Backend Engineer

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

Are you passionate about shaping cutting-edge architecture and delivering innovative solutions? We’re looking for a Backend Engineer to join our client’s team and be part of a transformative journey towards next-generation payment capabilities.

You will play a critical role in delivering Future State Architecture (FSA) for payment processing, introducing a lean and reusable payment processing engine. This engine will become the core of future payment capabilities, providing high-speed, cost-effective, and high-quality product delivery.

Sounds like your kind of challenge?

#LI - Hybrid: 2x/week from the office in Kraków

What you'll be doing

Deliver engineering expertise for Future State Architecture and create best-in-class payment processing capabilities.
Produce high-quality code artifacts, ensuring quality gates are met and robust testing is included.
Design and develop highly available and resilient software in a distributed environment.
Partner with DevOps teams to implement automated infrastructure delivery, CI/CD pipelines, and DevSecOps practices.
Provide technical solutions to complex problems, perform feasibility studies, and deliver architecture guidance in alignment with global standards.
Stay current on emerging technologies and compliance requirements, including cybersecurity and data privacy regulations.

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

What you get in return

Flexible cooperation model
Hybrid work setup – 2x/week 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

8+ years of applied experience as an API engineer with solid understanding of architectural design (gap analysis, data models, etc.).
Strong engineering background in back-end microservices development, application security, authentication, caching, and middleware.
Advanced programming skills in Java (Go and Rust are a plus). Familiarity with Spring Boot and distributed systems design.
Knowledge of Kafka, Docker, Kubernetes, and experience with observability tools (Grafana, Prometheus, Jaeger).
Expertise in cloud environments, networking, identity and access management, and DevOps methodologies.
Experience working in financial institutions, preferably in payment systems.
Strong leadership abilities to mentor and inspire the team, coupled with critical thinking and problem-solving skills.
Excellent English communication skills, both written and verbal.
Bachelor’s degree in Computer Science, Engineering or related field.

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