Senior Mechanical Engineer

Essar Oil Limited; Ellesmere Port; On-site; GBP 65,000 - 90,000; Full time

Benefits offered by this job

25 days holiday

Private medical insurance

Holiday purchase

Employee discounts

On-site parking

Job summary

Essar Energy Transition (Stanlow) is seeking a Senior Mechanical Engineer to join the Engineering team at Stanlow. This role provides mechanical engineering assurance, supports asset integrity, and drives safe, reliable operation of production facilities.

You will work on critical equipment and lead maintenance/repair solutions with cross-functional teams. You will collaborate with Operations, Maintenance, Inspection, Projects and Turnaround teams to manage mechanical risks, improve asset

Qualifications

• Degree (or equivalent) in Mechanical Engineering or related discipline.
• Significant experience in refining, petrochemical, chemical manufacturing, energy, or similar industries.
• Strong knowledge of static equipment: pressure vessels, piping, heat exchangers, tanks, boilers.
• Experience with rotating equipment and cross-disciplinary teams.
• Proven ability to develop repair strategies, engineering assessments, MoC, and maintenance scopes.
• Familiarity with API, ASME, and British Standards.
• Experience with reliability programmes, risk-based inspection, root cause analysis.
• Excellent written and verbal communication, stakeholder management.

Responsibilities

• Providing technical leadership and assurance for mechanical asset integrity and plant modifications.
• Supporting resolution of complex equipment failures and integrity challenges, including out-of-hours support.
• Leading repair strategies, scopes of work, and technical assessments; authorising concessions.
• Supporting MoC, risk assessments, inspection activities and compliance processes.
• Contributing to reliability improvement initiatives and maintenance optimisation.
• Supporting capital planning and spend on maintenance, turnaround activities.
• Coaching and mentoring engineers to promote engineering excellence.
• Ensuring compliance with COMAH, PSSR, ATEX and PUWER.

Skills

Asset integrity

Maintenance planning

Operations support

Mechanical engineering

Regulatory compliance

Technical leadership

Education

Degree in Mechanical Engineering or related discipline

Job description

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Location: Stanlow Manufacturing Complex, Ellesmere Port

Employment Type: Site Based Full Time Role 5 days per week Monday-Friday

• 25 days holiday, increasing with service
• Private medical insurance
• Additional flex benefits, including holiday purchase
• Access to Employee Assistance Programme with exclusive access to a range of Discounts
• Free secure on-site car parking

About the Company

EET (Essar Energy Transition) vision is to be the leading producer of low carbon fuels and establish a blueprint energy transition hub in the North West. EET plays a major role in supplying the Northwest and the wider UK with essential fuels. We produce over 16% of the UK’s road transport fuels, supply key feedstocks to the petrochemical industry, and are investing heavily in low‑carbon energy solutions.

We work with major retail fuel brands, supermarkets, Manchester Airport, leading airlines, and regional transport operators. We are also a key partner in the HyNet project, helping to deliver the region’s low‑carbon future.

With over 900 skilled colleagues, we offer a strong safety culture, technically challenging work, and some of the best training in the energy sector.

We are seeking an experienced Senior Mechanical Engineer to join our Engineering team at Stanlow. This is a key technical role responsible for providing mechanical engineering assurance, supporting asset integrity and driving the safe, reliable and efficient operation of our production facilities. As a Senior Mechanical Engineer, you will provide expert support for critical static and rotating equipment, lead complex maintenance and repair solutions, and ensure compliance with site standards and regulatory requirements. You will work closely with Operations, Maintenance, Inspection, Projects, Technology and Turnaround teams to manage mechanical risks, improve asset reliability and support the delivery of safe and effective engineering solutions. For new in house projects you will have the opportunity to lead the mechanical design development alongside project managers.

Key responsibilities include:

• Providing technical leadership and assurance for mechanical asset integrity, maintenance activities and plant modifications.
• Supporting the resolution of complex equipment failures, operational threats and integrity challenges. To include participation in the engineering duty rota out of hours support.
• Leading the development of repair strategies, scopes of work and technical assessments, and authorize concessions and technical deviations.
• Supporting Management of Change (MoC), operational risk assessments, inspection activities and compliance processes.
• Contributing to reliability improvement initiatives, root cause investigations and maintenance optimisation programmes.
• Supporting capital planning and delivery of spend on maintenance projects, turnaround activities, including major equipment technical requestion specification and expenditure justification.
• Coaching and mentoring engineers while promoting engineering excellence and continuous improvement.
• Ensuring compliance with relevant engineering standards and regulatory requirements including COMAH, PSSR, ATEX and PUWER.

This is an excellent opportunity to influence long-term asset performance while working in a challenging and rewarding operational environment.

About You

We are looking for a highly capable mechanical engineer with a strong background in asset integrity, maintenance and operational support within a regulated industrial environment. You will combine soundtechnical judgement with a practical, solutions-focused approach and be comfortable operating in a fast-paced setting where reliability, safety and compliance are critical.

We are looking for someone with:

• A degree (or equivalent qualification) in Mechanical Engineering or a related discipline.
• Significant experience within refining, petrochemical, chemical manufacturing, energy, or other major process industries.
• Strong knowledge of static equipment including pressure vessels, piping systems, heat exchangers, tanks, boilers and furnaces.
• Experience supporting rotating equipment and working effectively across multidisciplinary engineering teams.
• Proven capability in developing repair methodologies, engineering assessments, maintenance scopes and management of change documentation.
• A good understanding of relevant industry codes and standards including API, ASME and British Standards.
• Experience supporting reliability programmes, risk-based inspection, root cause analysis and incident investigations.
• Excellent communication, stakeholder management and technical report-writing skills.
• The ability to coach, mentor and influence others, regardless of formal line management responsibility. The ability to make sound risk-based engineering decisions and effectively manage competing priorities in a complex operational environment.

Chartered Engineer status, or progress towards professional registration, would be advantageous.