176 to 200 of 214 Principal Engineer Jobs in the UK

Locations: London (must be willing to travel to client sites throughout the UK on an ad hoc basis) Level: Manager Please Note: Any offer of employment is subject to satisfactory BPSS and SC security clearance ...

about: At Vitality, our Test Engineers work at the heart of our engineering teams, embedding quality from ideation through to release. As a Principal Test Engineer, youll influence how we test at scale, modernise automation frameworks, and guide teams towards industry-leading standards. Key Actions Lead and implement ...

production environments Comfortable owning architectural decisions and operating with autonomy Security-first mindset and multi-tenant data isolation experience Tech lead or founding engineer experience is a strong plus Why Us: A rare opportunity to join a greenfield startup with scale-up backing, an engaged founding team, and real ...

Principal AI/Data Engineer (Contract): Length: 3 months initally (extension is likely) Start Date: ASAP Location: London, Hybrid (1 day per week) Pay Rate/Determination: £525-575 p/d | Outside IR35 About: Opus is supporting a UK-based digital consultancy partnering with organisations to design … build and scale high-impact digital and AI-driven products, with a strong people-first culture. The role: A hands-on Principal AI/Data Engineer contract to assess, shape and deliver improvements to a live AI platform across two critical workstreams.You'll be responsible for: Assessing ...

claim cash back on everyday healthcare expenses such as optical, dental, health and wellbeing and more. The opportunity: This opportunity is for a Principal Test Engineer to join the Manufacturing organisation supporting test system introduction and test and diagnostics of electrical/electronic weapon systems and sub-assemblies ...

Title: Senior/Principal Platform Systems Mechanical Engineer Location: Barrow-In-Furness (Onsite) Salary: Competitive Who we are: Join BAE Systems and youll be part of something bigger. As a valued member of our global colleague network, youll bring your unique skills and perspectives to help pioneer progress ...

seeking a Principal Hardware/Electronics Engineer to provide technical leadership across complex electronic hardware programmes. In this role, you ll shape hardware architecture decisions, influence system level design, and ensure solutions are robust, scalable, and fit for purpose in demanding operational environments. This position combines deep technical … level Strong background in requirements definition, architectural design, and technical governance Confidence acting as a technical decision maker and advisor across multiple projects Chartered Engineer status (or equivalent) is desirable, with support available if not yet attained Salary and benefits: £60,000 £80,000, depending on experience Hybrid ...

client is seeking a Principal FPGA Firmware Engineer to deliver Firmware for complex digital systems that meet challenging future customer requirements. This is a contract position for intial 12 month duration, the work is based in Luton, Bedfordshire and will need onsite working most of the time. Skills ...

looking for a Principal Audio Software Engineer to lead the development of advanced audio processing solutions for cutting-edge communication devices. This is a high-impact, senior technical role where you will shape the audio performance of products used in real-world, high-pressure environments. You will take ...

hiring a Principal Full-Stack Engineer to join one of the largest banking institutions in the U.S. - a highly complex, high-impact environment where engineering decisions truly matter. This role is ideal for someone who combines deep backend expertise in Java with strong frontend capabilities in React … trusted partner to Fortune 1000 companies. If you’re excited about building at scale, working with cutting-edge AI, and operating at a principal level - let’s connect. ...

Principle Java Engineer • Salary to £70k + Company Options Scheme • Hybrid working between your home, their offices (London Vauxhall) & client sites. NB: Please only apply if you are a UK National and able to achieve SC (ideally DV) clearance i.e. you have at least 5 years residency … fast and looking for bright, dynamic people to help build their business. Role They’re looking for an experienced (Principle/Team Lead) Java Engineer to join their implementation team. You’ll work across Camunda BPMN/DMN process automation, API integration, and microservice orchestration — helping their public-sector ...

largest banking institution in the United States that is commonly cited as being too big to fail. We are looking for a highly skilled Principal Full Stack Developer with expertise in Java (Backend) and React (Frontend) to join our team. with strong LLM experience ( Claude preferred). Key Responsibilities ...

global automotive systems industry leader is seeking a Principal AI Software Engineer (Java) to work remotely on AI projects. This role requires deep expertise in Java, Spring, and AWS, with hands-on experience in production-grade AI systems. Responsibilities include implementing AI solutions and creating deployable AI agents. ...

Role Overview: Location: 1 day per month in Edinburgh Package: £500 - £600pd Outside IR35 Duration: Initial 3 month contract - ASAP Start What they are looking for: Microsoft stack/.Net experts Experience with AI engineering ...

have an opening for a Principal Civil Infrastructure Engineer to join our clients lively Berkshire office. You ll be joining a team of 15 can expect to work on civil infrastructure, transport planning, and flood and water management & sustainable solutions for developer clients throughout the UK. You will ...

Rail Team are currently recruiting for a Principal Fire Systems Engineer to work full time in Central London. This will be working for a well established Rail contractor who are working on one of the biggest projects in the UK. Don't miss out! Fire Detection Systems Design … Engineer - Role Summary This role focuses on leading the design and construction of Fire Detection and Alarm (FD&A) systems across medium to large infrastructure projects in Rail, Highways, HS2, and Power sectors . It demands technical expertise, stakeholder coordination, compliance assurance, and leadership of junior team members. ...

assessment and analysis activities Management of junior engineers and contribute to continuous improvement initiatives What we're looking for from you: An experienced systems engineer who is pro-active and readily able to work autonomously Analytical Systems thinkers that are able to develop and communicate new concepts and architectures ...

Fimador are looking for a Principal DevOps/SRE Engineer to help shape, scale, and operate a high-availability AWS and Linux platform. This is a senior IC role where you’ll combine deep technical expertise with technical leadership, mentoring, and a strong focus on operational excellence. ...

seeking an experienced and highly motivated Principal Product Assurance Engineer to join the Quality Assurance team in Bolton, providing support to the Manufacturing teams. Salary : Circa £50,000 depending on experience Dynamic (hybrid) working : 4 - 5 days per week on-site due to workload classification Security Clearance : British ...

Control Systems Engineer Position is with a global multi disciplined Engineering solutions provider We are seeking an experienced C&I Engineer with a strong systems-engineering background to support major projects across the energy sector, including power generation, CCGT, utilities, oil & gas, and process industries. This role … ideal for an engineer who thrives in technically demanding environments and has hands-on experience developing and delivering advanced control system solutions for large-scale energy assets. The ideal candidate will bring practical expertise in control system architecture, control philosophy, and control narrative development, along with familiarity with leading ...

clear, reliable communication can save lives, and they are continuing to invest heavily in next-generation technology. The Role We are looking for a Principal Audio Software Engineer to lead the development of advanced audio processing solutions for cutting-edge communication devices. This is a high-impact, senior ...

looking for a ‘bare metal’ embedded software engineer to join our clients team developing the next generation of airborne integrated communication system for the Global Combat Air Programme/Tempest aircraft Activities: Development and coding of software solutions for Embedded, Real Time and Safety Critical application software In detail ...

engineering lifecycle Capable of working on-site 4 to 5 days a week Ability to obtain SC clearance If you are a skilled Systems Engineer with experience in MATLAB and a passion for the Defence & Security sector, this could be the perfect opportunity for you. Apply now to become ...

At CesiumAstro , we are developers and pioneers of out-of-the-box communication systems for satellites, UAVs, launch vehicles, and other space and airborne platforms. We take pride in our dynamic and cross-functional work ...

operational data across multiple systems and third-party services. Following recent funding and strong traction, they’re scaling their engineering team and hiring a Principal Engineer. The Role This is a hands-on senior IC role with a strong backend focus. You’ll be writing production code daily, shaping ...