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Network Engineer - Active UK Government Security Clearance Required

Location: UK - Hybrid / customer-site requirements TBC

Contract: Permanent, Full-time

Package: £65,000 - £75,000 + 10% Bonus + 10% Shares + Benefits

About Appvia

Appvia is a specialist cloud, platform, and solutions engineering consultancy, helping organisations modernise infrastructure, improve reliability, and adopt cloud-native practices that enable long-term, sustainable delivery.

Our engineering capability spans AWS, Azure, platform engineering, networking, software, data, AI, delivery, and managed services.

We work across complex, high-impact environments in both the public and private sector, delivering solutions where security, resilience, scalability, and operational excellence are critical.

About the Role

We’re hiring a Network Engineer to join Appvia on a new secure public sector engagement focused on live network operations, support, and continuous improvement.

This is a hands-on role where you’ll support and maintain complex network infrastructure, troubleshoot incidents, implement changes, and help improve the reliability and performance of critical services.

The engagement is more operational and managed-service focused than many of Appvia’s traditional platform engineering projects, but you’ll also have the opportunity to broaden your cloud, automation, and platform engineering skills over time as part of your progression within Appvia.

Interview Process - 3 Stage

• Discovery conversation with Talent Acquisition
• Technical Interview with Engineering Team
• Final Interview with Leadership

Important

You must hold active UK Security Clearance (SC). NPPV3 clearance is highly desirable.

Requirements

About You

You are a hands-on Network Engineer comfortable supporting complex, high-availability environments and working through technical issues in a structured and methodical way.

You will bring:

• Strong experience supporting enterprise network environments
• Good knowledge of routing and switching technologies
• Experience with Cisco networking technologies
• Experience with firewalls, VPNs, NAT, ACLs, and secure connectivity
• Strong troubleshooting and incident-resolution skills
• Understanding of resilient and highly available network design
• Experience working in live service, operational, or managed-service environments
• Clear communication skills and confidence working with technical teams and stakeholders
• A proactive, customer-focused approach
• Active UK SC clearance

Responsibilities

• Support and maintain production network infrastructure across secure environments
• Troubleshoot network incidents, connectivity issues, and performance problems
• Implement planned network changes safely and effectively
• Support routing, switching, firewalling, VPN, and load-balancing technologies
• Contribute to network upgrades, migrations, optimisation, and continuous improvement
• Monitor network health and performance using observability and monitoring tooling
• Participate in root-cause analysis and problem management
• Maintain technical documentation, configuration records, and operational procedures
• Collaborate with engineering, service management, and customer teams
• Identify opportunities to improve automation, reliability, resilience, and security

Technical Skills

Core technologies / experience:

• Cisco networking
• BGP / OSPF
• VLANs / VRFs
• MPLS
• Firewalls such as Palo Alto or Check Point
• VPN / IPSec
• Load balancing
• Network monitoring and observability
• Enterprise networking in production environments

Nice to have:

• Cisco ACI / Nexus
• Cisco SD-WAN / SDA
• AWS networking - VPC, Transit Gateway, Route 53
• Azure networking - VNets, ExpressRoute, Azure Firewall
• F5 Big-IP
• Splunk, SolarWinds, or NetBox
• Python, Ansible, or Terraform
• CCNA / CCNP or equivalent certification
• NPPV3 clearance

Benefits

Why join Appvia?

We are a self-funded, London based startup; providing businesses with a fast and secure way to deploy containerised applications into the cloud.

We are on a mission to enable organisations to make cloud-based software delivery simple and efficient, whilst having the insights into costs, security and cadence. As a company that holds customers at the heart of everything we do, we are looking for candidates that want to make a real change to how Dev and Ops is working in the industry.

With us our customers, like the UK’s Home Office & Bank of England, are harnessing cloud-native technologies, limiting the challenges of infrastructure management and rapidly delivering digital products.

What’s on offer?

• ️ Work-life balance

• Flexible working with core hours of 10-4pm because we know life happens outside of work
• Hybrid working - only one compulsory office day per month
• 25 days’ holiday a year, plus bank holidays
• An additional day off for your birthday
• Enhanced maternity and paternity to full pay
• Workplace Nursery Benefit to help working parents

For your well-being

• Full Private Healthcare cover for you with partners and children covered 50%
• Death in Service
• Cycle to Work scheme
• Electric Car Scheme
• Pension plus a salary sacrifice option for even greater savings
• Employee Assistance Programme
• Free hygiene products available in the London office

Mental health support

• Free therapy through AXA
• Access to the Headspace App
• Trained Mental Health First Aiders

Other fun perks

• Learning budget of £1,000 a year
• Your own MacBook Pro while you work at Appvia
• Dog friendly office
• Wear what makes you comfortable
• Free snacks in the office
• Regular team socials, board game nights, industry meetups and more!
• Pool table & ping pong table

But don’t just take our word for it, you can check out what our Appvians say about us on Glassdoor and by following us on LinkedIn, Twitter and TikTok.

We are proud to be an equal opportunities employer and actively encourage, respect, and recognise diversity of thought and background throughout the business. All applicants will be considered for employment without attention to age, ethnicity, religion, sex, sexual orientation, gender identity, family or parental status, national origin, or veteran, neurodiversity, and disability status.

Note: While all roles are active and approved at the time of posting, the dynamic nature of our start-up means some applications may be processed to pipeline talent for future opportunities rather than current openings. We will strive to keep you informed of any changes to the status of your application.