Network Engineer

Come and join the Littlefish team!

• Work location: Brentford
• Salary: Up to: £50,000
• Must be eligible for SC Clearance (UK resident for the last 5 years) Willingness to undergo NPPV3 clearance

Here at Littlefish, we look for people who can make a real difference and become a giant slayer. As the world around us continues to change, we look for people who grab that change with optimism and excitement. These are the passionate and high performing people who enjoy and thrive on thinking outside the box.

Our current employees are the giant slayers who have made Littlefish who we are today, and you will be the future employees who continue to add the drive, passion, and add to our skills and experience as we see Littlefish grow.

So, if this is ticking your boxes and you are excited at the thought of working with creative, passionate, energetic, friendly people- we would love to hear from you.

The role and what you’ll be getting up to on a day to day basis:

Are you a passionate Network Engineer ready to make your mark in a fast-moving, tech‑driven environment? At Littlefish, we go far beyond routine support — we architect, optimise, and transform IT environments to empower our clients’ success.

This role gives you the opportunity to be embedded onsite with one of our prestigious clients in Brentford, acting as a trusted technical expert right at the heart of their operation. You’ll build meaningful relationships, solve complex challenges in real time, and directly influence the reliability and performance of their network estate.

As part of our Infrastructure team, you’ll be at the centre of complex problem‑solving, technical escalation, and continuous improvement — ensuring our client receives an exceptional, proactive, and professional service every day.

You will:

• Be the Backbone: Deliver proactive 3rd line support for our cutting-edge network and firewall stack, working with Cisco, Juniper, Fortinet, and more.
• Own the Challenge: Tackle complex incidents, act as a technical escalation point, and collaborate with Service Managers to resolve critical issues.
• Drive Projects: Lend your expertise to major projects, transitions, and operational acceptance – your input shapes our technology roadmap.
• Mentor & Lead

What you’ll bring:

• Technical Credentials: At least one of Cisco CCNA, MS: Azure Network Engineer Associate, Juniper JNCIA, Fortinet Certified Professional, or HPE Aruba Networking Associate.
• Real-World Experience: 2+ years in network engineering, ideally within an MSP. You know your BGP from your OSPF, and you’re hands-on with enterprise kit.
• Security Mindset: Understanding of firewalls, IDS/IPS, NAC, and network security best practices.
• Tool Proficiency: Experience with monitoring and management tools like SolarWinds, LogicMonitor, or Network Configuration Manager.
• Communication: You can translate technical detail for non-technical audiences and thrive in both solo and team settings.
• Continuous Learner: Willing to upskill, work flexibly, and travel as needed.

What can we offer you?

• Through our one of a kind training programme, the Littlefish Academy, you can increase your earnings by £4,500
• Referral bonus scheme of £1000 when you successfully refer a friend.
• Access to our LinkedIn Learning platform, with over 16000 expert-led online tutorials to enhance and achieve your personal and professional goals.
• Healthcare cash plan. This will give you access to online GP appointments, 24/7 access to qualified counsellors and cash back against a range of general healthcare
• Casual dress policy
• Company Pension Scheme
• Company social events
• 25 days annual leave plus public / bank holidays
• Purchase of annual leave scheme

Life at Littlefish:

Our company values shape who we are as a business, what we stand for and how we work. Hiring people with our values at heart, is very important as we see Littlefish grow.

I am High Performing- I like to raise the bar, we look at creating opportunities to increase quality and improve efficiency, we strive for service excellence.

I am Passionate- We build team success and celebrate them together, I am enthusiastic and energetic, I care about the people I work with and we support one another.

I Have a Can-Do Attitude- I am not afraid to step outside my comfort zone, we are not afraid to challenge status quo, we get stuff done!

So, if you feel like you can make a tangible difference, apply today, and join us on this journey.

Here at Littlefish we aim to be somewhere everyone can be themselves. We are committed to encouraging a diverse and inclusive community where everyone irrespective of who they are, or their background, can feel equal and supported.

We encourage applications from people of all backgrounds. Please get in touch if you are concerned about any difficulties you may face during your recruitment process, so we adjust accordingly.

Part of our application process includes a set of ED&I (Equality, diversity and inclusion) questions. Please note, each question has a ‘prefer not to say ‘option).