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OPTIVEUM sp. z o.o. career site
IT · Warsaw · Hybrid

Java Developer

US-based technology firm in private capital / financial markets

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.

Specjalizacja / specialism
IT
Role
BackEnd Developer
Locations
Warsaw
Remote status
Hybrid

Current job openings - Aktualne oferty pracy

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About OPTIVEUM sp. z o.o.

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

Founded in 2020
IT · Warsaw · Hybrid

Java Developer

US-based technology firm in private capital / financial markets

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