Fullstack Java Developer

Atos Group; City Of London; On-site; GBP 65,000 - 110,000; Full time

Benefits offered by this job

Pension Scheme - contributions matched

Private medical Cover

Income Protection

Life Assurance

25 days paid leave + National Holidays

Flex benefits program

Job summary

Atos Group in London is seeking a Fullstack Java Developer to design and build modern enterprise applications. You will work across front-end and back-end teams, delivering robust features with a focus on quality, scalability and automation.

The role requires strong Java and Spring Boot experience, plus React JS for UI, microservices, and CI/CD practices. You will engage customers, mentor juniors, and contribute to secure, compliant software in regulated environments.

Qualifications

• Experience building enterprise Java applications using Spring Boot.
• Proficient in front-end React JS for modern UI development.
• Knowledge of microservices, API integrations and CI/CD pipelines.

Responsibilities

• Develop and maintain full-stack Java applications.
• Collaborate with cross-functional teams to deliver features.
• Implement test automation and ensure code quality.

Skills

Full stack development

Back-end development

Team collaboration

Tools

Java

Spring Boot

React JS

Mule 4 / Anypoint Studio

API Manager

CI/CD

Job description

Fullstack Java Developer

2026-09-18T00:00:00

London

Greater London

GB

EC2V 8

Any

2026-12-17T07:02:20.303

hackajob is partnering directly with Atos to hire for this role. Atos is the Atos Group brand dedicated to AI-powered, secure, end-to-end digital services. Atos designs, develops, and operates critical digital environments that drive performance, resilience and sovereignty, helping public and private organizations worldwide retain control over their data and infrastructures, while meeting regulatory requirements. With more than 54,000 employees serving over 4,500 clients across 54 countries, Atos helps modernize core IT systems, accelerate cloud and data transformation, strengthen cybersecurity, and deliver secure digital workplace environments to support its clients, its employees and society. Atos also provides consulting and advisory services through its Atos Amplify brand. A trusted partner in operating complex and mission-critical environments, Atos supports organizations across highly regulated and sovereign contexts.

About Atos Group

Atos Group is a global leader in digital transformation with approximately 56,000 employees and annual revenue of approximately €7.2 billion (at the go-forward perimeter), operating in 54 countries under two brands - Atos for services and Eviden for products and systems. European number one in cybersecurity and a leader in cloud, Atos Group is committed to a secure and decarbonized future and provides tailored AI-powered, end-to-end solutions for all industries. Atos Group is listed on Euronext Paris.

Bigger Challenge / Scope

Join a team that supports, enhances, and modernizes complex enterprise applications built on Java, Spring Boot, React JS, Microservices, AWS, and Cloud technologies. You will have the opportunity to work on large-scale digital transformation initiatives, application modernization, cloud migration, performance optimization, and automation programs that deliver measurable business value and customer outcomes.

Better Technology

The team is no longer limited to traditional application support. It leverages modern technologies and engineering practices including Java, Spring Boot, React JS, AWS Cloud, Microservices Architecture, DevOps, CI/CD, SRE, Automation, and AI-driven operations. This provides exposure to modern engineering practices and cutting-edge technologies that enhance both technical expertise and career growth.

Work / Team Culture

Our teams operate in a highly collaborative and agile environment where cross-functional engineers partner with customers to solve complex business challenges. The culture encourages continuous learning, technical innovation, knowledge sharing, and adoption of modern engineering practices while maintaining a strong focus on quality, reliability, and customer success.

Job Description

Full stack Java preferred with strong experience in back-end development as well as JSF UI. Demonstrates solid understanding of component/microservice-based architecture and design systems. Must have experience using continuous delivery toolsets and following Test-Driven Development (TDD) practices with test automation frameworks (e.g., Jest), experience with Git and CI/CD, experience with Mulesoft is essential. Anypoint Studio, Anypoint Exchange, API Manager, Runtime Manager. Experienced in developing integrations using Mule 4 (flows, connectors, components), building and consuming APIs, handling JSON and XML payloads.

We Care About Our Employees' Happiness

• Pension Scheme - contributions matched up to 10%
• Private medical Cover
• Income Protection
• Life Assurance
• 25 days paid leave + National Holidays
• Flex benefits program

As a Disability Confident employer, we encourage applications from all applicants, especially, differently abled applicants. We aim to ensure that those who meet the minimum criteria for this position will be offered an interview. We are committed and willing to make reasonable adjustments to the application and assessment process to accommodate your needs. We are a care leaver friendly employer

Here at Atos, diversity and inclusion are embedded in our DNA.