Software Engineer at SiXworks — Cheltenham, GBR | Base Career

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Work On Technology That Protects What Matters

At SiXworks , we build secure digital solutions that support Defence and National Security missions .

Our teams work on complex problems where reliability, security, and speed of innovation matter.

We’re looking for a Software Engineer who enjoys solving difficult technical challenges and wants their work to have real operational impact.

This role requires occasional visits to Herefordshire

What You’ll Do

As a Software Engineer , you’ll help design, build, and deliver secure digital solutions in highly secure environments.

You’ll work alongside engineers, architects, and delivery specialists to develop technology that enables faster, safer decision-making for critical operations.

Your work may include:

Collaborate with the development team to design, develop, and maintain software solutions.
Develop reliable applications in Kotlin Jetpack Compose for Android.
Utilise GIT for version control, ensuring efficient code management and collaboration.
Design and implement backend solutions using either Rust, Python, or Go, ensuring robustness and scalability (e.g. writing web APIs)
Utilise Docker for containerisation to streamline deployment processes and ensure consistency across environments.
Implement and maintain CI/CD pipelines to automate software delivery and deployment.
Write clean, efficient, and well-documented code following industry best practices.
Participate in code reviews, providing constructive feedback to team members.
Stay updated with the latest technologies, trends, and best practices in software development.

What We’re Looking For

We value people who take ownership, think critically, and enjoy working as part of a collaborative team tackling complex challenges.

Our culture is guided by six principles: Agility, Security, Innovation, Quality, Collaboration and Inclusivity our North Star for how we work.

SiXworks is a leading provider of secure digital solutions, specialising in digital experimentation and focused on fail-safe-fast cutting-edge technology solutions deployed in highly secure environments.

As an end-to-end digital innovation and delivery partner, we turn complex challenges into mission-critical digital advantages.

This is a thrilling time for us, with ambitious plans for growth.

We are looking for brilliant, experienced, driven and self-motivated people to join the team on our journey.

We offer competitive salaries and a package that supports your wellbeing and development, including 25 days annual leave + bank holidays, free Private Medical cover and Life Assurance, Generous pension (10% employer, 5% employee contribution), Bonus and Professional development and training support.

In addition to secure parking, gym, café & restaurant on site and lots of open break out spaces.

A word on UK Security Clearance

Due to the secure nature of the position and working environment, you must have or be eligible to obtain Security Clearance.

More details relating to UK Security Clearance can be found here:

United Kingdom Security Vetting: clearance levels - GOV.UK (www.gov.uk)

Interested?

Please apply!

Software Engineer

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