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Software Architect

Confidential

Farnborough Hybrid permanent

Posted: March 24, 2026

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Quick Summary

Transforming software systems is my passion, and I'm excited about the opportunity to work with a talented team to deliver innovative solutions.

Job Description

About the job

We currently have an exciting opportunity for a  Software Architect to join our existing experienced team.

 

What do we look for in a Software Architect?

We are seeking a motivated Software Architect with a proactive approach to collaboration and a desire to contribute to team goals and adapt to a fast-changing environment.

 

Responsibilities:

Proactively collaborate with Solutions Architects, Project Managers and other stakeholders to quickly understand project goals.

Develop a comprehensive understanding of the project vision and requirements, including functional and non-functional requirements, performance requirements, disaster recovery etc.

Utilize suitable methodologies and existing tools for effective analysis and design.

Develop and maintain SW architectures for responsive front-end SW and robust, scalable back-end SW.

Collaborate with the development team to present the SW architecture to stakeholders and support the design, development and maintenance of software solutions.

Gain stakeholder agreement on Analysis and Design at each stage in the development process.

Produce documentation and other artefacts and perform all other activities in accordance with the SW Engineering SDLC Process, e.g. conducting effective design sessions, code reviews and defect management activities.

Assist development teams with writing of user stories and acceptance criteria.

Interface with other tech functions (Test, Infrastructure, Platform, Site Reliability).

 

Required skills:

Bachelor's degree in Computer Science, Engineering or related field.

Extensive (5+ years) professional experience of working as a Software Engineer or Architect.

Solid understanding of software development principles, algorithms and data structures.

Experience in PlantUML (C4) or similar.

Markdown for documentation.

Security principles and best practices.

Experience of working to a vision rather than comprehensive requirements, and changing direction quickly according to stakeholder feedback.

Familiarity with Agile development methodologies and DevSecOps.

Strong communication and collaboration abilities within a team environment, including written and verbal communication and remote collaboration.

Ability to compare different languages and technologies to contribute to selection discussions.

Ability to adapt to a fast-paced, dynamic work environment and learn new technologies quickly.

Experience working in multidisciplinary teams, communicating with a variety of stakeholders and understanding their requirements.

 

Desired skills:

Experience with Kubernetes.

Experience working in the Defence or National Security industries.

 

About SiXworks

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. We are unified in our mission to accelerate innovation and adoption of secure, digital technology to improve the operational agility of Defence and National Security. This is an exciting time for us, we have ambitious plans for continued growth and development, and we are seeking to add brilliant, experienced, motivated, and passionate people to our team to work with us on this journey.

 

Why join SiXworks?

Our team is a fusion of brilliance, featuring senior operational, technical, and business leaders from various industries and the armed forces. We're also powered by a league of extraordinary IT engineers, architects, developers, and project managers. Together, we're an unstoppable force of digital innovation!

SiXworks’ expertise includes Secure-by-Design, cloud computing, advanced network and infrastructure design, rapid application development, cross-security domain systems, multi-tenanted High-Performance Compute, multi-source data platforms, cyber vulnerability mitigation, and intelligence systems. We provide supplier-agnostic, technical, and business consultancy to customers while championing open-source and best-of-breed technologies.

 

What can we offer in return? 

SiXworks offers a unique work culture around our core principles Agility, Security, Innovation, Quality, Collaboration and Inclusivity. 

 

Together, these six principles form SiXworks' NORTH STAR, guiding the organisation towards success. This is reflected in the raft of benefits available to all our employees. 

 

In addition to a competitive salary below are some of our benefits: 

25 days annual leave + bank holidays. 

Private Medical Insurance. 

Life Assurance Scheme 

Pension scheme

Professional Development opportunities.

Cycle to Work scheme. 

Perks at Work scheme. 

Discretionary Bonus scheme.   

 

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)
 

SiXworks is an IBM subsidiary which has been acquired by IBM and will be integrated into the IBM organisation. SiXworks will be the hiring entity.  By proceeding with this application, you understand that SiXworks will share your personal information with other IBM subsidiaries involved in your recruitment process, wherever these are located. More Information on how IBM protects your personal information, including the safeguards in case of cross-border data transfer, are available here: https://www.ibm.com/privacy

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