Mechanical Integrity Engineer

Intertek Group; Greater London; On-site; GBP 90,000 - 120,000; Full time

Job summary

Intertek seeks experienced Fitness-For-Service Mechanical Integrity engineers for brownfield EPC modifications and integrity programs across multiple energy assets. You will evaluate existing equipment, legacy systems and in‑service degradation to support re-rating, life extension and defect assessment.

Role focuses on API 579/ASME FFS‑1 assessments, ensuring defensible evaluations, compliance with codes and client requirements. On‑call basis with cross‑discipline collaboration.

Qualifications

• Bachelor’s degree in Mechanical Engineering or equivalent.
• Proven experience with FFS assessments under API 579/ASME FFS‑1.
• Experience in rerating, repair evaluation and static equipment integrity.

Responsibilities

• Perform API 579 Level 1/2 FFS assessments for degraded in‑service assets.
• Conduct remaining life evaluations and safe operating limit assessments.
• Interpret inspection and NDT data and correlate with damage mechanisms.
• Support Level 3 assessments via stress analysis/FEA when required.
• Evaluate legacy equipment for revamp, tie‑ins, and re‑use in Brownfield EPC projects.
• Prepare FFS reports and engineering justifications for asset integrity teams.

Skills

FFS assessments

API 579 knowledge

Stress analysis

FEA tools

NDT data interpretation

Rerating & repair evaluation

Static equipment integrity

PVP/ piping integrity

Education

Bachelor’s degree in Mechanical Engineering

Master’s degree in Mechanical Integrity (advantage)

Tools

FFS software tools

FEA software

ASME/API codes references

Job description

Intertek Multinational Company Leader in ATIC (Assurance, Testing, Inspection, Certification) is seeking experienced Fitness-For-Service Mechanical Integrity Engineers for upcoming work related to Brownfield EPC modifications, revamp projects, and operational integrity programs across multiple Energy assets, on a on call basis. This role focuses on evaluating existing equipment, legacy systems, and in-service degradation to support engineering decisions related to re-rating, tie-ins, life extension, defect assessment, and mechanical integrity assurance.

The FFS Mechanical Integrity Engineer provides technical authority in API 579/ASME FFS‑1 assessments and mechanical integrity engineering, ensuring that all evaluations and recommendations are technically defensible, compliant with international codes, and aligned with Client integrity requirements.

Responsabilities:

• Perform API 579 Level 1 and Level 2 FFS assessments for metal loss, pitting, LTAs, crack‑like flaws, dents, gouges, creep, and high‑temperature damage on in‑service assets.
• Conduct remaining life evaluations, safe operating limit assessments, and engineering recommendations for continued operation, derating, or repair.
• Interpret inspection and NDT data (both advanced and conventional methods) and correlate findings with applicable damage mechanisms.
• Support Level 3 assessments through stress analysis and FEA tools when required.
• Perform mechanical integrity evaluations for pressure vessels, piping, tanks, and static equipment, including rerating, repair justification, and alteration assessments.
• Evaluate legacy equipment for revamp, tie‑in, and re‑use scenarios during Brownfield EPC projects.
• Review historical inspection data, operational records, and EPC deliverables to validate inputs for FFS and Mechanical Integrity assessments.
• Provide technical input to repair plans, temporary repairs, and life‑extension strategies in accordance with API 579, API 510/570, and ASME codes.
• Contribute to RBI programs by validating degradation mechanisms, PoF inputs, inspection strategies, and risk‑ranking logic.
• Prepare detailed FFS reports, engineering justifications, and recommendations for Client Asset Integrity / EPC teams.
• Interface with Corrosion, Mechanical, Process, and Inspection teams to resolve data gaps and ensure alignment across disciplines.
• Ensure all FFS work complies with API 579/ASME FFS‑1, ASME VIII, B31.3, API 510/570, and Client standards.

• Bachelor’s degree in Mechanical Engineering, Materials, Metallurgy, or equivalent. Master’s degree in Mechanical Integrity or related field is an advantage.
• Proven experience in mechanical integrity engineering, including rerating, repair evaluation, and static equipment integrity.
• Minimum 5 years demonstrable experience performing FFS assessments.
• Experience with software / tools for Level 2 and Level 3 assessments.
• API 579 training and demonstrated competency in performing FFS assessments (mandatory).
• API 510 and/or API 570 certifications preferred.
• API 571 familiarity is beneficial for damage mechanism correlation.
• ASME or FEA‑related training is an advantage
• Deep expertise in API 579/ASME FFS‑1 methodology and its application to in‑service pressurized equipment.
• Strong understanding of stress analysis, fracture mechanics, remaining life calculations, and structural integrity principles.
• Proficiency in interpreting inspection and NDT data for flaw evaluation and defect characterization.
• Advanced proficiency with FFS software tools.
• Thorough understanding of ASME VIII, ASME B31.3, API 510/570, and related mechanical integrity codes.
• Ability to integrate FFS and Mechanical Integrity results into revamp decisions, repair scopes, and operational integrity strategies

At Intertek, we recognise the value of AI and encourage the responsible use of innovative technologies in the workplace. During assessments and interviews, however, we ask candidates not to use AI tools to generate responses on their behalf, as our aim is to gain a genuine understanding of each candidate's own knowledge, experience, judgement and communication skills.

Where there are reasonable grounds to believe a candidate has used AI to misrepresent their abilities or knowledge, we may ask them to demonstrate their work and may end the recruitment process.

If you use assistive technology and require adjustments during the selection process, please let us know so we can accommodate you.