Full-Stack Engineer

The nuclear sector is tackling some of the most complex challenges of our time—modernising infrastructure, enhancing safety, and accelerating the transition to low-carbon energy. Our Digital Products and Technology (DP&T) team partners with clients to address these challenges by building secure, scalable solutions that integrates IoT, robotics, and engineering data.

As a Full Stack Engineer, you’ll contribute to the design and delivery of production-grade applications across the stack—from APIs and data layers to responsive, accessible front ends—primarily on Azure. You’ll collaborate in multidisciplinary teams with engineers, consultants, and domain experts to transform complexity into elegant, maintainable solutions that drive real-world impact.

• Digital Engineering Enablement. Design, build, and evolve web-based platforms that connect engineering data, IoT devices, and robotics systems—empowering teams to make data-informed decisions and drive automation.
• Service & API Development. Deliver secure, scalable services and APIs using technologies like Node.js, .NET Core, or Python, applying clean architecture principles to ensure long-term maintainability and resilience.
• User Experience & Accessibility. Craft intuitive, performant, and accessible user interfaces using modern frameworks such as React, Vue.js, or Angular—ensuring usability across diverse user groups and devices.
• Continuous Delivery & Quality Assurance. Automate software delivery pipelines with CI/CD tools (e.g., Azure DevOps), embedding testing, quality gates, and security checks to uphold engineering excellence.
• Cloud-Native Operations. Deploy and operate solutions in cloud environments (Azure preferred), leveraging containerisation (Docker) and orchestration (Kubernetes) to enhance scalability, observability, and fault tolerance.
• Agile Collaboration & Discovery. Work within agile, cross-functional teams to co-create solutions—actively participating in discovery, backlog refinement, and iterative delivery to meet evolving user and business needs.
• Engineering for Sustainability. Champion non-functional requirements such as security, reliability, performance, and maintainability throughout the software lifecycle—ensuring solutions are robust and future-ready.

• Proven experience delivering full-stack solutions that solve real-world problems.
• Strong proficiency in JavaScript/TypeScript and at least one modern front-end framework (e.g., React, Vue, Angular).
• Back-end development experience using Node.js, .NET Core, or Python, with a focus on designing robust APIs (REST/GraphQL).
• Solid understanding of both SQL and NoSQL databases, and how to use them effectively.
• Hands-on experience with CI/CD pipelines and version control using Git.
• Familiarity with cloud platforms (Azure preferred) and containerisation/orchestration tools (Docker, Kubernetes).
• A collaborative, outcome-focused mindset with strong problem-solving and communication skills.

Bonus Skills That Help You Thrive. These aren’t required, but they’ll help you make an even greater impact:

• Experience with real-time engines like Unity or Unreal.
• Exposure to deploying applications for mixed reality devices.
• Knowledge of secure coding practices and familiarity with security frameworks (e.g., OWASP ASVS, ISO 27001).
• Understanding of authentication and authorisation protocols (OAuth 2.0, OpenID Connect).
• Experience with threat modelling and vulnerability management processes.
• Familiarity with Infrastructure as Code tools (e.g., Terraform, Bicep) and DevSecOps principles.

Explore the rewards and benefits that help you thrive – at every stage of your life and your career. Enjoy competitive salaries, employee rewards and a brilliant range of benefits you can tailor to suit your own health, wellbeing, financial and lifestyle choices. Make the most of a myriad of opportunities for training and professional development to grow your skills and expertise. And combine our hybrid working culture and flexible holiday allowances to balance a great job and fulfilling personal life.

Be rewarded. Find out more.

We're AtkinsRéalis, a world-class engineering services and nuclear organization. We connect people, data and technology to transform the world's infrastructure and energy systems. Together, with our industry partners and clients, and our global team of consultants, designers, engineers and project managers, we can change the world. We're committed to leading our clients across our various end markets to engineer a better future for our planet and its people.

Find out more.

Security clearance

This role may require security clearance and offers of employment will be dependent on obtaining the relevant level of clearance. If this is necessary, it will be discussed with you at interview. The vetting process is delivered by United Kingdom Security Vetting (UKSV) and may require candidates to provide proof of residency in the UK of 5 years or longer. If applying to this role please do not make reference to (in conversation) or include in your application or CV, details of any current or previously held security clearance.

We are committed to creating a culture where everyone feels that they belong - a place where we can all be ourselves, thrive and develop to be the best we can be. So, we offer a range of family friendly, inclusive employment policies, flexible working arrangements and employee resource groups to support all employees. As an Equal Opportunities Employer, we value applications from all backgrounds, cultures and ability.

At AtkinsRéalis, we seek to hire individuals with diverse characteristics, backgrounds and perspectives. We strongly believe that world-class talent makes no distinctions based on gender, ethnic or national origin, sexual identity and orientation, age, religion or disability, but enriches itself through these differences.