Linux Developers pentru angajare
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Freelanceri sponsorizați
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I'm Cloud Infrastructure & DevOps Engineer with 10+ years of experience designing, building, and operating high-availability, production-grade infrastructure across cloud and on-prem environments. Specialized in Proxmox clusters, Kubernetes platforms, mail infrastructure, Linux systems engineering, automation, and...I'm Cloud Infrastructure & DevOps Engineer with 10+ years of experience designing, building, and operating high-availability, production-grade infrastructure across cloud and on-prem environments. Specialized in Proxmox clusters, Kubernetes platforms, mail infrastructure, Linux systems engineering, automation, and scalable hosting architectures. Proven track record delivering resilient infrastructure for SaaS platforms, hosting providers, and enterprise systems, including HA clusters, container platforms, CI/CD pipelines, and large-scale email delivery systems. Strong focus on performance, security hardening, automation, and operational reliability. • Advanced System Administration: Over 10 years of expertise in Linux and Windows server environments, specializing in installation, configuration, hardening, troubleshooting, performance tuning, and production maintenance. • Cloud Infrastructure Management: Proficient in AWS (EC2, RDS, EBS, S3, CloudFront, VPC, IAM) and Azure (VMs, Web Apps, Database Services, CI/CD), designing scalable, secure, and cost-optimized cloud architectures. • High Availability & Infrastructure Architecture: Strong experience designing HA and failover architectures, multi-node clusters, redundancy models, disaster recovery strategies, and resilient production platforms. • Virtualization Technologies: Extensive hands-on experience with Proxmox VE, VMware ESXi, KVM, Xen, VirtualBox, OpenStack, and cluster-based virtualization platforms. • Containerization & Orchestration: Skilled in Docker and Kubernetes multi-node clusters, Rancher management, Ingress controllers, MetalLB, and container-based production deployments. • DevOps & CI/CD Automation: Experienced in building CI/CD pipelines using GitHub Actions and automation scripts, enabling reliable and repeatable deployment workflows. • Infrastructure Automation & Scripting: Strong automation background using Bash scripting and configuration automation to streamline provisioning, monitoring, and operational tasks. • Networking & Secure Connectivity: Strong knowledge of LAN/WAN/VLAN design, private networking, VPN technologies (WireGuard, SoftEther), firewall deployment, and secure access architecture. • Database Platforms: Skilled in MySQL, MariaDB Galera clusters, and PostgreSQL, including replication, clustering, failover, and performance tuning. • Web & Hosting Platforms: Extensive experience managing web hosting stacks, control panels (cPanel, Plesk, CWP, CyberPanel, VestaCP), and multi-tenant hosting environments. • Security & Hardening: Strong experience in server hardening, firewall configuration (pfSense, Sophos, Kerio), intrusion detection, vulnerability mitigation, and application security practices. • Monitoring & Performance Optimization: Proven ability to monitor system KPIs, analyze logs, troubleshoot bottlenecks, and optimize infrastructure performance under production load. mai puțin
Angajează pe mrkimoz
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Senior Systems & Security Engineer with 15+ years in enterprise-grade IT. I design, harden, and operate high-availability infrastructure, and I streamline delivery with automation and clean processes. My focus: reliability, security, and clear documentation—so changes are low-risk and handovers are...Senior Systems & Security Engineer with 15+ years in enterprise-grade IT. I design, harden, and operate high-availability infrastructure, and I streamline delivery with automation and clean processes. My focus: reliability, security, and clear documentation—so changes are low-risk and handovers are effortless. Strengths: Infrastructure architecture & operations (Linux/Windows, virtualization, networking) Security hardening, identity & access, monitoring/observability Automation & DevOps practices (CI/CD, config management, IaC) Migrations and upgrades with minimal downtime Concise runbooks, risk-aware planning, and stakeholder-friendly communication Certifications: CompTIA Security+, Microsoft MCSE/MCSA/MCITP Languages: English (C2), German (C1), native Romanian Location: Germany • NDA-friendly • Reliable and responsive mai puțin
Angajează pe iosifpeterfi
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About me I have worked over 20 years at IT and telecom companies at following positions: it support, system administrator, applications administrator and monitoring administrator expert. I am "System Administration and IT Infrastructure Services" certified. I follow KISS methods. I understand OSI layer. With me is...About me I have worked over 20 years at IT and telecom companies at following positions: it support, system administrator, applications administrator and monitoring administrator expert. I am "System Administration and IT Infrastructure Services" certified. I follow KISS methods. I understand OSI layer. With me is easy to setup systems. I am not picky about what systems to use but i do have experience what to use. I know following operating systems + distros: debian, ubuntu, gentoo, suse, redhat, centos, rocky linux, almalinux and arch linux, freebsd, netbsd, openbsd, sun solaris plus ms windows servers. I also know following systems: Web servers: Apache, Nginx, Lighttpd, Litespeed, Hiawatha. Javascript: nodejs,npm Java web servers: Tomcat, Jrun, Jboss Proxy systems: Haproxy, Varnish, Squid. DB servers: MySQL (and forks, including MariaDB), PostgreSQL Mail systems: Postfix,exim,dovecot.. and implementing: DKIM, SPF, MX, DMARC. Monitoring systems: Nagios, zabbix, cacti, grafana. SMS: SMSC, Kannel DNS: Bind, Djbdns, Dnsmasq. VPS: Vmware, Hyper-v, Proxmox, bhyve, kvm, xen, openstack.. Containers: docker, lxc, jail, kubernetes Cloud providers: AWS, Digitalocean, Azure.. My knowledge does not stop here. I troubleshoot easily. Let's chat Please see my reviews of my previous works.. PS! With my bid you will get one week free support for work done mai puțin
Angajează pe servermaster
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Started working as a Java and PHP developer before advancing into servers, cloud and network security. Worked as support executive for multiple webhosting data centers. Worked with cpanel, directadmin, plesk, aws, digital ocean, google cloud servers for over 15 years. I concentrate mostly on single and medium scale...Started working as a Java and PHP developer before advancing into servers, cloud and network security. Worked as support executive for multiple webhosting data centers. Worked with cpanel, directadmin, plesk, aws, digital ocean, google cloud servers for over 15 years. I concentrate mostly on single and medium scale projects, however large scale projects are definitely a part of my goal to be involved with a talented and coordinated team. mai puțin
Angajează pe jbosseu
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I bring over 15 years of extensive experience in the fields of system administration and DevOps, making me a seasoned professional in managing and optimizing IT infrastructures. With a strong foundation in virtualization technologies, I excel in creating efficient and scalable virtualized environments. My expertise...I bring over 15 years of extensive experience in the fields of system administration and DevOps, making me a seasoned professional in managing and optimizing IT infrastructures. With a strong foundation in virtualization technologies, I excel in creating efficient and scalable virtualized environments. My expertise extends to a wide range of Linux systems, and I am well-versed in handling various distributions, ensuring their stability, security, and performance. I have a proven track record of successfully deploying web applications, guaranteeing smooth and reliable online experiences for users. One of my core strengths lies in managing system updates and applying security patches promptly, reducing vulnerabilities and minimizing downtime. My commitment to network security is unwavering, and I implement robust measures to protect data and maintain the integrity of systems. Furthermore, my proficiency in Cisco networking solutions allows me to design, configure, and troubleshoot complex network infrastructures, ensuring seamless connectivity and optimal performance. Additionally, I have a solid understanding of <b> HPE (Hewlett Packard Enterprise) </b>equipment, enabling me to efficiently manage and maintain these devices to meet organizational needs. With my extensive knowledge, practical experience, and dedication to staying updated with the latest industry trends, I am well-equipped to contribute significantly to any organization's IT operations, ensuring they run smoothly, securely, and efficiently. mai puțin
Angajează pe rupa37
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✨ Experienced Software Engineer ✨ With over 15 years of expertise, I specialize in creating custom websites and applications that drive results for businesses of all sizes. My skills span SaaS, microservices, databases, and cloud computing, leveraging leading platforms like AWS and GCP. ✨ What I Offer: ✔ Custom...✨ Experienced Software Engineer ✨ With over 15 years of expertise, I specialize in creating custom websites and applications that drive results for businesses of all sizes. My skills span SaaS, microservices, databases, and cloud computing, leveraging leading platforms like AWS and GCP. ✨ What I Offer: ✔ Custom software solutions tailored to your business needs ✔ Expertise in Golang, PHP, TypeScript, JavaScript, Node.js, and Python ✔ Cloud solutions: Kubernetes, Serverless, AWS, GCP, Azure, DigitalOcean ✔ Scalable backend frameworks: Laravel, Symfony, Express.js, Next.js, Gin, Echo, Fiber ✔ Modern frontend frameworks: Angular, React, Vue ✨ Why Work With Me? ✔ Customer-focused: I prioritize your satisfaction and project success ✔ Reliable delivery: On time and within budget ✔ Post-completion care: Complimentary 15-day support and bug fixes Let’s bring your vision to life! ✨ mai puțin
Angajează pe k1ng440
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usmanbashir12100 usmanbashir12100
$50 USD/oră
✅ Top Rated ✅ 4+ Years Exp ✅ Verified FreelancerPakistanHello! We are Data Forge Analytics with over 5 years of experience in digital marketing, cloud computing, and e-commerce. I help businesses grow by optimizing their online presence, automating workflows, and managing campaigns. Expertise: Digital Analytics & Ads: Certified in Google Analytics and Tag Manager, I...Hello! We are Data Forge Analytics with over 5 years of experience in digital marketing, cloud computing, and e-commerce. I help businesses grow by optimizing their online presence, automating workflows, and managing campaigns. Expertise: Digital Analytics & Ads: Certified in Google Analytics and Tag Manager, I deliver insights and manage Google Ads campaigns to maximize ROI. Amazon & SEO: I create compelling product descriptions, optimize Amazon listings, and enhance visibility through SEO strategies. Cloud (AWS & Azure): I configure and manage cloud infrastructure, ensuring scalability and cost-effectiveness. Python & Automation: I automate tasks and solve problems using Python and script development. CRM & Email Marketing: I customize CRMs (Zoho, Salesforce) and execute email campaigns using Klaviyo and Mailchimp. From e-commerce optimization to cloud solutions, I offer a broad skill set to help your business succeed. Let’s collaborate to reach your goals! mai puțin
Angajează pe usmanbashir12100
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I have 7 years of experience deploying and maintaining a wide range of systems and services. My expertise includes: ✅ Server Operating Systems: Windows Server 2003 to 2024, Ubuntu, Debian, RHEL, CentOS. ✅ Directory service: Active Directory, OpenLDAP. ✅DNS, DHCP: Windows Server DNS, DHCP and Linux DNS, DHCP...I have 7 years of experience deploying and maintaining a wide range of systems and services. My expertise includes: ✅ Server Operating Systems: Windows Server 2003 to 2024, Ubuntu, Debian, RHEL, CentOS. ✅ Directory service: Active Directory, OpenLDAP. ✅DNS, DHCP: Windows Server DNS, DHCP and Linux DNS, DHCP services. ✅ Virtualization: Microsoft® Hyper-V, VMware Hypervisors (ESXI, vCenter), Proxmox, VirtualBox. ✅ Cloud Computing Platforms: AWS Amazon Web Services, Microsoft®, Google Cloud Platform(GCP). ✅ Self-Hosted Clouds: NextCloud, OwnCloud, Seafile. ✅ File servers: IIS FTP, proftpd, FileZilla FTP Server, SAMBA. ✅ Web servers: IIS, APACHE, NGINX ✅Scripting: PowerShell scripting, Bash Scripting ✅Containers: DOCKER, Windows Subsystem for Linux (WSL). ✅Backup Systems Veaam Backup, Iperius Backup, UrBackup. ✅ Mail servers: POSTFIX, EXIM, Microsoft Exchange 2000 to 2019, QMAIL ,Zimbra ,Mail Enable , SmarterMail, hMail. ✅ Database servers: MySQL, PostgreSQL ✅ Firewalls: Windows firewall,ISA/Forefront TMG, MikroTik, PFSense, Zywall and other Routers; ✅ Data Storage Systems: Netapp, FAS, EMC, VNX; ✅NAS: FreeNAS, TrueNAS ,Synology, QNAP, Buffalo ✅ Monitoring ZABBIX, CACTI, NAGIOS ✅ Hosting Panels: WHM-cPanel, PLESK, CyberPanel, aaPanel Why Choose Me? ✅24 hours availability ✅Unlimited revisions ✅Fast response Microsoft® Certified ** MCSA | MCSE | MCT ** mai puțin
Angajează pe AZTURK1
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I'm Imran Arshad, a full Stack Developer with 15+ years of immersive experience in the realm of programming. My expertise lies in turning your ideas into reality and I will help you empower your Business to reach its full potential by offering my services. I can design/develop all kind of simple CMS websites to the...I'm Imran Arshad, a full Stack Developer with 15+ years of immersive experience in the realm of programming. My expertise lies in turning your ideas into reality and I will help you empower your Business to reach its full potential by offering my services. I can design/develop all kind of simple CMS websites to the most complex Web Applications. I have also developed many Dashboards, dynamic database design and complex systems over the past 10 years. I had a chance to work on multiple Business domains, so for me Business domain does not matter, as long as you explain your requirements to me. Expertise: - Front-End Development & Back-End Development. - HTML/CSS, CSS3, Tailwind CSS, JavaScript, SAAS Development, jQuery, Prototype, Dashboard Designing and Development, Responsive/Mobile Friendly theme. - UI/UX Designing, Wire frame, Figma, AdobeXD, Adobe Photoshop - JavaScript Frameworks (AngularJS, ReactJS, VueJS, NodeJS, ExpressJS, NextJS, jQuery, Bootstrap) - eCommerce Solution (Custom Development, Shopify Website, Shopify Public/Private Apps, Magento, OpenCart, WooCommerce, Squarespace, BigCommerce, WIX Websites. - PHP (Almost all the frameworks and CMS, OOP and MVC), Laravel, Codeigniter. - For Mobile Apps, I can work with my friend/colleague on Native iOS & Android Apps (Swift, Kotlin), Cross-Platform (React Native, Flutter). Apple App Store and Google Play Store App Publish. Bot development, Blockchain, Telegram Bot, AI bot, Zoho, .NET technologies, C#, VB.NET, ASP.NET, MSSQL, Desktop App, Web Apps, Dynamic365, Dynamic CRM, SugarCRM, any CRM, PineScript, MT4, MQL, Web Scrapping, ML, AI. - AJAX, JSON, XML, SOAP, CURL, IMAP - AWS, S3, Cognito, Route 53, SES - Version Control (GitHub, BitBucket, Svn) - JIRA, Trello - 3rd party APIs Integration, Payment Gateways Integration (PayPal, Google Checkout, Authorize.net, Stripe, Creating full automated systems for scraping/sending data from/to protected sites, Python/Django, Web Scrapping. - Java, Java Spring Boot etc. - Moodle, Learning Management System. - Database (MySQL, MongoDB, SQLite, PostgreSQL, DynamoDB, MS SQL) - Redesigning Websites/Web Apps, redevelopment Websites/Web Apps. Dashboard Development. - Digital Marketing team, Social Media Marketing (Facebook, Instagram, TikTok, Twitter, YouTube etc.), Google Ads campaign, SEO, On-Page & Off-Page SEO etc. including contents writing, daily/weekly posting on social media accounts and many more. Skills: - Problem Solving and Debugging - Fixing bad/old code and doing step-by-step full code refactoring without breaking live mode. - Complex math calculation - Code testing - Brainstorming, new ideas/suggestions, innovation and solution provider Together, let's redefine excellence in digital innovation. Join me on this exhilarating journey, where boundless creativity meets unwavering expertise, and let's craft a digital masterpiece that transcends expectations. mai puțin
Angajează pe imranarshad87
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ZAWN Tech is a trusted software company founded in 2014, delivering complete digital solutions for startups and enterprises worldwide. Our certified developers combine deep technical knowledge with real-world project experience to build fast, secure, and scalable systems. Core Expertise Blockchain: Metaverse, Web3,...ZAWN Tech is a trusted software company founded in 2014, delivering complete digital solutions for startups and enterprises worldwide. Our certified developers combine deep technical knowledge with real-world project experience to build fast, secure, and scalable systems. Core Expertise Blockchain: Metaverse, Web3, NFTs, NFT Games, Smart Contracts, Arbitrage & Sniper Bots, DEX / DApp Development (Ethereum, BSC, Polygon, Solana, WAX). Web & SaaS Development: Full-stack using React, Node.js, Laravel, Django, and Next.js. Integration with Odoo, Bubble.io, Zoho, and Webflow. eCommerce: Shopify, WooCommerce, Magento, and custom marketplace platforms with payment, shipping, and ERP integrations. Mobile Apps: Native and cross-platform (Flutter, React Native, Android, iOS). AI & Computer Vision: Chatbots, GPT integrations, TensorFlow, OpenCV, and OCR systems. Game Development: Unity 3D, Unreal, and WebGL with multiplayer, blockchain, and AR/VR support. Trading & Financial Automation: MT4/5, TradingView, Binance, Interactive Brokers, and algorithmic trading bots. Hardware & IoT: Arduino, Raspberry Pi, ESP32, MATLAB, embedded control, and automation projects. With 200+ recommendations and over a decade of experience, we turn complex ideas into reliable, production-ready solutions — delivered with clear communication and long-term support. mai puțin
Angajează pe AwaisChaudhry
