Senior / Principal C&I Engineer

🔒 Confidential Employer
Posted 21 March 2026
LOCATION
West Wales
TYPE
Contract
LEVEL
Mid-Senior level
CATEGORY
Engineering
This employer holds a UK Home Office sponsor license — sponsorship for this specific role is at the employer’s discretion

SKILLS

C&I Engineering Electrical Equipment Design SIL Verification Design Standards Oil & Gas Industry Renewable Energy Petrochemical

FULL DESCRIPTION

Seeking a Senior / Principal C&I Engineer for a contract role in West Wales, supporting projects in Oil & Gas, Petrochemical, Renewable Energy, Hydrogen and Nuclear sectors. Responsibilities include process engineering support, safety specification, design, and checking of deliverables. Requires degree qualification, experience in electrical equipment design, and knowledge of relevant design standards.

Senior / Principal C&I Engineer – Contract – Hybrid

Senior / Principal C&I Engineer – Contract – West Wales / Hybrid

Location: West Wales / Hybrid

This is an excellent opportunity to join a leading engineering business during a period of continued growth as they support the Oil & Gas, Petrochemical, Renewable Energy, Hydrogen and Nuclear sectors. TUV Certified status would be a bonus, though not essential.

Our client is based in West Wales and can accommodate a hybrid working pattern.

Role & Responsibilities

  • Undertaking work providing Process Engineering support to a range of CAPEX and OPEX projects.
  • Performing safety specification and certification of safety instrumented systems.
  • Carry out SIL Verification using simplified equations.
  • Undertake design and checking of deliverables according to discipline and area of expertise.
  • Checking the quality of design work to ensure compliance with agreed client design specifications.
  • Preparation and checking of deliverables including drawings, schedules, datasheets, specifications, (input to control philosophies and narratives if applicable).
  • Development of C&I standard procedures, templates and protocols for consulting activities.
  • Development and/or acquisition of suitable analysis tools, databases and software to enhance company’s overall service.
  • Participation in design review, 3D Model Reviews, Value Engineering, Risk Management workshops.
  • Supporting development of ICSS, DCS and SCADA architectures for offshore environments, including brownfield C&I upgrades.
  • Design and testing of simulation software devices for complete project simulation.
  • Responsible for engineering design and assessment in line with client expectations as well as supporting others within the team.
  • Will be required to provide input into HAZOP / HAZIDs.

Key Skills & Knowledge

  • Must be degree qualified, chartered status desired but not essential.
  • Experience of designing electrical equipment, preferably in an energy industry environment.
  • Previously worked on design projects in the Oil & Gas, Petrochem, or Renewable Energy industries.
  • Experience of electrical equipment and its application in conventional and safety applications.
  • Experience in relevant design standards and protocols.
  • TUV Certification would be a distinct advantage.

Additional Information

The role is deemed as outside IR35.

Our client is based in West Wales and can accommodate a hybrid working pattern.

To apply for this role please complete the below:

Vacancy application form - Freddy

Sign up free — access 45,000+ UK sponsor-licensed jobs