Full-Stack Developer (React + Java), Officer
State Street3 days ago
Kraków, Poland or Gdańsk, PolandMid Level / Senior
Responsibilities
- Design, develop, enhance, and maintain enterprise-grade applications using React.js and Java.
- Build reusable, responsive, high-performance UI components using frontend architecture patterns.
- Integrate React applications with Java-based backend services, including REST and WebSocket APIs.
- Perform backend development tasks such as API integration, minor enhancements, and bug fixes.
- Collaborate with UX, backend, QA, DevOps, and other development teams.
- Write unit and automation tests, participate in code reviews and release activities, and troubleshoot production issues.
Requirements
- Bachelor’s degree or foreign equivalent in Computer Science, Engineering, Mathematics, Physics, or another technical field; a master’s degree is strongly preferred.
- 2–5 years of experience working with React and Java.
- Experience with React Hooks, component-based architecture, JavaScript or TypeScript, DOM, and modern CSS3.
- Experience with Redux, RxJS, object-oriented programming using Java or C#, relational and non-relational databases, and REST or WebSocket APIs.
- Strong analytical, problem-solving, written, and verbal communication skills.
- Knowledge of Azure, microservices, or micro-frontend architecture and financial-services experience are preferred.
Benefits
- Permanent contract from day one.
- Hybrid work arrangement requiring at least three days per week in the office in Krakow or Gdansk.
- Additional holidays, including Birthday Day Off and anniversary days off in the third and fifth years.
- Gold medical package for employees and their families, premium life insurance, and a private pension plan.
- Soft-skills training, technical workshops, language classes, development programs, well-being programs, paid volunteer opportunities, and employee networks.
Tech Stack
Categories
About State Street
State Street is a global custodian bank and asset manager serving institutional investors with investment servicing, fund accounting, trading/FX, data, and index/active strategies. Its products include State Street Global Advisors’ funds and ETFs, the Charles River Investment Management Solution, and the front-to-back State Street Alpha platform. Founded in 1792 and headquartered in Boston, the company is publicly traded on the NYSE (ticker: STT) and operates across major markets worldwide.