DI Jobs
  • Home
  • Search Jobs
  • Job Board Advertising Packages
  • Post a Job
  • Sign in
  • Sign up
  • Home
  • Search Jobs
  • Job Board Advertising Packages
  • Post a Job

Refine Search
Current Search
principal mechanical engineer
Refine by Categories
Engineering  (284) Other  (9) Executive & Management  (6) Information Technology  (6) Consulting & Corporate Strategy  (3) Graduate  (1)
Refine by Job Type
Permanent  (277) Contract  (11) Full Time  (8)
Refine by Salary Range
£75,000 - £100,000  (5) £100,000 - £150,000  (9) £150,000 - £200,000  (3)
Refine by Onsite/Remote
Onsite  (298)
Refine by County
Westmorland and Furness  (64) England  (51) Cumberland  (19) Greater Manchester  (15) Greater London  (11) Renfrewshire  (8)
Hampshire  (6) North Lanarkshire  (6) Somerset  (6) West Dunbartonshire Council  (6) North Ayrshire Council  (5) Argyll and Bute Council  (4) Bristol City  (4) East Ayrshire Council  (4) Hertfordshire  (4) Isle of Wight  (4) Edinburgh  (3) Fife  (3) Lancashire  (3) North Yorkshire  (3)
More
Aldwych Consulting
06 Mar, 2026
Permanent
Contract Senior/Principal Mechanical Engineer
£40.00 - £50.00 hourly
Aldwych Consulting Stockport, UK
Freelance Senior / Principal Mechanical Building Services Engineer Stockport Hybrid / Flexible Working We are currently looking for an experienced Senior or Principal Mechanical Building Services Engineer on a freelance basis to join a well-established, award-winning building services consultancy in Stockport. This consultancy is recognised for delivering innovative, sustainable MEP design across healthcare, commercial, and public sector projects , and is at the forefront of net zero and low-carbon building design . They are seeking a highly skilled freelance engineer to support high-profile projects , lead design teams, and provide expert guidance across multiple complex projects . The Role As a freelance Senior/Principal Mechanical Engineer , you will take responsibility for delivering mechanical building services projects of varying scale, from specialist schemes to major developments over 100m . Key responsibilities include: Leading the mechanical...
Aldwych Consulting
06 Mar, 2026
Permanent
Principal Mechanical Engineer
Aldwych Consulting Stockport, UK
Principal Mechanical Building Services Engineer Stockport Hybrid Working An exciting opportunity has arisen for a Principal Mechanical Building Services Engineer to join a well-established, award-winning building services consultancy in Stockport. This respected practice is recognised for delivering high-quality, sustainable MEP design , supporting clients across healthcare, commercial, and public sector projects . They are at the forefront of net zero and low-carbon building design , using cutting-edge modelling and engineering software, and are committed to a supportive, collaborative culture . The consultancy is seeking an experienced engineer to join their senior leadership team , leading projects, mentoring junior engineers, and contributing to the strategic growth of the business. The Role As a Principal Mechanical Engineer , you will manage a range of projects from small specialist schemes to major developments over 100m , ensuring excellence in...
Calibre Search
26 Feb, 2026
Permanent
Principal Mechanical Engineer
Calibre Search Birmingham, UK
Job Title - Principal Mechanical Engineer Salary - 60,000 Car Allowance Location - Birmingham Overview An award-winning, human-centric engineering consultancy is seeking a Principal Mechanical Engineer to join its growing Operational Assets / Existing Buildings team in Birmingham. This is a leadership opportunity within a specialist Property Services group of circa 30 engineers operating across multiple UK offices. Sitting directly beneath the Regional Director, you will play a key role in project delivery, team development, and client growth. The Opportunity This role focuses on existing buildings, helping clients unlock performance improvements, reduce energy consumption, and develop long-term operational strategies across complex estates. You'll work across high-profile frameworks in sectors including: Defence Healthcare Commercial Offices Residential Heritage Projects range from refurbishment and plant replacement to full lifecycle asset...
BS
06 Mar, 2026
Permanent
Senior/Principal Platform Systems Mechanical Engineer
BAE Systems Dalton-in-Furness, UK
Job Title: Senior/Principal Platform Systems Mechanical Engineer Location: Barrow-in-Furness. This position will require a full-time presence on-site Salary: Competitive What you'll be doing: Developing the package of design evidence required to justify a safe, effective design and generate customer confidence in the design solution Specifying and assisting in the build of prototypes, products and systems suitable for testing Providing timely corrective actions on all assigned defects and issues Ensuring that commitments are agreed, reviewed and met Mentoring junior engineers regarding technical matters Making presentations effectively to technical and management audiences and within this, be able to identify and keep abreast of novel technical concepts and markets Author/co-author technical reports, papers, articles, patents and presentations as required Your skills and experiences: Educated to degree level in Engineering, Mechanical or...
BS
06 Mar, 2026
Permanent
Senior/Principal Platform Systems Mechanical Engineer
BAE Systems Ulverston LA12, UK
Job Title: Senior/Principal Platform Systems Mechanical Engineer Location: Barrow-in-Furness. This position will require a full-time presence on-site Salary: Competitive What you'll be doing: Developing the package of design evidence required to justify a safe, effective design and generate customer confidence in the design solution Specifying and assisting in the build of prototypes, products and systems suitable for testing Providing timely corrective actions on all assigned defects and issues Ensuring that commitments are agreed, reviewed and met Mentoring junior engineers regarding technical matters Making presentations effectively to technical and management audiences and within this, be able to identify and keep abreast of novel technical concepts and markets Author/co-author technical reports, papers, articles, patents and presentations as required Your skills and experiences: Educated to degree level in Engineering, Mechanical or...
BS
06 Mar, 2026
Permanent
Senior/Principal Platform Systems Mechanical Engineer
BAE Systems Millom LA18, UK
Job Title: Senior/Principal Platform Systems Mechanical Engineer Location: Barrow-in-Furness. This position will require a full-time presence on-site Salary: Competitive What you'll be doing: Developing the package of design evidence required to justify a safe, effective design and generate customer confidence in the design solution Specifying and assisting in the build of prototypes, products and systems suitable for testing Providing timely corrective actions on all assigned defects and issues Ensuring that commitments are agreed, reviewed and met Mentoring junior engineers regarding technical matters Making presentations effectively to technical and management audiences and within this, be able to identify and keep abreast of novel technical concepts and markets Author/co-author technical reports, papers, articles, patents and presentations as required Your skills and experiences: Educated to degree level in Engineering, Mechanical or...
BS
06 Mar, 2026
Permanent
Senior/Principal Platform Systems Mechanical Engineer
BAE Systems Kirkby-in-Furness LA17, UK
Job Title: Senior/Principal Platform Systems Mechanical Engineer Location: Barrow-in-Furness. This position will require a full-time presence on-site Salary: Competitive What you'll be doing: Developing the package of design evidence required to justify a safe, effective design and generate customer confidence in the design solution Specifying and assisting in the build of prototypes, products and systems suitable for testing Providing timely corrective actions on all assigned defects and issues Ensuring that commitments are agreed, reviewed and met Mentoring junior engineers regarding technical matters Making presentations effectively to technical and management audiences and within this, be able to identify and keep abreast of novel technical concepts and markets Author/co-author technical reports, papers, articles, patents and presentations as required Your skills and experiences: Educated to degree level in Engineering, Mechanical or...
BS
06 Mar, 2026
Permanent
Senior/Principal Platform Systems Mechanical Engineer
BAE Systems Askam-in-Furness LA16, UK
Job Title: Senior/Principal Platform Systems Mechanical Engineer Location: Barrow-in-Furness. This position will require a full-time presence on-site Salary: Competitive What you'll be doing: Developing the package of design evidence required to justify a safe, effective design and generate customer confidence in the design solution Specifying and assisting in the build of prototypes, products and systems suitable for testing Providing timely corrective actions on all assigned defects and issues Ensuring that commitments are agreed, reviewed and met Mentoring junior engineers regarding technical matters Making presentations effectively to technical and management audiences and within this, be able to identify and keep abreast of novel technical concepts and markets Author/co-author technical reports, papers, articles, patents and presentations as required Your skills and experiences: Educated to degree level in Engineering, Mechanical or...
BS
06 Mar, 2026
Permanent
Senior/Principal Platform Systems Mechanical Engineer
BAE Systems Grange-over-Sands LA11, UK
Job Title: Senior/Principal Platform Systems Mechanical Engineer Location: Barrow-in-Furness. This position will require a full-time presence on-site Salary: Competitive What you'll be doing: Developing the package of design evidence required to justify a safe, effective design and generate customer confidence in the design solution Specifying and assisting in the build of prototypes, products and systems suitable for testing Providing timely corrective actions on all assigned defects and issues Ensuring that commitments are agreed, reviewed and met Mentoring junior engineers regarding technical matters Making presentations effectively to technical and management audiences and within this, be able to identify and keep abreast of novel technical concepts and markets Author/co-author technical reports, papers, articles, patents and presentations as required Your skills and experiences: Educated to degree level in Engineering, Mechanical or...
BS
06 Mar, 2026
Permanent
Senior/Principal Platform Systems Mechanical Engineer
BAE Systems Barrow-in-Furness, UK
Job Title: Senior/Principal Platform Systems Mechanical Engineer Location: Barrow-in-Furness. This position will require a full-time presence on-site Salary: Competitive What you'll be doing: Developing the package of design evidence required to justify a safe, effective design and generate customer confidence in the design solution Specifying and assisting in the build of prototypes, products and systems suitable for testing Providing timely corrective actions on all assigned defects and issues Ensuring that commitments are agreed, reviewed and met Mentoring junior engineers regarding technical matters Making presentations effectively to technical and management audiences and within this, be able to identify and keep abreast of novel technical concepts and markets Author/co-author technical reports, papers, articles, patents and presentations as required Your skills and experiences: Educated to degree level in Engineering, Mechanical or...
BS
06 Mar, 2026
Permanent
Senior/Principal Platform Systems Mechanical Engineer
BAE Systems Broughton-in-Furness LA20, UK
Job Title: Senior/Principal Platform Systems Mechanical Engineer Location: Barrow-in-Furness. This position will require a full-time presence on-site Salary: Competitive What you'll be doing: Developing the package of design evidence required to justify a safe, effective design and generate customer confidence in the design solution Specifying and assisting in the build of prototypes, products and systems suitable for testing Providing timely corrective actions on all assigned defects and issues Ensuring that commitments are agreed, reviewed and met Mentoring junior engineers regarding technical matters Making presentations effectively to technical and management audiences and within this, be able to identify and keep abreast of novel technical concepts and markets Author/co-author technical reports, papers, articles, patents and presentations as required Your skills and experiences: Educated to degree level in Engineering, Mechanical or...
BS
01 Mar, 2026
Permanent
Principal Mechanical Design Engineer
BAE Systems Ulverston LA12, UK
Job Title: Principal Mechanical Design Engineer Location: Barrow-in-Furness. We offer a range of hybrid and flexible working arrangements - please speak to your recruiter about the options for this role Salary: Circa £55,000 What you'll be doing: Lead the end-to-end development of complex fluid systems, shaping designs that meet demanding performance and environmental requirements Create and review high-value engineering deliverables - for schematics and P&IDs to calculations, system descriptions, and 3D models Drive advanced system analyses , including flow, pressure, thermal, and transient modelling to validate performance under challenging conditions Select and assess critical equipment (pumps, compressors, valves, heat exchangers, filters, tanks), ensuring it meet tough submarine operating environments Champion technology integrity by reviewing supplier documentation, ensuring full compliance with shock, vibration, atmosphere, temperature,...
BS
01 Mar, 2026
Permanent
Principal Mechanical Design Engineer
BAE Systems Kirkby-in-Furness LA17, UK
Job Title: Principal Mechanical Design Engineer Location: Barrow-in-Furness. We offer a range of hybrid and flexible working arrangements - please speak to your recruiter about the options for this role Salary: Circa £55,000 What you'll be doing: Lead the end-to-end development of complex fluid systems, shaping designs that meet demanding performance and environmental requirements Create and review high-value engineering deliverables - for schematics and P&IDs to calculations, system descriptions, and 3D models Drive advanced system analyses , including flow, pressure, thermal, and transient modelling to validate performance under challenging conditions Select and assess critical equipment (pumps, compressors, valves, heat exchangers, filters, tanks), ensuring it meet tough submarine operating environments Champion technology integrity by reviewing supplier documentation, ensuring full compliance with shock, vibration, atmosphere, temperature,...
BS
01 Mar, 2026
Permanent
Principal Mechanical Design Engineer
BAE Systems Dalton-in-Furness, UK
Job Title: Principal Mechanical Design Engineer Location: Barrow-in-Furness. We offer a range of hybrid and flexible working arrangements - please speak to your recruiter about the options for this role Salary: Circa £55,000 What you'll be doing: Lead the end-to-end development of complex fluid systems, shaping designs that meet demanding performance and environmental requirements Create and review high-value engineering deliverables - for schematics and P&IDs to calculations, system descriptions, and 3D models Drive advanced system analyses , including flow, pressure, thermal, and transient modelling to validate performance under challenging conditions Select and assess critical equipment (pumps, compressors, valves, heat exchangers, filters, tanks), ensuring it meet tough submarine operating environments Champion technology integrity by reviewing supplier documentation, ensuring full compliance with shock, vibration, atmosphere, temperature,...
BS
01 Mar, 2026
Permanent
Principal Mechanical Design Engineer
BAE Systems Barrow-in-Furness, UK
Job Title: Principal Mechanical Design Engineer Location: Barrow-in-Furness. We offer a range of hybrid and flexible working arrangements - please speak to your recruiter about the options for this role Salary: Circa £55,000 What you'll be doing: Lead the end-to-end development of complex fluid systems, shaping designs that meet demanding performance and environmental requirements Create and review high-value engineering deliverables - for schematics and P&IDs to calculations, system descriptions, and 3D models Drive advanced system analyses , including flow, pressure, thermal, and transient modelling to validate performance under challenging conditions Select and assess critical equipment (pumps, compressors, valves, heat exchangers, filters, tanks), ensuring it meet tough submarine operating environments Champion technology integrity by reviewing supplier documentation, ensuring full compliance with shock, vibration, atmosphere, temperature,...
BS
01 Mar, 2026
Permanent
Principal Mechanical Design Engineer
BAE Systems Millom LA18, UK
Job Title: Principal Mechanical Design Engineer Location: Barrow-in-Furness. We offer a range of hybrid and flexible working arrangements - please speak to your recruiter about the options for this role Salary: Circa £55,000 What you'll be doing: Lead the end-to-end development of complex fluid systems, shaping designs that meet demanding performance and environmental requirements Create and review high-value engineering deliverables - for schematics and P&IDs to calculations, system descriptions, and 3D models Drive advanced system analyses , including flow, pressure, thermal, and transient modelling to validate performance under challenging conditions Select and assess critical equipment (pumps, compressors, valves, heat exchangers, filters, tanks), ensuring it meet tough submarine operating environments Champion technology integrity by reviewing supplier documentation, ensuring full compliance with shock, vibration, atmosphere, temperature,...
BS
01 Mar, 2026
Permanent
Principal Mechanical Design Engineer
BAE Systems Broughton-in-Furness LA20, UK
Job Title: Principal Mechanical Design Engineer Location: Barrow-in-Furness. We offer a range of hybrid and flexible working arrangements - please speak to your recruiter about the options for this role Salary: Circa £55,000 What you'll be doing: Lead the end-to-end development of complex fluid systems, shaping designs that meet demanding performance and environmental requirements Create and review high-value engineering deliverables - for schematics and P&IDs to calculations, system descriptions, and 3D models Drive advanced system analyses , including flow, pressure, thermal, and transient modelling to validate performance under challenging conditions Select and assess critical equipment (pumps, compressors, valves, heat exchangers, filters, tanks), ensuring it meet tough submarine operating environments Champion technology integrity by reviewing supplier documentation, ensuring full compliance with shock, vibration, atmosphere, temperature,...
BS
01 Mar, 2026
Permanent
Principal Mechanical Design Engineer
BAE Systems Askam-in-Furness LA16, UK
Job Title: Principal Mechanical Design Engineer Location: Barrow-in-Furness. We offer a range of hybrid and flexible working arrangements - please speak to your recruiter about the options for this role Salary: Circa £55,000 What you'll be doing: Lead the end-to-end development of complex fluid systems, shaping designs that meet demanding performance and environmental requirements Create and review high-value engineering deliverables - for schematics and P&IDs to calculations, system descriptions, and 3D models Drive advanced system analyses , including flow, pressure, thermal, and transient modelling to validate performance under challenging conditions Select and assess critical equipment (pumps, compressors, valves, heat exchangers, filters, tanks), ensuring it meet tough submarine operating environments Champion technology integrity by reviewing supplier documentation, ensuring full compliance with shock, vibration, atmosphere, temperature,...
BS
01 Mar, 2026
Permanent
Principal Mechanical Design Engineer
BAE Systems Grange-over-Sands LA11, UK
Job Title: Principal Mechanical Design Engineer Location: Barrow-in-Furness. We offer a range of hybrid and flexible working arrangements - please speak to your recruiter about the options for this role Salary: Circa £55,000 What you'll be doing: Lead the end-to-end development of complex fluid systems, shaping designs that meet demanding performance and environmental requirements Create and review high-value engineering deliverables - for schematics and P&IDs to calculations, system descriptions, and 3D models Drive advanced system analyses , including flow, pressure, thermal, and transient modelling to validate performance under challenging conditions Select and assess critical equipment (pumps, compressors, valves, heat exchangers, filters, tanks), ensuring it meet tough submarine operating environments Champion technology integrity by reviewing supplier documentation, ensuring full compliance with shock, vibration, atmosphere, temperature,...
Anderselite
23 Feb, 2026
Permanent
Senior Mechanical Design Engineer
Anderselite Loughborough LE12, UK
Morson Edge have partnered with a client, a Tier 2 Civils outfit operating within the water sector, to recruit for a Senior Mechanical Design Engineer in their Leicstershire office. Role Objective Be responsible for the checking and reviewing of mechanical design deliverables to ensure they are fit for purpose, meet the required standards and specifications, and the project outcomes. Provide support and guidance to the mechanical engineers. Role Summary - Work on a diverse programme - Develop junior mechanical engineers. - Develop new ways of working that focus on delivering outcomes, rather than outputs, to reduce carbon, protect and increase natural capital, address climate change, and embrace innovations and new digital technologies. - Grow your professional internal and external networks with a multitude of partners across the sector - Broaden your skills by working collaboratively with multi-disciplinary project teams, Project Managers, Quantity Surveyors, Procurement,...
  • Home
  • About Us
  • Recruitment Blog
  • Terms & Conditions
  • Privacy & Cookies Policy
  • Employer
  • Post a Job
  • Job Board Advertising Packages
  • Diversity, Inclusion & Equality (ED&I) Articles
  • Sign in
  • Contact Us | Recruiters
  • Job Seeker
  • Find Jobs
  • Upload CV
  • Job Seeker Help & Advice
  • Equal Opportunities Monitoring Form
  • Sign in
  • Contact Us | Jobseeker
  • Facebook
  • X / Twitter
  • LinkedIn
© 2026 DIjobs Limited  |  3rd Floor, 86-90 Paul Street, London EC2A 4NE  |  Company Registration: 13316146  |  VAT No: GB 377358650
Diversity Job Board | Inclusion | Equality | ED&I | DEI | EDI | D&I | DEIB | IDEA | BDI | Jobboard | Vacancies | Diversity Jobs | Careers | Jobsite | Diversity and Inclusion Job Boards | Find a New Job | Job Search with DIjobs