PROGRAMIKS SEBASTIAN KRYSIAK

Sebastian Krysiak

Full-stack engineer delivering efficient backend systems and seamless user interfaces.

Core Stack

Backend

PHP Symfony Node.js Python REST GraphQL

Frontend

React Next.js React Native Tailwind Redux Zustand

DevOps

Docker Linux CI/CD Nginx Apache Ansible

Messaging

RabbitMQ WebSockets Mercure gRPC

Data

PostgreSQL MySQL SQLite Elasticsearch

Testing

Jest PHPUnit Playwright

Full-Stack Delivery

Design to deploy across web and mobile with measurable performance.

APIs & Integrations

Scalable REST/GraphQL, async workers, RabbitMQ pipelines, real-time streams.

DevOps Enablement

Dockerized stacks, CI/CD, observability, zero-downtime rollouts.

Quickest way to reach me.

sebsastianek@gmail.com GitHub