Senior Principal Mechanical Engineer Job at ASSYSTEM (Newcastle upon Tyne)

EC&I Designer, Engineer, Senior Engineer, Principal Engineer

Step into a career-defining role with Actemium Design, specialists in engineerin...

Location

United Kingdom , Chorley and Whitehaven

Salary:

Not provided

VINCI Energies

Expiration Date

Until further notice

Requirements

Relevant engineering degree (e.g., electrical, electronic, control, instrumentation), HNC/HND, or equivalent professional experience in EC&I design/engineering
Solid understanding of CAD design, industrial electrical systems, instrumentation, and controls design
Experience producing and reviewing EC&I schematics, wiring diagrams, loop drawings, cable schedules, and panel layouts
Proficiency in relevant software (e.g., AutoCAD, EPLAN, Amtech/Trimble, or similar tools)
Knowledge of UK electrical standards and good practice
Proactive, organised, and adaptable approach with strong teamwork and communication skills
For senior/principal roles: proven ability to lead projects, mentor others, and act as technical authority on EC&I design solutions
Full UK driving licence or ability to travel to client sites as required

Job Responsibility

Develop, review, and improve Electrical, Control & Instrumentation (EC&I) designs for nuclear and non-nuclear projects
Carry out detailed engineering calculations, equipment sizing, instrument selection, and preparation of technical documentation (drawings, schedules, data sheets, specifications)
Collaborate with multi-disciplinary teams (mechanical, process, project management) to ensure seamless integration and delivery
Engage with clients, and site teams to clarify requirements, resolve technical queries, and drive engineering excellence
Mentor and support junior engineers/designers, championing knowledge-sharing and continuous improvement

What we offer

Competitive salary package depending on role and experience
Pension contributions
Discretionary annual bonus
Heath Shield plan
26 days holiday plus bank holidays
EV car scheme
Company share scheme (qualifying periods apply)
Death in service insurance
Hybrid and flexible working arrangements where applicable
Supported training

Fulltime

Senior / Principal Mechanical Engineer

ACTEMIUM Design offers multidiscipline design expertise which enables us to deli...

Location

United Kingdom , Chorley

Salary:

Not provided

VINCI Energies

Expiration Date

Until further notice

Requirements

Questioning attitude, confident to challenge information where needed
Previous experience in design substantiation and safety case involvement for highly regulated industries
Fully familiar with all aspects of safety case methodologies and legal framework relevant to nuclear safety
Good oral and written communication skills, including presentation and report writing
Several years' experience working in design engineering
Degree with honours or Level 6 equivalent
Chartered Engineer or equivalent (or working towards)

Job Responsibility

Authoring nuclear substantiation documentation, including Design Substantiation Reports (DSR) providing the assurance and evidence to enable confidence in our technical solutions
Reviewing safety case documentation and identifying potential shortfalls in the design
Liaising with both internal and external designers and equipment vendors to gather information
Interrogating the Engineering Schedule and evidencing claims made against Systems, Structures, and Components (SSC) in the documentation
Interfacing with other stakeholders such as Human Factors, Fire Safety, Criticality, Radiological and the client Technical Authority

What we offer

Competitive salary package
Innovative, collaborative and inclusive environment
Flexible working including hybrid and core hours patterns
Professional and skills based continued development though training and mentoring
Professional Membership fees
Employee share scheme
EV salary sacrifice scheme
Health Shield Cover
Modern offices with on-site gym, café (Chorley Head office)
Social events, charity fundraising events throughout the year

Fulltime

Mechanical Engineer (Senior or Principal)

We are looking for an experienced Senior or Principal Mechanical Engineer with s...

Location

United States , Plymouth

Salary:

Not provided

Uni-Systems Engineering

Expiration Date

Until further notice

Requirements

Must qualify as a U.S. person under ITAR due to access to export-controlled technical data
B.S. degree in Mechanical or Aerospace Engineering from an ABET-accredited school, with 5+ years of experience for Senior level and 7+ years for Principal level
Managed risks associated with custom designs
Collaborated with clients' input to innovate and creatively solve multifaceted problems
Knowledge of current codes and requirements that apply to the Mechanical Engineering discipline
Advanced understanding of engineering software including modeling and analysis
most advantageous being SolidWorks, Solidworks Simulation, MathCAD, Ansys, GD&T
Desire to solve mechanical problems including everything from bearings to actuator sizing with a system level focus
Proficient at using analysis software
Independently determines and develops approach to solutions and work under general direction

Job Responsibility

Design of complex machinery including gearing, actuators, wheels, weldments, bearings, and related assemblies
Contribute to development of concepts and engineering designs, producing engineering calculations as required for projects and design development of systems
Serve as Project Engineer for various projects, overseeing all aspects of design and implementation
Maintain regular communication with clients to ensure project objectives and expectations are met
Develop and manage design budget and schedules, ensuring timely and cost-effective project completion
Lead and coordinate the design team to meet project goals, deadlines and deliverables
Participate in scheduled design reviews with contractors, architects, engineering consultants, and other project team members to ensure alignment and resolve issues
Interface with other departments to coordinate structural systems with electrical and mechanical systems
Provide project status updates during Project Review Meetings and other company meetings
Coordinate with field personnel and purchasing to determine and obtain required components

What we offer

Competitive salary and growth opportunities
Comprehensive benefits package including medical, dental, vision, life, and disability insurance
401(k) plan with above-market company matching
Generous paid time off (PTO) and paid company holidays
HSA and FSA options
A collaborative culture built on integrity, respect, innovation, value and enterprise

Fulltime

New

Mechanical Engineer - Water / Wastewater (Senior / Principal)

Egis is expanding rapidly in the UK, backed by a global team of more than 20,500...

Location

United Kingdom , Manchester

Salary:

Not provided

Egis in the UK

Expiration Date

Until further notice

Requirements

BEng/MEng (or equivalent) in Mechanical Engineering
Registered as a chartered engineer (CEng) or equivalent professional membership (e.g., IMechE or similar)
Strong track record in the UK regulated water market, focused on municipal water and/or wastewater treatment
Demonstrated leadership across the design lifecycle: feasibility/optioneering, concept, outline and detailed design, plus support through delivery stages as the designer
Practical depth in treatment mechanical engineering: selecting and specifying equipment, integrating packaged plant, and producing/reviewing high-quality design documentation
Working knowledge of UK water industry standards, regulatory expectations, and safety-by-design/CDM as applied to treatment facilities
Experience supporting projects delivered via frameworks, alliances and/or D&B models, including design review, technical query response, and design assurance
Confident client and stakeholder manager
clear communicator, comfortable presenting, and able to lead technical conversations with credibility
Evidence of BD/work-winning contribution (or strong demonstrable aptitude): opportunity shaping, bid inputs, client development, and service-line growth

Job Responsibility

Lead the mechanical design of municipal water and wastewater treatment projects across the UK, covering feasibility, optioneering, concept, outline and detailed design across major programmes (e.g. AMP8, WINEP, SROs, etc)
Set and uphold the mechanical design approach for treatment work: in-house standards (in line with water industry asset standards), checking, and consistency of outputs across projects and teams
Fulfil Designer duties under CDM 2015 for mechanical works, ensuring effective hazard identification and risk reduction and, where designated, supporting or undertaking Principal Designer responsibilities on assigned projects
Take ownership of the mechanical scope within multidisciplinary delivery, driving clear decisions on operability, maintainability, access, and whole-life performance
Produce and quality-check core mechanical outputs such as equipment selection, specifications, datasheets, calculations, schedules, and design narratives (e.g., pumping and packaged plant where relevant)
Act as a senior client-facing technical lead, running workshops and design reviews, advising clients, and building long-term relationships with regulated water stakeholders
Provide design assurance and technical support during delivery phases, including reviewing contractor submissions, answering design queries, and supporting handover/commissioning activities when required
Grow the mechanical capability through business development and work winning: identify opportunities, shape scopes, contribute to bids, and build a healthy forward pipeline
Help translate the UK water growth strategy into practical actions: target sectors, priority accounts, capability gaps, and delivery plans focused on treatment
Build the mechanical arm of the UK water consultancy team through recruitment, mentoring and skills development, including pathways, coaching and technical governance

What we offer

An exciting new growth role in a fast‑organic growing UK business, offering clear and accelerated career progression
Top Employers 2025 certification
A global leader in green infrastructure
Highly competitive leadership‑level reward package
Hybrid and flexible working
26+ days annual leave plus bank holidays
Professional development, chartership support & global mobility
Supportive, inclusive culture driven by sustainability and long‑term community impact

Fulltime

New

Mechanical Engineer - Water / Wastewater (Senior / Principal)

As our Mechanical Engineering Lead, you’ll take a national leadership position s...

Location

United Kingdom , Bristol

Salary:

Not provided

Egis in the UK

Expiration Date

Until further notice

Requirements

BEng/MEng (or equivalent) in Mechanical Engineering
Registered as a chartered engineer (CEng) or equivalent professional membership (e.g., IMechE or similar)
Strong track record in the UK regulated water market, focused on municipal water and/or wastewater treatment
Demonstrated leadership across the design lifecycle: feasibility/optioneering, concept, outline and detailed design, plus support through delivery stages as the designer
Practical depth in treatment mechanical engineering: selecting and specifying equipment, integrating packaged plant, and producing/reviewing high-quality design documentation
Working knowledge of UK water industry standards, regulatory expectations, and safety-by-design/CDM as applied to treatment facilities
Experience supporting projects delivered via frameworks, alliances and/or D&B models, including design review, technical query response, and design assurance
Confident client and stakeholder manager
clear communicator, comfortable presenting, and able to lead technical conversations with credibility
Evidence of BD/work-winning contribution (or strong demonstrable aptitude): opportunity shaping, bid inputs, client development, and service-line growth

Job Responsibility

Lead the mechanical design of municipal water and wastewater treatment projects across the UK, covering feasibility, optioneering, concept, outline and detailed design across major programmes (e.g. AMP8, WINEP, SROs, etc)
Set and uphold the mechanical design approach for treatment work: in-house standards (in line with water industry asset standards), checking, and consistency of outputs across projects and teams
Fulfil Designer duties under CDM 2015 for mechanical works, ensuring effective hazard identification and risk reduction and, where designated, supporting or undertaking Principal Designer responsibilities on assigned projects
Take ownership of the mechanical scope within multidisciplinary delivery, driving clear decisions on operability, maintainability, access, and whole-life performance
Produce and quality-check core mechanical outputs such as equipment selection, specifications, datasheets, calculations, schedules, and design narratives (e.g., pumping and packaged plant where relevant)
Act as a senior client-facing technical lead, running workshops and design reviews, advising clients, and building long-term relationships with regulated water stakeholders
Provide design assurance and technical support during delivery phases, including reviewing contractor submissions, answering design queries, and supporting handover/commissioning activities when required
Grow the mechanical capability through business development and work winning: identify opportunities, shape scopes, contribute to bids, and build a healthy forward pipeline
Help translate the UK water growth strategy into practical actions: target sectors, priority accounts, capability gaps, and delivery plans focused on treatment
Build the mechanical arm of the UK water consultancy team through recruitment, mentoring and skills development, including pathways, coaching and technical governance

What we offer

Hybrid and flexible working
26+ days annual leave plus bank holidays
Professional development, chartership support & global mobility
Supportive, inclusive culture driven by sustainability and long‑term community impact

Fulltime

Senior / Principal R&D Mechanical Engineer, Energetic Environments

We are seeking an R&D S&E Mechanical Engineer to apply work planning, process, a...

Location

United States , Albuquerque

Salary:

117500.00 - 235700.00 USD / Year

Sandia National Laboratories

Expiration Date

Until further notice

Requirements

Bachelor's degree in a relevant discipline and five (5) years of directly relevant experience, or an equivalent combination of directly relevant education and engineering or scientific experience that demonstrates the knowledge, skills, and ability to perform independent research and development
Ability to obtain and maintain a DOE Q security clearance

Job Responsibility

Apply work planning, process, and technical judgement experience to develop programs, manage large-scale projects, lead multi-disciplinary teams, evaluate and improve processes, and execute test operations in the field in support of Sandia's national security mission
Lead and/or participate in high-consequence test activities involving one-of-a-kind test hardware, rocket motors, and energetic materials
Develop programs and collaborate with test sponsors throughout Sandia National Laboratories and strategic partners
Evaluate, develop, and improve processes aiding in developing, planning, and conducting large-scale test activities
Work with large, multi-disciplinary teams to apply concepts of work planning and controls, systems engineering and requirements development, and project management
Lead and present in design reviews, test readiness and safety reviews, pre-job briefings, management reviews, and capability briefings
Travel and off-hours work may be required periodically based on test location and mission needs

What we offer

Challenging work with amazing impact that contributes to security, peace, and freedom worldwide
Extraordinary co-workers
Some of the best tools, equipment, and research facilities in the world
Career advancement and enrichment opportunities
Flexible work arrangements for many positions include 9/80 (work 80 hours every two weeks, with every other Friday off) and 4/10 (work 4 ten-hour days each week) compressed workweeks, part-time work, and telecommuting (a mix of onsite work and working from home)
Generous vacation, strong medical and other benefits, competitive 401k, learning opportunities, relocation assistance and amenities aimed at creating a solid work/life balance

Fulltime

Cleared senior principal lead r&d mechanical systems engineer

The W87-0 Sentinel Integration program is seeking an experienced R&D Mechanical ...

Location

United States , Livermore

Salary:

139900.00 - 280600.00 USD / Year

Sandia National Laboratories

Expiration Date

Until further notice

Requirements

A Bachelor's degree in a relevant discipline and five (5) years of directly relevant experience, or an equivalent combination of directly relevant education and engineering or scientific experience that demonstrates the knowledge, skills, and ability to perform independent research and development
Active DOE Q or DoD TS security clearance

Job Responsibility

Lead the systems mechanical design, assembly, and production teams for the W87-0 Joint Test Assembly program
Responsible for Mechanical systems leadership over the Sentinel Integration flight test vehicle programs
Develop detailed understanding of customer requirements and ensure maturation of requirements for specific aspect of the system and components
Collaborate with system engineers and component engineers
provide technical guidance on critical design elements
Define, design, analyze, and review mechanical system and subsystem assemblies, drawings, models, etc.
Team with subject matter experts to plan, execute and analyze data from advanced experiments and modeling and simulation
Mentor early career mechanical engineering team members
Maintain and update production documentation
Perform technical analyses and trade studies to inform risk-based decisions

What we offer

Flexible work arrangements for many positions include 9/80 (work 80 hours every two weeks, with every other Friday off) and 4/10 (work 4 ten-hour days each week) compressed workweeks, part-time work, and telecommuting (a mix of onsite work and working from home)
Generous vacation, strong medical and other benefits, competitive 401k, learning opportunities, relocation assistance and amenities aimed at creating a solid work/life balance

Fulltime

New

Principal Mechanical Engineer

The Principal Mechanical Engineer is responsible for leading the Mechanical Engi...

Location

Australia , Osborne Park

Salary:

Not provided

Mineral Resources

Expiration Date

Until further notice

Requirements

Tertiary Qualifications in Mechanical Engineering
10+ years' experience Industry Experience
5+ years in a Senior Engineering role
Mining related industry experience working on large construction projects from Design to Commissioning
Prior experience in modelling and drafting
Experience with materials handling is essential, and you can accurately calculate all crushing, screening and conveying components based on design criteria
Experience with pumps and piping is essential to accurately size and select suitable pumps and pipe sizing based on mass balance and other process design criteria
Bulk materials storage and handling facilities design include gravity reclaim stockpiles, mass & funnel flow ore bins and feeders
Experience in using Helix or Sidewinder conveyor design software
Strong level of computer literacy (operating systems, Office products, engineering tools)

Job Responsibility

Review and plan projects with the Engineering Manager to ensure technical aspects of each job are clear
Ensure Technical equipment selection in line with the Process Design Criteria
Be a focal point for the management of operating site change management
Undertake Completion / Review of Process Flow Diagrams and Piping & Instrument diagrams
Prepare project design documentation
Undertake facilitate safety in design reviews/workshops ensuring cross discipline participation and follow up through close out
Be a focal point for all technical based queries from the client or associated sub suppliers
Liaise with both in-house and external designers and detailers as required for the successful completion of each project
Assist with purchasing of materials for projects by assessing quantities and completing Purchase Orders
Ensure further development of upkeep and revision to relevant discipline standard drawings, specifications, procedures and various deliverable templates

What we offer

Competitive salary
Annual bonus
Access to "MyShare" MinRes Share Plan
Employee discounts and offers
Physical and mental health programs
Salary packaging

Fulltime

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Senior Principal Mechanical Engineer

Job Description

Job Responsibility

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