Senior Mechanical Engineer

Our Business

px PEOPLE, their commitment to excellence, innovation and teamwork, are the reason for px Group’s continuing growth and success story. We aim to be the elite provider of operations management, engineering services and energy management solutions in high hazard, highly regulated industries nationally and as we grow, across Europe and globally. For more information visit www.pxlimited.com 

Our Head Office is based in Stockton-on-Tees and is home to our administrative support teams, engineering & maintenance support team & energy services teams. The Offices are located on the river Tees with close access to walks, shops and restaurants.

The Opportunity
We are now recruiting for a Senior Mechanical Engineer. 

The Senior Mechanical Engineer is a key role for the safe, reliable and compliant operations, through effective delivery of all mechanical systems and associated equipment across stipulated px operated sites within the UK and Europe. Effectively ensuring Compliance, safety, integrity, reliability and commercial considerations.  

You’ll be supported with personalised on the job training, coaching, mentoring and twice-yearly development and performance reviews to help maintain & develop your contributions and competence.

The team support our sites both remotely and physically and there is frequent travel to the following places: 
Stallingborough CHP, WELP, Energy Works Hull & TeesRep Biomass Plant
 
You may also be asked to do both long and short term secondments in the above places. 


 





 

Key Responsibilities

• Lead mechanical engineering support across UK and European sites, ensuring asset integrity, reliability, statutory compliance, and continuous improvement.
• Develop and implement mechanical engineering strategies, systems, and processes to achieve safe, compliant, and efficient operational performance.
• Provide technical guidance for shutdowns, projects, modifications, maintenance activities, and planned/unplanned operational events.
• Manage engineering projects and change initiatives, ensuring compliance with project management and Management of Change (MoC) requirements.
• Drive safety, audit, and compliance activities, including investigations, risk reviews (HAZOP, LOPA, RBI), and safe working standards.
• Support business growth and operational excellence through mentoring, technical leadership, stakeholder engagement, continuous improvement initiatives, and specialist authorisation responsibilities (e.g., radiography, pressure testing, and excavations).

Minimum Requirements

• Degree in Mechanical Engineering (or equivalent) with experience in process, fuel terminal, refinery, or power generation environments.
• Strong background in maintenance, contract, outage/shutdown management, and operational procedures within a 24/7 operating environment.
• Proven ability to deliver compliance, policies, and initiatives across functions while managing relationships with customers, contractors, and stakeholders.
• Experience managing projects, budgets, KPIs, and developing business cases for capital and revenue investment.
• Knowledge of SHE and quality systems, maintenance management, process safety (HAZOP, LOPA, PSM), functional safety, audits, Management of Change, document control, and regulatory compliance.

What you will receive from us

25 days holiday plus bank holidays
Contribution towards eye test and glasses
Online company discount benefits site including cinema tickets and gym membership discount
Long Service Awards
Employee recognition scheme – ELITE Awards
Employee Assistance Programme
Flexible Benefits Package
Onsite parking

We are committed to equality of opportunity for all staff and applications from individuals are encouraged regardless of age, disability, sex, gender reassignment, sexual orientation, pregnancy and maternity, race, religion or belief and marriage and civil partnerships.

Please note this role may close early or be extended depending on the volume of applications.