What Senior Mechanical Engineer Jobs are in the United Kingdom?

• Mechanical design of storage tanks
• Production and verification of engineering calculations and deliverables
• Supervision of engineers and designers within project teams
• Technical support for project bids and tender submissions
• Ensuring compliance with recognised industry design codes, including API and Eurocodes

• Degree in Mechanical Engineering
• Experience within the oil, gas, petrochemical, or energy sectors
• Experience designing ambient or low-temperature storage tanks
• Knowledge of tank design codes

• Chartered Engineer status
• Experience with analysis software such as ANSYS, STAAD, or CAESAR II
• Knowledge of pressure vessel design codes
• Experience using AutoCAD, SmartPlant 3D, PDMS, or Inventor

Job Title: Senior Mechanical Engineer

Summary

We are looking for an experienced Senior Mechanical Engineer to join a critical programme at Sellafield, Cumbria. This role involves supporting the Plant Facing Design Office in delivering innovative engineering retrievals and operations programme. Ideal for professionals with strong mechanical design expertise in regulated environments, this contract offers an exciting opportunity on a major infrastructure project.

Salary: Competitive 

Location and Working Pattern

Sellafield, Cumbria – Full-time, Monday to Friday, 40 hours per week

Client Overview

Our client is a reputable organisation involved in large-scale, complex engineering projects in the nuclear sector, recognised for prioritising safety, quality, and technical excellence.

Responsibilities

• Develop mechanical tooling and engineering solutions for project requirements.
• Produce comprehensive engineering design packages, including drawings, specifications, and substantiation reports.
• Prepare documentation such as NFRs, OIMS, CDM Risk Assessments, and Residual Design Risk Registers.
• Work collaboratively with multidisciplinary teams and provide support to the Principal Engineer.
• Ensure adherence to Sellafield engineering standards and compliance with CDM regulations throughout project delivery.

Must-have Requirements

• Demonstrated mechanical design experience within a regulated industry.
• In-depth knowledge of CDM regulations and designer responsibilities.
• Proven ability to produce design packages suitable for manufacture and installation.
• Familiarity with engineering standards, procedures, and best practices.

Essential Qualifications

• HNC/HND or Degree in Mechanical Engineering or a related discipline.

Nice-to-have Skills

• Experience in nuclear or decommissioning projects.
• Understanding of legacy facilities, contaminated environments, and retrieval operations.

The NRL Group connect global companies with the right people to bring engineering projects to life. Supporting contracting companies with energy transition plans and working with our clients to create a cleaner, greener future.
 
We welcome applications from every walk of life and are committed to diversity within the industries we support, as a certified Inclusive Recruiter and Armed Forces friendly employer. You can ensure you stay safe when job searching online by visiting the JobsAware website.

We're looking for a Senior Mechanical Project Engineer to join our Kier Mechanical & Electrical team based in the West Midlands.

Location: Solihull, Birmingham
Hours: Full Time, Permanent - some flexibility on hours available if desired, just let us know when you speak to us.

We are unable to offer certificates of sponsorship to any candidates in this role.

As a Senior Mechanical Project Engineer, you'll play a vital role in delivering high-quality mechanical engineering services across our projects. Working within Kier Mechanical & Electrical (KME), our internal MEP self-delivery business, you'll be part of a collaborative team supporting regional businesses and strategic projects across sectors including custodial, education, commercial, health, and science. 

What will you be responsible for?

As a Senior Mechanical Project Engineer, you'll be working within the project team, supporting them in delivering compliant, safe, and efficient mechanical engineering solutions. Your day to day will include:

• Ensuring all works are procured, planned, and carried out safely in accordance with Kier standards, project requirements, and legislation
• Reviewing designs with design teams and clients to optimise construction efficiency, safety, and compliance
• Managing robust change control processes and identifying risks and opportunities
• Implementing quality control procedures and maintaining accurate records throughout the project lifecycle
• Providing leadership and guidance to project team members, setting clear expectations and supporting their development

What are we looking for?

This role of Senior Mechanical Project Engineer is great for you if:

• You're technically knowledgeable in mechanical services and safety, holding a relevant industry accredited qualification
• You have CSCS and SMSTS accreditation as a minimum
• You enjoy working collaboratively within a team environment and building positive relationships
• You're committed to maintaining high standards of quality and safety
• You're looking for a role where you can make a genuine impact and develop your career further

We're all about finding potential here at Kier, and transferrable skills are always welcome! So, even if you don't tick every box, please apply and we can have a chat.

Rewards and benefits

We're proud to be able to offer our brilliant people a wide variety of benefits that you can tailor to your needs. You can see more information of benefits here .

Diversity and inclusion

Making Kier a diverse and inclusive place to work is a huge priority for us. We're proud of the steps we've taken so far, but we know we must always do more. Our employees are key in shaping Kier's diversity and inclusion initiatives and our people have made a huge impact on how we work, by using their experiences to shape our policies. You can see our D&I action plan here . As a Disability Confident employer, we will ensure that a fair and proportionate number of disabled applicants that meet the minimum criteria for this role will be offered an interview.

We look forward to seeing your application to #joinkier #LI-AS2

Job Title: Senior Mechanical Engineer

Location: Portsmouth Broad Oak. We offer a range of hybrid and flexible working arrangements – please speak to your recruiter about the options for this particular role

Salary: Circa £45,000 depending on skills and experience

Who we are:

Join BAE Systems and you’ll be part of something bigger. As a valued member of our global colleague network, you’ll bring your unique skills and perspectives to help pioneer progress and protect what matters most. You’ll be trusted to play your part in delivering the advanced, technology-led defence, aerospace and security solutions of tomorrow, shaping a safer future, for all of us.

From the depths of the ocean, to the far reaches of space, there’s no limit to where a career at BAE Systems could take you.

Core Duties:

• Designing new and/or developing existing electro/mechanical designs relating to torpedo products
• Produce technical documentation in line with company guidelines and deliver mechanical design presentations in design review discussions and supplier/stakeholder meetings
• Perform established analysis techniques (structural/thermal) and conduct mechanical tests to confirm compliance with design requirements
• Apply existing knowledge in the selection and development of appropriate materials and manufacturing techniques
• Have an understanding of the Engineering LCM process and assist Engineering Governance and Requirements Capture activities
• Establish and build positive working relationships with different engineering disciplines and competencies within the business, supplier and stakeholder communities in order to improve performance of the business
• Undertake continuous professional development as required in order to build own skill, knowledge and competence within the discipline

Essential Skills:

• You will have a degree in Mechanical Engineering and have an understanding of mathematical and engineering first principles
• You will be able to apply problem solving skills & contribute expertise in Mechanical Engineering principles for providing design solutions
• You will have a good all round Mechanical Engineering capability and an interest in developing a specialist skill (structural/thermal)
• You will have attained or working towards IEng/CEng status

The Torpedo’s Mechanical Engineering team:

The mechanical engineering team’s primary role is to support the new development opportunities and in-service support of heavyweight and lightweight torpedoes for the UK Royal Navy and export customers. The team are involved in many phases of the engineering lifecycle from concept development, detailed design and disposal activities of torpedo hardware and items of support and test equipment used for integration and maintenance. Skills, knowledge and experience of the team include specialist mechanical design, build, test, trials activities and systems engineering support to the wider enterprise, enabling a close working relationship with all stakeholders and organisations involved in the support of the UK torpedo programmes

Why BAE Systems?

Here you’ll build a career with purpose and limitless possibilities. With lifelong learning and meaningful work, this is a place where you can grow your career with confidence and be empowered to be your best. You’ll be recognised for your contribution and enjoy rewards tailored to what’s most important to you and your family, support for your financial and personal wellbeing, as well as a balanced lifestyle. In an environment embracing sustainable ways of working and with a strong sense of shared purpose, our supportive culture is a place you can feel you belong and proud of the difference you make.

A place where everyone can thrive:

We’re committed to building an inclusive workplace where everyone feels valued and supported. We know that a diversity of backgrounds, perspectives and experiences strengthens our teams and is vital to the work we do.

Please be aware that many roles at BAE Systems are subject to both security and export control restrictions. These restrictions mean that factors such as your nationality, any nationalities you may have previously held, and your place of birth can restrict the roles you are eligible to perform within the organisation. All applicants must as a minimum achieve Baseline Personnel Security Standard. Many roles also require higher levels of National Security Vetting where applicants must typically have 5 to 10 years of continuous residency in the UK depending on the vetting level required for the role , to allow for meaningful security vetting checks.

Closing Date: 6th August 2026

We reserve the right to close this vacancy early if we receive sufficient applications for the role . Therefore, if you are interested, please submit your application as early as possible.

#LI-RB1

#LI-Hybrid

Senior Mechanical Engineer

Co. Derry
Competitive Salary + Excellent Benefits

Senior Mechanical Engineer opportunity with a leading engineering manufacturer.

An established and growing engineering manufacturer is seeking an experienced Senior Mechanical Engineer to join its engineering team. This is an excellent opportunity to take ownership of technically challenging projects, influence new product development and play a key role in delivering innovative engineered solutions for customers across the UK and Europe.

Working within a modern manufacturing environment, you'll collaborate with production, procurement and project teams to develop high-quality products from concept through to manufacture.

The Role
As a Senior Mechanical Engineer, you'll lead mechanical design projects while supporting continuous product improvement and ensuring designs meet the highest engineering and quality standards.

Key Responsibilities

• Lead the design and development of new products and engineering solutions
• Produce detailed 3D CAD models, engineering drawings and Bills of Materials
• Manage projects from concept through design, manufacture and implementation
• Ensure designs comply with relevant industry standards and customer specifications
• Work closely with production teams to improve manufacturability and resolve technical challenges
• Liaise with customers and suppliers regarding bespoke engineering requirements
• Participate in design reviews and drive continuous improvement initiatives
• Support product development and engineering innovation
• Mentor junior engineers and contribute to developing engineering best practice

About You
You'll be an experienced Mechanical Engineer with a passion for solving engineering challenges and delivering practical design solutions.

Ideally you'll have:

• Degree or HND in Mechanical Engineering or a related discipline
• Several years' experience in a mechanical design or product development role
• Strong 3D CAD experience (SolidWorks, Creo, Inventor, NX or similar)
• Experience producing detailed manufacturing drawings and Bills of Materials
• A background in heavy engineering, fabrication, automotive, special-purpose machinery or a similar manufacturing environment
• Excellent problem-solving and communication skills
• The ability to manage multiple engineering projects simultaneously
• A practical, hands-on approach with strong attention to detail

What's on Offer

• Competitive salary
• Enhanced pension scheme
• Life assurance
• Ongoing training and professional development
• Genuine opportunities for career progression
• Modern manufacturing facilities
• Free onsite parking
• Opportunity to work on technically challenging, bespoke engineering projects
• Supportive and collaborative engineering team

Why Apply?

This is a fantastic opportunity to join a well-established manufacturer that continues to invest in its people, products and technology. You'll have the autonomy to lead projects, contribute to innovative product development and see your designs brought to life on the manufacturing floor. If you're looking for a role offering technical variety, career progression and long-term stability, we'd love to hear from you.

If this is of interest apply now or reach out to

INDKY

Skills:
MECHANICAL ENGINEER DESIGN MANUFACTURING PRODUCTION QUALITY

WHJS1_NI

A well-established award winning multi-disciplinary consultancy has an immediate requirement for an experienced senior level mechanical design engineer to join their design team in their Manchester office.

It is essential that you have experience within the automotive, commercial/industrial, retail, residential and education sectors and experience in clean/dry rooms desirable.

The successful candidate will be responsible, under the leadership of the Director/Associate Director, for the project management of medium to large scale projects and individual engineering task(s) for numerous schemes for client's cross sector. This will include the creation, development of and finalising engineering design solutions of mechanical services elements, working with other team members and project teams together with direct liaison with the client and other design team professionals. Attendance at regular project meetings, site inspections and monitoring or works at a site level will be key functions of this role.

The candidate shall have experience across the breadth of mechanical building services such as:

• Heating Ventilation and Air Conditioning (HVAC) inc. ISO Clean/Dry Rooms
• Hot and Cold Water
• Compressed Air
• Steam
• Foul Drainage Above Ground
• Central Control/Building Management

The candidate should also be able to:

• Complete survey work and site inspections
• Undertake design calculations using various methods, from hand calculations to software-based modelling
• Prepare drawn information
• Write technical specifications
• Write technical reports
• Identify and resolve problems early
• Exhibit active project risk management
• Peer review and check design information prepared by others
• Manage a project specific team of engineers
• Maintain records and archives to company standards
• Manage their own workload to meet defined targets and deadlines
• Allocate and manage project specific workload of Graduates, Project Engineers and Admin staff
• Manage commercial aspects of projects they are working on including responsibility for management of project income and costs
• Manage client relationships on specific projects
• Look for additional opportunities within existing and new client relationships
• Take responsibility for their own professional and personal development
• Input and some responsibility for professional and personal development of team members, staff Performance and Development Reviews and mentoring of staff

They are seeking established building services engineering candidates who have been working within building services and specifically building services consultancy with at least Ten (10) years post graduate 'hands on' design experience.

The candidate should be a Chartered Engineer (CEng) with either the Chartered Institution of Building Services Engineers (CIBSE) or the Institution of Mechanical Engineers (IMechE) and possess a building services/architectural engineering degree and/or masters.

Accreditation via an appropriate Institution i.e. CIBSE under an Energy Assessor Scheme for the production and lodgement of non-domestic Energy Performance Certificate (EPC)'s for both new build and existing (refurbishment) buildings is desirable.

The candidate for this position will have a high level of computer literacy a good working knowledge of Microsoft Word, Excel, Autodesk Revit MEP, Cymap and ideally EDSL Tas. The successful candidate will be a required to provide support to our other teams and/or offices from time to time.

The ability to operate as part of a wider project team within appropriate authority levels and to represent the company with confidence to a variety of clients and outside organisations is expected. The candidate will have the ability to work on their own initiative as well as part of one of our dynamic teams with a high attention to detail.

As a self-motivated person you will demonstrate the potential to progress with the company, working with some of the world's greatest businesses across a wide range of industry sectors.

You will be expected to contribute your ideas, add value and play your part in a consultancy that's at the cutting edge of the industry.

Senior Mechanical Engineer - Water

Location: Exeter (Hybrid)
Salary: Up to 55,000 + Excellent Benefits

An exciting opportunity has arisen for a Senior Mechanical Engineer to join a leading engineering consultancy delivering major water and wastewater infrastructure projects across the UK.

Working as part of a multidisciplinary team, you'll play a key role in the design and delivery of projects across major AMP programmes. You'll be involved throughout the project lifecycle, from feasibility and outline design through to detailed design, while working closely with clients, contractors and fellow engineering disciplines.

This role offers excellent opportunities for career progression, technical development and the chance to work on a diverse portfolio of challenging infrastructure projects.

Key Responsibilities

• Deliver mechanical design for water and wastewater infrastructure projects.
• Produce and review calculations, technical specifications and design documentation.
• Collaborate with multidisciplinary teams to develop practical engineering solutions.
• Liaise with clients, contractors and key project stakeholders.
• Support and mentor junior engineers and technicians.
• Ensure designs comply with industry standards, health & safety requirements and quality procedures.

About You

• Degree qualified in Mechanical Engineering (or equivalent experience).
• Working towards or already achieved Chartered Engineer status.
• Experience delivering mechanical design within the UK water sector.
• Knowledge of pumping systems, treatment processes and mechanical plant.
• Experience using CAD/Revit and an understanding of BIM principles is advantageous.
• Strong communication and problem-solving skills.
• Full UK driving licence.

What's on Offer

• Salary up to 55,000.
• Hybrid working from the Exeter office.
• Opportunity to work on major UK water infrastructure projects.
• Ongoing professional development and support towards Chartership (if required).
• Flexible working and an excellent benefits package.

Please contact Molly Brown for more information.

We are an equal opportunity employer and value diversity in our company. We do not discriminate on the basis of race, religion, colour, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.

My Client is recruiting for a Senior/Mechanical Engineer in the Water Sector

Location: Bridgend - Hybrid/Remote

Role Overview
The engineering services we offer to our clients requires us to be able to deliver in an agile environment and the following are examples of the type of responsibilities and duties we are looking for from our candidates, working as part of our dynamic multidisciplinary water/wastewater design team.:

Duties & Responsibilities

• Work collaboratively within a multidisciplinary environment across teams Worldwide, including the UK, to ensure successful delivery of projects.
• Lead small projects and contribute to the efficient delivery of projects to meet programme and budget, complying with business management governance.
• Production and review of design deliverables including engineering design calculation, drawings and report writing for projects in accordance with relevant design standard, codes and design management system.
• Practice and contribute to quality and safe design of technical solutions for projects in accordance with relevant design standards and codes.
• Strong communication skills and be able to deliver technical solutions to clients and other design engineers as well as inputting into collaborative design discussions including technical workshops, and safety reviews including HAZOPs and ALMs.
• Client and construction team engagement (incl. Design & Build) and contribute to discussions on technical engineering solutions, both during project delivery and bidding stages.
• Understand how water and wastewater treatment processes and pumping systems operate and be able to assess existing site infrastructure to develop and deliver the mechanical design
• Providing support to allow the project team to comply with the duties of Designer under CDM including the production of design risk assessments

Skills & Experience

• Educated to degree level within Mechanical engineering or equivalent; Incorporated Engineer Status or working towards achieving Chartered status with the IMechE or equivalent institution.
• Hands on experience of design/design-&-build/project and bid delivery in the water and/or wastewater engineering sector in the UK.
• A strong technical water sector background, incl. knowledge of WIMES, relevant UK codes and asset standards, for water and/or wastewater infrastructure and/or non-infrastructure assets.
• Highly motivated, organised and with a strong desire to manage and contribute to technical excellence within project teams and wider team/practice.
• Experience of working with contractors to deliver the successful implementation of engineering solutions in the Design & Build environment.
• Excellent interpersonal, verbal and written communication skills with the ability to work both collaboratively and independently within a multidisciplinary team including with Clients, Contractors and colleagues alike.
• Flexible approach to work type and locations for project assignments, if required, with visits to sites or client office for meetings.

• Lead mechanical design projects from concept through to completion, producing accurate technical specifications and calculations
• Act as the key technical contact for customers, ensuring designs meet requirements, compliance standards, and safety regulations
• Carry out proof and fatigue finite element analysis (FEA), design verification, and approve calculations from other engineers
• Develop 3D models, manufacturing drawings, and bills of materials in line with company quality standards
• Run design reviews with internal teams and clients
• Support production, purchasing, and wider departments to ensure designs are practical, economical, and deliver value
• Drive continuous improvement across design processes and systems
• Provide technical coaching and mentoring to less experienced engineers

• Mechanical Engineer
• Strong background in FEA and hand calculations
• Ideally some Rail experience, or adjacent industry (Heavy Engineering / Manufacturing)