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  • £110k - £120k per annum

     ...extraordinary! This is not your average engineering role. We want a game-changer, a maverick...  ...shape the future of technology. As a Principal Engineer, you'll be the lead technical voice...  ...protection are never compromised, and performance and cost are optimised in a cloud-first... 
    Performance
    Permanent

    LinuxRecruit

    London
    more than 2 months ago
  • £36k - £46k per annum

     ...customer expectations Ensure escalation and feedback drives high performance throughout the company Maintain documentation and technical...  ...Network Support More: At Telent, were empowering our Engineering Team to innovate and provide solutions that connect and... 
    Performance
    Full-time

    Telent Technology Services Ltd

    Farnborough, Hampshire
    8 hours ago
  • £67k - £85k per annumEstimated
     ...squads and domains. Define and enforce engineering standards, reference architectures, and...  ..., fostering a collaborative and high-performance culture to achieve project goals and meet...  ...both internally and externally. Act as principal contact point for key clients and... 
    Performance
    Long-term contract
    Permanent

    Barclays

    London
    more than 2 months ago
  • £50k - £60k per annum

     ...Are you an experienced civil engineer with deep expertise in drainage, highways, and infrastructure...  ...to join our Infrastructure team as Principal Engineer and Drainage Specialist. In...  ...design, while supporting operational performance and client engagement. Key Responsibilities... 
    Performance
    Hybrid working
    On-site
    Flexible hours

    RSK Group

    Abbey Wood, Greater London
    more than 2 months ago
  • £66k - £106k per annum

     ...Abuse Regulation (desired) Experience in performance optimisation and profiling (desired)...  ...Surveillance and Record Keeping Lead engineering standards: architecture reviews, vendor...  ...offers an exceptional opportunity for a Principal Engineer to play a central technical leadership... 
    Performance
    Full-time

    Marlin Selection

    London
    8 hours ago
  •  ...Principal Engineer When you join our Engineering Team at Telent, you'll be empowered to innovate and drive common solutions, working closely...  ...are proud of the impact their work makes. Come join a high-performing team doing complex and critical work. Help build and keep the... 
    Performance
    Full-time

    Telent

    Rushmoor, Hampshire
    9 days ago
  • $145k - $255k per annum

     ...Express, HSBC, and Ericsson Ventures. We're looking for a principal engineer to own our authentication service. Authentication is at the root...  ...you make here have real consequences: for security, for performance, and for how the system evolves over time. You'll work with a... 
    Performance
    Long-term contract

    Menlo Security Inc.

    Bracknell, Berkshire
    21 days ago
  •  ...subject to strict security and safety requirements, we provide our customers with engineering and project management services, as well as digital services and solutions to optimize the performance of complex infrastructure projects throughout their life cycle. The Group is... 
    Performance
    On-site

    ASSYSTEM

    Warrington, Cheshire
    5 days ago
  • £56k - £74k per annumEstimated
     ...our mission is to empower and protect lives. Join us as a TL Principal Engineer – Flight Physics at either our MOD Boscombe Down or Farnborough...  ...have a disability or health condition that may affect your performance in certain assessment types, please speak to your Recruiter about... 
    Performance
    Permanent
    Full-time

    QinetiQ

    Farnborough, Hampshire
    3 days ago
  • £55k - £75k per annumEstimated
     ...innovation. To support this next phase, we’re looking for a Principal Engineer to take ownership of system design, platform evolution and...  ...steward of the platform, ensuring scalability, reliability, performance, and cost efficiency as complexity increases Design and evolve... 
    Performance
    Long-term contract
    Temporary
    Summer work
    Hybrid working
    On-site
    Flexible hours

    Picnic Media Limited

    London
    a month ago
  • £47k - £63k per annumEstimated
     ...Are you an experienced Principal Rendering Engineer ready to shape the visual future of AAA games? This is an opportunity to join an established...  ...on an ambitious, unannounced AAA project, where quality, performance, and player experience sit at the heart of everything... 
    Performance
    Full-time
    Hybrid working
    Flexible hours

    Skillsearch Limited

    Guildford, Surrey
    5 days ago
  • £109k - £143k per annumEstimated
     ...Principal Frontend Engineer – Build the Future of Cox Automotive Europe Location: Manchester - Hybrid Are you a visionary engineer who loves...  ...cross‑functional teams to create scalable, secure, high-performance systems and micro-frontend architectures. Hands-on Engineering... 
    Performance
    No agency
    Hybrid working
    Remote

    Cox Automotive

    North West England
    more than 2 months ago
  • £110k - £147k per annumEstimated
     ...Position Overview Job Title Principal Engineer (Full Stack) — Go / GCP / AI Location London Corporate Title Vice President...  ...sets technical direction through doing, and helps scale a high performance product engineering culture. What we’ll offer you A healthy... 
    Performance
    Full-time
    Hybrid working
    Remote
    Flexible hours
    London
    3 days ago
  • £55k - £73k per annumEstimated
     ...innovations our mission is to empower and protect lives. Join us as a Principal FEA Engineer at our Haslar site, where you will have the opportunity to...  ...have a disability or health condition that may affect your performance in certain assessment types, please speak to your Recruiter... 
    Performance
    Permanent
    Full-time
    Hybrid working

    QinetiQ

    Gosport, Hampshire
    12 days ago
  • £67k - £86k per annumEstimated
     ...team of over 50,000 planners, designers, engineers, scientists, digital innovators, program...  ...’s what you’ll do: We are seeking a  Principal Rail RAMS Engineer  to join our dynamic...  ...and methodologies to optimize rail system performance. Mentor and guide junior engineers,... 
    Performance
    Long-term contract
    Full-time
    Hybrid working
    On-site
    Remote

    AECOM

    London
    2 days ago
  • £73k - £93k per annumEstimated
     ...team of over 50,000 planners, designers, engineers, scientists, digital innovators, program...  ...for a highly skilled and experienced Principal Façade Engineer to join our growing and...  ...understanding of system design considerations, performance analysis of the systems and testing... 
    Performance
    Long-term contract
    Full-time
    Hybrid working
    On-site
    Remote
    Flexible hours

    AECOM

    London
    19 days ago
  • £55k - £72k per annumEstimated
     ...infrastructure design. Context We are seeking a Senior/Principal Engineer with experience in the Highways/Development Infrastructure...  ...the development of the team, projects, clients, and business performance whilst also leading projects. Missions/Main Duties Responsible... 
    Performance
    Hybrid working
    Work from home
    Flexible hours
    Manchester
    10 days ago
  • £61k - £81k per annumEstimated
     ...Job Title:                     Principal Engineer Location:                     Devonport, Plymouth, Rosyth Fife or Bristol Compensation...  ...and developing engineering talent to build capability and performance. Qualifications for the Principal Engineer: Degree... 
    Performance
    Permanent
    Full-time
    Hybrid working
    Flexible hours
    1 day/week

    Babcock

    Devonport, Devon
    4 days ago
  • £60k - £65k per annum

     ...Principal Hydraulic Engineer Warrington, Cheshire (Hybrid Working) Full Time | Permanent | 37 hours per week Competitive Salary + £5,00...  ...engineering principles to support project design and operational performance improvements. ·Provide cost estimates, programme inputs,... 
    Performance
    Long-term contract
    Permanent
    Full-time
    Hybrid working
    On-site
    Flexible hours

    Carrington West

    Warrington, Cheshire
    26 days ago
  • £63k - £82k per annumEstimated
     ...Position – CE&I Principal Protection Engineer (2608) Location – Hinton House 1 day per week, 4 days remote with occasional site visits Arrangement...  ...sites in the UK and internationally. Nuvia is a performance-driven company that is committed to the development of its... 
    Performance
    Permanent
    Hybrid working
    Remote

    VINCI

    Warrington, Cheshire
    a month ago
  • £54k - £71k per annumEstimated
     ...Description: Leonardo is looking for a 3rd Line Wintel Infrastructure Engineer to join our collaborative and skilled team supporting a...  .... Use monitoring tools to proactively optimize system performance and ensure high availability. Create and maintain detailed technical... 
    Performance
    Permanent
    Part-time
    Hybrid working
    Flexible hours

    Leonardo Worldwide Corporation

    London
    more than 2 months ago
  •  ...build the future of travel with us? About the Role As a Principal Engineer , you’ll play a key role in transforming how millions of...  ...legacy systems, and enhance our search functionality — ensuring performance, scalability, and innovation across the platform. What you... 
    Performance
    Full-time
    Hybrid working
    On-site

    On the Beach

    Manchester
    a month ago
  • £59k - £75k per annumEstimated
     ...Principal Engineer (Manchester - Hybrid)  About Finova   Finova is the UK's largest mortgage and savings technology provider, powering one...  ...cloud-native architectures - ensuring we deliver resilient, performant, and future-proof solutions for our customers.  What will you... 
    Performance
    Full-time
    Hybrid working
    Flexible hours

    Finova

    Manchester
    4 days ago
  • £80k per annum

     ...based architectures ~ Experience with performance tuning and optimisation ~ Degree in Computer...  ...major technical decisions across engineering teams Review and approve complex technical...  ...our SaaS platform and seeking a Principal Engineer / Architect to take ownership of... 
    Performance
    Long-term contract
    Full-time
    Hybrid working

    Fruition Group

    York, North Yorkshire
    8 hours ago
  • £52k - £70k per annumEstimated
     ...the opportunity to apply for one of these roles. Principal Examiner - BTEC Nationals Engineering (Unit 3 Engineering Product Design and Manufacture)...  ...required. • Submitting reports on the series/candidate performance. • Providing support and written responses to... 
    Performance
    Permanent
    Full-time
    Remote

    Pearson Plc

    Westminster, Greater London
    more than 2 months ago
  • £58k - £79k per annumEstimated
     ...EMPEL Systems We are currently looking for a Senior/Principal Systems Engineer to lead system definition, architecture, and governance across...  ...authority for system‑level trade‑offs, integration, and performance targets. Coordinate cross‑functional inputs between hardware... 
    Performance
    Permanent
    Milton Keynes, Buckinghamshire
    more than 2 months ago
  • £75k - £103k per annumEstimated
     ...bring their full selves to work. About the Role As a Principal Software Engineer for Security, you’ll tackle our most challenging technical...  ...and review architectures and system designs, balancing performance, maintainability, and security, across the whole Beamery product... 
    Performance
    Remote job

    Beamery

    London
    more than 2 months ago
  • £45k - £55k per annum

     ...design proving and testing methodologies Relevant degree in engineering or a related field Responsibilities: Lead the design and...  ...Conduct design proving and testing to validate product performance Provide support and guidance to team members during the development... 
    Performance
    Full-time

    Systems Engineering and Assessment Limited

    Barnstaple, Devon
    8 hours ago
  • £131k - £168k per annumEstimated
     ...Job Title:                     Principal Engineer – Weapons, Ordnance, Munitions and Explosives Specialist Location:...  ...Ministry of Defence policy, and the safety and environmental performance of our platforms. This is work with purpose — supporting defence... 
    Performance
    Permanent
    Full-time
    Hybrid working
    Flexible hours
    1 day/week

    Babcock

    Kensington, Greater London
    18 days ago
  • £80k per annum

     ...C++ More: We are a company operating in the sports performance technology space, developing technology used in elite sport...  ...performance analysis, and athlete development. We are seeking a Principal Firmware Engineer who will play a key role in our growing team and product... 
    Performance
    Full-time

    APRIL QUEST LIMITED

    Long Eaton, Derbyshire
    8 hours ago