nginx or similar) Install SSL certificate (Let’s Encrypt) 3. Email Configuration (Critical) Configure SMTP (Gmail / Amazon SES / SendGrid / other) Ensure proper ema...

    $253 Average bid
    $253 平均报价
    26 个竞标

    I’m looking for rapid, hands-on help to diagnose and fix a production server that is currently misbehaving. The priority is to identify the root cause, apply a clean fix, and document what was done so the issue does not re-appear. Please tell me about the similar server problems you have resolved in the past, the technologies or operating systems you are most comfortable with, and roughly how quickly you can begin. Solid, relevant experience is what will guide my choice.

    $233 Average bid
    $233 平均报价
    35 个竞标
    Looking for SRE
    4 天 left
    已验证

    SRE / DevOps Engineer We’ve built a real-time marketplace. Speed and reliability matter more than anything. We’re live. Things move fast. We need someone who can take ownership of infrastructure and make it solid. What I need you to do - Take full ownership of infra and DevOps - Stabilize the system under real usage - Improve performance, uptime, and response times - Set up proper monitoring, alerting, and logging - Handle deployments cleanly with zero downtime - Lock down security and access properly - Identify weak points and fix them without being told Current stack (you should be comfortable here) - Backend: Node.js - Frontend: React / mobile app - Infra: AWS (EC2, S3, likely more coming) - APIs: real-time interactions, latency matters - Early-stage system, not perfec...

    $22 / hr Average bid
    $22 / hr 平均报价
    104 个竞标

    I need a lightweight, self-hosted URL shortener that runs on my VPS under my own domain and uses Java for the backend with a MySQL database. The core feature is the ability to create fully branded links such as (custom slugs, no third-party dependency) and redirect them instantly. The admin dashboard can stay basic and purely functional; as long as I can add, edit, disable, and delete links quickly, that’s perfect. Analytics must be baked in—total and unique clicks, referrer data, visitor location, and timestamps—all viewable in the same interface. Every redirect has to be fast, reliable, and HTTPS-secure; I already have an SSL certificate on the server, so the application just needs to respect it. Full code ownership is essential. Please include: • A clean Java ...

    $454 Average bid
    $454 平均报价
    82 个竞标

    I need a small self-hosted app that turns any email link I create into a clean, branded URL that lives on the domain I already own. The redirect must keep the look and feel of my brand while giving me insight into how each link performs. Here’s what matters most: • A simple web UI where I can create and edit short, customizable slugs (e.g., ) • An analytics dashboard that records total clicks, unique clicks, referrer, location, and date-time stamps • Fast, reliable redirects with no third-party dependence You’re free to pick the tech stack you’re most comfortable with, as long as it installs on my VPS and the code remains fully under my control. Please include setup instructions and a short read-me so I can redeploy or move servers later if needed. I&rsq...

    $142 Average bid
    $142 平均报价
    97 个竞标

    I run a cluster of more than five WordPress sites on DigitalOcean and need someone who can step in as my go-to technical partner. The work is ongoing and will be billed on a monthly maintenance basis, so consistency and reliability matter just as much as raw skills. Each month you’ll make sure everything runs smoothly: applying core, theme, and plugin updates, tightening security, keeping performance on point, and making sure off-site and on-server backups are intact and restorable. The stack is flexible—I’m open to cPanel, Plesk, or working without a panel if that keeps the servers lean—so feel free to recommend whichever setup you believe will serve long-term stability and speed. I’m currently on DigitalOcean droplets and may expand, so your advice on scal...

    $151 Average bid
    $151 平均报价
    50 个竞标

    I need a single .img file that I can flash straight to a micro-SD, slot into a Raspberry Pi 4, power on, and start mining—no extra setup, no internet connection, just plug-and-play. The image must boot directly into an advanced graphical interface that lets me monitor hashrate, temperature, accepted shares, pool status, and switch coins without touching the command line. The core requirement is support for the three main algorithms I selected—SHA-256, Ethash, and Cryptonight—so the device can tackle my full portfolio of roughly forty coins. Performance matters: the system should auto-detect optimal overclock settings for the Pi 4, make efficient use of its GPUs/CPUs, and offer pool configuration options over the local network while remaining completely self-contained (...

    $234 Average bid
    $234 平均报价
    16 个竞标

    My website is hosted on GoDaddy and is still served over plain http. I need a professional who can take me all the way to a fully secure https setup. I do not yet have an SSL certificate, so part of the job is acquire the right one. Once the certificate is purchased, I’ll rely on you to install it, configure the server, and make sure every request is redirected automatically from http to https. The finished result must show the secure padlock on every page with no mixed-content warnings. Key deliverables: • Advise on and obtain the SSL certificate • Install and activate it on my GoDaddy hosting account • Set up 301 redirects site-wide • Fix or flag any mixed-content issues so all assets load securely • Test in major browsers and provide a short ha...

    $15 Average bid
    $15 平均报价
    49 个竞标

    Description: I am looking for an existing dating CMS developed in a modern and easily understandable programming language (PHP or other common technologies). The following requirements are important to me: • The system must be based on up-to-date and secure versions of backend and database technologies. • It should include a modern, user-friendly, and German-language frontend for end users. • A well-designed and intuitive admin backend is required, allowing me to manage settings, content, and users efficiently. • The system should have a modular architecture and be easy to extend. • The code must be well-structured and/or documented (e.g., via Git or similar), so that my own developers can quickly understand and further develop it without relying on the origi...

    $19 / hr Average bid
    $19 / hr 平均报价
    166 个竞标

    look, this panel must be connected to zunga poker from fBk, this zunga poker texas holdem is on fb, I need a panel with whom when I enter the panel with my token or fBk password or user id, when I go to the panel and sit on the board the panel generates ds chips for me it takes from others or I don't know what, the panel must have options so that I can enter with 5-7-10 profiles if zslim, or if possible ds mi panel me generates chips, achieves a big level on profiles, takes all the rewards that zunga gives, it's even better, but I need a panel because there are people, you can see when you play that fo exist and people work with it, I need a panel to generate chips for any peofil on a saw who has an account, 10-20-30 profiles a day, I need a panel that generates chips for me, the...

    $2451 Average bid
    $2451 平均报价
    80 个竞标

    I have a small middleware layer that sits between two SaaS platforms, receives raw JSON, reshapes it, performs a few calculated roll-ups, and then pushes the cleaned payload back out through a remote API. The work is 100 % back-end: no HTML, no JavaScript, no database, just pure PHP. What I need you to do • Modify incoming data structures so they match the target schema (field mapping, nesting, key renaming, type casting). • Aggregate sets of records into concise summaries before dispatch (totals, counts, grouped objects). The code has to be clean, readable and function/procedural oriented, making smart use of native array functions, generators. We use our own framework based on vanilla PHP. Deliverables • A self-contained PHP that accept a JSON string or a GET/PO...

    $27 Average bid
    $27 平均报价
    80 个竞标
    HTML Site Hosting & Setup
    3 天 left
    已验证

    Dynamic dashboards with all moving objects

    $272 Average bid
    $272 平均报价
    108 个竞标

    Hiring: Site Reliability Engineer (SRE) – Observability (1 month Contract) - Work from Office Location: Pune Employment Type: 1 month Contract Experience: 4–6 Years We are looking for a skilled SRE – Observability Engineer to manage and enhance monitoring solutions across complex systems. Key Responsibilities: • Design and implement end-to-end observability solutions (metrics, logs, traces) • Monitor application performance, APIs, networks, and infrastructure • Build dashboards, alerts, SLIs/SLOs for proactive issue detection • Automate monitoring, alerting, and incident response workflows • Collaborate with DevOps, development, and infrastructure teams • Provide L2/L3 support for observability tools and platforms • Ensure syst...

    $3871 Average bid
    $3871 平均报价
    16 个竞标
    Fix Dell T640 Motherboard
    3 天 left
    已验证

    My Dell PowerEdge T640 refuses to start. The system gives error lights and the power LED simply blinks. I have already: • double-checked all power connections • swapped in a known-good power supply • cleared CMOS and reset the BIOS None of these steps helped, so the fault appears to be on the motherboard itself. I’m looking for an experienced server-grade hardware specialist who can: 1. Walk me through advanced board-level diagnostics to pinpoint the failed component(s), or accept the board for bench testing if that proves easier. 2. Carry out (or instruct me on) component-level repair—re-soldering, replacing VRMs, caps, or any other defective parts discovered. 3. Verify that the board posts successfully and produces a stable, error-free boot. 4...

    $6 / hr Average bid
    $6 / hr 平均报价
    6 个竞标

    I need a small, purpose-built payload that I can inject into my own desktop application to probe for buffer-overflow weaknesses. Off-the-shelf fuzzers such as libFuzzer, AFL, or similar suites are off-limits for this exercise; the whole point is to rely on clean, hand-written C code and low-level debugging techniques. You’ll be working on a recent Linux distro where I can give you SSH access to a hardened test VM. Expect to spend most of your time inside vim, gcc, and gdb (remote debugging with gdbserver is fine if you prefer). The program you’ll attack is closed-source to everyone except you and me, so everything must stay in userspace—no kernel tricks, no external libraries that do the heavy lifting. What I’m after • A minimal C source file (or small set ...

    $120 Average bid
    $120 平均报价
    22 个竞标

    I have a fresh Proxmox installation in place and now need an experienced hand to complete the next step: configuring a set of Linux-based virtual machines from the ground up. Your job is to handle the full system setup and configuration workflow—networking, storage assignment, template creation, and any tweaks required so the VMs boot cleanly and are ready for application deployment. Please bring solid, demonstrable experience with the Proxmox VE interface, CLI utilities, and typical KVM/QEMU guest-optimisation practices. Once you’re done I expect: • A working pool of Linux VMs (Debian or Ubuntu preferred, but I’m open to other mainstream distros if you recommend them) • Basic resource limits, bridge/VLAN networking configured, and a brief hand-over note exp...

    $28 Average bid
    $28 平均报价
    22 个竞标

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