Frontend Engineer (Trading Systems)

295.48 - 354.58 USDNet per day - B2B
JavaScript

Frontend Engineer (Trading Systems)

JavaScript
Fabryczna 1A, Kraków +1 Location

Korn Ferry

Freelance
B2B
Senior
Hybrid
295.48 - 354.58 USD
Net per day - B2B

Job description

Frontend Engineer (Trading Systems)

 

Contract Length: 8 months initially

Work Model: Hybrid (3 days onsite per week at Krakow or Wroclaw office)

Rate: €250 - €300 per day

 

I'm currently partnering with a leading global financial institution on a contract opportunity for a React/JavaScript Developer to join a high-performing team building real-time desktop applications within a trading environment.

This role focuses on developing high-performance applications running within an OpenFin desktop ecosystem, enabling seamless communication between financial systems.

 

What we're looking for:

  • Strong JavaScript experience, particularly asynchronous programming (async/await, Promises, event-driven architectures)

  • Solid React development experience

  • Experience with OpenFin or similar desktop containers (e.g. Glue42, Finsemble, Electron in financial environments)

  • Exposure to inter-application messaging / interoperability standards (e.g. FDC3) is highly desirable

  • Strong debugging and performance optimisation skills in real-time systems

Tech stack

    English

    B2

    React

    advanced

    JavaScript

    advanced

    TypeScript

    advanced

    Next.js

    advanced

    Async Programming

    advanced

Office location

Published: 26.02.2026

Frontend Engineer (Trading Systems)

295.48 - 354.58 USDNet per day - B2B
Summary of the offer

Frontend Engineer (Trading Systems)

Fabryczna 1A, Kraków
Korn Ferry
295.48 - 354.58 USDNet per day - B2B
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