Viktar Dubiniuk
Backend Engineer · Go · PHP · Linux Systems · Warsaw
15+ YOE in Backend & Linux Infrastructure. Deep PHP background, deliberately pivoting to production Go.
The core
I am a developer who speaks fluent Linux. After a decade of full-stack engineering and years owning Linux infrastructure and CI/CD, I’ve returned to my core passion: writing efficient, clean, and performant code in Go.
After years in PHP, Python, and ops, I chose Go deliberately. These projects are how I learned the language — by shipping things I actually run.
My edge is the synergy between the OS and the app. I don’t just write code — I understand how it interacts with the system, how it behaves in a container, and how it scales in production.
I am looking for a backend role focused on building resilient Go services and maintaining production systems — infrastructure is an enabler, not the job title.
Technical stack
- Languages
- Go (primary), Python, Bash, PHP
- Systems
- Linux (openSUSE since 2007), systemd, cgroups, Netlink
- Runtime
- Docker (build, Compose), static Go binaries
- Infrastructure
- AWS (ECS, Lambda, RDS, SQS), CI/CD (GitHub Actions), Nginx/Traefik
- Data
- PostgreSQL, MySQL, Redis
Experience highlights
- Open Source: ownCloud core team member (2012–2021)
- Portfolio: HTTP middleware, Linux daemons, sandboxed workers
- Production Go: billing/credits, Stripe idempotency, AWS (ECS, RDS, SQS)
- Systems: 18 years of deep troubleshooting — “it’s broken, fix it”
- Philosophy: optimize a Go struct or a Linux config before buying more hardware
Languages & logistics
- Languages
- English (C1 overall), Polish (B1), Belarusian (native), Russian (native), Ukrainian (fluent)
- Location
- Warsaw — no relocation
- Legal
- Residence permit until mid-2027. Work permit required for direct employment (oświadczenie).
- Availability
- B2B (via payroll company) or UoP/UZ
Personal
Father of three. Kyokushin Karate 3rd Kyu (green belt). Half-marathon finisher.