Software Engineer – Java (RegTech / FinTech)
FQS Poland / Fujitsu•Kraków•Hybrydowa
📝 Opis główny / Wstęp
Job Description
You will join an international engineering team delivering high-performance solutions for clients in the RegTech / FinTech sector. The role focuses on building scalable systems for processing large volumes of financial and regulatory data, including work with formal data specifications such as XBRL. You will contribute to the full software development lifecycle, collaborating closely with both internal teams and client-side engineers.
Key Responsibilities
Design and implement backend solutions in Java
Analyze, optimize, and improve code performance and scalability
Review and validate code (own and peers’)
Analyze and interpret formal data specifications (e.g., XBRL OIM, Table Constraints)
Translate business and technical requirements into software solutions
Participate in backlog refinement and development planning
Create and maintain technical documentation
Collaborate with client engineering teams during product implementation
Requirements
Minimum 4 years of commercial experience in Java development
Experience designing and building applications across different architectures
Strong knowledge of Java frameworks, libraries, and development tools
Experience processing large datasets
Practical experience with Git
Knowledge of XML, XSD, and regular expressions
Good working proficiency in English (daily communication, documentation, client interaction)
Experience with JIRA and Confluence (or similar tools)
Strong analytical and problem-solving skills
Ability to work independently and adapt to changing priorities
Strong communication and teamwork skills
Nice to Have
Knowledge of Gradle
Experience porting solutions from Java to .NET
Familiarity with XBRL technologies
Experience with scripting languages
Experience building web applications and microservices
Experience working with databases
Interest in algorithms and performance optimization
About the Company
FQS Poland Sp. z o.o. is fully owned by Fujitsu Limited, a leading global ICT company with approximately 155,000 employees supporting customers in over 100 countries.
FQS Poland was established as a European R&D center focused on software development. Our mission is to deliver high-quality products and services, leveraging Fujitsu’s global portfolio while enabling technology transfer between Europe and Japan.
The Kraków office operates as a Center of Excellence, contributing to advanced technology solutions in a global environment.