Hire the Best Unix Shell Developers

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Mike M.

Vinnytsya, Ukraine

$15/hr
5.0
5 jobs

⭐ 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.

  • DevOps
  • Docker
  • Kubernetes
  • Linux System Administration
  • NGINX
  • CI/CD
  • Docker Compose
  • Ubuntu
  • System Administration
  • Cloud Computing
  • Google Cloud Platform
  • FastAPI
  • Network Administration
  • Automation
  • IT Infrastructure
Purushotam S.

Surat, India

$15/hr
5.0
7 jobs

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

  • Unix Shell
  • Jenkins
  • Terraform
  • Docker
  • Linux
  • DevOps
  • AWS Elemental MediaTailor
  • GitHub
  • AWS Elemental
Joaquin S.

Montevideo, Uruguay

$60/hr
5.0
39 jobs

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.

  • Unix Shell
  • Logic Pro
  • Avid Pro Tools
  • Audio Mastering
  • Python
  • Product Development
  • Audio Engineering
  • Audio & Music Software
  • MIDI
  • Music & Sound Design
  • Digital Signal Processing
  • C++
  • Audio Editing
  • C
  • Audio Post Production
Oleksandr D.

Nikopol, Ukraine

$60/hr
4.9
355 jobs

⭐️ 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.

  • Ubuntu
  • DNS
  • Web Hosting
  • SSL
  • WordPress
  • Network Administration
  • Docker
  • Docker Compose
  • Git
  • Linux
  • CI/CD
  • Google Cloud Platform
  • Terraform
  • Continuous Deployment
  • Continuous Delivery
  • Continuous Integration
  • DevOps
  • DevOps Engineering
  • Amazon Web Services
  • System Administration
Suma W.

Beijing, China

$25/hr
5.0
94 jobs

I am an experienced Linux administrator. I have 15+ years of experience in Linux system administration and problem-solving. I can troubleshooting all kinds of linux issues, centos migration, centos/ubuntu crash rescue, investigate server performance issue and web server administration. Skills & Deliverables: Cloud Infrastructure & Dedicated VPS Setup (AWS, DigitalOcean, Hetzner, Contabo, Linode etc) Building secure, high-performance servers with proper backup, and automation. Linux Administration(Centos, Ubuntu, Debian, Rocky Linux, Almalinux) Performance optimization, monitoring, troubleshooting, log analysis, and uptime management. Server migration(Centos, Ubuntu, Debian, Rocky Linux, Almalinux) Secure migration of data and app between different servers. Web Server Trouble-shooting Slow server, website troubleshooting and optimization Recurring downtime issue troubleshooting and fix. Centos7 server migration Upgrade centos7 to almalinux 8 or 9. Migrate data&apps from centos7 to Ubuntu/Debian/Rocky/Almalinux Server Upgrade(Centos, Ubuntu, Debian, Rocky Linux, Almalinux) Upgrade ubuntu 14 16 18 20 22 to the latest version. Upgrade Debian , Rocky Linux, Almalinux to the latest version Server rescue(Centos, Ubuntu, Debian, Rocky Linux, Almalinux) Fix linux system crash, file system corruption. Security & Compliance Firewall configuration, access control, TLS/SSL, patching, vulnerability prevention. Backup & Disaster Recovery Strategy Automated backups, retention policies, restore testing, failover planning. Application Hosting & Migration WordPress, Prestashop, Forum app, Node.js, Python apps — smooth migration without downtime. Email Infrastructure & Deliverability Improvement Domain authentication setup (SPF / DKIM / DMARC), inbox placement, fixing spam issues. Why choose me? - Strong skills and extensive experience , can work independently and efficiently , able to fix complex issues - Fast and clear communication, detail and solution oriented - Honest and proactive work ethic

  • CentOS
  • Ubuntu
  • WordPress
  • Apache HTTP Server
  • NGINX
  • Debian
  • Docker
  • MySQL
  • Web Hosting
  • Website Migration
  • PrestaShop
  • Linux System Administration
  • Varnish Cache
  • Postfix SMTP Server
  • Dovecot
Denis V.

Herceg Novi, Montenegro

$35/hr
4.9
702 jobs

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!

  • MySQL
  • PHP
  • NGINX
  • DevOps
  • Ubuntu
  • System Administration
  • Database Administration
  • CentOS
  • Debian
  • cPanel
  • Plesk
  • Apache Administration
  • Blockchain
  • Web Hosting
  • Linux System Administration

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