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Krzysztof Jerzyk

@krzysztofjerzyk

Frontend & Mobile Developer at Oskar Wegner building BASF platform frontends from scratch and upgrading a production Angular app from v17 to v22.

Poland
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At Oskar Wegner, I built the frontend for BASF’s Ukrainian agricultural loyalty platform from scratch, including its architecture, UI, REST API integration, and CI/CD pipeline. I also develop and maintain BASF’s Polish platform, which I upgraded from Angular v17 to v22 without disrupting production.

I’m building a React Native promotion calculator for BASF’s loyalty programs, published on the App Store and Google Play. I also created TicketPilot, an AI agent that takes tickets from analysis through implementation and review to QA handover.

At WSB Merito University, I developed React and TypeScript applications for a production system serving students and academic staff across the university network. I worked on modules including Study Programs, Internships, Lecturer Settlements, and General Requirements, and maintained the Student Service module.

I also developed Laravel microservices and REST APIs at WSB Merito University, including authorization and permissions using JWT and RBAC. My master’s thesis project benchmarked SQL and NoSQL database performance in a NestJS application.

Experience

Work history, roles, and key accomplishments

OO
Current

Frontend & Mobile Developer

Oskar Wegner Sp. z o.o.

Apr 2026 - Present (7 months)

Sole frontend developer for two production Angular web apps for BASF Agricultural Solutions, including building the Ukrainian platform's frontend from scratch and maintaining the Polish platform. Upgraded the Polish platform from Angular v17 to v22 and introduced automated tests and CI/CD.

WU

Fullstack Developer

WSB Merito University

Jul 2025 - Jun 2026 (11 months)

Developed and maintained microservices in PHP (Laravel) for university processes, designed REST APIs compliant with OpenAPI/Swagger, and implemented authorization and permission management systems.

Education

Degrees, certifications, and relevant coursework

WU

WSB Merito University

MSc Eng., Computer Science

2023 - 2025

MSc Eng. in Computer Science with specialization in Advanced Database Systems, completed in 2025.

Poznan University of Technology logoPT

Poznan University of Technology

BSc Eng., Telecommunications Engineering

2019 - 2023

BSc Eng. in Telecommunications Engineering, completed in 2023.

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