At a Glance
- Tasks: Ensure quality and security of digital solutions for Defence and National Security.
- Company: SiXworks, a leader in secure digital innovation.
- Benefits: Competitive salary, 25 days leave, private medical cover, and professional development.
- Other info: Collaborative culture with opportunities for growth and innovation.
- Why this job: Make a real impact on national security with cutting-edge technology.
- Qualifications: Experience in QA testing, Agile, and cloud environments.
The predicted salary is between 63000 - 77000 £ per year.
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 QA Infrastructure Test Engineer who enjoys solving difficult technical challenges and wants their work to have real operational impact. As a QA Infrastructure Test Engineer, you’ll help ensure the quality, reliability, and security of physical and Infrastructure‑as‑Code (IaC)‑based platforms across SiXworks delivery teams by applying the SiXworks STLC and Shift‑Left principles throughout requirements, planning, design, environment provisioning, execution, and closure.
- Log risks.
- Provision and validate test environments in collaboration with DevSecOps, ensuring OS, network, platform services, monitoring, and pipelines align to readiness standards.
- Support security testing; Proven experience in all phases of the STLC: requirement analysis, test planning, design, environment setup, execution, reporting and closure.
- Experience with traceability, risk-based testing, defect lifecycle management, gating, and evidence‑led testing.
- Familiarity with Secure by Design principles and MOD testing standards.
- Experience with Agile, DevOps, and CI/CD environments.
- Integration with issue management systems (Jira/Azure DevOps).
- Certifications such as ISTQB (International Software Testing Qualifications Board), TOGAF, or equivalent is desirable.
Infrastructure, Networking & Operating Systems:
- Strong understanding of TCP/IP, DNS, DHCP, routing, switching, firewalls, VLANs, and related network behaviours.
- Experience with physical infrastructure setup and troubleshooting (routers, switches, cabling).
- Proficiency with Linux/Unix command line for diagnostics, configuration, and validation.
- Experience working across virtualisation platforms (VMware, VirtualBox) and cloud environments (AWS, Azure, GCP).
- Experience of active directory or Microsoft application suite such as SharePoint & Exchange.
- Terraform: writing/validating HCL, managing state, using modules.
- Ansible: building playbooks/roles, inventories, and validating idempotency.
- Kubernetes: deploying workloads, validating manifests, managing clusters, and testing containerised applications.
- Strong grounding in Secure‑by‑Design principles, IAM, least privilege, OS hardening, network segmentation, and observability.
SiXworks is a specialist digital innovation partner delivering secure, mission-critical technology to Defence and National Security organisations. We focus on digital experimentation, secure-by-design architecture, cloud technologies, and rapid application development to help our customers move faster and stay ahead of evolving challenges.
Our team combines expertise from across technology, business, and operational backgrounds including the armed forces creating a collaborative environment where practical thinking and innovation thrive. Agility, Security, Innovation, Quality, Collaboration and Inclusivity are 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.
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.
Web QA Tester employer: Sixworks
At SiXworks, we pride ourselves on being an exceptional employer, offering a dynamic work culture that fosters collaboration and innovation in the Defence and National Security sector. Our commitment to employee growth is reflected in our comprehensive benefits package, which includes competitive salaries, generous leave, and professional development opportunities, all within a supportive environment that values agility, security, and inclusivity. Join us to make a meaningful impact while enjoying unique perks like on-site amenities and a focus on wellbeing.
