Sr Full-stack Developer (React, Java)

Harvey Nash Technology Show all offers

140 - 170 PLN / hour

Warsaw

Expires Oct 6, 2026

2 months ago

In short

Sr. Full-stack Developer (React, Java) needed in Warsaw for long-term B2B contract. Responsibilities include full-stack development for Treasury at a financial institution. Requires 5+ years of experience, React, Java, Spring Boot, and testing knowledge.

Keywords

React Java Spring Boot Python Full-stack Software Engineering Unit Testing Integration Testing AI Tools

AI-written summary based on the listing content.

We are looking for contractor:

Sr Full-stack Developer (React, Java)

Warsaw (3 days in office per week)

Rate: 140-170 PLN / h (B2B contract via Harvey Nash)

Duration: long-term contracting (1st contract: to the end of 2026, then extensions)

End-client: international financial institution Tasks:

Fullstack tasks (React, Java, Spring Boot, Python) for Treasury business area at international bankWork in large scale global dev team Requirements:5+ years of experience in software engineering (fullstack preferrably)

Good knowledge of ReactGood knowledge of Java, Spring Boot

Python is desired (scripting experience is ok)

Some experience with unit & integration testsSome experience with AI tools for devsNice to have: finance/fintech sector exp, Redux, Claude, Jest, Cypress

Fluent in English