At a Glance
- Tasks: Design and deliver secure digital solutions in highly secure environments.
- Company: Join SiXworks, a leader in secure digital innovation for Defence and National Security.
- Benefits: Competitive salary, collaborative culture, and opportunities for professional growth.
- Other info: Work in a dynamic environment with a focus on agility and innovation.
- Why this job: Make a real impact on critical operations with cutting-edge technology.
- Qualifications: Experience in infrastructure, networking, and security principles.
The predicted salary is between 45000 - 60000 € 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 Test Infrastructure Engineer who enjoys solving difficult technical challenges and wants their work to have real operational impact. This role is on site 5 days a week in Somerset.
What You’ll Do
As a QA Test Infrastructure 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:
- Ensuring quality of products as they move from prototype / proof of concept into Production.
- Analyse infrastructure requirements and architectures; identify test conditions; maintain traceability; log risks.
- Create infrastructure-focused test strategies and plans defining scope, environments, tooling, automation, and governance entry/exit criteria.
- Provision and validate test environments in collaboration with DevSecOps, ensuring OS, network, platform services, monitoring, and pipelines align to readiness standards.
- Design and execute tests across physical infrastructure and IaC, including functional, integration, regression, resilience, non‑functional, and security‑related scenarios.
- Apply Secure‑by‑Design principles; support security testing; contribute to accreditation, assurance, and compliance documentation.
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. You don’t need to tick every box, but we’re particularly interested in people with skills/experience in:
- 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).
- Infrastructure as Code (IaC)
- 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.
- CI/CD & Automation
- Familiarity with CI/CD tooling (Jenkins, GitLab CI, GitHub Actions).
- Experience integrating IaC validation and environment checks into automated pipelines.
- Understanding of pipeline gating, automated readiness checks, and environment orchestration.
- Security & Compliance
- Strong grounding in Secure‑by‑Design principles, IAM, least privilege, OS hardening, network segmentation, and observability.
- Experience within regulated or highly governed environments (e.g., MOD or similar).
- Ability to support compliance, assurance, and accreditation activity.
Just as important are curiosity, strong problem solving ability, and the motivation to continuously improve how technology is designed and delivered.
About SiXworks
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.
Why Join Us
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.
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.
QA Test Infrastructure Engineer employer: SiXworks an IBM company
At SiXworks, we pride ourselves on being an exceptional employer, offering a dynamic work culture that fosters collaboration and innovation in the heart of Somerset. Our commitment to employee growth is evident through our focus on continuous improvement and professional development, ensuring that our team members are equipped to tackle complex challenges in secure digital solutions for Defence and National Security. With a strong emphasis on agility, security, and inclusivity, we provide a rewarding environment where your contributions have a real operational impact.
StudySmarter Expert Advice🤫
We think this is how you could land QA Test Infrastructure Engineer
✨Tip Number 1
Network like a pro! Attend industry meetups, tech conferences, or even local events. Chatting with folks in the field can lead to opportunities that aren’t even advertised yet.
✨Tip Number 2
Show off your skills! Create a portfolio or GitHub repository showcasing your projects and contributions. This gives potential employers a taste of what you can do and how you tackle challenges.
✨Tip Number 3
Prepare for interviews by practising common technical questions and scenarios related to QA and infrastructure. Mock interviews with friends or mentors can help you feel more confident and ready.
✨Tip Number 4
Don’t forget to apply through our website! It’s the best way to ensure your application gets seen by the right people. Plus, it shows you’re genuinely interested in joining our team at SiXworks.
We think you need these skills to ace QA Test Infrastructure Engineer
Some tips for your application 🫡
Tailor Your Application:Make sure to customise your CV and cover letter to highlight your relevant skills and experiences that match the job description. We want to see how your background aligns with our mission at SiXworks!
Showcase Your Technical Skills:Don’t hold back on detailing your technical expertise, especially in areas like Infrastructure as Code, CI/CD, and security principles. We’re looking for someone who can tackle complex challenges, so let us know how you’ve done this in the past.
Be Clear and Concise:When writing your application, keep it straightforward and to the point. Use bullet points where possible to make it easy for us to see your qualifications at a glance. We appreciate clarity!
Apply Through Our Website:We encourage you to submit your application through our website. It’s the best way for us to receive your details and ensures you’re considered for the role. Plus, it’s super easy!
How to prepare for a job interview at SiXworks an IBM company
✨Know Your Tech Inside Out
Make sure you brush up on your knowledge of TCP/IP, DNS, and other networking fundamentals. Be ready to discuss how you've applied these concepts in real-world scenarios, especially in relation to infrastructure setup and troubleshooting.
✨Showcase Your IaC Skills
Be prepared to talk about your experience with Infrastructure as Code tools like Terraform and Ansible. Have examples ready that demonstrate how you've written HCL, built playbooks, or managed Kubernetes clusters, as this will show your hands-on expertise.
✨Emphasise Security Awareness
Since the role involves working in secure environments, highlight your understanding of Secure-by-Design principles. Discuss any past experiences where you contributed to compliance or security testing, as this will resonate well with the interviewers.
✨Demonstrate Problem-Solving Skills
Prepare to tackle some technical challenges during the interview. Think through how you approach problem-solving and be ready to share specific examples of complex issues you've resolved, particularly in collaborative settings.
