Linux Developers do zatrudnienia
Wyświetlono 342 wyników
Wykonawcy sponsorowani
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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. mniej
Zatrudnij 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 mniej
Zatrudnij 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 mniej
Zatrudnij servermaster
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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. mniej
Zatrudnij rupa37
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👋 Hi, I’m Sarath K 🚀 Senior Linux System Administrator & DevOps Engineer Trusted by startups, SaaS founders, agencies, and enterprises worldwide 🌍 With 10+ years of hands-on experience, I help businesses deploy, fix, migrate, secure, and optimize production servers — fast, clean, and without downtime. 🔥 Clients...👋 Hi, I’m Sarath K 🚀 Senior Linux System Administrator & DevOps Engineer Trusted by startups, SaaS founders, agencies, and enterprises worldwide 🌍 With 10+ years of hands-on experience, I help businesses deploy, fix, migrate, secure, and optimize production servers — fast, clean, and without downtime. 🔥 Clients Hire Me When: 🚨 Their server is down or unstable 📧 Emails are failing or landing in spam ☁️ Cloud setups are misconfigured 🧩 Previous developers couldn’t fix the issue ⚡ They need urgent, expert-level help 👉 And I deliver — often within minutes or hours, not days. 🏆 What I Do Best (Proven by 90+ Reviews) 🐧 Linux & Server Administration Ubuntu, Debian, CentOS, AlmaLinux, Rocky, RedHat ⚙️ Performance tuning & optimization 🔐 Server hardening & monitoring 🦠 Malware removal & server recovery 🔄 Zero-downtime migrations ☁️ Cloud & DevOps - AWS, Google Cloud, Azure, DigitalOcean, Linode, Hetzner, OVH - EC2, Lightsail, Load Balancers, Firewalls - Docker & Docker Compose - CI/CD & deployment automation - Production-ready cloud setups - Web & App Hosting - Apache, Nginx, LiteSpeed - PHP, Laravel, CodeIgniter, Node.js, Python - React / Next.js deployments - SSL, HTTPS, Reverse Proxies - WebSockets & real-time apps 🗄️ Databases - MySQL, MariaDB, PostgreSQL - Performance tuning & optimization - Database recovery - Backup & restore strategies 📧 Email & DNS (Specialist Area) - Zoho, Google Workspace, Microsoft 365 - Postfix, Dovecot, Zimbra, iRedMail - SPF, DKIM, DMARC (Deliverability Expert) - Cloudflare DNS & security 🎛️ Control Panels - cPanel / WHM, Plesk, DirectAdmin - ISPConfig, CyberPanel, Virtualmin 🏢 Secure multi-tenant hosting environments - Security & Compliance - Server hardening & best practices - OWASP Top 10 mitigation - Firewalls & intrusion prevention - Malware cleanup & prevention 💬 Why Clients Love Working With Me ✔ ⚡ Extremely fast response ✔ 🗣️ Clear & honest communication ✔ 🧠 Fixes issues others couldn’t ✔ 💪 Goes beyond scope when needed ✔ 🧘 Calm under pressure (production emergencies) ⭐ “Cloudflare support was useless — Sarath fixed everything in 30 minutes.” ⭐ “Best server guy I’ve ever worked with.” ⭐ “Solved in minutes what others couldn’t in weeks.” 📩 Let’s Get Started If you need a reliable expert who gets things done right the first time, send me a message. 🔥 I’m ready to help you now. — Sarath K Linux • DevOps • Cloud • Servers mniej
Zatrudnij sktricks
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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! ✨ mniej
Zatrudnij k1ng440
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ismailrehman0331 ismailrehman0331
$40 USD / godzinę
PHP/Laravel | CMS| AWS | Node | Blockchain ExpertPakistan𝗗𝗲𝘃𝗢𝗽𝟯𝟲𝟬 𝗧𝗲𝗰𝗵𝗻𝗼𝗹𝗼𝗴𝘆 Team is your dedicated technology partner, specializing in custom web and mobile app development, UI/UX design, and digital branding. With expertise in PHP, JavaScript, MySQL, and API integration, we build scalable, high-performance solutions tailored to your business goals. We don’t just deliver...𝗗𝗲𝘃𝗢𝗽𝟯𝟲𝟬 𝗧𝗲𝗰𝗵𝗻𝗼𝗹𝗼𝗴𝘆 Team is your dedicated technology partner, specializing in custom web and mobile app development, UI/UX design, and digital branding. With expertise in PHP, JavaScript, MySQL, and API integration, we build scalable, high-performance solutions tailored to your business goals. We don’t just deliver projects—we become an extension of your team, committed to your growth and success. 𝗖𝗼𝗿𝗲 𝗦𝗲𝗿𝘃𝗶𝗰𝗲𝘀 & 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲: 𝗖𝘂𝘀𝘁𝗼𝗺 𝗪𝗲𝗯 𝗔𝗽𝗽𝗹𝗶𝗰𝗮𝘁𝗶𝗼𝗻 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 – Bespoke solutions using PHP, JavaScript, MySQL, and RESTful API integrations. 𝗠𝗼𝗯𝗶𝗹𝗲 𝗔𝗽𝗽 𝗗𝗲𝘀𝗶𝗴𝗻 & 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 – Cross-platform iOS and Android apps with intuitive UI/UX. 𝗪𝗲𝗯𝘀𝗶𝘁𝗲 𝗗𝗲𝘀𝗶𝗴𝗻 & 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 – Responsive, SEO-friendly websites optimized for user engagement. 𝗨𝗜/𝗨𝗫 𝗗𝗲𝘀𝗶𝗴𝗻 & 𝗣𝗿𝗼𝘁𝗼𝘁𝘆𝗽𝗶𝗻𝗴 – Wireframes, layout design, and interactive presentations. 𝗟𝗼𝗴𝗼 & 𝗕𝗿𝗮𝗻𝗱 𝗜𝗱𝗲𝗻𝘁𝗶𝘁𝘆 𝗗𝗲𝘀𝗶𝗴𝗻– Full branding packages including marketing materials (flyers, brochures). 𝟮𝗗/𝟯𝗗 𝗔𝗻𝗶𝗺𝗮𝘁𝗶𝗼𝗻 & 𝗠𝗼𝘁𝗶𝗼𝗻 𝗚𝗿𝗮𝗽𝗵𝗶𝗰𝘀 – Engaging visual content for storytelling and promotion. 𝗪𝗲𝗯𝗺𝗮𝘀𝘁𝗲𝗿 & 𝗠𝗮𝗶𝗻𝘁𝗲𝗻𝗮𝗻𝗰𝗲 𝗦𝗲𝗿𝘃𝗶𝗰𝗲𝘀 – Ongoing support, optimization, and performance monitoring. 𝗧𝗲𝗰𝗵𝗻𝗶𝗰𝗮𝗹 𝗖𝗼𝗻𝘀𝘂𝗹𝘁𝗶𝗻𝗴 & 𝗣𝗿𝗲-𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 𝗣𝗹𝗮𝗻𝗻𝗶𝗻𝗴 – Strategic guidance to ensure project success. Why Choose DevOp360 Technology Team? 𝗖𝗹𝗶𝗲𝗻𝘁-𝗙𝗶𝗿𝘀𝘁 𝗣𝗮𝗿𝘁𝗻𝗲𝗿𝘀𝗵𝗶𝗽 – We align with your vision and work as a seamless extension of your team. 𝗘𝗻𝗱-𝘁𝗼-𝗘𝗻𝗱 𝗦𝗼𝗹𝘂𝘁𝗶𝗼𝗻𝘀 – From concept and design to development, deployment, and support. 𝗖𝗹𝗲𝗮𝗿 𝗖𝗼𝗺𝗺𝘂𝗻𝗶𝗰𝗮𝘁𝗶𝗼𝗻 & 𝗧𝗿𝗮𝗻𝘀𝗽𝗮𝗿𝗲𝗻𝗰𝘆 – Regular updates and collaborative workflows. 𝗢𝗻-𝗧𝗶𝗺𝗲 𝗗𝗲𝗹𝗶𝘃𝗲𝗿𝘆 – Agile methodology focused on deadlines and quality assurance. 𝗦𝗰𝗮𝗹𝗮𝗯𝗹𝗲 & 𝗙𝘂𝘁𝘂𝗿𝗲-𝗥𝗲𝗮𝗱𝘆 𝗦𝗼𝗹𝘂𝘁𝗶𝗼𝗻𝘀 – Built with maintainability and growth in mind. 𝗧𝗲𝗰𝗵𝗻𝗼𝗹𝗼𝗴𝗶𝗲𝘀 𝗪𝗲 𝗠𝗮𝘀𝘁𝗲𝗿: PHP, Laravel, JavaScript, React, Node.js, MySQL, MongoDB, REST API, WordPress, Figma, Adobe Creative Suite, AWS, Docker. Whether you need a dynamic web application, a stunning mobile app, or a complete brand overhaul, DevOp360 is here to turn your ideas into reality. Contact us today to discuss your project. Let’s Build Something Great Together mniej
Zatrudnij ismailrehman0331
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ahmedhassan52 ahmedhassan52
$100 USD / godzinę
Top1% Full Stack Engineer | Cloud & CybersecurityEgyptLinux, Bezpieczeństwo serwisów WWW, Ochrona Internetowa, Bezpieczeństwo komputerowe, Amazon Web ServicesTop 1% Freelancer with 8+ years of experience as a Computer Scientist , Full-Stack Engineer and Cloud/Cybersecurity Architect. I deliver end-to-end solutions for high-stakes business problems, from concept to production-ready deployment for global clients. My expertise is not just in one domain : I architect and build...Top 1% Freelancer with 8+ years of experience as a Computer Scientist , Full-Stack Engineer and Cloud/Cybersecurity Architect. I deliver end-to-end solutions for high-stakes business problems, from concept to production-ready deployment for global clients. My expertise is not just in one domain : I architect and build the entire system , the secure infrastructure, the scalable backend, and the polished frontend , ensuring a resilient and high-performance result. Core Competencies & Verifiable Experience: ► Full Stack Product Delivery: I have a proven record of shipping complex applications from scratch. My portfolio includes 5+ live apps, demonstrating expertise in: Complex Business Systems: Architected and built the 70+ page front-end for erpflow.vercel.app (HR, Payroll, CRM). HIPAA-Compliant HealthTech: Built the full-stack healthsync-personalize multi-role management system. Cross-Platform Mobile: Delivered a complete Flutter IPTV app (iOS, Android, Web), handling the full lifecycle. ► Cloud & DevOps Architecture (AWS/GCP/Azure): I design and implement scalable and cost-efficient cloud infrastructure. Complex Cloud-Native Solutions: Architected secure, multi-cloud environments, including a sophisticated project integrating IoT devices (nRF9160) with AWS IoT Core for a New Zealand client. Infrastructure Mastery: Deep, hands-on expertise in Linux (Ubuntu, Red Hat), Virtualization (Virtualbox, VMWare, Proxmox), and Containerization (Docker, Kubernetes) to build efficient, high-performance systems. ► Cybersecurity & GRC Architecture: I build systems that are secure and compliant by design, leveraging a practitioner's understanding of both offense and defense. High-Stakes Incident Response: Successfully defended global clients by neutralizing live DDoS attacks (Australia) and architecting custom IDS/IPS rules (Snort/Suricata) to protect IoT fleets (Malta). Audit & Compliance Readiness: Guided enterprise clients through ISO 27001 & SOC 2 audit preparations. Tech Stack: Security: Wazuh, Elasticsearch Stack , Snort, Metasploit, Nessus , Nmap Cloud: AWS, GCP, Azure, Docker, Kubernetes, Terraform Dev: React, Node.js, TypeScript, Flutter, SQL/MySQL , PostgreSQL, Supabase Services Offered: End-to-End Secure Product Development (Web, Mobile, IoT). Cloud & Security Architecture (AWS, GCP, Azure). GRC & Compliance Automation (ISO 27001, SOC 2). Technical Due Diligence & Pre-Acquisition Audits. High-Stakes Problem Solving & Crisis Response. Let's connect and discuss how I can bring this comprehensive, battle-tested expertise to your most important project. mniej
Zatrudnij ahmedhassan52
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With years of experience in web development and server management, I bring a wealth of expertise to the table. Whether you're a budding entrepreneur, a small business owner, or an established enterprise, my skills and dedication are at your service.With years of experience in web development and server management, I bring a wealth of expertise to the table. Whether you're a budding entrepreneur, a small business owner, or an established enterprise, my skills and dedication are at your service. mniej
Zatrudnij sabdsouza
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lalitmydevit lalitmydevit
$30 USD / godzinę
Top 3% + Preferred + Verified + WP|Webflow|ShopifyIndiaGuaranteed 100% Satisfaction Over 300+ Clients with 5-Star Feedback Strong Client Recommendations Impressive Job Success Rate Free Support Included with Every Project Seasoned Web Developer | Specializing in Webflow, Vue.js, React | Proficient in PHP, WordPress, Shopify/HubSpot, CodeIgniter, Laravel, Adobe Experience...Guaranteed 100% Satisfaction Over 300+ Clients with 5-Star Feedback Strong Client Recommendations Impressive Job Success Rate Free Support Included with Every Project Seasoned Web Developer | Specializing in Webflow, Vue.js, React | Proficient in PHP, WordPress, Shopify/HubSpot, CodeIgniter, Laravel, Adobe Experience Manager Greetings, As a highly proficient web developer. My expertise spans across Webflow, Vue.js, React, PHP, WordPress, HubSpot, CodeIgniter, Laravel, and Adobe Experience Manager, enabling me to contribute significantly to your projects. I have an established track record of delivering outstanding outcomes and earning commendable recommendations from clients. With over a decade of experience, I excel at utilizing Webflow's capabilities to craft visually appealing and dynamic websites. Leveraging Vue.js and React, I create interactive interfaces that enhance user engagement. My PHP proficiency is robust, complemented by extensive experience in WordPress, HubSpot, CodeIgniter, Laravel, and Adobe Experience Manager. Whether it's refining WordPress themes, developing robust web apps with Laravel, or seamless HubSpot integrations, I tackle diverse projects adeptly. I prioritize high-quality work and client contentment. My effective communication, swift responses, and meticulous attention to detail set me apart. I'm adept at grasping client needs and translating them into effective web solutions. If you seek a skilled developer specializing in Webflow, Vue.js, React, PHP, WordPress, HubSpot, CodeIgniter, Laravel, and Adobe Experience Manager, I'm excited to delve into your project specifics. Please don't hesitate to reach out, and I'll gladly provide more information and discuss how I can contribute to your project's success. I eagerly await the opportunity to collaborate with you. Best regards, Lalit mniej
Zatrudnij lalitmydevit
