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高级威客
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Your search for the perfect freelancer ends here! As a computer engineer with over two decades of experience in the mainstream IT industry, I can deliver a wide range of hi-tech services including: ✅ Linux system administration (Ubuntu, Debian, Red Hat, CentOS, and more) ✅ Cloud computing (AWS, GCP, Oracle Cloud,...Your search for the perfect freelancer ends here! As a computer engineer with over two decades of experience in the mainstream IT industry, I can deliver a wide range of hi-tech services including: ✅ Linux system administration (Ubuntu, Debian, Red Hat, CentOS, and more) ✅ Cloud computing (AWS, GCP, Oracle Cloud, DigitalOcean, Azure, and more) ✅ Website, server, and email migration ✅ Cybersecurity consulting ✅ Malware removal and security hardening ✅ Various CMS and E-commerce solutions and troubleshooting (WordPress, Joomla, Shopify, osCommerce, Zen Cart, Magento, MediaWiki, phpBB, and more) I work solo, and known among peers for my fast turnaround time and ability to fix difficult problems. Where others have failed, I will succeed. ✌️ My credentials include multiple certifications from Google, Microsoft, CompTIA, Cisco, AWS, cPanel, Plesk, MongoDB, (ISC)², Fortinet, and more. It took hundreds of hours of training and practice to pass the vendor exams, making me one of the most capable freelancer for your job. As of 2014, I am part of the Preferred Freelancer Program, the elite top 1% on this platform. As of 2022, I am a Freelancer Ambassador, tasked with special duties including moderating the community groups. My timezone is GMT +6, though I work round-the-clock to cater the needs of my clients in over 70 countries worldwide. Click on the "Contact" button now to get started. If I have bid on your project, just click that "Award" or "Chat" button. I look forward to working with you! Notes for my first-time clients: ☑️ I have undergone a thorough and rigid identity verification process to receive the blue verified badge. This makes me more trustworthy when dealing with confidential data. ⛔ I do not work through remote access software such as TeamViewer. ⛔ I do not "Accept" projects until verifiable login credentials are provided. 收起
雇用 Ekushey
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I build innovative ideas and dreams into reality. Over the years, I have developed my skills in Computer Science; most of them are self-taught; but my Engineering studies also helped me achieving greater levels. I spend most of my time in developing digital solutions for betterment of our society.I build innovative ideas and dreams into reality. Over the years, I have developed my skills in Computer Science; most of them are self-taught; but my Engineering studies also helped me achieving greater levels. I spend most of my time in developing digital solutions for betterment of our society. 收起
雇用 Mohammaduvez
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I'm a system administrator with over 20 years of experience with Linux. Experienced with embedded environments and have reversed engineered a number of devices to implement new firmware (ie. OpenWRT). My experience and skills: o >15 years administering Linux systems (Debian/Ubuntu/Mint). o >15 years...I'm a system administrator with over 20 years of experience with Linux. Experienced with embedded environments and have reversed engineered a number of devices to implement new firmware (ie. OpenWRT). My experience and skills: o >15 years administering Linux systems (Debian/Ubuntu/Mint). o >15 years diagnosing faults with servers, desktops, & network devices. o Hardware Knowledge: - Experienced with various architectures Intel, ARM (32/64), & PowerPC. - Experienced with various bootloaders including BIOS, PXE, UEFI, & U-boot. - Knowledgeable in various bus systems including I2C, I2S, SPI, & UART - Proficient in debugging digital systems using standard tools - Over 20 years through-hole soldering experience (with some SMT as well) o Software Knowledge: - LAMP: Apache HTTP, MySQL & Memcache - Email: Exim, Postfix, Cyrus IMAP, experience with SPF & DKIM - Network Filesystems: iSCSI, NFS & Samba - Networking: IPv4, DNS, DHCP, Firewalls (iptable & nft), OpenLDAP, & OpenVPN - CVS: Git & Subversion o Programming Languages: - Shell scripting, including Linux init & TUIs - C programming, in particular Linux drivers & U-boot - Assembly language on various architectures (including 8051, Z80, 68k, PIC family). - Java, and JavaCard - Scripting languages including PHP, Perl & Python. 收起
雇用 Celliwig
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Hi I'm Ahmed, I'm Redhat certified administrator. I have more than 8 years of experience in Linux Systems, VMware (Virtualization). Web applications, databases. Security, Deployment,Backup and lot of skills. let's have a quick chat. Looking forward working with you.Hi I'm Ahmed, I'm Redhat certified administrator. I have more than 8 years of experience in Linux Systems, VMware (Virtualization). Web applications, databases. Security, Deployment,Backup and lot of skills. let's have a quick chat. Looking forward working with you. 收起
雇用 Ahmedi89
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════════════════════════⭐️⭐️⭐️⭐️⭐️════════════════════════ Greetings, I am Daniel, a dedicated and seasoned freelancer specializing in computer solutions. With a wealth of experience in Windows platforms, I am deeply committed to delivering top-tier solutions to my clientele. As the founder of Danysys, I boast a...════════════════════════⭐️⭐️⭐️⭐️⭐️════════════════════════ Greetings, I am Daniel, a dedicated and seasoned freelancer specializing in computer solutions. With a wealth of experience in Windows platforms, I am deeply committed to delivering top-tier solutions to my clientele. As the founder of Danysys, I boast a proven track record of consistently achieving outstanding outcomes. My expertise spans a wide array of areas including malware removal, software development in various languages such as C, C++, C#, VB, .Net, Pascal, FreeBasic, PureBasic, Python, PHP, PowerShell, AutoIt, InnoSetup, Scraping, and Scripting. Moreover, I am always open to expanding my skill set by learning and incorporating new technologies beyond those listed. My unwavering dedication lies in ensuring job satisfaction and surpassing client expectations. Let us collaborate to breathe life into your project! ════════════════════════⭐️⭐️⭐️⭐️⭐️════════════════════════ Saludos, soy Daniel, un freelancer dedicado y experimentado especializado en soluciones informáticas. Con una gran experiencia en plataformas Windows, estoy profundamente comprometido a brindar soluciones de primer nivel a mi clientela. Como fundador de Danysys, me enorgullezco de tener un historial comprobado de lograr resultados sobresalientes de manera constante. Mi experiencia abarca una amplia gama de áreas, incluyendo la eliminación de malware, el desarrollo de software en varios lenguajes como C, C++, C#, VB, .Net, Pascal, FreeBasic, PureBasic, Python, PHP, PowerShell, AutoIt, InnoSetup, Scraping y Scripting. Además, siempre estoy abierto a ampliar mi conjunto de habilidades aprendiendo e incorporando nuevas tecnologías más allá de las enumeradas. Mi inquebrantable dedicación radica en garantizar la satisfacción laboral y superar las expectativas de los clientes. Colaboremos para dar vida a tu proyecto. 收起
雇用 dany3j
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✅As a highly skilled and experienced network and system administrator with over 08 years of expertise, I hold notable certifications such as CCNP, CCNA, RHCE, and Certified Ethical Hacker (CEH) . I have established myself as an accomplished network, system, and security engineer, capable of delivering complete...✅As a highly skilled and experienced network and system administrator with over 08 years of expertise, I hold notable certifications such as CCNP, CCNA, RHCE, and Certified Ethical Hacker (CEH) . I have established myself as an accomplished network, system, and security engineer, capable of delivering complete solutions for designing, configuring, automating, and managing network and system projects. My proficiency in using simulation software such as Packet Tracer and GNS3, as well as real-life network and system devices, make me a valuable asset for any project. My few hands-on experiences is : ✅Network Design by MS Visio, Cisco packet tracer, GNS3, and EVE-NG ✅Netacad CCNA and CCNP packet tracer Labs activities, projects design and solution ✅Cisco routers, switches, FTD, FMC, and ASA firewalls. ✅WatchGuard, Palo Alto, CheckPoint Firewall, SonicWall, Fortigate, pfSense, OPNsense, Huawei firewalls. ✅Ubiquiti UDM Pro, Unifi Cloudkey, USG UniFi Firewall , Security Gateway, Switch, and AP devices ✅ Netgear, Huawei, Aruba switch, DrayTek router, TP-Link and others vendor wireless router configurations. ✅MikroTik Routers and switch configuration ✅ SNMP monitoring configuration: Observium, Librenms, Cacti, Nagios core ✅ Cloud Administrator: Azure, AMAZON AWS , Google GCP, OVH Cloud and Digital Ocean ✅VMware ESXi, VMware Workstation, VirtualBox, and Proxmox. ✅Ubuntu, Red Hat, CentOS, Debian, openSUSE, and Kali Linux distributions. ✅Windows server administration (Windows Server 2008, 2012, 2016, etc.), Active Directory management, Exchange Server administration, DNS configuration ✅Servers: HP Proliant Servers, Dell/EMC Servers, IBM ✅VLSM/subnetting of small to large enterprises ✅VLANs, Inter-VLAN routing, VTP, CDP, Ether-Channel(LACP, PAGP) ✅DHCP, NAT/PAT configuration and IP helper address ✅static and Dynamic Routing protocols (RIP, OSPF, EIGRP, BGP) configuration ✅Layer-3 Redudent/backup links Using HSRP, VRRP ✅Port security, ACL( access list) configuration ✅Network troubleshooting and optimization ✅VPN Configuration Expert (GRE , SSL, IPSEC, PPTP, OpenVPN & DMVPN) ✅Network automation script for any Cisco and FortiGate devices using python 收起
雇用 touhidecevw
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With over 6 years of hands-on experience, I bring a wealth of expertise in crafting robust network security solutions and building dynamic web applications. My expertise in the Linux and Netwrok and WEb spans many areas, including Linux Kernel, Bash scripting, Network Protection(VPN, Snort, SSL/TLS etc.), Network...With over 6 years of hands-on experience, I bring a wealth of expertise in crafting robust network security solutions and building dynamic web applications. My expertise in the Linux and Netwrok and WEb spans many areas, including Linux Kernel, Bash scripting, Network Protection(VPN, Snort, SSL/TLS etc.), Network Service(DNS, DHCP etc.), HA and Git as well as with front end technologies like React, Typescript, Redux, Bootstrap. Continuous learning, problem solving and IP Networks are an inherent passion of mine and I thrive on challenge. With my experience and skills, I want to help you achieve your goals! My skills: - Network Engineering: Extensive experience designing, implementing, and maintaining complex network infrastructures. Proficient in configuring routers, switches, firewalls, and other network devices to ensure optimal performance and security. - Linux Programming: Skilled at developing custom solutions on Linux platforms, leveraging shell scripting, Perl, Python, C, Lua and other programming languages. Experienced of developing Linux system administration on websites on OpenWrt and SUSE15. - Security Expertise: Knowledgeable in cybersecurity principles and best practices, with a focus on network security and threat mitigation. Experienced at implementing not only Wireguard, SSL & IPsec VPN but also Snort and iptables. - Web Scraping: Extensive experience of dealing with website changes, handling dynamic content, respecting website terms of service, and aviding IP blocks or bans. - Project Management: Experienced Scrum Master with a strong background in agile development methodologies. Experienced of using Git and Jira. 收起
雇用 tanette
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Freelancer, having 10+ years of experience as a Linux/Windows System Administrator, Devops and Cloud Engineer. I am well experienced in System Administration, so including but not limited to: Mail Server: Zimbra, postfix, sendmail, PowerMTA Web Server: Apache, Tomcat, Nginx Scripting: shell scripting Control Panel:...Freelancer, having 10+ years of experience as a Linux/Windows System Administrator, Devops and Cloud Engineer. I am well experienced in System Administration, so including but not limited to: Mail Server: Zimbra, postfix, sendmail, PowerMTA Web Server: Apache, Tomcat, Nginx Scripting: shell scripting Control Panel: Plesk, WHM, Cpanel, Webmin, Virtualmin Virtualization: KVM, VMware, Citrix Xen Server, VMware Esxi, Proxmox, Advanced KVM command-line Security Compliance: PCI-DSS, DISA STIGs. Devops Tools: Docker, Docker-compose, Jenkins, GitHub,Vagrant, Vagrant with Docker as provider , Ansible, Foreman, Docker Swarm Network: Router configuration of cisco router, modem. IP subnetting. Database: Mysql, Postgresql, Oracle, MS-SQL Accounting: Tally 6.3, Tally ERP 9 on Linux Operating System: Debian-{8,9,10}, Centos-{3,4,5,6,7}, Ubuntu-{12,14,16,18,20.04,22.04}, Windows server -{2003, 2008, 2012, 2016, 2019,2022} Private cloud: Eucalyptus (Ubuntu Enterprise cloud) Cloud: AWS, Gcloud, Azure create VPC, public-private subnet, route table, Internet gateway, network acl, amazon ec2 instance Migration, updation. ERP: ERPnext Multitenant, ERPnext in Google Cloud K8s cluster with CEPH storage Log Server: Solarwind Kiwi syslog Domain Server: Windows AD, Samba4 Server provisioning and PXE installation for Linux and Windows. Source code Compilation and Cross compilation for various architecture. Server Administration, Webhosting, Web migration, Web and DB performance tuning, SSL Certificate Installation, Shell scripting, Deployment of various software and server, Mail server etc. Postgresql cluster, high availability, Load balancing. Master-master Replication. GlusterFS Replication and Geo-replication. Linux Distros: Kiosk live image. FFMPEG, v4l2loopback, Proxy: Haproxy MongoDB Replicaset on multi-node docker container. 收起
雇用 android2014213
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Do you need a GNU/Linux Debian expert? - DNS (bind9) - Web service (Apache, Nginx, Lighttpd) - Mail server (Sendmail, Postfix, Exim4) - Xen - Iptables - Bash scripting for integrated services - LaTeX - Project management (BPM, ITIL) - Mediawiki (extensions, customing, visualeditor) - ERP (odoo, axelor, erpnext) -...Do you need a GNU/Linux Debian expert? - DNS (bind9) - Web service (Apache, Nginx, Lighttpd) - Mail server (Sendmail, Postfix, Exim4) - Xen - Iptables - Bash scripting for integrated services - LaTeX - Project management (BPM, ITIL) - Mediawiki (extensions, customing, visualeditor) - ERP (odoo, axelor, erpnext) - Marketplace: cocorico I can do it! I have 20 years of experience. Hire me. 收起
雇用 debianguy
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Hello, this is Martin, Software Engineer. I work every day as a Python developer, I am a real specialist and Senior developer for backend applications. But I am not limited to that exclusively. I have many relevant skills to assist and help you. Since 2012 in this business has made me learn and sharpen my skills...Hello, this is Martin, Software Engineer. I work every day as a Python developer, I am a real specialist and Senior developer for backend applications. But I am not limited to that exclusively. I have many relevant skills to assist and help you. Since 2012 in this business has made me learn and sharpen my skills in the fields: ● Linux server administrator ● Django web applications ● Raspberry (software and hardware integration) ● Arduino programs ● Hardware automation ● Web development ● APIs (Creation and consumption) ● Databases management Cases that I love to work with: ● Python applications to automate any kind of process ● APIs creation to be used in the front end ● Raspberry solutions ● Hardware integration, even if it is not well-known hardware ● Electronic implementations to guarantee the accuracy of sensible procedures I use the newest and most advanced up to date languages and frameworks, including Python, Django, RestFramework, and many others, so I can guarantee that there is no lack of quality in my work. My most valuable service is related to post support. I don't disappear after delivering my work, I will stay with you until you are completely happy. Bringing you free support for any issue related to my code, that's the guarantee I offer to my clients. I will be here to assist you anytime, waiting for your feedback. Thanks for taking the time to review my profile. Kind regards. 收起
雇用 martini002
