Senior Network Engineer

Company Description
Technology is our how. And people are our why. For over two decades, we have been harnessing technology to drive meaningful change.

By combining world-class engineering, industry expertise and a people-centric mindset, we consult and partner with leading brands from various industries to create dynamic platforms and intelligent digital experiences that drive innovation and transform businesses.

From prototype to real-world impact - be part of a global shift by doing work that matters.

Job Description
Position Overview
We are seeking an experienced
Senior Network Engineer
to design, implement, support, and optimize complex enterprise network infrastructures. The ideal candidate will have deep expertise in routing protocols (BGP, OSPF, EIGRP), firewalls (FortiGate, Cisco ASA), load-balancing technologies (F5), and DNS services. This role involves project leadership, advanced troubleshooting, architecture planning, and ensuring high levels of network availability, security, and performance.

Key Responsibilities
Network Architecture & Engineering

• Design, implement, and maintain enterprise network architectures including LAN, WAN, and data center environments.
• Develop scalable routing strategies using BGP, OSPF, and EIGRP across multi-site and multi-carrier topologies.
• Engineer load-balancing solutions using F5 BIG-IP including LTM, GTM, and iRules configurations.
• Plan and execute network upgrades, migrations, and integrations in alignment with organizational objectives.

Security & Firewalls

• Manage and administer Fortinet FortiGate firewalls including security policies, VPNs, routing, and UTM features.
• Maintain and troubleshoot Cisco ASA firewalls including ACLs, NAT, site-to-site/remote-access VPNs, and failover configurations.
• Participate in security architecture reviews and implement network security best practices.

Operations & Troubleshooting

• Provide advanced support for complex network incidents, root cause analysis, and performance optimization.
• Maintain, document, and improve network configuration standards, topology diagrams, runbooks, and procedures.

DNS & Infrastructure Services

• Manage and support enterprise DNS, DHCP, and IPAM systems (e.g., Infoblox, Microsoft DNS).
• Implement DNS infrastructure best practices for availability, performance, and security.

Cross-Functional & Project Work

• Collaborate with security, systems, cloud, and application teams to support business requirements.
• Serve as a subject matter expert for network technologies during project planning.
• Lead infrastructure-related initiatives, including new deployments, DR planning, and network redesigns.

Qualifications
Required Qualifications

• 7+ years of hands-on network engineering experience in medium-to-large enterprise environments.
• Expert-level knowledge of BGP, OSPF, and EIGRP.
• Strong experience with FortiGate and Cisco ASA firewalls.
• Solid knowledge of F5 BIG-IP load balancers (LTM required; GTM/DNS a plus).
• Proficiency with DNS, DHCP, and IP addressing fundamentals.
• Ability to diagnose complex network problems using packet captures and diagnostic tools.
• Solid understanding of network security, segmentation, and best practices.
• Experience with high availability, redundancy protocols (HSRP/VRRP), and WAN architectures.

Preferred Qualifications

• Professional certifications such as CCNP
• Familiarity with cloud networking (AWS, Azure, GCP).
• Experience with infrastructure monitoring tools (SolarWinds, Nagios.).

Soft Skills

• Strong analytical and problem-solving skills.
• Excellent communication and documentation abilities.
• Ability to work independently and mentor junior team members.
• Strong organizational and project management skills.

Additional Information

Discover some of the global benefits that empower our people to become the best version of themselves:

• Finance:

Competitive salary package, share plan, company performance bonuses, value-based recognition awards, referral bonus;
- Career Development:

Career coaching, global career opportunities, non-linear career paths, internal development programmes for management and technical leadership;
- Learning Opportunities:

Complex projects, rotations, internal tech communities, training, certifications, coaching, online learning platforms subscriptions, pass-it-on sessions, workshops, conferences;
- Work-Life Balance:

Hybrid work and flexible working hours, employee assistance programme;
- Health:

Global internal wellbeing programme, access to wellbeing apps;
- Community:

Global internal tech communities, hobby clubs and interest groups, inclusion and diversity programmes, events and celebrations.

Our diversity makes us stronger - it drives meaningful change and enables us to build innovative technology solutions. We are committed to creating an inclusive community where all of us, regardless of background, identity, or personal characteristics, feels valued, respected, and free from discrimination. As an equal opportunity employer, we welcome applications from all individuals and base hiring decisions on merit, skills, qualifications, and potential.

At Endava, we're committed to creating an open, inclusive, and respectful environment where everyone feels safe, valued, and empowered to be their best. We welcome applications from people of all backgrounds, experiences, and perspectives—because we know that inclusive teams help us deliver smarter, more innovative solutions for our customers. Hiring decisions are based on merit, skills, qualifications, and potential. If you need adjustments or support during the recruitment process, please let us know.