- 2016Bare-metal sysadmin2016 · Bare-metal sysadmin1,500+ users across industrial sites: Active Directory, MS SQL, endpoint security, automated provisioning.
- 2020Systems engineer2020 · Systems engineerBuilt a clinical-research CRM from scratch; KVM virtualization and Zabbix monitoring for 100+ users.
- 2022FinTech team lead2022 · FinTech team leadLed a 4-person IT team; ran a Proxmox / Docker / Jenkins stack steady through trading hours.
- 2023DevOps engineer2023 · DevOps engineerCI/CD across Jenkins, GitLab & GitHub Actions, Terraform IaC, ~50 AWS Lambdas, multi-cloud.
- 2025Platform engineer2025 · Platform engineer500+ VMs, self-service platforms, a 63K-line Rust core, and AI in the engineering loop.
- 2026 →Ongoing · OngoingThe DevOps loop never stops. Right now: platform engineering, a Rust systems core, and AI in the loop, plus whatever the next hard problem turns out to be.always shipping
Oleksii Koshelenko
10 years from racking servers to shipping platforms. I solve the problem first, then pick the tool.
LET ME INTRODUCE MYSELF
Senior Platform Engineer focused on governance, resilience, and solving problems that actually matter. I take ownership, build automated systems, and deliver business outcomes, not just infrastructure.
Specializing in enterprise-scale migrations, hybrid cloud governance, and observability platforms. From replacing legacy monitoring for 500+ VMs to building universal CI/CD pipelines: I architect solutions for mission-critical environments.
Multi-cloud expertise (Azure, GCP, AWS) with hands-on experience in FinTech compliance, AdTech platforms, and revenue-critical systems serving hundreds of users globally with zero-downtime requirements.
10+ years of transformation: from system administrator to platform engineer trusted with enterprise governance, observability platforms, and large-scale cloud modernization across regulated industries.
Watch My Video CV
The Value Multiplier Mindset: how I turn complex challenges into business outcomes
