Expert Java API Engineer - Payment Processing

Expert Java API Engineer – Payment Processing

Miejsce pracy: Kraków

Technologies we use

Expected

• Java
• Spring Boot
• Docker
• Kubernetes
• Kafka
• Splunk
• Grafana
• Prometheus
• Jaeger
• Kiali
• OpenTelemetry

Optional

• Go
• Rust
• SQL

Operating system

• Windows

About the project

As an Expert Java API Engineer, you will be working for our client in the financial services industry, helping deliver a future-state architecture for payment processing. You will build lean, reusable payment capabilities focused on high availability, resilience, modernization, and cloud adoption—enabling new products to reach customers faster, with greater quality and efficiency.

Unleash the future of payments — engineer resilient, cloud-ready platforms that power next-generation financial services!

Krakow-based opportunity with hybrid work model.

Only candidates with an existing legal right to work in the European Union will be considered for this role.

This is how we organize our work

This is how we work

• agile

Your responsibilities

• Deliver engineering expertise for future-state payment processing architecture.
• Design, develop, test, debug, and document high-quality software and API solutions.
• Build highly available and resilient payment processing services using modern microservice architectures.
• Produce architectural artefacts, technical alternatives, data models, and low-level designs.
• Partner with DevOps teams to enable automated infrastructure delivery, DevSecOps value streams, and CI/CD pipelines.
• Provide technical leadership, architecture guidance, mentoring, and consultation to development teams.
• Identify and resolve complex architectural, development, technical, and business issues.
• Support the modernization of the payment estate while ensuring compliance with relevant controls, standards, cybersecurity, and data privacy requirements.

Our requirements

• A Bachelor’s degree in Computer Science, Engineering, or a related field.
• 15+ years of applied experience as an API Engineer and 10+ years of software engineering experience.
• 10+ years of programming experience in Java.
• Expert knowledge of distributed systems, microservices, and Spring Boot.
• Strong expertise in Docker, Kubernetes, service mesh, Kafka, and Kubernetes CNI.
• Experience with API design, application security, authentication, caching, middleware, and architectural documentation.
• Expertise in JVM tuning, diagnostics, troubleshooting, and performance optimization.
• Practical knowledge of cloud and DevOps technologies, including VPC/firewall, IAM, cloud sizing and costing, monitoring, and observability tools such as Splunk, Grafana, Prometheus, Jaeger, Kiali, and OpenTelemetry.

Optional

• Experience with Go and Rust programming languages.
• Expert-level SQL coding abilities.
• Experience working in a financial institution, ideally within payments.
• Experience with distributed databases.

What we offer

• Stable and long-term cooperation with very good conditions
• Enhance your skills and develop your expertise in the financial industry
• Work on the most strategic projects available in the market
• Define your career roadmap and develop yourself in the best and fastest possible way by delivering strategic projects for different clients of ITDS over several years
• Participate in Social Events, training, and work in an international environment
• Access to attractive Medical Package
• Access to Multisport Program
• Access to Pluralsight
• Flexible hours

Benefits

• sharing the costs of sports activities
• private medical care
• flexible working time
• fruits
• integration events
• corporate gym
• saving & investment scheme
• no dress code
• coffee / tea
• drinks
• christmas gifts
• birthday celebration
• sharing the costs of a streaming platform subscription
• access to +100 projects
• access to Pluralsight

Recruitment stages

• online interview
• online interview

#GETREADY to meet with us!

ITDS Business Consultants is involved in many various, innovative and professional IT projects for international companies in the financial industry in Europe. We offer an environment for professional, ambitious, and driven people.

We would like to meet you. If you are interested please apply and attach your CV in English or Polish, including a statement that you agree to our processing and storing of your personal data.

ITDS’s Whistleblower Procedure

You can report violations in accordance with ITDS’s Whistleblower Procedure available here:

ITDS Polska Sp. z o.o.

ITDS supports financial service providers to take the next steps.

We identify what’s possible, every day. Opportunities in the areas of technology, organization, and digitization.

We see where banks, insurers, payment companies, or fintech can go and how they can get there.

That’s why we want to stimulate you to ramp up your ambition. Forget what you perceive as restraints and step towards the new reality.

ITDS in Poland - Pure player in new Technologies & Financial Industry

+300 IT implementation professionals

+20 clients in the Banking, Insurance, Payment & Fintech Industry

ITDS excels in digital strategy delivery and implementation of best-of-breed lending solutions. ITDS has delivered successful strategic projects throughout Europe since 1998. We combine the experience we’ve accumulated with in-depth knowledge of technologies, business processes, and EU legislation to unlock new business opportunities.

Informujemy, że administratorem danych jest ITDS z siedzibą w Warszawie, ul. Złota 59 (dalej jako "administrator"). Masz prawo do żądania dostępu do swoich danych osobowych, ich sprostowania, usunięcia lub ograniczenia przetwarzania, prawo do wniesienia sprzeciwu wobec przetwarzania, a także prawo do przenoszenia danych oraz wniesienia skargi do organu nadzorczego. Dane osobowe przetwarzane będą w celu realizacji procesu rekrutacji. Podanie danych w zakresie wynikającym z ustawy z dnia 26 czerwca 1974 r. Kodeks pracy jest obowiązkowe. W pozostałym zakresie podanie danych jest dobrowolne. Odmowa podania danych obowiązkowych może skutkować brakiem możliwości przeprowadzenia procesu rekrutacji. Administrator przetwarza dane obowiązkowe na podstawie ciążącego na nim obowiązku prawnego, zaś w zakresie danych dodatkowych podstawą przetwarzania jest zgoda. Dane osobowe będą przetwarzane do czasu zakończenia postępowania rekrutacyjnego i przez okres możliwości dochodzenia ewentualnych roszczeń, a w przypadku wyrażenia zgody na udział w przyszłych postępowaniach rekrutacyjnych - do czasu wycofania tej zgody. Zgoda na przetwarzanie danych osobowych może zostać wycofana w dowolnym momencie. Odbiorcą danych jest serwis Hello HR oraz inne podmioty, którym powierzyliśmy przetwarzanie danych w związku z rekrutacją.
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