Control & Instrumentation Engineer (C&I) - Energy in Manchester

ALTEN UK is seeking a motivated Control & Instrumentation Engineer (C&I) to join our growing team in Manchester, supporting key projects within the Energy sector. This is an exciting opportunity for engineers looking to develop deep technical expertise across the full lifecycle of control and instrumentation systems.

In this role, you will support the design, modification, validation, commissioning, and maintenance of I&C systems, ensuring robust technical solutions that meet industry, safety, and regulatory expectations. Working closely with engineering and project teams, you will contribute to safe, reliable, and high‑performing operational technology environments.

Location: Derby/ Warrington/ Manchester (Can be any one site)

Clearance: BPSS

Experience Level: 3-15 YOE

Key Responsibilities:

• Design, specify, and validate Instrumentation and Control (I&C) systems in accordance with UK nuclear and safety standards.
• Review and produce technical documentation, including Functional Design Specifications (FDS), Loop Diagrams, and Cause & Effect Matrices.
• Support system integration, commissioning, and site acceptance testing (SAT/FAT) of control systems.
• Liaise with multidisciplinary teams — electrical, mechanical, and systems engineers — to coordinate plant operations.
• Ensure compliance with IEC 61508, BS EN 61513, and ONR safety class requirements.
• Participate in hazard analysis (HAZOP, FMEA) and provide technical support during installation and commissioning.
• Provide technical support across the entire I&C system lifecycle, including design, modification, validation, commissioning, and maintenance.
• Ensure OT security, regulatory compliance, and adherence to industrial safety principles.
• Collaborate closely with engineering teams to deliver trusted, high-quality technical solutions.
• Support continuous improvement and contribute to technical decision‑making processes.

Required Skills:

• Proven experience in I&C system design, specification, and validation.
• Hands‑on experience with PLC and DCS systems (e.g. Siemens, Schneider, Emerson, or ABB).
• Knowledge of instrumentation selection and calibration (pressure, temperature, flow, level).
• Experience preparing/reviewing FDS, Loop Diagrams, and Cause & Effect Matrices.
• Familiarity with system integration, commissioning, and site acceptance testing (SAT/FAT).
• Understanding of Safety Integrity Levels (SIL) and control philosophy.
• Background in nuclear, energy, defence, oil & gas, or other safety‑critical industries.

Required Qualifications:

• A Bachelor’s or Master’s degree in Engineering, or equivalent military experience.
• Electrical Engineering experience.
• Experience working on control systems.
• Knowledge of large infrastructure projects and their safety requirements.

We bring together entrepreneurial, tech‑driven people to deliver innovative solutions for leading companies. At ALTEN, you’ll work on exciting projects, supported by ongoing learning, mentoring, and clear career development tailored to your goals. Join a passionate team and help build tomorrow, today.

A personalised career path and a rewarding management style.

A huge diversity of engineering projects and industries.

Private Medical Insurance.

Employee assistance programme.

Life insurance & Pension Scheme.

Social atmosphere, regular gatherings & team buildings.

Flexible way of working (role dependent).

We are proud to support the Armed Forces Covenant & actively encourage applications from members of the Armed Forces community, including veterans, reservists, service leavers, and military spouses/partners. We recognise the value of military skills and experience and are committed to ensuring that no applicant is unfairly disadvantaged during our recruitment and selection processes.

ALTEN is committed to fostering a diverse and inclusive workplace and values the strength that comes from a global mix of backgrounds and perspectives. We welcome applications from all suitably qualified candidates, regardless of background or protected characteristics under the Equality Act 2010. If you require any reasonable adjustments during the recruitment process, please let us know.

This role may require you to have or be willing to go through Security Clearance. As part of the onboarding process candidates will be asked to complete a Baseline Personnel Security Standard; details of the evidence required to apply may be found on the government website Gov.UK. If you are unable to meet this and any associated criteria, then your employment may be delayed, or rejected. Details of this will be discussed with you at interview.