Senior Mechanical Engineer

NES Group Ltd; Arne; On-site; GBP 60,000 - 80,000; Full time

Job summary

A leading engineering staffing provider is seeking an experienced Senior Mechanical Integrity Engineer in Arne, UK. This role involves overseeing asset integrity for static equipment, ensuring regulatory compliance, and managing key engineering activities. Candidates should have a BEng/MEng in Mechanical Engineering and ideally over 8 years of experience in the Oil & Gas sector, with a solid grasp of UK legislation. This position offers significant technical ownership and the potential for long-term career growth.

Benefits

Competitive benefits packages

Support for visas and work permits

Qualifications

• 8+ years of senior mechanical engineering experience in Oil & Gas, strong candidates with 5+ years in related industries are considered.
• Solid understanding of UK onshore legislation and pressure systems standards.
• Valid UK driving license required.

Responsibilities

• Lead senior mechanical engineering activities for static equipment.
• Ensure asset integrity risks are communicated and reduced.
• Oversee the preparation of technical specifications for new static equipment.
• Perform code-compliant calculations and review third-party analysis.
• Prepare monthly integrity KPIs and interrogate cathodic protection systems.

Skills

Mechanical engineering expertise

Corrosion management

Regulatory compliance understanding

Detail-oriented

Proactivity and ownership

Education

BEng / MEng in Mechanical Engineering

Tools

API certifications

EEMUA certifications

Job description

NES Fircroft are recruiting for an experienced Senior Mechanical Integrity Engineer to support our client at one of Europe’s largest onshore oilfields.

If you’re someone who thrives in a high-hazard environment, takes ownership, and enjoys being the go‑to technical authority for static equipment integrity, this one’s worth a look.

What You’ll Be Doing

You’ll take the lead on senior mechanical engineering activities for static equipment, ensuring asset integrity risks are properly understood, communicated, and reduced to ALARP. You’ll also act as a key point of contact for regulatory compliance (PSSR, PSR, COMAH) and support strong relationships across both internal and external stakeholders.

Key Responsibilities

Senior Asset Engineering

• Approve piping isometrics, purchase specifications and fabrication quality packs.
• Prepare technical specifications for new static equipment.
• Review Management of Change (MoC) proposals that may impact asset integrity.

Integrity Management

• Perform code‑compliant calculations and review third‑party analysis.
• Maintain pipeline risk assessments and deliver annual integrity reviews.
• Prepare monthly integrity KPIs and interrogate cathodic protection systems.
• Review vendor reports, challenge findings, and drive follow‑up actions.
• Update and refine engineering standards.

Corrosion Management

• Contribute to corrosion risk assessments and approve RBAs for inspections.
• Endorse CUI inspection plans and investigate corrosion‑related events.
• Assess repair methods, identify inspection trends, and validate KPIs.

What You’ll Bring

• BEng / MEng in Mechanical Engineering (essential).
• API / EEMUA certifications (advantageous).
• Ideally 8+ years’ senior mechanical engineering experience in Oil & Gas, though strong candidates with 5+ years in related industries will be considered.
• Solid understanding of UK onshore legislation and pressure systems standards.
• Detail‑driven, proactive, and confident taking ownership.
• Valid UK driving licence.

If you’re looking for a role with real technical ownership and long‑term potential, we’d love to hear from you. Reach out to NES Fircroft to discuss this opportunity further.

With over 90 years’ combined experience, NES Fircroft (NES) is proud to be the world's leading engineering staffing provider spanning the Oil & Gas, Power & Renewables, Chemicals, Construction & Infrastructure, Life Sciences, Mining and Manufacturing sectors worldwide. With more than 80 offices in 45 countries, we are able to provide our clients with the engineering and technical expertise they need, wherever and whenever it is needed. We offer contractors far more than a traditional recruitment service, supporting with everything from securing visas and work permits, to providing market‑leading benefits packages and accommodation, ensuring they are safely and compliantly able to support our clients.