Senior Java Developer

Expected, Java, Spring Boot, Hibernate, REST APIs, JMS, Oracle, GitLab, Jenkins, SonarQube

Optional, Docker, Kubernetes

About the project, Warsaw/Cracow | hybrid mode (1-2 days/week from the office, flexible), , Join a team developing a mission-critical Corporate Banking Payments platform used by thousands of corporate clients across 40+ countries. The application is a key component of a global banking ecosystem, supporting high-volume payment processing and enabling secure, reliable financial operations for international businesses., , You will work on a mature, large-scale product that has been continuously developed and modernized for over 20 years. The team focuses on delivering new business and regulatory requirements, modernizing the technology stack, and improving platform capabilities while ensuring stability and performance. You will work in an international environment, collaborating closely with teams located in Poland, France, and Hong Kong.

Your responsibilities, Design, develop and maintain business-critical payment processing applications using Java and related technologies., Contribute to the ongoing modernization of a large-scale banking platform, including upgrades of frameworks, libraries, and infrastructure components., Analyze functional and technical requirements provided by dedicated business and regulatory teams and translate them into high-quality software solutions., Collaborate with developers, analysts, architects, and stakeholders in an international environment., Perform code reviews and ensure high-quality, maintainable solutions., Estimate development effort, plan technical tasks, and provide status updates., Proactively identify improvements and contribute to technical decision-making., Mentor team members and share technical knowledge.

4+ years of commercial experience in software development, including extensive hands-on experience with Java., Strong knowledge of Java 17/21 and modern backend development practices., Experience with Spring Boot, Hibernate, REST APIs, JMS, and Oracle databases., Experience working with large-scale enterprise applications and complex software ecosystems., Solid understanding of software architecture, design patterns, and object oriented programming principles., Experience with CI/CD pipelines and development tools such as GitLab, Jenkins, and SonarQube., Ability to work independently, proactively solve problems, and drive technical initiatives., Experience collaborating within distributed, multicultural teams., Strong communication skills and fluent English (written and spoken).

Optional, Angular experience (approx. 5% of the work)., Spring Cloud and microservices experience., Knowledge of Docker, Kubernetes, or containerization concepts., Experience in banking, payments, or other regulated industries., Previous technical leadership or mentoring experience.

This is how we work, at the client's site

This is how we work on a project, Continuous Deployment, Continuous Integration

What we offer, Employment based on B2B or CoW, MEDICOVER healtcare package, Multisport Card, My Benefit Cafeteria, Support in professional development, Internal Mobility Program – enjoy many opportunities for career growth, job rotations, diversity of projects & technologies, International, diverse, and inclusive working environment – get experience in global projects for worldwide leaders and enjoy multinational teams, Referral Program – enjoy cooperation with your colleagues and get the bonus!, 5/10 years NATEK club – we offer long term cooperation and celebrate each fifth year cooperation anniversary with gifts, NATEK CSR Events & team buildings – enjoy our values: accountability, partnership and expertise and #workITwithus

Benefits, sharing the costs of sports activities, private medical care, life insurance, remote work opportunities, flexible working time, integration events, employee referral program, extra leave

NATEK POLAND, Established in Brno, Czech Republic in 2004, we have been working with world leaders in the IT industry from day one. We are an experienced company with in-depth knowledge of building high-performing IT project teams., , Our mission is to deliver high-quality IT outsourcing solutions within CEE to help our clients make improvements in their performance while providing our employees with a work environment based on partnership., , Our teams’ experience in various industries (FMCG, banking, automotive, telecommunication) allows us to properly anticipate clients’ needs. Thanks to our expertise we develop customized solutions. Our recruitment department can match IT experts to the rights projects to provide a, win-win situation.

This is how we work,