Operational Technology Network Engineer

What you'll be doing: 

• Monitor, maintain and support Operational Technology network infrastructure across the Anglian Water region 

• Troubleshoot and resolve complex network issues, ensuring high levels of service availability and resilience 

• Manage and maintain routers, firewalls, switches, VLANs, subnets and network security controls 

• Respond to system alerts, incidents and security events, ensuring risks are identified and addressed quickly 

• Support vulnerability remediation and cyber security activities in collaboration with security teams 

• Participate in a 24/7 standby rota to support critical Operational Technology services 

• Manage firmware updates, network patches and infrastructure lifecycle activities 

• Support projects delivering new Operational Technology solutions, providing technical input to designs, testing and implementation 

• Lead testing activities for Operational Technology network changes and upgrades 

• Maintain accurate asset records and ensure compliance with change management processes 

• Drive continuous improvement initiatives focused on network performance, security and resilience 

What we're looking for 

• Experience maintaining and supporting complex TCP/IP network environments 

• Strong understanding of networking technologies, routing protocols, subnetting and IP address management 

• Experience troubleshooting network infrastructure issues in operational or business-critical environments 

• Strong understanding of cyber security principles and network security controls 

• Experience working within IT service management and change management processes 

• Excellent analytical, problem-solving and fault-finding skills 

• Strong communication and stakeholder management skills 

• Experience supporting projects and technical change activity 

• Full UK Driving Licence 

• The role requires CTC security clearance, or the ability to obtain it   

Desirable:  

• Experience working within Operational Technology, industrial control, SCADA or telemetry environments.  

• Experience with Azure, AWS or other cloud environments. Knowledge of user acceptance testing and release management.  

• Relevant networking or infrastructure qualifications.  

• Experience working within utilities, manufacturing or other industrial sectors. 

Why join Anglian Water? 

At Anglian Water, we are driven by purpose - delivering resilient services while protecting the environment for future generations. 

In this role, you will help maintain and secure critical infrastructure that underpins water and water recycling operations, work within a growing Operational Technology domain supporting Industry 4.0 and digital transformation initiatives, and gain exposure to cutting-edge networking, cyber security and operational technology solutions. 

You will contribute to projects that directly improve performance, resilience, leakage reduction and environmental outcomes, while being part of a collaborative team that values innovation, learning and continuous improvement. 

Benefits 

• 26 days annual leave plus bank holidays (increasing with length of service) 

• Flexible working options 

• Private health care 

• Competitive pension scheme - Anglian Water double-matches contributions up to 7% 

• Life assurance at eight times your salary 

• Annual bonus 

• Potential funded car allowance depending on evidenced business mileage 

• Personal medical assessments 

• Virtual GP service 

• Cancer screening 

• Financial wellbeing support and salary finance benefits 

• Lifestyle savings including discounts on retail, travel and utilities 

• Employee Assistance Programme 

• Volunteer days 

Inclusion at Anglian Water 

We are committed to creating a workplace where everyone feels they belong. We are proud signatories of the Social Mobility Pledge, Race at Work Charter and Armed Forces Covenant, and we are a Disability Confident employer.