Java Developer

Optiveum is a recruitment and consulting company created based on our 20-plus years of experience in HR & IT services.

We work for Clients located in Poland and abroad providing our local and international Candidates with Project-based or Permanent job opportunities in a remote or office-based model.

Optiveum sp.

z o.o. to firma rekrutacyjno- konsultingowa prowadzona na bazie naszego ponad 20-letniego doświadczenia na rynku usług HR i IT.

Pracujemy z klientami w Polsce i za granicą oferując międzynarodowym kandydatom pracę stałą lub projektową u Klientów w biurze lub w modelu zdalnym.

DANE FIRMY/ COMPANY DATA

Optiveum Sp. z o.o.

ul.

Tomasza Zana 43 lok.

2.1  20-601 Lublin 
nr KRS: 0000834436, NIP 7010975729

Contact us at: info (at) optiveum.com

Senior Java Full Stack Developer

📍 Warsaw / Hybrid (initially remote, ~3 days/week on-site) | 💰 Up to 6,500 USD | 🏢 Our Client – US-based technology firm in private capital / financial markets

We are looking for a Senior Java Full Stack Developer (5+ years of experience) with strong expertise in Java (Spring Boot, Hibernate, JPA) and React.js.

You will join a dynamic Agile team working on complex, high-impact financial and capital market systems.

This role is based in Warsaw with an initial remote setup, moving to a hybrid model (around 3 days per week on-site).

Key Responsibilities

• Front-End Development: Build responsive and high-performance UI components using React.js, Redux, TypeScript, and modern JavaScript.


• Back-End Development: Develop RESTful APIs and microservices with Java, Spring Boot, Hibernate, and JPA.


• Database & Integration: Work with SQL (PostgreSQL, MySQL) and NoSQL (MongoDB, Redis) databases.
  
  Integrate third-party services and APIs.


• DevOps & Deployment: Manage CI/CD pipelines (Jenkins, GitHub Actions, GitLab CI/CD), containerization (Docker, Kubernetes), and cloud deployments (AWS, Azure, GCP).


• Quality & Collaboration: Write clean, testable code with unit/integration tests.
  
  Collaborate closely with designers, product managers, and DevOps engineers in Agile ceremonies.

What We’re Looking For

• 5+ years’ experience as a Full Stack Developer with Java + React.js.


• Strong grasp of front-end frameworks (Material-UI, Bootstrap, Tailwind CSS).


• Deep knowledge of microservices, API Gateway, and authentication (OAuth2, JWT).


• Bachelor’s or Master’s degree in Computer Science, Engineering, or related field.


• Excellent communication, problem-solving, and teamwork skills.

What's offered

• Competitive salary up to 6,500 USD (B2B contract).


• Remote start, transitioning to hybrid (Warsaw office).


• Full benefits package.


• Generous paid time off.


• Opportunity to work on impactful financial / capital market systems.


• Collaborative, innovative, and tech-driven culture.


• Learning opportunities, conferences, and training programs.