> Markdown version of [/jobs/ext/100803-cyber-security-ot-engineer](https://www.wearedevelopers.com/jobs/ext/100803-cyber-security-ot-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md).

---

# Cyber Security OT Engineer

- **Company:** Vallum Associates
- **Location:** Ipswich, UK
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Microsoft Windows, Access Network, Cyber Security, Monitoring of Systems, Supervisory Control and Data Acquisition (SCADA), Internet Protocol Security (IP SEC), Intrusion Detection Systems, Virtual Private Networks (VPN), Python (Programming Language), Network Security, Linux Security Modules, Routing, Public Key Infrastructure, Windows PowerShell, Remote Access Technology, Security Information and Event Management, Virtualization Technology, Wide Area Networks, SSL Certificate Management, Scripting, Identity Services Engine, Cyber Threat Analysis, Firewalls (Computer Science), SC Clearance, Cybercrime, Operational Systems, Fortinet, Vmware
- **Published:** May 16, 2026
- **Apply:** https://find.jobs/jobs-near-me/cyber-security-ot-engineer-ipswich-suffolk/2770241272-2/

## About the Role

* 5+ years in Cyber Security or Networking (preferably in industrial/OT environments)
 * Strong experience in OT/IT security operations and infrastructure
 * Hands-on experience with network security, firewalls, and monitoring tools
 * Experience in incident response and cyber security improvement initiatives

Preferred Skills

 * Industrial protocols: DNP3, ICCP, IEC 61850
 * Standards: NISD, NCSC CAF, ISO 27001/27002, IEC 62443
 * SCADA systems (electricity or utilities environment preferred)
 * Purdue Model understanding
 * Secure VPN technologies (IPSec)
 * Scripting: PowerShell / Python
 * PKI & certificate management
 * Knowledge of communication technologies (Fibre, Satellite, Mobile, etc.)

Qualifications & Certifications

 * Relevant degree or equivalent experience
 * Certifications (preferred): NSE, CCNA, CCNP, CCIE or similar
 * Must be eligible for UK SC Clearance

## Description

We are hiring a Cyber Security OT Engineer to support the protection and resilience of Operational Technology (OT) systems within a critical infrastructure environment. You will work closely with the OT Cyber Security Engineering Manager to ensure systems are secure, compliant, and resilient against cyber threats, in line with NCSC NIS Regulations., * Support implementation, administration, and maintenance of OT security infrastructure

 * Monitor and manage security tools including firewalls, SIEM, PAM, IDS, endpoint security, and network access controls
 * Handle cyber security incidents and support incident response and recovery activities
 * Perform root cause analysis and work with problem management teams
 * Plan, test, and implement changes following strict change control processes
 * Support OT security projects and ensure compliance with regulatory standards (NISD)
 * Conduct cyber security testing and track remediation actions
 * Maintain and enhance security across SCADA and OT environments
 * Collaborate with internal teams, vendors, and service providers
 * Provide technical guidance on secure network design (WAN/LAN, SCADA)
 * Stay updated on emerging cyber threats and trends in OT environments

Technical Environment

 * Fortinet Firewalls & Security Solutions
 * SIEM, PAM, IDS/IPS, Endpoint Security
 * Cisco ISE (AAA)
 * SCADA Systems
 * Virtualisation (VMware)
 * Windows & Linux Security
 * Networking (Routing, VPN, IPSec)


## Related Videos

- [WeAreDevelopers LIVE - Back to CODE100](https://www.wearedevelopers.com/videos/1909-wearedevelopers-live-back-to-code100)
- [Creating a routing app with Google Maps API from scratch](https://www.wearedevelopers.com/videos/831-creating-a-routing-app-with-google-maps-api-from-scratch)
- [WebAssembly: The Next Frontier of Cloud Computing](https://www.wearedevelopers.com/videos/972-webassembly-the-next-frontier-of-cloud-computing)
- [What makes Cybersecurity different for critical infrastructure?](https://www.wearedevelopers.com/videos/571-what-makes-cybersecurity-different-for-critical-infrastructure)
- [A Technical Introduction to Bitcoin's 2nd Layer- The Lightning Network](https://www.wearedevelopers.com/videos/15-a-technical-introduction-to-bitcoin-s-2nd-layer-the-lightning-network)
- [Security Pitfalls for Software Engineers](https://www.wearedevelopers.com/videos/726-security-pitfalls-for-software-engineers)

## Related Articles

- [IT Salaries in UK](https://www.wearedevelopers.com/magazine/288-it-salaries-in-uk)
- [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated)
- [9 Ways to Make Money Hacking](https://www.wearedevelopers.com/magazine/333-9-ways-to-make-money-hacking)
- [Data Engineer Salary UK](https://www.wearedevelopers.com/magazine/253-data-engineer-salary-uk)
- [Dev Digest 134 - Where pixels sing?](https://www.wearedevelopers.com/magazine/477-dev-digest-134-where-pixels-sing)
- [The Most Popular IT Jobs on the Market](https://www.wearedevelopers.com/magazine/376-the-most-popular-it-jobs-on-the-market)