Principal Control

Principal Control & Instrumentation Engineer InSite Technical Services Limited (InSite) is a UK‑based engineering consultancy with an international footprint, delivering expert engineering design, project management and technical support across energy and industrial sectors. With a strong track record in oil refining, terminals, LNG and renewables, InSite is committed to helping clients meet the challenges of the energy transition and deliver projects that support a more sustainable future. The Position Principal Control & Instrumentation (C&I) Engineer This role is central to delivering high‑quality C&I design and functional safety scope across a diverse portfolio of industrial and energy projects. It is ideal for an experienced engineer who can lead projects, work seamlessly within a multidisciplinary environment and engage confidently with clients, vendors and internal teams. Responsibilities Lead and oversee the development of C&I deliverables including philosophies, specifications, datasheets, instrument schedules, I/O lists, control narratives and related engineering documentation. Take responsibility for the functional safety scope across projects (IEC 61511), including HAZID/HAZOP participation, LOPA studies, SIL determination and verification, SRS development, and functional safety assessments and lifecycle documentation. Lead or oversee control system design including PLC, DCS and SCADA system architectures, and provide expert input on cybersecurity considerations (IEC 62443 awareness desirable). Review and approve engineering documents and deliverables for accuracy, integrity, and compliance with relevant standards. Develop technical solutions to complex C&I challenges, interfacing effectively with electrical, mechanical and process teams and supporting discipline contributions to design reviews and technical checkpoints. Define scope, deliverables and resource requirements for C&I work packages, providing accurate input to schedules, estimating, risk identification and change management. Act as the primary C&I technical interface for clients, vendors and integrators, leading technical discussions, clarifying requirements, resolving queries, and supporting project decision‑making. Provide mentoring, guidance and technical coaching to junior and mid‑level engineers, promoting strong engineering quality, safety, compliance and competency development within the C&I team. Qualifications Degree in Control & Instrumentation Engineering, Electrical Engineering or similar (HNC/HND or relevant experience also considered). Extensive experience in C&I detailed design within energy, industrial or process sectors – ideally oil & gas downstream/refining. Working knowledge of PLC, DCS and SCADA architectures, including specification, industrial instrumentation, control loop design and system design. Proven ability to lead technically, communicate clearly and represent the consultancy confidently to clients, vendors and integrators. Experience with system integration, commissioning, FAT/SAT or site support, with an understanding of industrial networks and cybersecurity principles. Functional safety experience (IEC 61511) – e.g. HAZOP/LOPA, SIL determination/verification, SRS or lifecycle deliverables – highly desirable but not essential. TUV Functional Safety Engineer (or similar certification) and/or machinery safety experience considered advantageous. Chartered Engineer status desirable (or working toward), with experience in a consultancy environment beneficial. Reside locally to Pembroke or be prepared to relocate, as this permanent role does not include travel expense coverage. Preferred Profile Many of our UK projects require high‑level security clearance. Visa sponsorship is not guaranteed and is assessed on a case‑by‑case basis, depending on role criticality and project needs. Benefits Annual Leave + Bank Holidays Pension Scheme Life Insurance and long‑term sickness cover Medical cover and Employee Assistance Programme (EAP) Maternity, Paternity Leave Cycle to Work Scheme Training & Development, including additional qualifications and accreditations relevant to your role Equal Employment Opportunity InSite Technical Services is an equal opportunities employer. We are committed to creating a diverse and inclusive workplace where everyone is valued and respected. We welcome applications from all individuals, regardless of background, and do not discriminate based on age, gender, disability, ethnicity, religion, sexual orientation or any other protected characteristic. If you require any reasonable adjustments during the recruitment process, please let us know, and we will be happy to accommodate your needs. #J-18808-Ljbffr