Network Engineer

Viridien; Haywards Heath; On-site; GBP 48,000 - 72,000; Full time

Benefits offered by this job

Annual leave

Bonus scheme

Pension

Wellbeing app

Flexible benefits

Visa sponsorship/relocation

Private medical & dental

Job summary

Viridien in the UK is seeking a Network Engineer to support operation, reliability and continuous improvement of its global enterprise and data centre network infrastructure. Based in the Network Operations team at the UK HPC Hub, you will help improve resilience, performance and security of Viridien's networks.

You will monitor daily operations, deploy routing, switching and firewall policies, participate in projects and on-call rotations, and maintain technical documentation and standards.

Qualifications

• 3–5 years' experience in enterprise/datacentre/network environments.
• Hands-on configuring, supporting and troubleshooting production network infrastructure.
• Strong understanding of routing (BGP/OSPF), switching, WAN, firewall and security fundamentals.
• Knowledge of TCP/IP, VLANs, QoS and VPNs.
• Experience with monitoring/observability platforms.
• Ability to work in a collaborative technical team.

Responsibilities

• Support, maintain and troubleshoot enterprise network infrastructure across WAN, LAN, data centre, cloud-connected and security environments.
• Monitor daily data centre operations.
• Deploy, configure and monitor routing, switching, firewall and network security platforms.
• Investigate incidents and support root cause analysis.
• Maintain documentation, diagrams, standards and procedures.
• Collaborate with vendors, service providers and stakeholders.
• Participate in on-call rotations and out-of-hours maintenance.

Skills

3–5 years' experience

routing fundamentals

switching fundamentals

network security fundamentals

troubleshooting skills

team collaboration

written and verbal communication

Education

Bachelor's degree in Computer Science or related

Tools

Arista

Cisco

Dell

Palo Alto

Juniper

VXLAN/EVPN

Job description

Viridien (www.viridiengroup.com) is an advanced technology, digital and Earth data company that pushes the boundaries of science for a more prosperous and sustainable future. With our ingenuity, drive and deep curiosity we discover new insights, innovations, and solutions that efficiently and responsibly resolve complex natural resource, digital, energy transition and infrastructure challenges.

Job Summary

We are seeking for a Network Engineer to support the operation, reliability, and continuous improvement of its global enterprise and data centre network infrastructure.

Based within the Network Operations team at the UK HPC Hub, this role is responsible for supporting enterprise, data centre, cloud-connected, security, and SD-WAN environments. You will contribute to operational support, infrastructure projects, and technology lifecycle activities while helping improve the resilience, performance, and security of Viridien's global network.

About The Team

You will join our global Network Operations team, responsible for delivering and continuously improving secure, reliable, and high-performing network services that support Viridien's business, operational, and research activities worldwide. Working closely with infrastructure teams, vendors, and business stakeholders, you will help operate and enhance our data center, cloud, enterprise, WAN, wireless, and network security environments.

The team combines deep technical expertise with a collaborative, practical, and service-focused culture. We value ownership, clear communication, continuous learning, and teamwork across regions.

Key Responsibilities

• Support, maintain and troubleshoot enterprise network infrastructure across WAN, LAN, wireless, data center, cloud-connected and security environments.
• Monitor daily Data center operations.
• Deploy, configure and monitor routing, switching, firewall and network security platforms.
• Investigate network incidents, contribute to root cause analysis and support preventative improvement actions.
• Monitor network availability, performance, health and capacity across critical services.
• Participate in infrastructure projects, hardware refreshes, migrations and service improvement initiatives.
• Work with senior engineers to implement network enhancements and introduce new technologies.
• Maintain accurate technical documentation, diagrams, standards and operational procedures.
• Support network security, resilience, compliance and lifecycle management activities.
• Collaborate with vendors, service providers and internal stakeholders to support operational and project requirements.
• Participate in an on-call support rotation and occasional out-of-hours maintenance activities.

Qualifications

Required

• Approximately 3–5 years' experience supporting enterprise, datacentre, cloud-connected or service provider network environments.
• Hands-on experience configuring, supporting and troubleshooting production network infrastructure.
• Good understanding of routing, switching, WAN, firewall and network security fundamentals.
• Practical knowledge of technologies such as BGP, OSPF, VLANs, QoS, VPNs and TCP/IP.
• Experience using monitoring, alerting or operational management platforms.
• Strong troubleshooting, analytical and problem-solving skills, with a practical and service-focused approach.
• Ability to work effectively within a collaborative technical team and build strong working relationships.
• Strong written and verbal communication skills.
• Demonstrates ownership, accountability and reliability in delivering work.
• Comfortable working in a global, multicultural and highly technical environment.

Preferred

• Experience with Arista, Aruba/HPE, Cisco, Dell, Palo Alto or Juniper technologies.
• Exposure to SD-WAN and hybrid networking environments.
• Familiarity with Azure networking or cloud connectivity solutions.
• Knowledge of datacentre networking technologies such as VXLAN, EVPN or MLAG.
• Experience with telemetry, observability or performance monitoring platforms.
• Experience with scripting or automation.
• Industry certifications such as CCNA, CCNP, ACSP, ACMP, or PCNSA.
• Degree in Computer Science or a related discipline, or equivalent practical experience.
• Curious and motivated to continuously develop technical knowledge and skills.
• Proactive in identifying opportunities for improvement and resolving issues.
• Able to balance operational responsibilities with project-based work.
• Committed to continuous learning and professional development.

Why work with us?

• Competitive salary commensurate with experience
• Highly attractive bonus scheme
• Initial 22 days annual leave with future increases, complemented by a flexible buying and selling holiday program
• Company pension with generous employer contribution
• Wellbeing Unmind app – puts you in control of your mental health
• A flexible benefits platform with numerous discount schemes - gym membership, restaurants, cinema tickets, and much more!
• Regular social club events, spontaneous reward events throughout the year
• Cycle purchase scheme
• Flexible Private Medical & Dental care programs
• Sponsorship of visas/comprehensive relocation packages
• Bank Holiday Swap - our holiday swap program allows you to change it for another day of your choice!
• Relaxed dress code policy

Learning and Development

At Viridien, we foster a culture of continuous learning and provide tailored training programs through our Learning Hub, designed to enhance technical, commercial, and personal growth.

We Care About The Environment

We encourage and actively support a strong sense of community, through volunteering and various company initiatives, as well as a strong company commitment to protecting our environment through sustainable solutions, energy saving and waste reduction enterprises.

Our Hiring Process

At Viridien, we are committed to delivering a respectful, inclusive, and transparent recruitment experience.

Due to the high volume of applications we receive, we may not be able to provide individual feedback to every applicant. Only candidates whose qualifications closely match the role criteria will be contacted for an interview. We do, however, aim to share personalized feedback with those who progress to the first round of interviews and beyond.

We are also dedicated to ensuring that our hiring process accessible to all. If you require any reasonable adjustments to fully participate in the application or interview stages, please don’t hesitate to contact your recruiter directly.

We see things differently. Diversity fuels our innovation, we value the unique ways in which we differ, and we are committed to equal employment opportunities for all professionals.