Senior Frontend Software Engineer (React / TypeScript)
Location: Bristol, UK
Working model: Hybrid – 2 days on‑site per week (mandatory)
Role Summary
We are seeking Senior Frontend Software Engineers to work within cross‑functional feature teams delivering front‑end led capabilities for the Data Marketplace. The role focuses on building accessible, high‑quality, and well‑tested user interfaces on a cloud‑native platform running on Google Cloud Platform (GCP).
Engineers
are expected to take strong technical ownership of frontend delivery,
contribute to technical direction, and support other engineers within
the team.
Skillsets required:
Primary focus on experienced Frontend Software Engineers, with strong React expertise.
Proven experience building accessible, testable, scalable user interfaces.
Strong test-first mindset (TDD) and confidence writing automated tests.
Hands-on experience with:
* React, JavaScript/TypeScript
* JestJS and modern frontend testing practices
* Accessibility standards (WCAG) and tooling (axe-core)
Desirable (bonus) skills:
* Backend development with Java / Quarkus
* Working with REST APIs and PostgreSQL
* DevOps exposure across CI/CD pipelines, containers and Kubernetes
Experience operating at Senior level, including:
* Technical ownership of solutions
* Coaching/mentoring other engineers
* Contributing to architectural and technical direction
Skills Required
- Strong experience as a frontend software engineer with React expertise
- Experience building accessible, testable, and scalable user interfaces
- Strong test-first mindset and confidence writing automated tests
- Hands-on experience with React and JavaScript or TypeScript
- Hands-on experience with JestJS and modern frontend testing practices
- Knowledge of accessibility standards including WCAG and tooling such as axe-core
- Senior-level experience taking technical ownership of solutions
- Experience coaching or mentoring other engineers
- Experience contributing to architectural and technical direction
- Backend development experience with Java or Quarkus
- Experience working with REST APIs and PostgreSQL
- DevOps exposure to CI/CD pipelines, containers, and Kubernetes
What We Do
Test Triangle is a Dublin-headquartered technology services company founded in 2012. It helps organizations transform operations through IT service management, digital transformation, software testing and quality assurance, cloud solutions, consulting, managed services, and recruitment. The company also provides application testing, DevOps, robotic process automation, software and mobile development, technology training, staffing, and resource augmentation across Ireland, the UK, and international markets.
