Senior Full Stack Software Engineer

Holt Executive; Wytham; On-site; GBP 65,000 - 85,000; Full time

Job summary

A leading engineering firm in the UK is seeking a Senior Full Stack Software Engineer to develop mission-critical software for space missions. You will design and maintain scalable systems, collaborate in Agile teams, and lead the implementation of features. Ideal candidates have over 5 years’ experience in high-reliability environments and proficiency in modern programming languages. The role offers a hybrid work model with excellent benefits including relocation support.

Benefits

Flexible working hours

25 days’ annual leave + 8 bank holidays

Private healthcare

Relocation assistance

Qualifications

• 5+ years’ experience developing mission-critical software in the space or similar high-reliability industries.
• Proven full-stack development background.
• Extensive experience building front-end applications with frameworks such as React.

Responsibilities

• Design, develop, and maintain scalable back-end services using modern programming languages.
• Lead and contribute to Agile/SCRUM processes including sprint planning.

Skills

Object-oriented programming (Java, Python, or C++)

Full-stack development

Front-end frameworks (React)

Problem-solving skills

Education

Bachelor’s degree in Computer Science, Engineering, or related discipline

Tools

Docker

Kubernetes

CI/CD tools (GitLab CI or GitHub Actions)

SQL databases

Job description

An exciting opportunity has arisen for a Senior Full Stack Software Engineer to join a high-performing Ground Segment Software team developing advanced mission-control solutions for cutting-edge space missions. You'll play a key role in designing, building, and maintaining mission-critical software systems that enable satellite operations and support a new generation of space sustainability projects. This is a hands‑on, technically challenging role ideal for someone who thrives in complex, high‑impact environments, whether from the space, defence, aviation, telecoms, or automotive sectors.

For this role we can consider visa sponsorship and relocation support.

What You’ll Do

• Design, develop, and maintain scalable, high‑performance back‑end services using modern programming languages.
• Architect and build responsive, interactive front‑end applications using modern frameworks.
• Design, optimise, and manage databases for reliability and performance.
• Build and manage containerised applications using Docker and Kubernetes.
• Develop and maintain CI/CD pipelines to streamline software delivery.
• Collaborate with cross‑functional teams to define, design, and implement new features.
• Troubleshoot complex issues across the stack, applying strong problem‑solving skills.
• Lead and contribute to Agile/SCRUM processes including sprint planning and retrospectives.

What You’ll Bring

• Bachelor’s degree in Computer Science, Engineering, or a related discipline (or equivalent experience).
• 5+ years’ experience developing mission‑critical software in the space or similar high‑reliability industries.
• Proven full‑stack development background.
• Strong proficiency in object‑oriented programming (Java, Python, or C++).
• Extensive experience building front‑end applications with frameworks such as React.

Desirable Skills

• Hands‑on experience with Docker, Kubernetes, or Docker Compose.
• Experience with CI/CD tools such as GitLab CI or GitHub Actions.
• Strong command of SQL databases, data management, and Git‑based workflows.
• Experience in Agile/SCRUM environments.
• Familiarity with CCSDS or ECSS communications standards.
• Understanding of Ground Segment systems and mission operations.
• Experience with AWS or Azure cloud platforms.
• Awareness of software security best practices and coding standards.

What’s on Offer

• Opportunity to work with a talented, diverse, and international engineering team.
• Flexible working around core hours in a collaborative, supportive environment.
• Hybrid working model with an optional 9/75 compressed schedule.
• 25 days’ annual leave (increasing with service) + 8 bank holidays.
• Private healthcare, life insurance, and long‑term sick pay.
• Relocation assistance and visa sponsorship (where applicable).
• Modern office and cleanroom facilities.
• Regular social and professional development events.

If you’re passionate about software engineering and eager to help build the systems powering next‑generation space missions, this is a fantastic opportunity to make a real impact.