Senior Network Engineer

Cegal; Greater London; Hybrid; GBP 60,000 - 80,000; Full time

Job summary

A leading technology partner in the energy sector is seeking a Senior Network Engineer to enhance their global Operations team. This role focuses on the design, configuration, and implementation of network solutions, providing a unique opportunity to solve complex challenges with cutting-edge technology. Ideal candidates will possess extensive experience in network and infrastructure, particularly with Cisco Routing/Switching, network security protocols, and customer support. Join a dynamic team dedicated to making a difference in the digital transition of the energy sector.

Benefits

Career development programs

Flexible work environment

Training budget

Support for diversity initiatives

Qualifications

• Experience with operation and maintenance of complex network components.
• In-depth knowledge of Cisco Routing/Switching.
• Expertise in network security protocols.

Responsibilities

• Responsible for the design, configuration, and implementation of network solutions.
• Operation of network components - patching, configuration, and troubleshooting.
• Collaboration with third-party vendors and mentoring junior team members.

Skills

Experience with complex network components

Knowledge of Cisco Routing/Switching

Routing protocols (OSPF, BGP)

Network security protocols

Checkpoint firewalls administration

Network monitoring tools (Zabbix, NetFlow)

3rd line Customer Support

802.1x client authentication

Education

Advanced certifications (e.g., CCNP)

Tools

Checkpoint firewalls

Cisco ISE

Job description

Senior Network Engineer

We’re growing to become a leading technology partner of the global energy sector. Uniquely combining both technology expertise and domain knowledge, we are at the heart of the sector’s digitalisation journey, and an enabler of the green transition - and we’re just getting started.

As part of our growth strategy we’re looking for Senior Network Engineers to further strengthen our global Operations team. If you thrive on cutting‑edge technology, love solving complex challenges, and want to help customers succeed by implementing smart, future‑ready network solutions then this could be the role for you.

About the Role

As a Network Engineer, you will be responsible for the configuration and maintenance of routers, switches, firewalls, and Wireless for our global customers in the energy sector. Due to our global reach and the rapidly evolving nature of our sector you will get to work on diverse tasks, including handling both custom and standardised solutions. Most of the time, you will work as part of a team; however, there may be smaller projects that you complete alone but you will always have the team to support.

You’ll be join a vibrant and knowledgeable group of network specialists that designs, configures, and implements network solutions for both new and existing customers. Whether working on private, public, or hybrid cloud solutions for offshore and onshore clients, your role will have a real impact from day one.

A significant part of your role involves collaborating with third‑party vendors, customers, and colleagues, and mentoring junior team members.

As our Network Engineer, you will be responsible for:

• The design, configuration, and implementation of network solutions.
• Operation of network components - patching, configuration and troubleshooting, monitoring, and design.
• Operation of security components within LAN/WLAN (Cisco WLC), such as certificates, identification solutions (Cisco ISE).
• Troubleshooting and implementation of LAN, WAN, WLAN, VPN firewalls, etc.
• 3rd line Customer Support.
• 802.1x client authentication – wired/wireless.

Who you are?

We are looking for a motivated colleague with extensive experience within network and infrastructure. To thrive in our team you should have a high level of accountability, good collaboration skills, and share our interest in continuous learning and improvement. To meet our technical requirements you should bring:

• Experience with operation and maintenance of complex network components - patching, configuration, monitoring and troubleshooting.
• In‑depth knowledge of Cisco Routing/Switching, configuration and maintenance.
• In‑depth knowledge of routing protocols such as OSPF, BGP as well as switching technologies.
• Expertise in network security protocols and practices, including firewalls, VPNs, VPN deliveries (IP‑VPN, SSL‑VPN, IPSEC‑VPN) and intrusion detection/prevention systems.
• Experience with configuration and administration of Checkpoint firewalls, Cisco routing and switching. Cisco ISE.
• Vendor‑specific knowledge of Cisco and Check Point, ideally with advanced certifications (CCNP etc). Additional Juniper and Palo Alto exposure would be beneficial.
• Understanding of wireless networking standards and technologies.
• Proficiency with network monitoring tools such as Zabbix and NetFlow.
• Experience with operation of security components within LAN/WLAN (Cisco WLC), such as certificates, identity solutions (Cisco ISE).
• Experience with 3rd line Customer Support.
• Experience with 802.1x client authentication – wired/wireless.

If we’re lucky, you also have experience with:

• Solution Design, Architecture.
• Automating network tasks and improving efficiency.
• Working with Rigs/Vessels.
• Experience with the Oil/Gas/Energy Sector.

Why Cegal?

Because at Cegal –You matter. Both because of who you are and the impact you make! You can feel confident bringing your whole self to work and certain that your ideas, decisions and actions will make a meaningful difference to your colleagues around you, the solutions we deliver and the clients we serve.

You take pride in beingaccountable,and so do we. By focusing on what we accomplish, not just the tasks we do, communicating early and openly, and by presenting for solutions, not problems. In the end that’s how we turn complexity into digital success stories and what beingFuss Fightersis all about.

As tech and energy sectors are rapidly evolving, your ability to beproactiveandinnovativewill be tested and valued. You’ll help us stay ahead by anticipating needs, exploring new technologies, and taking initiative before challenges arise - driving progress rather than reacting to it.

We can also offer:

• Career development – Advance your career with trainee programmes, mentorship, growth dialogue.
• Impact – Ideal company size – global impact, yet stand out and make a difference.
• Professional growth – Benefit from a training budget and dedicated time for learning and growth, while enjoying access to digital courses and our very own certification centre.
• Balance – Enjoy a supportive and flexible work environment that enables you thrive both professionally and personally.
• Diversity – Support diversity in the tech industry through our Diversity at Cegal initiative, Women at Cegal network or our platinum partnership with the Oda Network.

Want to join our adventure? Apply today.

Location

Location: Sweden, Norway or UK. You will be part of an established team already working across multiple geographies.

Questions?

Questions? Contact the hiring manager Shahid Qayyum ([phone]) or Talent Acquisition Specialist Joachim Croft Guslund ([phone])

This is a direct Company recruitment. We will not accept applications or candidates via employment agencies. As a candidate you will need to have a valid working visa for the location to which you apply. Cegal does not sponsor visas. Finalist candidates will be asked to consent to a background check according to our security routines. We will ask all candidates to disclose potential ties to high‑risk and sanctioned countries.