L1 Network and Security Engineer

Nomios; Basingstoke; Hybrid; GBP 28,000 - 35,000; Full time

Job summary

A technology company in the UK is seeking an L1 Network and Security Engineer for their Network Operations Centre. This entry-level role involves monitoring customer networks, responding to alerts, and performing initial troubleshooting. Successful candidates will learn from senior engineers and contribute to the delivery of secure services. This role provides a foundation for career growth in network and security operations and offers competitive salary and benefits.

Benefits

Competitive salary

Bonus scheme

Industry-leading benefits

Qualifications

• Strong interest in networking and security technologies.
• Good communication skills and willingness to learn.
• Basic understanding of IP networking concepts.

Responsibilities

• Monitor customer network infrastructure and respond to alerts.
• Perform first line troubleshooting and escalate unresolved issues.
• Manage incidents and service requests effectively.

Skills

Interest in networking and security technologies

Good verbal communication skills

Good written communication skills

Willingness to learn

Attention to detail

Education

Basic understanding of IP networking concepts

Tools

Familiarity with ticketing systems like ServiceNow

Awareness of network monitoring tools like SolarWinds

Job description

Nomios' mission is to build a ‘secure and connected’ future. Organisations across the globe depend on us to help secure and connect their digital infrastructures.

In support of our rapid and continued UK growth, we are seeking a motivated and organised L1 Network and Security Engineer to join our Network Operations Centre working on a 24/7 shift rota. This hands‑on, entry‑level role supports the day‑to‑day monitoring and support of customer networks and is ideal for someone looking to build a career in network and security operations within a Managed Service Provider environment.

Reporting to the Network Operations Centre Manager, you will work closely with senior engineers and wider teams, contributing to incident response, initial troubleshooting, and the smooth delivery of secure, reliable services.

If you are proactive, detail-oriented, and eager to learn, we want to hear from you.

Your role as a L1 Network and Security Engineer

As a L1 Network and Security Engineer, you will play an important role within the Network Operations Centre, providing first line monitoring and support for customer networks. This is an entry level position designed for individuals who are keen to build a career in network and security operations within a Managed Service Provider environment.

You will be responsible for proactively monitoring customer networks, responding to alerts and incidents, performing initial troubleshooting, and ensuring issues are accurately logged and escalated when required. You will work closely with senior engineers and other teams while developing your technical skills through hands on experience, training, and mentoring.

Responsibilities

Network Monitoring and Alert Handling

• Monitor customer network infrastructure using NOC monitoring tools and dashboards

• Respond to alerts and notifications as they occur

• Perform basic checks and first line troubleshooting following documented procedures

• Identify potential service impacting issues and log incidents accurately

• Escalate complex or unresolved issues to second or third‑line teams in line with processes

Ticket Management

• Create, update, and manage incidents and service requests using the ticketing system

• Ensure tickets contain clear, accurate notes and are updated in a timely manner

• Prioritise tickets based on impact and urgency in line with SLA requirements

• Work with internal teams to help progress tickets through to resolution

First Line Troubleshooting and Learning

• Carry out initial diagnostics and basic network testing

• Gather logs, screenshots, and relevant information to support escalation

• Learn to identify common network and security issues through daily operations

• Ask questions and seek guidance when unsure to ensure correct handling of issues

Change and Maintenance Support

• Assist with planned maintenance activities during scheduled change windows

• Follow change management processes to ensure service continuity

• Document actions taken and provide updates during and after maintenance activities

Customer Support and Communication

• Act as a first point of contact for customer technical queries and service requests

• Communicate clearly, politely, and professionally with customers and colleagues

• Gather required information from customers to support troubleshooting and resolution

Development and Continuous Improvement

• Develop technical knowledge of networking and security technologies

• Work towards relevant training and certifications with support from the team

• Contribute ideas to improve processes, documentation, and service delivery

• Learn from feedback and apply it to improve performance and confidence

We hire smart, high‑energy people! You should have a strong interest in networking and security technologies, be conscientious and reliable, and enjoy working as part of a team in a fast‑paced support environment. A positive attitude and good communication skills are essential, as is the ability to build strong relationships with colleagues, customers, and vendors.

This role provides a strong foundation for progression into more advanced network and security engineering roles.

Essential

• Strong interest in networking and security technologies

• Good verbal and written communication skills

• Willingness to learn, take feedback, and work as part of a team

• Basic understanding of IP networking concepts

• Familiarity with ticketing systems such as Salesforce, ServiceNow, or similar

• Awareness of network monitoring tools such as SolarWinds, Nagios, Zabbix, or similar

• Exposure to working in NOC environment

Desirable

• Introductory knowledge of routing technologies such as OSPF and BGP

• Awareness of MPLS and carrier network concepts

• Exposure to Ethernet services such as E Line or E LAN

• Basic understanding of optical networking technologies including CWDM and DWDM

• Exposure to GPON or XGSPON access networks

• Any experience with Juniper or Cisco devices

• Awareness of vendor platforms such as Cisco, SmartOptics, Nokia, or Ciena

• Basic server knowledge or exposure to Dell or HP hardware

• Understanding of ITIL concepts and the importance of meeting SLAs

• Entry level or associate level certifications are an advantage but not essential

Personal Attributes

• Enthusiastic and motivated with a positive attitude

• Comfortable working in a fast‑paced support environment

• Good attention to detail and willingness to follow processes

• Confident asking questions and seeking support when needed

Job Specifics

• Location: This role is home‑based with occasional visits to the office in Basingstoke

• Hours: 12‑hour shifts: 2 days, 2 nights; 4 days/nights off. Flexibility with hours will be required in the event of a major incident.

Why would you choose to come and work with us?

You will get to work in a dynamic, fast‑paced environment where you are free to use your initiative in support of our strategic goals, working alongside high calibre sales, technical, and operational experts. We are a supportive, tight‑knit team, within which every individual has an important part to play and makes a real difference. Nomios offers a highly competitive salary and bonus scheme, rewarding success, along with industry‑leading benefits.

Nomios is an equal opportunity employer and is committed to creating and sustaining an environment in which everyone is provided with an equal opportunity to grow and develop, and no individual will be unjustly discriminated against. This includes, but is not limited to, discrimination because of age, disability, gender reassignment, marriage and civil partnership, pregnancy and maternity, race, religion and belief, sex and sexual orientation.