Job Description

Senior UI Developer (React/TypeScript)

Contract Type: B2B Contract

Duration: 6 month rolling contract with at least 2 years of work secured

Rate: Up to 2,300 PLN per day (depending on experience and seniority)

Location: Remote in Poland (only 1 day per month in-office initially)

 

About the Opportunity

 

Join a new team being established in Poland as part of an international expansion by a leading global financial institution. This is a rare opportunity to work on an in-house built pricing, execution, and trade processing platform for financial markets as part of a global development team.

 

Key Responsibilities

 

Work across all delivery stages from requirements gathering to post-release support

Own and collaborate on technical design decisions

Break down large projects into manageable tasks and coordinate solution delivery

Build new functionality within existing coding patterns and architecture

Coach other developers and participate in hiring processes

Develop complex, real-time event-driven multi-modular single page applications

 

Essential Requirements

 

7+ years of relevant development experience

Expert-level skills in React, Redux, RxJS, NPM/Yarn, webpack, CSS, HTML

Experience with CI/CD pipelines (e.g., Azure DevOps)

Proven experience building complex, real-time (event-driven) multi-modular single page applications

Strong software design principles and knowledge of design patterns

Ability to optimize performance of latency-sensitive systems

Full-stack development capability (preferably with Java backend experience)

Fluent English communication skills

 

Preferred Qualifications

 

Financial markets domain knowledge

Experience with TypeScript in enterprise environments

Background in high-performance trading systems

Previous experience in international banking or financial services

 

What We Offer

 

Competitive daily rate up to 2,300 PLN

Long-term contract security with 2+ years of work already confirmed

Remote-first working arrangement with minimal office requirements

Opportunity to work on cutting-edge financial technology

International collaboration with global teams

Professional development through coaching and mentoring opportunities

 

Ideal Candidate Profile

 

You are a seasoned UI developer with deep expertise in React and modern JavaScript frameworks. You thrive in fast-paced environments where performance and reliability are critical. You have experience with real-time systems and understand the unique challenges of building user interfaces for financial applications.