Addition
Senior Network Engineer
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Senior Network Engineer
Start Date: ASAP
Permanent | Competitive Salary + Excellent Benefits
Location: Farnborough (On-site)
We're partnering with an innovative organisation delivering secure, mission-critical technology across the Defence and National Security sector to recruit an experienced Network Engineer.
This is an exciting opportunity to join a highly skilled engineering team working on cutting-edge cloud and networking technologies that support critical operational environments. You'll play a key role in designing, maintaining and optimising secure network infrastructure, helping to deliver resilient platforms that make a genuine real-world impact.
The Opportunity
As a Network Engineer, you'll work across cloud-native infrastructure and platform networking, supporting both traditional networking technologies and software-defined networking within Kubernetes environments.
This is a technically challenging role where you'll be responsible for maintaining secure, high-performing network platforms, improving reliability through automation and ensuring cloud-hosted services remain resilient and secure. You'll collaborate with multidisciplinary engineering teams while contributing to the continuous evolution of modern, mission-critical infrastructure.
You'll also participate in an on-call rota to support the timely resolution of operational incidents.
Key Responsibilities
You'll play a key role in supporting secure cloud platforms by:
- Designing, implementing and supporting secure cloud platform network infrastructure.
- Maintaining, troubleshooting and optimising networking across Kubernetes environments.
- Supporting cross-cluster communications within highly secure, air-gapped environments.
- Improving network reliability, security and performance through automation and continuous optimisation.
- Implementing infrastructure improvements that enhance scalability and operational resilience.
- Collaborating with engineering teams to support cloud-native applications and platform services.
- Supporting incident response and participating in an on-call rotation.
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About You
We're looking for an experienced Network Engineer with a strong technical background, excellent troubleshooting skills and a passion for delivering secure, reliable infrastructure within complex environments.
You'll also have:
- Experience designing, implementing and supporting secure enterprise network environments.
- 3–5 years' experience working with IP networking, multi-tenant WANs, Layer 2–7 networking and Border Gateway Protocol (BGP).
- Experience administering Linux systems and/or Kubernetes platforms.
- Knowledge of Kubernetes networking, including Container Network Interface (CNI) technologies such as Cilium and Service Mesh technologies such as Istio.
- Experience with MPLS Layer 3 VPNs or cloud-native networking technologies.
- Hands-on experience deploying and supporting production workloads within Kubernetes.
- Experience using automation tools such as Git, Bash or Python to improve operational efficiency.
- Strong analytical, problem-solving and communication skills.
- A collaborative approach with a genuine passion for continuous improvement and emerging technologies.
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Why Apply?
This is an excellent opportunity to join a forward-thinking organisation at the forefront of secure digital innovation, working on technology that supports some of the UK's most important Defence and National Security programmes.
In return, you'll benefit from:
- Competitive salary.
- Annual bonus.
- 25 days annual leave plus bank holidays.
- Private Medical Insurance.
- Life Assurance.
- Generous pension scheme (10% employer contribution).
- Professional training and career development support.
- On-site gym, café, restaurant and secure parking.
- A collaborative, inclusive and innovation-focused working environment.
Security Clearance
Due to the nature of this role, applicants must hold active UK Security Clearance (SC) or be eligible to obtain Security Clearance.
We are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, colour, origin, gender, sexual orientation, or disability status.
By applying you are confirming you are happy to be added to the Addition Solutions mailing list regarding future suitable positions. You can opt out of this at any time simply by contacting one of our consultants.
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