Junior Full Stack Engineer

Intranet; Cardiff; Hybrid; GBP 20,000 - 24,000; Full time

Job summary

A dynamic tech company based in Cardiff is seeking a Junior FullStack Engineer to design and build high-quality software. You will work in a cross-functional agile team, focusing on both front-end (React / TypeScript) and back-end (Java / Spring Boot) development. This role offers mentorship and professional growth opportunities, along with a competitive salary and flexible benefits. This is a hybrid position with a 12-month fixed-term contract.

Benefits

Team training and support

Competitive salary

Pension package

Flexible benefits and rewards

Qualifications

• Some commercial experience or substantial project work building web applications.
• Basics with React and TypeScript; familiarity with routing, data fetching.
• Fundamentals in Java and Spring Boot for building simple REST endpoints.
• Exposure to front-end and server-side testing tools.

Responsibilities

• Deliver features across the stack: build UI with React / TypeScript.
• Collaborate closely on code reviews, refactoring, and writing tests.
• Follow clean code practices and maintain technical documentation.
• Engage actively in agile methodologies including standups and planning.

Skills

React

TypeScript

Java

Spring Boot

Git

Basic SQL

Education

Bachelors or Masters in Computer Science or related field

Tools

Jest

JUnit

Azure Pipelines

Docker

Job description

Location: Cardiff (Hybrid) flexible working

Contract: 12 month Fixed Term Contract

Salary: 23587.20

Job Description

We are looking for a Junior FullStack Engineer to design and build high quality software used across our enterprise environment. You will work in a cross‑functional agile team, contribute across the full development lifecycle while growing your skills through pairing code reviews and mentorship. You’ll enjoy working across the stack – React / TypeScript on the front end and Java / Spring Boot on the back end.

Key Responsibilities

• Deliver features across the stack: build UI with React / TypeScript and services/APIs with Java / Spring Boot.
• Collaborate closely: pair programming, code reviews, refactoring, and writing tests (unit, component, end‑to‑end).
• Quality & accessibility: follow clean code, secure coding practices, WCAG, aligned accessibility and frontend testing strategies.
• Help maintain clear up‑to‑date technical documentation to make onboarding easier for new team members.
• Agile ways of working: actively engage in standups, planning, reviews and retrospectives.

Knowledge, Skills & Experience

• Some commercial experience (or substantial project/placement work) building web applications.
• Front end: basics with React and TypeScript; familiarity with routing, data fetching.
• Back end: fundamentals in Java and Spring Boot (building simple REST endpoints, data access).
• Testing mindset: exposure to Jest / React Testing Library and JUnit on the server side.
• Version control: comfortable with Git branches, pull requests and code reviews.
• Databases: basic SQL and awareness of document/relational databases.
• Communication: clear written and spoken English; collaborative and open to feedback.
• Education: Bachelors or Masters in Computer Science or related field or equivalent practical experience.

Other Qualifications

• Azure familiarity and CI/CD with Azure Pipelines or GitHub Actions.
• Containers & cloud basics: Docker environment configuration and deployment fundamentals.
• OpenAPI / Swagger design/consumption and API tools (e.g. Postman, Bruno).

Benefits

• A dynamic international and challenging work environment.
• Training and support to reach your full potential including continuous professional development.
• Competitive salary, pension package and a range of flexible benefits and rewards.
• Challenging tasks with individual development and training opportunities.

Equal Opportunities

The success of our organisation stands with the quality of our people and the ideas they have. Diversity is extremely important to Atradius. We encourage and welcome everyone to apply to our positions.