Hire the Best OpenShift Specialists in Kharkiv, UA

I help teams deploy, fix, and stabilize Linux-based infrastructure and cloud environments. I work with GCP, Docker, and Ansible to automate deployments, resolve system issues, and make environments reliable and easier to operate. What I can help with: • Fixing broken deployments and unstable systems • Setting up Docker / Docker Compose environments • Automating infrastructure with Ansible • Configuring GCP infrastructure (VMs, networking, storage) • VPN setup, firewall (iptables), and secure networking • Monitoring setup (Prometheus, Grafana) Experience highlights: • Reduced infrastructure setup time from hours to seconds using automation • Supported distributed systems with up to 200 machines (Jetson-based clients) • Built VPN-based infrastructure connecting remote devices to cloud environments • Helped teams integrate applications into stable Docker-based systems I focus on practical results — making systems stable, predictable, and easy to manage.

Your server's down at 3am. Your cloud bill doubled. Deploys are a Friday nightmare. I fix exactly this — fast, with a rollback plan for every change. Results from 49 completed projects (100% Job Success): - 99.9% uptime — real monitoring with Prometheus, Grafana, and structured alerting - 30-60% faster page loads — Nginx/Apache tuning, CDN, TLS hardening, HTTP/2 - 20-35% lower cloud costs — right-sizing, autoscaling, lifecycle policies, FinOps - Deploys in minutes — Docker, Kubernetes, GitOps (ArgoCD/Flux), GitHub Actions, GitLab CI What I do: - Infrastructure & Containers: Linux, Docker, Kubernetes, Helm, Terraform, Ansible - Cloud: AWS, GCP, Azure - CI/CD: GitHub Actions, GitLab CI, ArgoCD, blue-green/canary deploys - Monitoring: Prometheus, Grafana, OpenTelemetry, ELK/OpenSearch - Security: Vault, SBOM/SLSA, Zero Trust, WireGuard/OpenVPN - Scripting: Bash, Python, Go, PowerShell How I start: 1. Quick audit (30-60 min) — what's running, what's breaking, what costs money for no reason 2. Prioritized action plan — what to fix now, what can wait, rollback strategy for every change 3. Early wins in 48 hours — faster response, fewer alerts, lower bill, working backups I don't do "two weeks of discovery." I dig in, find the worst problems, fix them fast. Tell me what's hurting — I'll be straight about whether I can help and what it takes.

Creating fault-tolerant systems based on EC2 and Docker using the latest and effective Development Optimization and CI/CD technologies. Building scalable solutions on AWS, GCP, and Azure. Engineering and installing custom solutions for different web and cloud services. Network engineering, configuration, and support. Remote administration. Backup solutions implementation. Investigation and security adjustment. AWS Certified Solutions Architect – Associate • Gitlab CI, Github CI, Jenkins • Docker, Kubernetes, OpenShift, Helm • Terraform, CloudFormation, Ansible • Experience with LAMP/LEMP stack • Bash, Python, Groovy • Prometheus, Grafana, Zabbix Strong analytical skills & ability to troubleshoot complex issues. Collaboration and Communication: Cross-functional teams, developers, and stakeholders. Feel free to reach out anytime - we'll solve your IT puzzles together!

Architecture of small and large applications and their delivery pipelines in the cloud and in onpremise environments is my bread and butter. This includes understanding business needs, providing best available options from different cloud providers, setting up CI/CD pipelines, organizing work of other people on that topic. Being a fan of Devops philosophy I also have broad experience in: * Kubernetes and container ecosystem (CKA certified); * virtualization systems (KVM, Xen) and cloud systems (OpenStack); * Python/Go; * ecosystem of CI/CD toolset (Jenkins, Concourse CI); * configuration management systems (Ansible, Terraform);

Every hour of downtime costs your enterprise an average of $540,000. That's not a DevOps metric - that's a board-level problem. I design and operate infrastructure that stays up. My specialty is the full observability and reliability stack: detecting failures before users do, recovering in minutes, not hours, and building the self-healing systems that let your engineering team sleep at night. With $400K+ earned on Upwork, 100% Job Success Score, and 10+ years in DevOps and Site Reliability Engineering, I bring the broadest monitoring stack you'll find in one engineer: Prometheus · Grafana · Datadog · ELK Stack · Zabbix · Sumo Logic - combined with deep Kubernetes and cloud expertise. Typical Problems I Solve → Production incidents are frequent, and MTTR is too high → No observability - issues discovered by users, not monitoring → Need DevOps engineer for high availability infrastructure setup → Kubernetes clusters experiencing performance or reliability issues → Disaster recovery plan missing or untested → AI workloads need reliable, observable infrastructure Proven Client Results ▪️ iLost Platform (Netherlands) → Challenge: EKS performance degrading, CI/CD unstable across Dev/Staging/Production, and OpenSearch causing timeouts. → Solution: EKS rightsizing, CI/CD pipeline optimization, IAM hardening, OpenSearch performance tuning. → Business Impact: Reduced bottlenecks, improved release predictability, and optimized infrastructure costs. ▪️ Qopla Infrastructure → Challenge: Long-term SRE engagement - ongoing reliability, monitoring, and performance needs. → Solution: Continuous SRE operations, incident management, and infrastructure optimization. → Business Impact: 657-hour engagement demonstrating sustained impact. Rate progressed $40/hr → $52/hr based on results. ▪️ GetChecked (Blockchain / Multi-cloud) → Challenge: Multi-cloud infrastructure (AWS + DigitalOcean + bare-metal) with Hyperledger Fabric in a regulated environment. → Solution: Upgraded Hyperledger Fabric, implemented monitoring, backup, DR/BCP, optimized CI/CD pipelines. → Business Impact: Increased system reliability and security in a strict regulatory context. Core SRE Capabilities → DORA metrics: Deployment Frequency, Lead Time, MTTR, Change Failure Rate - measured and improved → Incident Management & On-Call: Runbooks, escalation paths, post-mortems → Disaster Recovery & Business Continuity planning and testing → Zero Trust Security: IAM, RBAC, SELinux, network hardening → High Availability: Multi-AZ, failover, load balancing, autoscaling → AI workload reliability: observability for ML pipelines and LLM infrastructure Stack: AWS · GCP · Kubernetes · Terraform · Ansible · Prometheus · Grafana · ELK Stack · Datadog · Zabbix · Docker · Linux · GitHub Actions · GitLab CI · Incident Response Plan · Disaster Recovery Available during US business hours (EST/PST overlap). Downtime is a solved problem - if you have the right observability. Send an invite and let's audit your reliability posture.

𝗗𝗲𝘃𝗢𝗽𝘀 𝗘𝘅𝗽𝗲𝗿𝘁 𝘁𝗼 𝗦𝘁𝗿𝗲𝗮𝗺𝗹𝗶𝗻𝗲 𝗜𝗻𝗳𝗿𝗮𝘀𝘁𝗿𝘂𝗰𝘁𝘂𝗿𝗲 I’m Serhii, a DevOps Engineer with hands-on experience in cloud computing, automation, and Linux systems administration. I specialize in building and maintaining efficient, scalable, and secure infrastructure that’s tailored to your project needs. 🔧 𝗧𝗲𝗰𝗵𝗻𝗼𝗹𝗼𝗴𝘆 𝗦𝘁𝗮𝗰𝗸 ☁️ Cloud Platforms: AWS (VPC, EC2, S3, IAM, ELB) 📦 Containers & Orchestration: Docker, Kubernetes, EKS 🚀 CI/CD: Jenkins, GitLab CI/CD, AWS CodeDeploy, AWS CodeBuild 🛠 Infrastructure as Code (IaC): Terraform, Ansible 🖥 Web Servers & Databases: LAMP/LEMP stacks, Nginx, MySQL, PostgreSQL, MongoDB 🔍 Monitoring & Logging: ELK Stack (Elasticsearch, Logstash, Kibana), Prometheus, Grafana, Zabbix, Nagios, Cloudwatch, Cloudtrail 🔐 Security & Compliance: VPN, ZeroTrust (Twingate) 💻 Scripting: Bash, Python 💼 𝗦𝗼𝗺𝗲 𝗼𝗳 𝗠𝘆 𝗥𝗲𝗰𝗲𝗻𝘁 𝗣𝗿𝗼𝗷𝗲𝗰𝘁𝘀 𝗔𝘂𝘁𝗼𝗗𝗦 – Automated CI/CD pipelines and managed the entire infrastructure using AWS, Jenkins, and Docker, optimizing performance and reducing deployment time. 𝗧𝗲𝗹𝗲𝗠𝗗 – Configured secure infrastructure for a telemedicine platform, leveraging EKS and MongoDB for efficient scalability and performance. 𝗦𝘁𝗮𝗶𝗿𝗰𝗮𝘀𝗲 – Implemented GitHub Actions for seamless CI/CD processes, alongside Kubernetes management and secure access using Twingate. 𝗧𝗲𝗮𝗺𝘇𝗼𝗻𝗲 – Supported the development team by maintaining a stable environment, troubleshooting issues, and ensuring optimal database performance. 𝗜𝗻𝘃𝗶𝗴𝗼𝗿 𝗠𝗲𝗱𝗶𝗰𝗮𝗹 – Built and managed infrastructure for a medical platform similar to TelegraMD, using AWS Lambda and RDS to ensure scalability and high availability. 𝗞𝗶𝘇𝗲𝗻 – Automated workflows and data collection through scripting. Implemented customized monitoring solutions and managed the CI/CD pipelines to ensure smooth deployment and operations. 🔧 𝗪𝗵𝗮𝘁 𝗜 𝗕𝗿𝗶𝗻𝗴 𝘁𝗼 𝘁𝗵𝗲 𝗧𝗮𝗯𝗹𝗲 I love solving complex problems and optimizing infrastructure for better performance, security, and cost efficiency. From setting up containers and automation to monitoring and managing cloud platforms, I’ve got the skills and experience to tackle your DevOps challenge and help you get results really quickly