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# UI Full Stack Developer

- **Company:** TEKsystems
- **Location:** London, UK
- **Experience:** Expert
- **Salary:** £130,000.0 - £182,000.0
- **Contract:** Permanent contract
- **Skills:** C Sharp (Programming Language), Software Design Patterns, Software Deployment, Software Engineering, Data Streaming, TypeScript, Web Applications, ReactJS, Spring-boot, Figma, Front End Software Development, Restful APIs, Api Management, Microservices
- **Published:** September 1, 2026
- **Apply:** https://www.careerboard.com/pt/en/find-jobs-in-United-Kingdom/-92555ADF7639465371/

## About the Role

* 8+ years of software engineering experience.
 * Strong React and TypeScript development experience.
 * experience building complex enterprise-grade web applications.
 * Strong understanding of REST APIs and microservice architectures.
 * experience integrating Front End applications with Back End systems.
 * Ability to understand API contracts, data flows, and Back End integration patterns.
 * Strong understanding of testing, state management, and Front End architecture.
 * experience working from Figma designs and collaborating with UX teams.

Additional Skills & Qualifications

 * Development experience with Spring Boot.
 * experience with Linaria.
 * Familiarity with AG Grid Enterprise.
 * Background in trading, exchange, or capital markets.
 * experience working on high-performance, data-heavy applications.

## Description

We are seeking a Senior Full Stack Developer with a strong focus on Front End development to join our team. You will play a pivotal role in modernising our trading platform, moving it from a Legacy monolithic C# architecture to a cutting-edge microservices-based ecosystem. A key project involves developing a new Regulatory Reporting Portal for external customers, driven by regulatory changes and strategic objectives to outperform competing exchange offerings.
Responsibilities

 * Design and develop modern React-based user interfaces for a new customer-facing regulatory reporting platform.
 * Build features end-to-end from Figma designs through to production deployment.
 * Integrate Front End applications with Spring Boot microservices and REST APIs.
 * Collaborate with Back End engineers to define contracts, troubleshoot integrations, and deliver seamless user experiences.
 * Develop reusable component libraries and design patterns using Storybook.
 * Ensure high standards around testing, quality, performance, and maintainability.
 * Contribute to architectural discussions as the platform evolves away from Legacy technologies.


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