Part of a cross-functional team developing and maintaining a Symfony-based e-commerce platform serving over 300,000 monthly users across both B2C and B2B channels.

This core platform integrates with 40+ third-party systems, ranging from logistics providers to payment gateways, using a mix of REST and legacy SOAP APIs. It acts as the central hub connecting multiple internal tools and satellite services.

My contributions included:

• Building and maintaining new features in Symfony
• Debugging and improving performance of API integrations
• Collaborating with QA and ops on release rollouts
• Monitoring and tuning AWS EC2 instances, and assisting with asset hosting via S3 and CloudFront
• Helping ensure stability and maintainability in a high-traffic, integration-heavy environment.

A multichannel booking system for the always busy lake-side business.

Joanna is a solicitor based in a charming city of Białystok, located in north-eastern Poland. She specialises in corporate law, helping companies thrive, saving it's time and resources by taking care of the legal side of running a business.

Joanna approached me, wanting to create a website for her law firm. The site had to be modern, yet trustworthy, mostly informational and, of course, it should convince people to contact the firm.

Pohulanka is a tiny village in the far side of Podlaskie voivodeship, north-eastern Poland. Owner of one of the household there approached me with an idea to create a website for his newly started business.