Jedrzej Sikora
Delivering reliable, scalable Java solutions with Spring Boot and modern backend tech.
Warsaw, PL
Full time/Part time/Project based
Remote
Java Developer with 3 years of experience delivering backend solutions from small apps to large-scale enterprise systems. Skilled in Java, Spring Boot,...
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My Career Journey
1/3
Atos
Java Developer
Apr 2026 - Present | 5m
Warsaw, PL
Contributing to a large-scale BAFA project based on microservices architecture. Developing and maintaining Java/Spring Boot microservices. Working with international teams to deliver enterprise solutions...
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UPS
Junior Java Developer
Jan 2023 - Apr 2026 | 3y 3m
Warsaw, PL
Implemented backend functionalities and business logic using Java and Spring technologies. Developed an internal Java/Spring Boot reporting tool, validated records, calculated sales KPIs, and generated...
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MCS-PARTS
Java Developer
Mar 2022 - Jan 2024 | 1y 10m
Warsaw, PL
Developed and maintained backend functionalities for a custom Java/Spring Boot online store for motorcycle parts. Implemented product management features, REST API endpoints, and database integration,...
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Collaboration
Teamwork
Complex Problem Solving
Analytical Thinking
Systems Thinking
Delivery Focused
Results Focused
Communications
Most proud of (2/3)
1st
Facilitated consensus on microservices design, balancing delivery speed and code quality to avoid technical debt.
2nd
Tracked and resolved cross-service integration bugs by analyzing logs, tracing requests, and coordinating fixes with teams.
Career Highlights
1/2
Backend engineer coordinating logs, APIs, and cross-team fixes
Resolved cross-service integration failures in BAFA microservices
Warsaw,
In the BAFA microservices project I coordinated with teammates to identify and resolve integration...
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Backend engineer on international BAFA microservices team
Balanced delivery speed and code quality to avoid technical debt
Warsaw,
During the BAFA microservices project I mediated differing implementation opinions across an...
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My values
Problem Solving
Teamwork
Education
WSB University Wroclaw
MSc in Computer Science
Ongoing
Wroclaw University of Technology
Bachelor of Mechatronics
Ongoing
Certifications & Qualifications
Oracle Associate Java SE 5/6
Oracle2026
ISC2 CSSLP - Training DSD II
ISC22026
DSD II
2026
Language(s) I speak
English
Fluent
German
Fluent
Polish
Fluent