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⭐ 100% Job Success | 🌟 Rising Talent | 🚀 Linux & DevOps Engineer I help founders and developers deploy, fix, and scale their infrastructure. From broken Docker containers and Nginx issues to full VPS deployments with SSL and CI/CD — I focus on solving real infrastructure problems fast and cleanly. What I work with: • Docker & Docker Compose • Linux / Ubuntu servers • Nginx & reverse proxies • CI/CD pipelines • Cloud & VPS deployments • FastAPI & PostgreSQL • Kubernetes basics • Infrastructure troubleshooting I already have hands-on experience maintaining Linux infrastructure, deploying web services, configuring SSL, and troubleshooting production issues. If your app needs deployment, debugging, or a stable server setup — I can help.

⭐️ Top Rated Plus - Top 3% Expert on Upwork 🕒 9000+ Working Hours ✅ 20+ Years of Expertise ✅ 100% Job Success ✅ 300+ Successful Projects Finished ✅ 5 Star Rating Hello, I'm Oleksandr. As a seasoned Linux System Administrator and DevOps Engineer with over 20 years of experience I specialize in delivering robust IT solutions that enhance operational efficiency and security. My expertise spans across various domains, including: ▪ DevOps & Automation: Successfully implemented automated provisioning using Ansible, streamlining deployment processes and reducing manual intervention. ▪ Linux & FreeBSD Maintenance: Managed and optimized server environments on CentOS, Debian, Ubuntu, RHEL, and FreeBSD, ensuring high availability and performance. ▪ Cloud Hosting: Deployed and maintained scalable cloud solutions on AWS, Azure, and DigitalOcean, enhancing infrastructure reliability and scalability. ▪ Virtualization: Utilized Docker, VirtualBox, and OpenVZ to create flexible and efficient virtual environments, supporting diverse application needs. ▪ Web & Database Servers: Configured and maintained Apache, Nginx, MySQL, PostgreSQL, and MongoDB servers, ensuring secure and efficient data handling. ▪ Networking & Security: Implemented secure networking solutions, including VPNs and firewalls, to protect sensitive data and maintain network integrity. I am committed to continuous improvement and staying abreast of the latest industry trends. My approach is rooted in ITIL best practices, ensuring incident management and business continuity planning are at the forefront of my work. Let's collaborate to drive your IT projects to success with innovative solutions and expert guidance.

I'm a proficient Linux Server Administrator and PHP/Python programmer with over 15 years of experience. My expertise extends to web hosting, cloud, cluster, DevOps and blockchain technologies. Throughout my career, I have worked with numerous hosting providers and have gained extensive experience in addressing vulnerabilities, viruses, spam detection, server optimization, and server software optimization. As a DevOps professional, I collaborate with various companies with developer teams ranging from 1 to 50. I have extensive experience in automating infrastructure, implementing CI/CD pipelines, managing cloud environments (AWS, Azure, GCP), and ensuring system reliability and scalability. Below are my general skills: * Blockchain platforms: Bitcoin, Tron (TRX, USDT), Ethereum (ETH, USDT, USDC), XRP (full node & API) * DevOps: GitLab, GitHub, Azure DevOps. Project support, CI/CD * Optimization of Google Pagespeed, Magento, WordPress, ODOO, Mautic, Drupal, Joomla, Bitrix, Bitrix24, and other CMS * Operating Systems: Debian, Ubuntu, CentOS, Rocky Linux, AlmaLinux, RedHat, CloudLinux, Gentoo, FreeBSD (administration, configuration, audit, optimization) * Software Configuration Management: Salt, Ansible * Web servers: Nginx, Apache, LiteSpeed (installation, configuration, optimization) * Database servers: MySQL, PostgreSQL, MariaDB, Percona, MongoDB (installation, configuration, optimization, profiling, cluster creation) * Mail servers: Exim, Postfix, Sendmail, Zimbra, Qmail, Dovecot + Spamassassin, ClamAV * Webhosting Administration Panels: cPanel / WHM, Plesk, aaPanel, Proxmox, CyberPanel, VestaCP, HestiaCP, ISPManager, Billmanager, ISPConfig, DirectAdmin, Webmin * Monitoring: Zabbix, Wazuh, Munin, Nagios, Icinga * Amazon: AWS setup or Amazon tools * Virtualization: Proxmox, OpenVZ, XEN, KVM, VMWare, VirtualBox, Docker * Load balancing via: HAproxy, Nginx, Pingora, ProxySQL, PowerDNS, BIND, Route53, Alibaba Cloud DNS * System Backup and Restore automation * Removal of viruses and malicious software * Network services: DNS (Bind, PowerDNS), VPN (MPD, PPTPD, OpenVPN), firewalls (iptables, ipfw), file server (samba3/4), proxies (Squid, 3proxy, Privoxy, Nginx), DRBD, Ceph, GlusterFS, lsyncd * FTP: Vsftp, Pureftp, Proftpd Thank you for viewing!

I'm a QA tester and self-taught developers with 130+ hours on Upwork, and a 5.0 rating. and I'm honestly obsessed with finding the broken thing before users do. I came into tech from a science background (BSc, Biology). Sounds like a detour, until you realize what lab work actually trains: methodical testing, documenting exactly what happened, and never trusting a result until it's reproducible. That is QA. What I bring to a contract: 1. Manual & exploratory QA. I hunt edge cases, write clear reproducible bug reports, and verify fixes properly. 2. Python scripting & automation (IBM certified) - small tools, data tasks, test scripts. 3. Comfortable in the terminal - Linux commands, shell scripting, Git & GitHub version control. 4. Multilingual QA / localization testing - native Hebrew & Russian, fluent English, so I can test and verify across languages most testers can't touch. 5. I'm also actively learning - building a Kotlin app from scratch and working through hands-on security labs on TryHackMe (Linux, networking, security fundamentals). Clients have tagged me reliable, detail Oriented, collaborative, and a clear communicator and I'd rather over-communicate and get it right than go quiet and hope. If you want someone sharp on details and hungry to grow with your project, message me.

I build self-healing infrastructure and pipelines that save you 10+ hours a week. You are looking for a reliable DevOps engineer to automate your deployments, secure your AWS infrastructure, or fix a broken pipeline. You don’t just want code — you want a system that lets your developers sleep at night. With 4+ years of experience, I help SaaS founders and CTOs move from manual chaos to automated excellence. Here is how I can help you immediately: Automate Deployments Building reliable CI/CD pipelines using Jenkins, GitHub Actions, and GitLab so you can release in minutes instead of hours. Cloud Optimization Designing secure AWS environments (EC2, RDS, S3) and reducing your monthly cloud spend. Containerization Dockerizing applications and managing Kubernetes clusters for high availability and zero-downtime deployments. Infrastructure as Code Using Terraform and Ansible so your infrastructure is reproducible, scalable, and stable. Why clients trust me: I don’t just run commands — I document everything so your team can maintain it later. I prioritize security and cost efficiency in every setup. I’m available for both urgent troubleshooting and long-term infrastructure ownership. Let’s hop on a call to review your current setup and find quick wins. Purushotam S. DevOps & Cloud Automation Expert

Senior audio software developer, passionate about audio, technology, and music. CEO & Co-Foudner of Edge Audio Labs, a company specialized in audio and music software development. My team and I build audio products end to end, including audio plugins, desktop and mobile apps, DSP, AI for audio, cloud backends, embedded systems, licensing, QA, UI/UX, and launch-ready product support. My expertise includes C++, JUCE, Python, PyTorch, ONNX, FastAPI, AWS, Vercel, VST3, AU, AAX, iLok, Audinate Dante, AoIP, and cross-platform development for macOS, Windows, iOS, Android, and embedded environments. We’ve worked on analog emulation, AI vocal synthesis, voice and singing technology, cloud-based audio systems, MIDI and music analysis tools, AI audio analysis, embedded audio hardware, and distributed real-time audio platforms. I also bring real-world experience in live sound, theatre, and studio work, plus a musician’s perspective as a drummer and guitarist. This helps me understand both the technical and creative side of audio products. Former college professor in the Audio Technology Department at ORT University, with strong experience leading teams and turning complex ideas into polished products.