beastak.dev

Jakub Bistak

.NET Backend Engineer focused on robust APIs, automation & clean architecture.

Let’s talkSee workDownload CV

APIs you can trust

Clean endpoints, versioning, auth and rate-limits.

Background jobs that behave

Queues, retries and observability without surprises.

Code that’s easy to keep

Tests where it counts, docs, and tidy handovers.

Services

Pick what fits your roadmap. I can jump in solo or integrate with your team.

Backend APIs & Integrations

Design and implementation of resilient .NET APIs with auth, rate-limits and telemetry.

RESTAuthRate-limitsObservability

Automation & Internal Tools

Background jobs, data pipelines, CLI tools and document processing.

QueuesRetriesWorkersPipelines

Architecture & Refactoring

Clean Architecture, boundaries, testability, performance and reliability improvements.

Modular monolithTestingPerf

Frontend & Presentation Sites

Landing pages, dashboards and admin UIs. Clean UX with Tailwind.

React/VueTailwindFormsDashboards

DevOps & CI/CD

Dockerizing apps, pipelines and releases. Solid deploys and quick rollbacks.

DockerGitHub ActionsReleasesMonitoring

Workstations & Dev Rigs

Advice and builds for silent, reliable developer PCs with the right perf/€ mix.

PartsAssemblySetup
Not sure where to start? Let’s discuss your scope.

Tech Stack

A quick, visual overview across backend, data, DevOps and frontend.

Interactive tech stackBackendDataDevOpsFrontendData
SQL ServerPostgreSQLRedisRabbitMQMigrations

Selected Projects

A mix of open-source, private work and experiments.

TestForge

Fluent API generator for realistic test data in .NET, built over Bogus.

C#BogusTesting
Public repo

ChronoTag

RFID-based desktop timing system for sports events with manual override.

PythonPyQt5RFID
Public repo

Maat

User activity monitoring tool for desktop, both locally and remotely.

C#.NETMonitoring
Case study on request

MatchOracle

Football match prediction system using statistical comparison and scoring logic.

C#xGData Science
Case study on request

Obscura

Secure password manager built with MAUI, local storage and clean architecture.

.NETMAUIEncryption
Public repo

ButtonGenerator

Command-line tool for generating styled button PNGs for UI prototypes.

C#CLIImageGen
Public repo

WhiteHell

Web platform for finding trip buddies for skiing, snowboarding or hiking.

C#ASP.NETFrontend
Public repo

My Career

Privatbanka, a.s.
2024 – Present

SOFTWARE ENGINEER

Privatbanka, a.s.

dm drogerie markt, s.r.o.
2024 – 2024

BACKEND DEVELOPER

dm drogerie markt, s.r.o.

MS Power Platform
Bekaert Hlohovec, a.s.
2022 – 2024

BACKEND DEVELOPER

Bekaert Hlohovec, a.s.

KomTeS SK s.r.o. / W.A.G. payment solutions SK
2019 – 2022

IT/TECHNICAL SUPPORT SPECIALIST

KomTeS SK s.r.o. / W.A.G. payment solutions SK

GPS Units troubleshootingCustomer SupportJIRA

Let's build something

Tell me about your project. I usually reply within 24 hours.