Linux Developers For Hire
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Hire iosifpeterfi
CompTIA Security+ and Microsoft MCSE/MCSA/MCITP certified, with 15+ years of experience, 100+ delivered projects, and a 4.9 Freelancer rating across 101 reviews. I help businesses build, improve, and maintain software and infrastructure they can rely on. Clients usually come to me when they need someone who can take...CompTIA Security+ and Microsoft MCSE/MCSA/MCITP certified, with 15+ years of experience, 100+ delivered projects, and a 4.9 Freelancer rating across 101 reviews. I help businesses build, improve, and maintain software and infrastructure they can rely on. Clients usually come to me when they need someone who can take ownership—not just complete isolated technical tasks. I help launch new platforms, modernize existing systems, improve reliability and performance, automate operations, and solve problems that are slowing the business down. My focus is always the outcome: stable systems, smoother operations, less downtime, easier maintenance, and a setup that can grow with the business. I'm based in Germany and communicate fluently in English (C2), German (C1), and Romanian (native). I also operate my own hosting infrastructure, which can be useful for development, staging, testing, and deployment when a project needs it. You can expect clear communication, realistic commitments, and dependable follow-through. I'm also available after delivery for ongoing development, maintenance, monitoring, improvements, and long-term technical support. If you need someone experienced who can take responsibility for the technical side and stay involved long-term, I'd be glad to help. less -
Hire seandinwiddie
seandinwiddie seandinwiddie
$50 USD / hour
AI Full-Stack Dev | Web, Mobile, SaaS, APIs, CloudUnited StatesFull Stack Architect/Engineer & Technical Consultant I'm Sean Paul Payne Dinwiddie, a seasoned full-stack engineer and technical consultant with over two decades of experience crafting scalable, high-performance applications. I specialize in building modern solutions that deliver measurable business value. I'm a...Full Stack Architect/Engineer & Technical Consultant I'm Sean Paul Payne Dinwiddie, a seasoned full-stack engineer and technical consultant with over two decades of experience crafting scalable, high-performance applications. I specialize in building modern solutions that deliver measurable business value. I'm a battle-tested developer crafting high-performance digital solutions. Think of me as your technical force multiplier - I don't just write code, I architect scalable systems that stand the test of time and deliver ongoing value to your business. Core Expertise: • Web and software architecture and implementation • Application development with strict typing principles • Full-stack development with modern frameworks • Performance optimization and scalability solutions • User-centric interface design and development • Technical consulting and business value optimization less -
Hire np45
Für deutschsprachige Kunden: Dipl.-Kfm., Muttersprachler, 20+ Jahre Softwareentwicklung und Prozessautomatisierung. DSGVO-Expertise, Odoo/ERP, Shopify, KI-Integration. Ich denke unternehmerisch und setze technisch um — alles aus einer Hand. — I build businesses and the technology that runs them. When I optimize a...Für deutschsprachige Kunden: Dipl.-Kfm., Muttersprachler, 20+ Jahre Softwareentwicklung und Prozessautomatisierung. DSGVO-Expertise, Odoo/ERP, Shopify, KI-Integration. Ich denke unternehmerisch und setze technisch um — alles aus einer Hand. — I build businesses and the technology that runs them. When I optimize a process, I write the automation code. When I design a system, I deliver the working application. Twenty years of combining business operations with hands-on development. Track record: → Built and managed a 500-employee production plant in the Brazilian Amazon (international supply chain, extreme logistics) → Scaled purchasing from zero to €40M revenue in 2 years → Built customer service operations for Amazon Spain, MediaMarkt, ThePhoneHouse → 11 years running my own software company — ERP, CRM, e-commerce, process automation What I deliver: → Full-stack web applications — Python (FastAPI, Django, Flask), React, Node.js, PHP/Laravel → ERP & CRM — Odoo implementation, custom systems, data migration, training → Business process automation — workflow analysis, API integrations, AI-powered solutions → E-commerce — Shopify (API, themes, integrations), WooCommerce, PrestaShop → Data analysis & dashboards — Python pipelines, KPI tracking, web scraping → Business consulting — pricing models, market research, operations optimization → Professional content — copywriting, technical documentation, research (DE/EN/ES) Why clients choose me: → I think like a business owner, not just a developer — because I've been both for 20 years → Dipl.-Kfm. (German business degree) + full-stack development = I understand your business AND build the solution → Native German, fluent English, fluent Spanish — three markets, zero language barriers → AI-assisted development for faster delivery without quality loss → 100% on time | 100% on budget less -
Hire engkarimismail
engkarimismail engkarimismail
$50 USD / hour
✅Network|Voip|Cloud|Security|SysAdmin|DevOps|Mail✅MalaysiaNanoq LLC is a U.S.-registered software engineering and IT consulting company delivering web, mobile, cloud, AI, infrastructure, and cybersecurity solutions. We develop scalable web applications, mobile apps, SaaS platforms, APIs, admin systems, e-commerce solutions, booking platforms, and AI-powered applications...Nanoq LLC is a U.S.-registered software engineering and IT consulting company delivering web, mobile, cloud, AI, infrastructure, and cybersecurity solutions. We develop scalable web applications, mobile apps, SaaS platforms, APIs, admin systems, e-commerce solutions, booking platforms, and AI-powered applications using technologies including Flutter, Laravel, React, Node.js, Python, FastAPI, Vue.js, Firebase, MySQL, PostgreSQL, MongoDB, Docker, AWS, and Google Cloud. Our capabilities also include cloud architecture, DevOps, Linux and Windows infrastructure, networking, VoIP, cybersecurity, system migration, deployment, automation, and ongoing technical support. We focus on secure architecture, clean development, scalability, clear communication, and production-ready delivery. ✅Send me now 24/7 Availability Unlimited Revisions Fast Response ✅ Server Operating Systems Windows Server (2003 to 2024) | Ubuntu | CentOS | Debian | RHEL ✅ Directory Services Active Directory | OpenLDAP ✅ DNS and DHCP Windows Server DNS | DHCP | Linux DNS | DHCP ✅ Virtualization Microsoft Hyper-V | VMware ESXi | vCenter | Proxmox VE ✅ File Servers IIS FTP | proftpd | FileZilla | FTP Server | Samba ✅ Web Servers Apache | NGINX | Microsoft IIS ✅ Scripting and Automation PowerShell scripting | Bash scripting ✅ Containers Docker | Windows Subsystem for Linux (WSL) ✅ Backup Systems Veeam Backup | Iperius Backup | UrBackup ✅ Mail Servers Mailcow | Microsoft Exchange (2000–2019) | MailWizz | Postfix | EXIM ✅ Database Servers MySQL | PostgreSQL | MariaDB ✅ Firewalls and Security MikroTik | PFSense | Cisco Firewalls ✅ Networking Skills Cisco Routing and Switching | VLANS | OSPF | VoIP and IP Telephony | Network Penetration Testing Access Control Lists (ACLs) Security (MITM Attack Mitigation) ✅ Recovery Services Password recovery for accounts and routers | Disaster recovery planning ✅ VOIP Service Freepbx | freeswitch | CME | IP TELEPHONY | 3CX SYSTEMS ✅ Cloud Service AWS, DigitalOcean, Hetzner, Azure, Google Cloud Platform, IBM Cloud, Oracle Cloud, Alibaba Cloud, Contabo, Seva less -
Hire gianniszagoritis
gianniszagoritis gianniszagoritis
$55 USD / hour
Senior Software Engineer | AI, CRM, SEO, ShopifyGreeceI am a Senior Full-Stack Software Engineer with more than 10 years of experience building scalable, production-grade web, mobile applications, backend systems, and AI-powered platforms. I help businesses design and build reliable software systems — from architecture and development to deployment and scaling — with a...I am a Senior Full-Stack Software Engineer with more than 10 years of experience building scalable, production-grade web, mobile applications, backend systems, and AI-powered platforms. I help businesses design and build reliable software systems — from architecture and development to deployment and scaling — with a strong focus on performance, maintainability, and real-world usability. My core strength is building end-to-end systems that combine clean backend architecture, efficient databases, and modern frontend interfaces. I design and develop secure APIs, optimize system performance, and build applications that can handle real production workloads. I also specialize in AI and automation systems, including computer vision and real-time detection solutions, AI API integration, generative AI applications, chatbot development, retrieval-augmented generation (RAG), workflow automation, SaaS architecture, and full-stack development using modern technologies. Alongside my software engineering background, I have professional experience in architecture and 3D design, working with Revit, SketchUp Pro, 3ds Max, and Maya. My architectural experience includes residential 3D modeling, floor plans, building elements, spatial layouts, materials, architectural visualization, and presentation-ready renders. Core Expertise: ✅ Full-Stack Web Application Development (React, Next.js, Node.js, Python, Shopify, Webflow, Laravel, Moodle, Golang, C#, ASP.NET, C++, Java) ✅ Backend Architecture, API Design & Database Optimization (PostgreSQL, MSSQL, MongoDB, Supabase, Oracle, MySQL, Vector Database) ✅ CRM Solutions & Integrations — Salesforce, HubSpot, Zoho CRM, Microsoft Dynamics, CRM customization, automation, API integrations, and workflow optimization. ✅ Scalable System Design & Cloud Deployment (Docker, Kubernate, AWS/GCP/Azure, CI/CD) ✅ AI & Machine Learning Integration (PyTorch, Computer Vision, YOLO, RAG) ✅ Automation Systems & Real-Time Data Processing ✅ Performance Optimization & Production System Maintenance ✅ iGaming, Sports Betting, Casino, Betfair, MT5 bot development ✅ POS system integration ✅ 3D Architecture, 3D Animation, Revit, Maya, 3D MAX, AutoCAD, Sketchup Pro I focus on delivering production-ready solutions that are scalable, stable, and built for long-term growth — not just prototypes. less -
Hire PKSocket
I have been working in the field of IT for over 10 years. I have tested my skills in almost all kind of technologies. I believe in hard work and giving my best in each task involved in a project. I have skills in the following categories: * Programming (Python, PHP, Ruby, Javascript, React, NextJS, Django, Rails,...I have been working in the field of IT for over 10 years. I have tested my skills in almost all kind of technologies. I believe in hard work and giving my best in each task involved in a project. I have skills in the following categories: * Programming (Python, PHP, Ruby, Javascript, React, NextJS, Django, Rails, Flask, FastAPI, Laravel, Wordpress, Magento) * AWS (Route 53, AWS EC2, Lambda, RDS, CodeDeploy, Cloud9, Snapshots, LightSail, VPC Networking) * Azure (Virtual Machines, SQL DB, App Service, AKS, DNS, Subscriptions) * GCP ( Compute, Networking, Google Kubernetes Engine, Firewall, Bigtable, Cloud Storage) * Database (MySQL, MongoDB, PostreSQL, Microsoft SQL Server, Couchbase) * Web Servers (Gunicorn, Nginx, IIS Server, WSGI) * CI/CD ( Github Actions, Jenkins, Buddy, Azure DevOps, Google Cloud Build) * Automation (Ansible, Terraform, Chef, Puppet, Python, Bash Programming) * Containerization ( Docker, Compose, Kubernetes. Helm Charts, YAML) I have deployment and scaling expertise in almost all cloud platforms, and I am able to manage highly available and Enterprise-class systems. Terms of Service • 100% Client Satisfaction • Unlimited Revisions • Excellent communication availability 24/7 Hire me to get a high-quality solution within your given timeline. Thanks. less -
Hire AwaisChaudhry
*Click Contact to discuss your project* We are ZAWN Tech, a software and engineering team helping businesses turn complex ideas into reliable, production-ready products. Since 2014, we have delivered web platforms, mobile applications, SaaS products, AI/ML solutions, enterprise systems, automation, blockchain...*Click Contact to discuss your project* We are ZAWN Tech, a software and engineering team helping businesses turn complex ideas into reliable, production-ready products. Since 2014, we have delivered web platforms, mobile applications, SaaS products, AI/ML solutions, enterprise systems, automation, blockchain applications, IoT/embedded systems, and custom software for clients worldwide. With 349+ client reviews, a 4.9/5 rating, 95% on-time delivery, and 99% on-budget performance, our focus is simple: understand the business problem, build the right technical solution, and deliver it reliably. What we specialize in • AI & Machine Learning — computer vision, AI applications, automation, LLM integrations • Web & SaaS — React, Next.js, Node.js, Python, PHP and custom platforms • Mobile Apps — iOS, Android and cross-platform applications • Enterprise Software — business management systems, APIs, integrations and automation • Blockchain & Web3 — smart contracts, wallets, exchanges and custom blockchain solutions • IoT & Engineering — connected devices, embedded systems and industrial applications • Cloud & DevOps — deployment, infrastructure, APIs, databases and scalable architectures Why clients work with us ✅ 10+ years of experience on Freelancer ✅ 349+ completed client reviews ✅ 4.9/5 overall rating ✅ 95% on-time delivery ✅ 99% on-budget delivery ✅ Experienced multi-disciplinary technical team ✅ Full project lifecycle — strategy → design → development → testing → deployment → support We are particularly suited to projects where technical complexity, reliability and long-term maintainability matter. If you have an idea, an existing product that needs improvement, or a complex system that needs to be built from scratch, send us the requirements and we'll help you determine the best technical approach. less -
Hire Herculesz
Principal / Head AI & Full-Stack Engineer with 25+ years of experience architecting, building, and scaling complex software systems across web, mobile, cloud, CMS/eCommerce, and AI-driven platforms. I specialize in delivering production-ready applications from concept to launch, including SaaS platforms, marketplaces,...Principal / Head AI & Full-Stack Engineer with 25+ years of experience architecting, building, and scaling complex software systems across web, mobile, cloud, CMS/eCommerce, and AI-driven platforms. I specialize in delivering production-ready applications from concept to launch, including SaaS platforms, marketplaces, admin dashboards, mobile applications, automation systems, APIs, CMS websites, eCommerce stores, and intelligent AI-powered workflows. I bring a strong combination of full-stack engineering, cloud architecture, DevOps, CMS/eCommerce development, and AI/LLM expertise, with a proven ability to transform complex business requirements into scalable, secure, and user-focused digital products. My experience covers frontend architecture, backend engineering, database design, third-party integrations, real-time systems, performance optimization, CI/CD, observability, and production deployment. Technical Expertise: Frontend: React, Next.js, Vue.js, TypeScript, JavaScript, Tailwind CSS, Material UI, responsive UI/UX implementation Backend: Node.js, NestJS, Express.js, Laravel, PHP, Python, REST APIs, GraphQL, microservices, server-side architecture Mobile: Flutter, React Native, Expo, iOS, Android, cross-platform mobile app development CMS & eCommerce: WordPress, WooCommerce, Shopify, Wix, Webflow, custom theme development, plugin/app integrations, payment setup, product catalogs, checkout flows, landing pages, blog systems, and SEO-friendly website architecture Databases: PostgreSQL, MySQL, MongoDB, Firebase Firestore, Supabase, Redis, database design, optimization, migrations, and data modeling Cloud & DevOps: AWS, Google Cloud, Azure, DigitalOcean, Docker, Kubernetes, Nginx, CI/CD, GitHub Actions, server deployment, monitoring, logging, and observability AI & LLMs: OpenAI API, LangChain, RAG pipelines, AI copilots, conversational agents, semantic search, embeddings, prompt engineering, fine-tuning, Pinecone, pgvector, vector databases, and agentic workflows Payments & Integrations: Stripe, PayPal, Twilio, SendGrid, Firebase, Google APIs, third-party APIs, webhooks, CRM integrations, automation platforms, and API-based business workflows I have a strong track record of designing and delivering scalable SaaS platforms, marketplace systems, mobile apps, admin dashboards, CMS websites, eCommerce stores, automation tools, and AI-driven products that support real business operations. My work combines clean frontend experiences, secure backend systems, optimized databases, cloud-ready infrastructure, flexible CMS solutions, and practical AI innovation. As a hands-on technical leader, I am experienced in mentoring engineers, leading cross-functional teams, making architecture decisions, and aligning technical execution with business goals. I am passionate about building high-quality software that is scalable, maintainable, and ready for real-world users. less -
Hire servermaster
About me I have worked over 20 years at IT and telecom companies in the 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 the OSI layer. With...About me I have worked over 20 years at IT and telecom companies in the 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 the OSI layer. With me, it is easy to set up systems. I am not picky about what systems to use, but I do have experience with what to use. I know the following operating systems + distros: Debian, Ubuntu, Gentoo, SUSE, Red Hat, CentOS, Rocky Linux, AlmaLinux, Arch Linux, FreeBSD, NetBSD, OpenBSD, Sun Solaris, plus MS Windows servers I also know the following systems: * Web servers: Apache, Nginx, Lighttpd, Litespeed, Hiawatha. * Java web servers: Tomcat, Jrun, JBoss * Javascript: Node.js, Npm * Proxy systems: Haproxy, Varnish, Squid. DB servers: MySQL (and forks, including MariaDB), PostgreSQL * Mail systems: Postfix, Exim, Dovecot, and implementing DKIM, SPF, MX, and 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, Podman, LXC, Jail, Kubernetes * High Computing: OpenHPC, SLURM, MPI, and related * Cloud providers: AWS, DigitalOcean, Azure… I troubleshoot easily My knowledge does not stop here. Let's chat Please see my reviews of my previous works PS! As bonus, with my bid, you will get one week of free support for work done less -
Hire Beannsofts
As a software architect and Python developer with 10+ years of experience, I design and deliver full-stack, high-performance crypto trading automation systems for both individuals and organizations. Notable project: 10xTraders.ai – a fully cloud-native, multi-user crypto trading platform that supports strategy...As a software architect and Python developer with 10+ years of experience, I design and deliver full-stack, high-performance crypto trading automation systems for both individuals and organizations. Notable project: 10xTraders.ai – a fully cloud-native, multi-user crypto trading platform that supports strategy generation, live trade execution, smart notifications, user dashboards, and automated scaling, integrating TradingView charts and custom AI modules. My expertise includes: Strategy Engine Development: Design, testing, and deployment of custom and modular trading strategies (momentum, DCA, grid, arbitrage, trend-following, mean reversion, risk management overlays, etc). Exchange Integrations: Multi-exchange (Binance, Bybit, KuCoin, Coinbase, OKX, and more) spot, margin, and derivatives connectivity, robust error handling, and seamless authentication. Backtesting & Simulation: Fast, accurate historical and forward backtesting engines; optimization tooling; walk-forward analysis; metric dashboards. Automated Live Trading: Real-time execution, position sizing, dynamic stoploss/TP, risk management, error recovery, and live trade monitoring. Signal & Webhook Handling: Integration with TradingView, Telegram, Discord, email alerts; advanced webhook processors; custom event triggers. Trading Terminal UI: Web-based terminals for trade monitoring, live logs, analytics, and order management; deep TradingView chart integration; responsive dashboards. AI/ML-Driven Trading: Custom modules for signal generation, position management, and adaptive strategy optimization with machine learning. Portfolio Management: Multi-asset and multi-strategy allocation, wallet/rebalancing, cross-exchange tracking, P&L and risk statistics. Notification & Reporting: Real-time logging, alerting (web, mobile, email, Telegram), performance reporting, and alerting for trade state, errors, fills, or margin events. Cloud & DevOps: Docker, Kubernetes, Helm, NGINX, automated CI/CD pipelines, secure API exposure (REST/WebSockets), volume scaling for thousands of concurrent users. User & Multi-Tenancy: Auth, multi-user session management, isolated deployments, and secure separation for hosted trading platforms. API & Bot Management: REST/WebSocket APIs for strategy control, trade monitoring, status queries, bot lifecycle (spawn/stop/clone/update) at scale. Config & Secrets Handling: Secure, dynamic config management (YAML, JSON), secrets vaults, role-based access, per-user exchange keys. Deployment: Production experience with Linux, bare metal, AWS, GCP, DigitalOcean, Hetzner, OVH; scaling to global audiences. I combine technical rigor, creative engineering, and a passion for clean, robust code to deliver trading solutions that are powerful, resilient, and user-friendly. I’m ready to build and run your next-generation crypto trading or automation platform—end-to-end, from strategy to cloud! less
