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
Portsmouth Onsite principal systems engineer
Search within
50 miles
10 miles 20 miles 50 miles 100 miles 200 miles
Refine by Categories
Engineering  (8) Executive & Management  (2) Consulting & Corporate Strategy  (1)
Refine by Job Type
Full Time  (5) Permanent  (4)
Refine by Salary Range
£100,000 - £150,000  (1)
Refine by County
West Sussex  (5) Berkshire  (2) Isle of Wight  (1) Southampton  (1)
OU
29 Oct, 2026
Permanent
Principal Thermal Mechanical Engineer
Outsource UK Cowes, UK
Principal Thermal Mechanical Engineer Location: Cowes 3/4 days on site Duration : 6 Months - Scope for extension or permanent offer Rate: Hourly rate: £51.86 PAYE / £70 Umbrella Inside IR35 Are you an experienced Mechanical Engineer with a focus on thermal systems? Join BAE Systems Naval Radar as a Principal Thermal Mechanical Engineer , delivering cutting-edge radar solutions to the Royal Navy. This is a fantastic opportunity to bring your expertise to a dynamic team, influence product performance and mentor engineering talent. What you'll do: Conduct peer reviews and verify engineering tasks to ensure compliance with standards Identify and resolve product lifecycle issues, leading change activities to maintain compliance Establish and manage qualification requirements during build, test, and commissioning Serve as a subject matter expert, coaching and mentoring team members Collaborate with electrical, mechanical, and systems engineers to optimise...
Randstad Construction and Property
20 Oct, 2026
Permanent
Sub Agent
£400 - £450 daily
Randstad Construction and Property Chichester, UK
Sub Agent (Civils & Water Infrastructure) Location: Chichester, West Sussex Contract Rate: £400 - £450 per day (LTD / IR35 Determination Pending) Duration: Long-Term Contract (AMP8 Framework) Start Date: Immediate / ASAP Project Overview We are seeking an experienced Sub Agent to join a principal contractor delivering a major capital upgrade across an active Water Treatment Works (WTW) facility in Chichester. This long-term assignment forms part of the AMP8 infrastructure framework. Working alongside the Site Agent and Project Manager, you will take hands-on operational management of core civil engineering packages-including deep excavations, reinforced concrete (RC) structures, pipeline diversions, and temporary works-ensuring works are executed safely, to specification, and strictly against project milestones. Key Responsibilities Site Operational Management: Oversee daily civil engineering delivery on site, directing site engineers,...
Amentum
23 Oct, 2026
Permanent
Principal Electrical Design Engineer
Amentum Burghfield Common, Reading, UK
About the opportunity: Our Defence and Security provide design and engineering services for our nuclear and defence clients across the UK and abroad. Our team is experiencing exciting growth and long-term prospects within our established practice, and we are looking for an Principal Electrical Engineer to design large industrial facilities, e.g. power station buildings, large manufacturing facilities, dockyards, etc then we want to speak with you. We offer hybrid working with 1-2 days in the our Glasgow or Reading office. Occasional site visits may be necessary. Key Responsibilities include: Performs the assessment and design and monitors ongoing process of a project, including the coordination of the project with project delivery team. Leading/working with a team of EC&I engineers/designers in developing engineering deliverables throughout various stages of the project. Prepare drawings, functional and technical specifications, and contract documents....
Thales
01 Nov, 2026
Full Time
Senior Systems Engineer - Electronic Warfare
Thales Crawley, UK
Location: Crawley, United Kingdom Thales is a global technology leader with more than 83,000 employees on five continents. With over 7,500 people in the UK, operating across defence, space, aerospace, and digital security, we help build a future we can all trust. Thales supports the security and stability of our nation by providing extraordinary technology to our customers, as well as delivering social value to the UK with our products and services. Senior Systems Engineer – Electronic Warfare Crawley - Hybrid Thales Intelligence, Surveillance and Reconnaissance (ISR) UK is a principal supplier of Electronic Warfare (EW), Radar and Uncrewed Aerial Systems (UAS) equipment to the UK armed forces, as well as an exporter of these capabilities worldwide. We are recruiting for a Senior Systems Engineer to work on projects covering next generation Electronic Warfare (EW), Radar or UAS solutions. This Systems Engineer role performs a subset of all the engineering activities...
Thales
30 Oct, 2026
Full Time
Senior Systems Engineer
Thales Crawley, UK
Location: Crawley, United Kingdom Thales is a global technology leader with more than 83,000 employees on five continents. With over 7,500 people in the UK, operating across defence, space, aerospace, and digital security, we help build a future we can all trust. Thales supports the security and stability of our nation by providing extraordinary technology to our customers, as well as delivering social value to the UK with our products and services. Senior Systems Engineer Crawley – Hybrid Thales Intelligence, Surveillance and Reconnaissance (ISR) UK is a principal supplier of UAS, EW and Radar equipment to the UK armed forces, as well as an exporter of these capabilities worldwide. ISR is a highly complex product development environment, focusing on delivering cutting edge products in the UAS and EW Fields. We are recruiting for a Senior Systems Engineer with opportunity to work across multiple complex programmes. Performing subsets of all the engineering activities...
Thales
30 Oct, 2026
Full Time
Systems Engineer
Thales Crawley, UK
Location: Crawley, United Kingdom Thales is a global technology leader with more than 83,000 employees on five continents. With over 7,500 people in the UK, operating across defence, space, aerospace, and digital security, we help build a future we can all trust. Thales supports the security and stability of our nation by providing extraordinary technology to our customers, as well as delivering social value to the UK with our products and services. Systems Engineer Crawley - Hybrid Thales Intelligence, Surveillance and Reconnaissance (ISR) UK is a principal supplier of UAS, EW and Radar equipment to the UK armed forces, as well as an exporter of these capabilities worldwide. Due to growth, we are actively recruiting for a Systems Engineer. This is a permanent position to work on projects delivering next generation Electronic Warfare (EW), Radar or UAS solution, within the Intelligence, Surveillance and Recognisaince (ISR) Business line. As Systems Engineer you would...
Thales
25 Oct, 2026
Full Time
DDCC Head of Engineering
Thales Crawley, UK
Location: Crawley, United Kingdom Thales is a global technology leader with more than 83,000 employees on five continents. With over 7,500 people in the UK, operating across defence, space, aerospace, and digital security, we help build a future we can all trust. Thales supports the security and stability of our nation by providing extraordinary technology to our customers, as well as delivering social value to the UK with our products and services.  DDCC Head of Engineering Crawley – Hybrid (Relocation support can be provided) About cortAIx and Thales:  At Thales, we focus on building and delivering robust, real-world AI and Data solutions that make a tangible impact for our customers—and society at large. Our global cortAIx initiative unites over 600 AI and data specialists dedicated to developing trusted, operationally effective AI-powered systems for some of the most challenging and complex environments. In the UK, CortAIx is accelerating this mission by...
Thales
01 Nov, 2026
Full Time
Embedded Systems & Integration Engineer - UAS
Thales Reading, UK
Location: Reading, United Kingdom Thales is a global technology leader with more than 83,000 employees on five continents. With over 7,500 people in the UK, operating across defence, space, aerospace, and digital security, we help build a future we can all trust. Thales supports the security and stability of our nation by providing extraordinary technology to our customers, as well as delivering social value to the UK with our products and services. Embedded Systems & Integration Engineer - UAS Reading, Bristol, Crawley ideally, but flexible on location Thales Intelligence, Surveillance and Reconnaissance (ISR) UK is a principal supplier of Electronic Warfare (EW), Radar and Uncrewed Aerial Systems (UAS) equipment to the UK armed forces, as well as an exporter of these capabilities worldwide. We’re recruiting for an experienced Embedded Systems / Software Integration Engineer to develop and integrate software for an edge-computing system based around NVIDIA...
TT
28 Oct, 2026
Permanent
Ecologist - Consultant to Principal level
Tetra Tech Southampton, UK
Are you an ecologist with a desire to put your expertise to good use across a diversity of projects with the support of an experienced team? Are you ambitious to develop your technical skills and career in line with a defined career pathway that follows the route you choose? Do you want to find a work/life balance despite the nocturnal nature of bat work? The Company: As Tetra Tech builds on its demonstrable track record as one of the leading global environmental consultancies, we are seeking a ecologists of all levels to strengthen our existing expertise. With ambitions to grow our UK presence to emulate the success of the global business, we are looking for dynamic ecologists to join our established network of over 95 ecologists. As a multidisciplinary consultancy, we work closely with colleagues from other teams including planning, placemaking, engineering, transportation and asset management including through the identification of opportunities, tendering and project...
  • 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 DI Jobs