Senior Software Engineer

At Mindbox we connect top IT talents with technology projects for leading enterprises across Europe.

Join our client’s team as a Senior Software Engineer!

We are looking for an experienced Senior Backend Engineer who will design and develop robust, high-availability systems in a dynamic and highly regulated environment. This role involves creating scalable and secure backend solutions for FX Cash operations, leveraging cutting-edge technologies.

Sounds like your kind of challenge?

#LI- Hybrid – 8 days a month from the office in Kraków

What you'll be doing

Design and implement high-performance, high-availability backend systems.
Develop microservices and RESTful APIs using modern Java with HTTPS, messaging (MQ), and distributed architecture principles.
Collaborate with cross-functional teams, ensuring scalability, maintainability, and adherence to cyber security standards.
Work within a modern software engineering methodology framework including CI/CD pipelines.
Provide technical input to system architecture ensuring optimal performance and reliability.

Note: Detailed project information will be shared during the recruitment process.

What you get in return

Flexible cooperation model – choose the form that suits you best
(B2B, employment contract, etc.)
Hybrid work setup – 8 days a month from the office in Kraków
Collaborative team culture – work alongside experienced professionals eager to share knowledge
Continuous development – access to training platforms and growth opportunities
Comprehensive benefits – including Interpolska Health Care, Multisport card, Warta Insurance, and more
High quality equipment – laptop and essential software provided

Who we're looking for

10+ years in software engineering with strong backend development experience in Java.
Proven ability to design technical architecture/solutions for large-scale backend systems.
Deep expertise in handling high-volume data processing and distributed computing environments.
Hands-on experience with:
- Go, Rust, or similar systems programming languages.
- Database technologies (relational, NoSQL, columnar, analytical) such as PostgreSQL, ClickHouse or similar.
- Running services on Kubernetes and cloud platforms (preferably GCP).
Familiarity with CI/CD tools and security practices.
Additional advantage: Front-end development experience.
Domain knowledge: Banking processes, trade lifecycle and post-trade processing for financial products, especially FX.

Joining this project you’ll become part of Mindbox – a tech-driven company where consulting, engineering, and talent meet to build meaningful digital solutions. We’ll back you up every step of the way, accelerate your development, and ensure your skills make a difference.

Ready to take the next step?

Submit your application! We look forward to reviewing your profile 😊

Know someone who might be a great fit?
Feel free to share this opportunity using the referral link: Mindbox Referrals System