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Principal Mechanical Engineer

Principal Mechanical Engineer Hybrid with occasional visits to the office Location - Manchester OR London OR Newcastle OR Glasgow Contract role - 6 months rolling Inside IR35 - £58 / hour Umbrella A Principal Mechanical…

Inside IR35 Hybrid Business Support
Pay rate £58/hour
Contract type Contract
Posted 31 July 2026

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About this contract

Principal Mechanical Engineer

Hybrid with occasional visits to the office

Location - Manchester OR London OR Newcastle OR Glasgow

Contract role - 6 months rolling

Inside IR35 - £58 / hour Umbrella

A Principal Mechanical Engineer is required to join a design consultancy on a 6-month rolling contract. The role is hybrid and predominantly home based, but you must be willing to occasionally travel to either Manchester, London, Newcastle or Glasgow (dependent on your location). This role will be working in the Energy Transition industry working on low-carbon projects from early-stage development through construction, operation and eventual decommissioning, currently focusing on power plant projects.

Responsibilities

Developing cost-effective, practical mechanical engineering solutions to complex problems
Producing calculations, equipment specifications and datasheets for turbines, compressors, pumps, pressure vessels and heat exchangers
Collaborating with process engineers on PFDs and P&IDs
Supporting plant layout development and 3D model reviews
Working with equipment vendors and evaluating technical proposals
Providing engineering advice on plant integrity issues for operational assets
Contributing to mechanical discipline bids and wider multi-disciplinary proposalsRequirements

A relevant engineering degree
Working towards chartership
Significant work experience in Power Generation or Oil & Gas
Strong knowledge of industry codes and standards for plant equipment and piping design
Experience in pressure vessel and piping design, including stress analysis
Familiarity with plant 3D modelling, working alongside designers and pipe stress engineers
Proficiency in MS Excel for schedules/datasheets and MathCAD for engineering calculations
Experience with operational thermal plant, troubleshooting and integrity assessments
Knowledge of gas turbine systems; reciprocating engine experience is an advantage
Experience with OEMs, EPC contractors or similar organisations
O&M experience highly desirableThe work spans:

Conventional power generation
Energy-from-waste facilities
Industrial energy systems
Carbon capture, utilisation and storage (CCUS)
Future fuels and first-of-a-kind low-carbon technologies--- Fusion People are committed to promoting equal opportunities to people regardless of age, gender, religion, belief, race, sexuality or disability. We operate as an employment agency and employment business. You'll find a wide selection of vacancies on our website

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