About
Senior backend engineer with a practical, production-first mindset
I prefer work where system behavior matters in production, where integrations are non-trivial, and where engineering quality shows up in delivery confidence as much as in code structure.
Arek Poczobut is a backend-focused software engineer with strong Ruby on Rails experience and a consistent bias toward systems that need to stay understandable under load, during releases, and when something goes wrong in production.
The most relevant work has involved transaction-heavy services, partner integrations, identity-aware application flows, and backend delivery across cloud environments where application changes and infrastructure decisions are closely linked.
I am most useful in teams that need someone to move between implementation detail and operational reality without losing clarity. That means design, debugging, instrumentation, delivery safety, supportability, and collaboration with product, QA, and operations.

Highlights
Career highlights
A quick scan of the strengths and experience threads that matter most for this portfolio.
Focus
The kind of problems I like solving
I am less interested in breadth for its own sake and more interested in systems where backend decisions directly affect trust, supportability, and team speed.
Complex workflows
APIs, background jobs, partner dependencies, and business logic that has to hold up under change.
Operational clarity
Logs, environments, deployment safety, and release confidence designed into the work from the start.
Security-aware delivery
Identity integrations, permissions, config handling, and the practical edge cases around authentication.
Journey
A concise career timeline
This is not intended as a full employment history. It highlights the arc that matters for this portfolio: backend depth, delivery ownership, and production maturity.
Recent years
Senior backend and delivery-focused engineering
Led work across backend systems, service integrations, and production-quality delivery with consistent ownership from implementation through support.
ENOClink MobileFuel
Large-scale product and operational depth
Worked across backend development, support workflows, and DevOps-aware delivery in a UAE mobile fuel delivery platform serving business fleets and community fueling contexts.
Identity and secure integrations
Keycloak and auth-aware delivery
Handled authentication flows, roles, config, and troubleshooting in systems where security had to work cleanly across environments.