Control And Instrumentation Engineer

Job Title: Control and Instrumentation Engineer

Working Location: Cardiff

Contract Type: Permanent

Industry: Chemical and Process Manufacturing

Why This Role Stands Out

You will:

- Own the full control and OT estate for the site as the single subject matter expert

- Have genuine influence over safety systems, alarm philosophy, and cyber standards

- Play a key role in the capital projects portfolio, not just break-fix work

- Benefit from contributory pension, annual bonus, private medical, and a strong holiday allowance

- Work in a stable manufacturing environment with real investment in your development

Key Responsibilities

- Act as the site's technical authority for control systems and OT/IT infrastructure

- Make controlled programming changes to the DCS and PLCs, following proper management of change and commissioning processes

- Set and maintain site standards for alarms, overrides, cybersecurity, and IEC 61511 compliance

- Manage the site's protective systems, including interlocks, trips, and SIL-rated functions

- Maintain wider infrastructure from controllers and networks through to historians, servers, and backups

- Investigate plant performance issues through structured investigation and root cause analysis

- Support the Engineering Manager with planning and controlling control-system and IT budgets

- Act as subject matter expert on capital projects that involve control and OT scope

- Coordinate with group-level and shared-service teams on standards, strategy, and issue resolution

- Promote a safety-first culture and ensure full compliance with UK legislation and site SH&E requirements

Requirements

- Degree in Chemical Engineering, Process Control Systems, or Instrumentation and Electronics

- Strong background with modern distributed control systems, covering both software and hardware architecture

- Familiarity with virtualised control system environments (VMware / Hyper-V), including replication and failover

- Hands-on PLC experience across platforms such as Allen-Bradley and Siemens, plus SCADA and ladder logic

- Functional safety certification to 61511/61508 for safety instrumented systems

- Working knowledge of OT cybersecurity practices and management systems

- Structured problem-solving skills, comfortable with 5-Why, Six Sigma, or similar methodologies

- Experience on a live chemical manufacturing site is advantageous

Benefits

- Contributory pension

- Annual bonus

- Private medical cover

- Strong holiday allowance
Only candidates based in UK and eligible to work in UK are allowed