Postgresql工作

我需要一套完整的方案，用实时视频流监控一颗白球的运动，并把它每完成一圈时的速度（以毫秒计）写入数据库。只做实时监控，不必录制或回放。 核心工作内容 - 通过摄像头获取实时画面，自动识别并追踪白球位置与轨迹 - 在白球每绕行一圈时计算圈速，并立即写入数据库 - 设计并搭建适合此场景的数据库（你可以自由选择关系型、时序或其他类型，理由充分即可） 技术方向 我倾向于看到 Python + OpenCV 这样的常用计算机视觉方案，但如果你有更高效的框架也欢迎提出。数据库部分只要能稳定写入并便于后续查询统计即可，MySQL、PostgreSQL、InfluxDB 等都可讨论。 交付物 1. 可直接运行的源代码与依赖说明 2. 数据库结构及初始化脚本 3. 简洁的使用文档：如何接入摄像头、启动服务、查看和导出圈速数据 4. 简单演示视频或在线演示链接，证明系统能在实时流中正确记录圈速 1:白色球体扔出时候顺时针，逆时针 2:从扔出球体开始位置，每一圈的速度是多少，ms 3:白色球体扔出去时候对应的数字是多少，每一圈到白色球体开始位置对应的数字是多少 验收标准 - 白球在摄像头视野内连续运动时，系统能稳定检测并记录至少 95% 的圈速事件 - 数据库内每条记录包括：圈序号、圈速(ms)、时间戳 - 实时延迟控制在 500 ms 以内（从圈完成到数据入库） 请在回复中说明你推荐的技术栈、预计开发周期，以及需要我提前配合的硬件或环境信息。

我正在筹建一套包含 Web 与桌面端的遥感影像处理业务系统，需要一位精通 Java 的全栈开发者将后端与前端整体落地。 项目概况 • 后端：基于 Spring Boot 或 Spring Cloud 微服务架构完成核心业务与 API，结合 MyBatis 持久化。需要合理拆分服务、设计分布式方案，并接入 Redis、RabbitMQ 等中间件。 • 数据库：使用 MySQL 或 PostgreSQL，完成表结构设计、索引优化和 SQL 调优。 • 前端：用 Vue 或 React 实现 SPA 界面，并封装成 Electron 桌面应用，保证与后端接口高效联调。 • 工程化：采用 Maven 多模块管理依赖与构建，使用 Git 做版本控制并解决冲突。 交付内容 1. 可运行的后端微服务代码库（含 README、初始化脚本、配置示例）。 2. 对应的前端项目与 Electron 打包方案。 3. 数据库脚本及性能优化说明。 4. 部署指南与关键技术文档。 验收标准 • 所有功能接口通过 Postman/Swagger 自测； • 前端界面在主流浏览器与桌面端正常运行； • 服务启动后无关键报错，核心接口 QPS 与响应时间符合设计预期； • Git 提交记录清晰，能够复现完整构建流程。 如果你熟练掌握上述技术栈，并有微服务及分布式系统实战经验，欢迎交流你的实施思路与大致工期，我会尽快确认并开始合作。

...efficiency and time zone considerations, the recruitment will prioritize candidates who speak mandarin. 工作职责 * 负责AI情感陪伴应用的前后端开发与集成 * 构建与大语言模型（LLM）的交互逻辑 * 设计给用户主动推送消息和聊天的功能 * 优化前端体验与性能，提升交互自然度与响应速度 * 与产品团队协作，基于现在已有的产品进行完善和功能拓展 技术要求 * 熟练掌握 JavaScript/TypeScript、React/Vue、Node.js * 熟悉 Python 或 Express/FastAPI 等后端框架 * 熟悉 OpenAI API / LangChain / Vercel / Supabase / Firebase 等任一类技术栈 * 熟悉数据库（PostgreSQL / MongoDB） * 有AI应用开发经验者优先（聊天、语音、情感识别等方向） * 有AI陪伴、AI社交、虚拟人格类项目经验的伙伴

# 跨境电商自动调价工具项目方案 ## 1. 项目概述 本项目旨在开发一款跨境电商自动调价工具，通过实时监控竞争对手价格并自动调整自身产品价格，帮助商家保持市场竞争力。该工具将支持多电商平台接入，提供批量操作功能，并可根据用户需求灵活配置调价策略。 ## 2. 系统架构设计 ### 2.1 技术选型 - 后端开发：采用Python语言，框架选择Django/Flask/FastAPI - 前端界面：使用Vue.js或React构建管理控制台 - 数据存储：关系型数据库PostgreSQL或MySQL - 任务调度：Celery配合Redis/RabbitMQ实现异步任务处理 - 部署方案：基于Docker容器化，可选Kubernetes集群管理 ### 2.2 系统架构 ``` [用户界面层] → [API服务层] → [业务逻辑层] → [平台适配层] ↓ [任务队列服务] ← [价格采集服务] ↓ [数据存储层] ``` ## 3. 核心功能模块 ### 3.1 平台接入服务 - 多平台API对接（支持Amazon、eBay、Shopify等主流平台） - 认证凭据安全管理（OAuth2.0、API Token等） - 智能请求频率控制 - 异常处理与自动重试机制 ### 3.2 商品管理模块 - 商品信息同步（全量/增量同步模式） - EAN/UPC编码管理 - 基于EAN的商品添加 - 基于EAN的商品移除 - 批量导入/导出功能 - 商品分类与标签体系 ### 3.3 价格监控系统 - 竞品价格采集（API直连与页面...

...个人购买中心：用户可以查看和访问他们购买的所有内容 评论和举报系统：用户可以对内容进行评论和举报不当内容 标签和分类：内容可以使用标签进行分类和搜索 多语言支持：平台将支持多种语言， 以服务于全球用户 通知系统：系统将通过电子邮件和站内通知提醒用户重要事件 创作者和管理员后台：提供内容管理、 销售数据分析和用户管理等功能 响应式设计： 平台将在各种设备上提供最佳的用户体验 安全性和备份：平台将实施安全措施以保护用户数据， 并定期备份数据 移动体验优化：平台将针对移动设备进行优化， 以提供流畅的移动体验 技能要求： 全线开发能力： 能够独立完成前端和后端开发任务。 前端技术：精通 React， 熟悉 HTML, CSS, JavaScript。 后端技术：精通 Python/Django 或 Node.js/Express， 熟悉 RESTful API 设计。 数据库：熟悉 MongoDB 或 PostgreSQL。 支付集成： 熟悉 Stripe 支付平台的集成。 云平台：熟悉 AWS, Google Cloud 或 Azure 等云平台。 多语言支持：熟悉 i18next 等国际化库。 响应式设计：熟悉 Flexbox, Media Query 等响应式设计技术。 安全开发： 熟悉常见的 Web 安全漏洞和防御措施。 英文：良好的英文读写能力。因为网站是英文。 良好的沟通能力和团队合作精神。 能够独立解决问题和按时完成任务。 **优先考虑：** 有类似平台开发经验者优先。

项目名称：AI智慧园区管理平台 项目概述： 我们正在寻找一支富有创新精神、技术实力雄厚的开发团队，共同打造一款集AI技术与大数据分析于一体的智慧园区管理平台。该平台旨在通过智能化、数字化的手段，全面升级园区管理效率，提升用户体验，促进园区内商业、生活、安全、税务等多方面的智能化融合。本项目将以Java为开发基础，采用分布式与微服务架构，确保系统的高可用性、可扩展性和灵活性。 项目技术要求： 1. 技术栈： 主要编程语言：Java（包括但不限于Spring Boot、Spring Cloud等框架） 分布式架构：基于Kubernetes或Docker容器化部署，实现服务间的松耦合与高效调度。 微服务架构：将系统拆分为多个独立的服务，如用户服务、支付服务、数据分析服务等，通过API Gateway进行服务间的通信与管理。 数据库：采用MySQL/PostgreSQL等关系型数据库存储结构化数据，结合Redis、MongoDB等NoSQL数据库处理高并发访问与缓存。 消息队列：Kafka/RabbitMQ等，用于解耦系统组件间的依赖，提高系统响应速度和容错性。 大数据处理：Hadoop/Spark等用于海量数据的存储与处理，结合Elasticsearch等实现快速检索与分析。 AI与机器学习：集成TensorFlow/PyTorch等深度学习框架，实现图像识别、自然语言处理等AI功能。 2. 功能需求： AI数字名片：通过人脸识别与AI分析技术，为园区内人员生成个性化的数字名片，支持快速识别与社交互动。 智慧园区：集成物联网（IoT）技术，实时监控园区内环境（如温湿度、空气质量）、能源使用情况及设备状态，实现智能化管理。 智慧商城+跨境电商：搭建在线商城平台，支持商品展示、在线...

，build a flask online clinic。　 albumy，set up a online second opinion clinic 。 on heroku server with flask and postgresql。 with Python flask，REACT and Ajax experience ，if with HIS experience, execllent。 to integrate with Google Maps API。 time：2019/07/30。

1、掌握MySQL、MSSQL、Oracle、PostgreSQL等一种或多种主流数据库结构以及特殊性。2、熟悉渗透测试的步骤、方法、流程、熟练掌握各种渗透测试工具。3、有主机、网络或Web安全渗透测试相关项目实施经验 。4、掌握安全漏洞发现和利用方法，具备一定的实战经验 ，有丰富渗透测试实战经验者优先。具体联系方式 [Removed for encouraging offsite communication which is against our Terms and Conditions -Section 13:Communication With Other Users]

Development Web application based java and Postgresql, we need Chinese employee.

...experience • Highly skilled developers with less than 1 year experience will also be considered • Proven track record of building and deploying web applications • Portfolio or GitHub profile showcasing relevant projects Technical Skills: • Frontend: React.js/Next.js, HTML5, CSS3, JavaScript/TypeScript, responsive design • Backend: Node.js, (or similar framework) • Database: MongoDB/PostgreSQL, database design and optimization • API Development: RESTful APIs, API integration • Version Control: Git/GitHub • Authentication: JWT, OAuth, session management • Payment Integration: Experience with Razorpay/Stripe/PayPal or similar • Deployment: AWS/Google Cloud/Azure, basic DevOps knowledge Nice to Have: • Real-time features (W...

I am looking to b...categories, and logic can be extended without major rewrite This flexibility is a key requirement. ⸻ SECURITY & PERFORMANCE • Secure authentication (JWT or equivalent) • Encrypted sensitive data • Rate limiting and abuse prevention • Audit logs • Scalable and maintainable codebase ⸻ TECHNOLOGY PREFERENCE • Backend: Node.js (NestJS) or Laravel • Frontend: React / • Database: PostgreSQL or MySQL • Queue/Workers: Redis or equivalent • Hosting: VPS (AWS / DigitalOcean / Hetzner) • HTTPS, backups, and deployment support ⸻ DELIVERABLES • Fully working SaaS web application • Original source code (no reused or leaked scripts) • Admin access and documentation • Deployment...

search the site - need developers to finish this off. Figma designs made need to integrate them and make backend. Need someone who know his shit and can actually complete the platform. Tech stack *Core Infrastructure* *Monorepo Management:* Turbo *Package Manager:* pnpm *Lan...(implied by file structure and usage of Radix primitives), Radix UI (Headless accessible components), Lucide React (Icons) *3D & Graphics:* (React Three Fiber (R3F), Drei (R3F helpers)) *Animations:* GSAP *Rich Text Editor:* Lexical *Forms & Validation:* React Hook Form *Backend & Services* *Backend Framework:* API Routes & Server Actions (Serverless) *Database:* Supabase (PostgreSQL) *Authentication:* Clerk *File Storage:* Cloudflare R2 *Webhooks:* Svix *Security:* jose (JWT handling)

search the site - need developers to finish this off. Figma designs made need to integrate them and make backend. Need someone who know his shit and can actually complete the platform. Tech stack *Core Infrastructure* *Monorepo Management:* Turbo *Package Manager:* pnpm *Lan...(implied by file structure and usage of Radix primitives), Radix UI (Headless accessible components), Lucide React (Icons) *3D & Graphics:* (React Three Fiber (R3F), Drei (R3F helpers)) *Animations:* GSAP *Rich Text Editor:* Lexical *Forms & Validation:* React Hook Form *Backend & Services* *Backend Framework:* API Routes & Server Actions (Serverless) *Database:* Supabase (PostgreSQL) *Authentication:* Clerk *File Storage:* Cloudflare R2 *Webhooks:* Svix *Security:* jose (JWT handling)

Looking for DevOps Engineer to Set Up Production Environment for SaaS Application Note: I prefer someone who speaks Arabic for easier communication. Description: I have a working SaaS application built with: • Backend: FastAPI • Frontend: (React) • Database: (PostgreSQL ) The application is already functional, and I have real clients. Now I need an experienced DevOps engineer to prepare a proper production-ready infrastructure. Scope of Work: I need help with: 1. Setting up Production Environment (secure & scalable) 2. Creating Staging / Testing environment 3. Implementing CI/CD pipeline 4. Server deployment (Docker preferred) 5. Security best practices (SSL, firewall, access control, secrets management) 6. Logging & Monitoring setup (error tracki...

Ya tengo el diseño inicial de la interfaz construido con V0 de Vercel en Next .js. Ahora necesito que lo conviertas en una aplicación funcional que: • Reciba y almacene datos de usuario junto con los documentos que ellos mismos suban. El usuario deberá aceptar "términos y condiciones" ya que está subiendo información confidencial • Guarde todo en una base SQL; me da igual MySQL o PostgreSQL mientras quede bien estructurado y con migraciones incluidas. • Exponga un API REST para altas, bajas, cambios y consultas, de forma que mi equipo pueda consumirla sin fricción. • Ofrezca un pequeño panel interno (puede ser dentro del mismo Next .js) para visualizar y filtrar la información almace...

...Full-Stack Developer ( + Directus) We are looking for an experienced Full-Stack Developer to maintain, and enhance, an existing ERP platform built on a modern JavaScript stack. The role is freelance/contract-based with scope for long-term collaboration. Tech Stack • Frontend: 15 (App Router), React 19, TypeScript, Tailwind CSS • Backend / CMS: Directus (Headless CMS) • Database: PostgreSQL • Infrastructure: Docker, Docker Compose • Deployment: Dokploy on Oracle Cloud VM ________________________________________ Key Responsibilities • Maintain and enhance existing ERP modules, including: o Student management o Internal operations tracking • Design and implement new features and workflows • Integrate third-party services such as: o Notifi...

I need a fully custom-built website that showcases a searchable, filterable product catalog. The site must be responsive, fast, and easy for me to update without relying on WordPress or Shopify. A lightweight tech stack such as HTML5, CSS3, JavaScript with a Node.js or PHP back end and a MySQL or PostgreSQL database would suit me well, but I’m happy to hear alternative suggestions that keep performance and security in mind. Core deliverables I’ll use to accept the project: • Front-end interface designed for mobile and desktop, including category navigation, product grids, detail pages, and an intuitive search/filter bar. • Back-end admin panel where I can add, edit, delete, and reorder products, upload images, and manage categories. • Basic SEO founda...

...platform. We are NOT looking for a full-stack developer, UI, or website. We need a backend engineer to build a simple, reliable batch ingestion pipeline. SCOPE Your task is to build a CLI-based ingestion script that: Reads a CSV file with book metadata Inserts records into a PostgreSQL database (Supabase) Handles 10,000–20,000 records efficiently Uses batch inserts (no per-row inserts) Runs outside HTTP (terminal / cron / worker) No frontend. No dashboard. No UI. TECH STACK (Flexible) Node.js or Python PostgreSQL CSV input Environment variables for DB connection OUT OF SCOPE Real-time processing Web UI File upload interfaces EPUB/PDF conversion SEO, frontend, or design DELIVERABLES Clean, documented script Instructions to run locally or on a ...

...tools. Technical Expectations Experience building large portals, directories, SaaS, or marketplaces Strong backend architecture skills Search implementation (Elasticsearch, Algolia, or similar) Complex admin dashboards REST or GraphQL APIs Scalable database design SEO-focused development Performance optimization Preferred (flexible): React / / Vue Node.js / Django / Laravel PostgreSQL / MySQL / MongoDB AWS / GCP / Azure Deliverables Scalable web platform Admin & institution dashboards API-ready backend for mobile apps Documentation & deployment support Performance & security implementation Proposal Requirements (Important – Read Carefully) To be considered, include: Portfolio of large platforms or dashboards Proposed tech stack & arc...

...IO, Go with gRPC, or an equivalent solution that plays nicely with iOS and Android clients. End-to-end encryption, push-notification hooks (FCM / APNs), and a RESTful or GraphQL API for ancillary data are highly desirable. Deliverables • Production-ready server code with clear setup instructions • Secure user authentication and encrypted message transport • Message persistence (MongoDB, PostgreSQL, or similar) with indexing for quick retrieval • Simple admin endpoint or dashboard for basic monitoring • Post-deployment support to ensure smooth integration into the mobile app I’ll provide app side endpoints and UI; your focus stays on the backend and real-time layer. If this sounds up your alley, tell me briefly how you’d architect it ...

Fix: Production Blank Screen on Replit-Deployed Full-Stack App (Dev Works Fine) Tech Stack: React 19, Vite 7, TailwindCSS 4, Node.js 20, Express 4, TypeScript, PostgreSQL (Neon), Drizzle ORM. Hosted on Replit (Autoscale deployment). The Problem: The app works perfectly in development mode, but after deploying to production on Replit, the browser shows a blank/white screen. No visible errors in the browser console (or provide any you do see). Build Process: Vite builds the frontend to dist/public, esbuild bundles the server to dist/index.js. Express serves the static files in production. The build command is npm run build && npm run db:push, and the production run command is node dist/index.js. What I Need: Diagnose why the production build renders a blank screen Fix the...

...Drei-Schichten-Modell (KI → Community → Profis) KI & Recommendation: NSFW-Detection, Abuse-Detection, Content Matching Frontend-Komponenten: Widgets für Token-Kauf, Altersprüfung, DRM, Lovense Control Projektmanagement & Dokumentation: Storyboards, technische Dokumentation, Deployment Guide Technologien & Infrastruktur: Backend: Node.js / Python / Go Frontend: React / Datenbanken: PostgreSQL, MongoDB, Redis, S3/IPFS Cloud: AWS / GCP / Azure API Gateway: REST / GraphQL, JWT, Rate-Limiting DevOps: GitHub Actions, Docker, Kubernetes, Monitoring (Grafana, Prometheus, Sentry) Lieferumfang: Inkl. Upload. Vollständiger Quellcode Architektur- & technische Dokumentation Token- & Payment-System Dokumentation Deployment-Anleitung Projek...

...Ensuring Stripe subscription and webhook logic is correct and idempotent - Cleaning up frontend and backend state mismatches - Verifying content unlock and entitlement logic works correctly for paid users - Making sure the app behaves correctly for new users, returning users, post-checkout redirects, and subscription edge cases Tech stack: - Lovable (no-code / low-code web app) - Supabase (Auth, PostgreSQL, Edge Functions) - Stripe (Checkout, subscriptions, webhooks) - Modern frontend with React-style state logic Requirements: - Genuinely full-stack (frontend and backend) - Real Supabase experience (auth, database, RLS, edge functions) - Shipped Stripe subscription products before - Systems thinking and source of truth mindset - Comfortable debugging someone else's messy s...

...international) Live cricket and football score view Live radio Live weather updates Technical Requirements Custom signaling server Custom media server or streaming pipeline Strong experience with low-latency audio and video systems Understanding of SFU and MCU architectures Mobile App: Flutter, React Native, or Native Android and iOS Backend: Node.js, Go, or Rust (proposal-based) Database: PostgreSQL, MongoDB, Redis Scalable and secure architecture (microservices preferred) Secure wallet and affiliate system Full source code and technical documentation required Who Should Apply Proven experience in building custom real-time communication platforms Strong knowledge of WebRTC internals, RTP/RTCP, and signaling Experience with media servers and real-time streaming ...

...communication and centralized configuration. Developed event-driven workflows using Apache Kafka for asynchronous data processing and system decoupling. Integrated Redis caching to improve application performance and reduce database load. Built and optimized REST APIs consumed by frontend applications developed using React (TypeScript, Redux). Worked with multiple databases, including Oracle and PostgreSQL for transactional data and MongoDB for unstructured and high-volume data. Implemented Docker-based containerization for microservices and deployed applications on Kubernetes clusters. Configured and maintained CI/CD pipelines using GitHub, enabling automated build, test, and deployment processes. Ensured application security, performance tuning, and exception handling across se...

...authentication systems (JWT, OAuth, API Keys, etc.) Handle data validation, error handling, and performance optimization Write clean and maintainable code Provide API documentation (Postman / Swagger preferred) Testing and debugging ✅ Required Skills: Strong experience in Node.js & Strong experience in React.js Experience working with third-party APIs Database knowledge (MongoDB / MySQL / PostgreSQL) Experience with RESTful API architecture Knowledge of authentication and security best practices Git version control experience ✅ Project Scope: API development for third-party application integration Frontend API integration support (if required) Documentation and testing Possible long-term collaboration based on performance...

...for building a modern prop trading platform inspired by FTMO, FundedNext, The5ers, and FXIFY. The platform supports real-time trading data, automated rule enforcement, secure payments, KYC verification, and community engagement. 2. Technology Stack Layer Frontend Technology 14+, TypeScript, Tailwind, shadcn/ui Backend Database Node.js (Express/NestJS), TypeScript MongoDB, PostgreSQL Authentication JWT, , OAuth Real-Time Payments CMS Hosting MetaApi, Crypto, Bank API, Stripe Payload CMS / Sanity Vercel, Render, Railway 3. Core Platform Features 3.1 User Dashboard ● Live MetaApi trading data ● Balance, Equity, Drawdown ● Profit Target Tracking ● Trade History (Charts + Tables) ● Monthly P&L Calendar ● Account Status (Active / Breached / Passed)

I need a blazing-fast, fully responsive online store built with and Tailwind CSS. Use whichever backend stack—Node.js or Python—helps you move quickest, pairing it with either PostgreSQL or MongoDB for data storage. The project must deploy cleanly on Vercel (Netlify is fine too) with seamless CI/CD. Core requirements • Server-side rendering plus rich Schema Markup so products surface on Google immediately. • Image delivery through Cloudinary with automatic compression and responsive breakpoints. • Secure checkout via Razorpay or Stripe, covering the full order lifecycle—cart, payment, confirmation, refunds. • Google Analytics 4 events for product views, add-to-cart, checkout start, and purchase. • An admin panel to add and edit ...

I need a full-stack developer to build a website in Node.js that cleanly presents three core areas—business listings, a blog section, and a product showcase—supported b...modular and easy for another developer to pick up later on. Key deliverables: • Responsive public site with the three content sections wired to dynamic data • Admin panel with role-based access and email/password authentication • Clean REST or GraphQL API between front-end and back-end • Deployment instructions and a concise README so I can run the project locally or on a VPS Database, postgresql Frontend react.js Hosting in hostingger vps hosting with docker Let me know your preferred tech choices within the Node.js ecosystem, an estimated timeline, and a quick note on ...

Las métricas ya existen en el backend y en la base de datos. El trabajo NO es crear métricas nuevas, ni rehacer lógica. Solo es consumir los datos existentes y mostrarlos correctamente en el dashboard. Las métricas incluyen interacciones, actividad de eventos y datos por organizador. STACK React (dashboard) Backend ya hecho Supabase (PostgreSQL) FORMA DE TRABAJO 100% remoto Trabajaremos en llamadas mientras explico el sistema Necesito a alguien que entienda código existente y avance rápido REQUISITOS Hablar español (obligatorio) Experiencia con React Experiencia conectando APIs / Supabase Saber trabajar sobre código ya existente AL POSTULARTE, INDICA Tu experiencia con React Si has trabajado con dashboards o m&...

My Ruby (Rails) API usually answers in milliseco...bottleneck—perhaps DB connection exhaustion, an elusive N+1 query, or a background job starving Puma threads. You will dive into the codebase, profile the request/response cycle, pinpoint the root cause, and supply a clean fix that restores consistent response times. Feel free to use rack-mini-profiler, New Relic, Scout, or your preferred Ruby profilers; the server runs Ruby 3.1 and Rails 7 on PostgreSQL. Deliverables • Diagnostic report summarising findings and root cause • Patch or pull request with the optimised code/configuration • Before-and-after benchmarks proving the improvement (log excerpts or profiler screenshots are fine) Once the patch is merged and latency graphs stay green for 48 hour...

...Requirements - Proven experience with GIS / Geospatial Systems - Strong understanding of graph-based routing - Experience working with directed networks Preferred background - Navigation engines - Logistics / routing systems - Mapping platforms This role is not suitable for someone who has only worked on map visualization or GIS layer analysis without real routing logic. Technologies used - PostgreSQL + PostGIS - pgRouting - Node.js / JavaScript - GeoJSON Notes - I’m open to technical suggestions regarding both tooling and implementation approach. - The API must be fast, with a response time not exceeding 2 seconds. - If this phase is implemented properly and the concept proves solid, there is a strong opportunity to open a dedicated project for the developer to build t...

...working well in isolation but failing in combination Your role is to improve reliability, coverage, and correctness, not to rebuild everything. Technologies & Tools in Use These are important to note before applying: Node.js Playwright for browser automation Network interception for API-based extraction HTML → Markdown conversion for structural parsing OCR-based fallback extraction for edge cases PostgreSQL + TimescaleDB for storage Cron-based execution with hourly runs The system uses multiple extraction methods in parallel and merges results based on confidence and validation rules. AI & Vision-Based Testing We have performed internal safety and validation testing using Claude Vision, particularly for: Visual leaderboard layout interpretation Cross-checking OCR-bas...

...data pipeline into a production-ready application. What I already know I need: • Solid command of modern C++ (17/20), efficient data structures, and multithreading techniques. • Experience building low-latency systems that ingest and process streaming market data. • Comfortable persisting large time-series datasets and keeping read/write latency predictable under load—whether that’s PostgreSQL, InfluxDB, Timescale, or a comparable solution. Pipeline scope My priorities are the Data collection and Data processing stages. You will design the ingestion layer, wire up real-time feeds, batch or stream-clean the data, and store it so downstream services can query it without noticeable lag. Visualisation can wait; right now I need the plumbing ro...

...looking for a senior full-stack engineer to build a secure, authentication-heavy web platform MVP. The project involves: - User authentication & verification - Role-based access control - Relationship-based data modeling - Private content access - Secure cloud deployment Product details will be shared after NDA and shortlisting. Required Tech Stack (Mandatory) Backend Python + FastAPI PostgreSQL (relational modeling) Redis (caching, rate limiting, OTP/session handling) JWT authentication (access + refresh tokens) Async/background task processing (Celery or equivalent) Frontend React + TypeScript preferred Tailwind CSS or similar utility-first styling Infrastructure AWS (Lightsail / App Runner / or any other you think can be best for cold start) Docker-based ...

... ↑ Expert Knowledge (System Prompt / Fine-tuned Model) Technical Requirements Language: Python (preferred) — open to Node.js for the automation layer if needed Key Libraries: OpenCV, Tesseract/EasyOCR, Playwright or pyautogui, OpenSpiel or PokerRL, SQLite or PostgreSQL for opponent tracking, Anthropic SDK / OpenAI SDK for LLM integration AI API: Must have experience integrating LLM APIs (Claude, GPT, etc.) into real-time decision systems — prompt engineering, structured output parsing, latency management, and caching strategies Deliverables: Fully functional bot that can autonomously play a free poker tournament from registratio...

1 Product & Inventory Management 1.1 Product Master Create, edit, and manage products Product categorization Product status (active/inactive) Mapping with brand,...Salary structure definition Allowances and deductions Monthly salary processing Payslip generation 4.4 Employee In / Out (Attendance) Daily attendance tracking In-time / out-time recording Attendance reports Payroll integration 5 General System Requirements Role-based login and authorization Audit logs for critical actions Responsive UI (desktop & tablet friendly) Secure REST APIs PostgreSQL relational database design 6 Deliverables for Freelance / Development Team Frontend (React JS) source code Backend (Spring Boot) source code Database schema & scripts API documentation Deployment gu...

I’m racing toward launch and need a backend ace who can dive straight into my Hostinger setup, show real code today, and keep pace with aggressive milestones. The environment is Python backed by PostgreSQL, with Hostinger’s AI tools playing a central role. First priority is wiring reliable cron jobs, refactoring what’s already in GitHub, and embedding the AI endpoints cleanly into the existing API layer. While you’re there, run a performance sweep—profile, optimise, and make sure every Postgres query is bulletproof. Deliverables for the opening sprint: • Pull request that proves the cron jobs execute on Hostinger and log cleanly. • AI tool integration wrapped in clear, testable Python modules. • Concise review memo highlightin...

...features on time Ensure application security, data protection, and best coding practices Required Skills & Qualifications: Bachelor’s degree in Computer Science, IT, or equivalent experience Strong understanding of programming fundamentals and software development lifecycle Experience with HTML, CSS, JavaScript, and at least one backend language Familiarity with databases such as MySQL, PostgreSQL, or MongoDB Knowledge of RESTful APIs and MVC architecture Experience with frameworks (e.g., React, Angular, Laravel, Django, or Spring) Strong problem-solving and analytical skills Ability to work independently and in a team environment Preferred Qualifications: Experience with cloud platforms (AWS, Azure, or Google Cloud) Familiarity with DevOps tools and CI/CD p...

...deliverability and inbox placement. Data Systems: Finalize CSV contact imports (with mapping), tagging logic, and dynamic segmentation. Analytics: Connect the frontend dashboard to live tracking (Opens, Clicks, Bounces, and Complaints). Subscription/Billing: Finalize Stripe integration (Production webhooks, invoice emails, and plan management). Tech Stack: Node.js (Express), React, MongoDB/PostgreSQL, Redis, GitHub Actions, Stripe, and Email APIs. Payment & Milestone Schedule: Payment is strictly tied to functional progress visible on the staging site. Milestone 1 ($150): The Functional Engine & Compliance. Deliverable: Working SMTP/API sending + Mandatory GDPR footers and Unsubscribe logic. Staging site live. Milestone 2 ($200): The Automation Brain. Deliverable...

I need about three hours of guided, screen-shared help moving product data that currently lives in several related Excel sheets straight into my PostgreSQL database. No transformations are required—just a clean import exactly as the data sits now. During the session we will • create or confirm the target tables and column types, • choose the quickest import method (COPY commands, pgAdmin’s import wizard, or any tool you prefer), • load every sheet accurately, and • finish by writing a few SQL queries to verify row counts, join related tables, and pull sample SKU-level results. Deliverables for me at the end of the call will be: • a working, repeatable import script or step-by-step notes; • the example SELECT queries we ran toge...

...multilingual interface (English, Hindi, Kannada) • Implement role-based access control • Improve SEO visibility and content discoverability • Enable structured content workflows and approvals • Deliver a scalable and future-ready architecture --------------------------------------------------- Technology Stack CMS / API: • Headless Drupal 10.x • PHP 8.x Frontend: • (React, SSR / SSG) Database: • PostgreSQL (preferred) or MySQL Hosting: • Linux server (SSL enabled, client provisioned) Caching (Recommended): • Redis / Varnish --------------------------------------------------- Scope of Work 1. Discovery & Planning • Requirement gathering and stakeholder inputs • Content audit and migration planning • GIGW complia...

...panel opens automatically so both sides can exchange any last-minute details before the visit. Scope I’m expecting from you 1. Responsive front-end (React, Vue or similarly modern stack) with intuitive navigation between “Find Services”, “My Bookings” and “Profile”. 2. Simple Node/Python/Go back-end (your call) exposing REST or GraphQL endpoints for user, provider and booking data. 3. PostgreSQL or MongoDB schema that supports ratings, availability slots and message threads. 4. Twilio, Firebase or comparable service wired in for SMS-based authentication. 5. No payment gateway for now—bookings confirm without collecting money. 6. Deployment script or Docker setup so I can spin the app up on a basic VPS and demo it to ear...

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PROJECT SUMMARY A secure collaboration platform for contractors, clients, and auditors to manage projects, deliverables, and compliance. CORE FEATURES: • Object storage with automatic backup to secondary object storage • Daily PostgreSQL database backups • Cloudflare proxy integration, Email + Password + OTP authentication • Email notifications for all key actions (Email API with preconfigured template will be provided) USER ROLES: • Admin, Employees, Contractors, Client Users, Auditor ADMIN: • MSA/Agreement uploads • SOW management with project version • Create other users and assign them roles • configure object storage for current and backup • Orgnaization name and logo setup - Set contractor hourly rate, approve work for con...

...optimization** - Minification, cache, lazy loading 11. **Implement analytics** - Google Analytics or similar 12. **Improve admin dashboard** - More info and controls --- ### REQUIRED SKILLS: **Mandatory:** - Python (web server experience) - JavaScript (ES6+, DOM manipulation) - HTML5/CSS3 (responsive) - Linux/Ubuntu (server administration) - Nginx (configuration) - Git (version control) - SQLite or PostgreSQL - REST APIs **Desirable:** - Experience with Stripe/Mercado Pago - i18n experience - PWA experience - Technical SEO knowledge - Experience with betting/gambling systems --- ### EXPECTED DELIVERABLES: 1. Fixed code working in production 2. Documentation of changes made 3. Basic functionality tests 4. Maintenance instructions (if applicable) 5. 7-day post-delivery sup...

...a custom PostgreSQL-based system that brings four critical workflows into one place: • Inventory control with real-time stock level monitoring and fast barcode scanning for check-in / check-out. • Employee schedule management so I can see who is assigned to each job at a glance. • Job costing and progress tracking that ties labor, materials, and overhead together for accurate profitability insights. • A secure API endpoint that pushes material usage from each job directly into QuickBooks, eliminating double entry. You will design the data model, build the web interface (any modern stack you’re comfortable with), and implement the QuickBooks integration. Clean, well-documented code and straightforward deployment instructions are a must. If you&r...

...allow consolidation between branches when internet is available. 3. Architecture Requirements 3.1 Deployment Model Branch Server Hosts database and business logic Performs backups POS Terminals Client machines connected over LAN No direct database access (via services/API) 3.2 Technology Stack (Preferred) Platform: Windows Desktop Language: C# (.NET 8) UI: WinForms or WPF Database: PostgreSQL (mandatory for multi-terminal safety) Printers: ESC/POS thermal + A4 laser Barcode scanner: USB HID 4. Branch, Location & Terminal Structure 4.1 Entities Branch Independent offline unit Location Shop floor, warehouse, service counter Terminal POS1, POS2, etc. 4.2 Rules Inventory is tracked per location Each sale records: Branch Location Terminal Cashier Times...

...application focused on personal finance management. • Implement standard sign-up/login with secure authentication. • Design a clear, intuitive dashboard that loads quickly on desktop and mobile browsers. • Establish a well-structured backend (REST or GraphQL) and a modern frontend framework—whichever stack you work fastest and most confidently with. • Use a relational or document database (PostgreSQL, MySQL, MongoDB, etc.) and write concise, well-documented queries. • Follow best practices for code organization, version control (Git), and basic unit tests. Deliverables 1. Complete source code in a public or private repo I can access. 2. One-click (or scripted) deployment instructions for a mainstream cloud host (AWS, GCP, Azure, or simi...

...message, timestamps, and unread counters. Friends system (send request, accept, reject, and friend list). Group chats. User search functionality. Share events directly inside chat messages. Temporary photo messages (auto-delete after 24h). Online status and last seen tracking. Technical scope: Backend development using Node.js / Express. Database architecture and security in Supabase (PostgreSQL + RLS). Real-time messaging using Supabase real-time or WebSockets. Clean, scalable, production-ready code. Requirements: Proven experience building chat or messaging systems. Strong knowledge of Supabase and real-time features. Solid backend architecture and database design skills. This is the first phase of the social system, with potential long-term collaboration for fu...