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- Tasks: Lead complex network and security incidents while supporting multiple customer networks.
- Company: Join a specialist network infrastructure provider with a collaborative culture.
- Benefits: Competitive salary, hybrid work, paid certifications, and generous holiday allowance.
- Other info: Opportunity for career growth and mentoring within a dynamic team.
- Why this job: Make a real impact on enterprise networks and enhance your technical skills.
- Qualifications: 3+ years in networking/security and strong Cisco experience required.
Warrington, UK (Hybrid – 4 days onsite, 1 day remote)
Total Package: £64,000 – £65,000
Monday–Friday | No nights or weekends | 1-in-4 on-call
About the Role
We’re looking for an experienced Senior Network Engineer with a strong security focus to join a technically driven, customer-facing managed services team. This is a true L3 role, where you’ll act as a senior escalation point for complex network and security incidents, work directly with customers, and help shape how enterprise networks are designed, secured, and operated. You’ll be hands-on with modern Cisco technologies across LAN, WAN, SD-WAN, wireless, and security, and play a visible role in improving service quality, stability, and automation. If you enjoy solving difficult problems, mentoring others, and working in an environment where technical excellence is genuinely valued, this is a role where you can make a real impact.
Who We Are
We’re a specialist network infrastructure and managed services provider, trusted by organisations across sectors such as logistics, manufacturing, retail, hospitality, public sector, and chemical industries. As a Cisco partner, we focus on intent-based networking and helping customers move away from reactive, break-fix operations towards secure, resilient, and intelligent network environments. Our work spans everything from structured cabling and passive optical LAN through to enterprise switching, SD-WAN, wireless, and network security. Our managed services practice is where we truly differentiate. We support customers running mission-critical networks, act as master systems integrators on large automation projects, and help organisations address skills gaps while improving visibility, reliability, and security. You won’t be joining a large corporate machine – you’ll be part of a collaborative, highly technical team where your voice is heard, your growth is supported, and your expertise matters.
What You’ll Be Doing
- L3 Network & Managed Services Support
- Act as L3 escalation for complex issues across LAN, WAN, SD-WAN, and hybrid cloud environments
- Support multiple customer networks in a fast-paced MSP environment
- Work across multi-vendor infrastructures, primarily Cisco, with exposure to Fortinet and Juniper
- Support onboarding, migrations, and network transformation projects
- Troubleshoot and manage firewalls, VPNs, WAFs, IDS/IPS
- Investigate and respond to real-time security alerts and incidents
- Ensure customer environments align with security policies, standards, and compliance frameworks
- Serve as the final escalation point for P1 / P2 incidents
- Lead incident bridges with customers and internal teams
- Perform root cause analysis (RCA) and produce clear, client-facing reports
- Implement changes in line with ITIL-based change management
- Ensure incidents and requests meet SLA / OLA commitments
- Provide technical input into service reviews and reporting
- Identify opportunities for automation, optimisation, and service improvement
- Analyse monitoring alerts to prevent customer impact
- Fine-tune monitoring thresholds per environment
- Optimise performance, availability, capacity, and security posture
- Develop scripts and automation for repetitive operational tasks
- Contribute to configuration standardisation across clients
- Maintain high-quality documentation and runbooks
- Mentor L1/L2 engineers and support their technical development
What We’re Looking For
- Core Technical Skills
- CCNP Enterprise / Security (or equivalent hands-on experience)
- Strong enterprise Cisco firewall experience (FTD/FMC)
- Hands-on knowledge of Cisco ISE, DNAC, SDA, and SD-WAN
- Advanced networking fundamentals: TCP/IP, routing & switching (BGP, OSPF, MPLS, VLANs, STP)
- Experience with SD-WAN solutions (Viptela, Meraki, Fortinet)
- Exposure to cloud networking (AWS, Azure, GCP)
- Experience with monitoring tools such as Zabbix
- Strong grasp of network security principles
- Experience handling live security incidents
- Familiarity with SIEM platforms (Splunk, QRadar, Sentinel – desirable)
- Understanding of ISO 27001, NIST, GDPR
- Confident, professional client-facing communication
- Calm and effective during high-severity incidents
- Strong attention to detail and documentation discipline
- Ability to manage priorities across multiple customers
- Natural mentor and technical leader
- 3+ years’ experience in networking/security, ideally within an MSP or service provider
- Degree in IT, Computer Science, or equivalent experience
- ITIL Foundation (or willingness to obtain)
Package & Benefits
- £60,000 basic salary + £4,000–£5,000 on-call allowance
- Total package: £64,000–£65,000
- 1-in-4 on-call rota (no nights, weekends, or shift work)
- Hybrid working model
- Paid certifications and ongoing technical development
- 25 days holiday + bank holidays
- Employer pension contribution (3%)
- Company sick pay & EAP scheme
- “A Day to Make a Difference” volunteering initiative
- Refer-a-Friend bonus up to ÂŁ2,500
Why Join Us?
You’ll work on complex, real-world networks, gain exposure across a wide technology stack, and be part of a team that genuinely values engineering quality over ticket-churning. If you’re looking for a senior role where you can influence outcomes, grow your skills, and be trusted as an expert, this is the opportunity for you.
Senior Network Engineer in Halton employer: Annular Group
Contact Detail:
Annular Group Recruiting Team
StudySmarter Expert Advice 🤫
We think this is how you could land Senior Network Engineer in Halton
✨Tip Number 1
Network, network, network! Get out there and connect with people in the industry. Attend meetups, webinars, or even just chat with folks on LinkedIn. You never know who might have a lead on that perfect Senior Network Engineer role.
✨Tip Number 2
Show off your skills! Create a portfolio or GitHub repository showcasing your projects, scripts, or any automation you've done. This is a great way to demonstrate your hands-on experience with Cisco technologies and security operations.
✨Tip Number 3
Prepare for interviews by brushing up on common technical questions and scenarios related to L3 support. Practice explaining complex concepts in simple terms, as you'll need to communicate effectively with clients and team members alike.
✨Tip Number 4
Don’t forget to apply through our website! It’s the best way to ensure your application gets seen by the right people. Plus, we love seeing candidates who are genuinely interested in joining our collaborative team.
We think you need these skills to ace Senior Network Engineer in Halton
Some tips for your application 🫡
Tailor Your CV: Make sure your CV is tailored to the Senior Network Engineer role. Highlight your experience with Cisco technologies, security operations, and any relevant certifications. We want to see how your skills align with what we’re looking for!
Craft a Compelling Cover Letter: Your cover letter is your chance to shine! Share your passion for network engineering and security, and explain why you’d be a great fit for our team. Don’t forget to mention specific projects or achievements that showcase your expertise.
Showcase Your Problem-Solving Skills: In your application, give examples of complex issues you've tackled in previous roles. We love candidates who can demonstrate their ability to think critically and solve problems, especially in high-pressure situations.
Apply Through Our Website: We encourage you to apply directly through our website. It’s the best way for us to receive your application and ensures you don’t miss out on any important updates. Plus, it shows you’re keen to join our team!
How to prepare for a job interview at Annular Group
✨Know Your Tech Inside Out
Make sure you brush up on your knowledge of Cisco technologies, especially around LAN, WAN, and security. Be prepared to discuss specific projects where you've implemented these technologies, as well as any challenges you faced and how you overcame them.
✨Showcase Your Problem-Solving Skills
Since this role involves acting as an escalation point for complex issues, be ready to share examples of how you've tackled difficult network problems in the past. Use the STAR method (Situation, Task, Action, Result) to structure your answers clearly.
✨Demonstrate Your Client-Facing Experience
This position requires strong communication skills with clients. Prepare to discuss how you've managed client relationships, particularly during high-severity incidents. Highlight your ability to remain calm under pressure and how you ensure customer satisfaction.
✨Emphasise Continuous Improvement
Talk about your experience with automation and optimisation in network environments. Share specific instances where you've identified opportunities for improvement and how those changes positively impacted service delivery or performance.