28Stone is a full service custom solutions firm. We offer a wide range of services - from ‘tip of the spear’ advisory, application design, system architecture to implementation, testing and deployment.

We partner with the world’s leading financial institutions to design and build robust financial applications that improve their business performance while reducing system risk, cost and time to market.

We develop technology of value: we are proud of our proven track record of delivering quality results and the trust our clients place in us with ongoing, repeat engagements.

We celebrate winning the Top 1% Workplace Awards 2023 in the “Best Workplace for Technologists” category and are always seeking to expand our team with positive, open-minded, and motivated individuals who are eager to learn as well as share what they know.

Your impact zones Perform system design (High /low), Workflow diagrams and participate in design review sessions. Designing and writing clean and testable code. Effectively collaborating with the project team. Maintaining own productivity and aligning to project goals. Actively contributing to technical solution definition. Communicating with the client daily.

Your expertise At least 5+ years of hands-on experience in developing enterprise applications using Java. Must have 5 plus years of Spring/Spring boot development experience Experience in Camel. Threading/Concurrency, Collections, Exception Handling and other core java features. Experience in writing REST, Microservice & APIs- including performance, security, and error handling aspects. Good knowledge of SQL, entity relations (ORM) and writing queries. Decent knowledge in protocols - http/https, SSL, TCP and others. Good understanding of the CI/CD process. Build tools - Maven / Gradle Version control - GIT (preferred) / SVN. Good written and spoken English communication skills (Communicate with international clients and colleagues). Ability to work in a team and independently.

Considered an advantage Messaging experience (AMQ or Kafka). Knowledge of cloud (Azure) and containers (OpenShift or similar). Knowledge of Financial markets and Fixed income.

Compensation Gross 21 - 38 EUR/hour.

Benefits Work equipment: laptop (Windows only), headset, keyboard, mouse, and backpack. Loyalty gifts. Annual reviews and growth opportunities. Corporate event travel budget. 20 unpaid time-off days per working year.

We are flexible and use an individual approach with each candidate we meet, so we invite you to apply even if you do not meet some of the listed requirements.

Only candidates who have the right to work in Poland are considered for this position. The mentioned remuneration may vary depending on the candidate’s skills, qualifications, and experience. Please read our Careers Privacy Statement found on our website.

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Senior Java Developer