Role: Principal Engineer Salary: £80,000–£95,000Location: ManchesterThis is a highly hands-on technical role, ideal for a strong Senior Engineer, Principal Engineer or existing Te...Read More>>.

Principal Engineer - Product SafetyBarrow based (Mainly remote 2-3 days per month on site) £74.68 per hour Umbrella inside IR35 12 Month Contract Currently recruiting for a Principal Engineer - Product Safety to work wi...Read More>>.

Job Description\n Job Title: Principal Engineer – Electrical Engineering (Control and Instrumentation)\n Location: Barrow-In-Furness,Filton,Frimley,Broad Oak,Brough,Wey...Read More>>.

Job DescriptionSafran is an international high-technology group operating in the fields of aerospace (propulsion, equipment and interiors), space and defense. Its mission is to contribute sustainably to a safer world, where air transpo...Read More>>.

Job DescriptionAbout Us\n\nTÜV Rheinland Solutions Rail Division, Derby forms part of TÜV Rheinland's wider technical and engineering capability serving the rail industry. Located in Derby, one of the UK's...Read More>>.

Overview As a Principal Software Engineer you will provide technical leadership across the technology function, shaping architectures and engineering standards for scalable, secure enterprise applications. You’ll mentor engineers, partner...Read More>>.

Overview As a senior engineering leader at Very, you shape how we build scalable, customer‑facing software and cloud platforms. You’ll influence multiple squads, champion engineering standards, and drive architectural decisions with pro...Read More>>.

Overview In this role you will lead software development for advanced flight control and actuation systems, shaping architecture and ensuring safety-critical compliance. You will mentor teams and collaborate with hardware and test engineers...Read More>>.

Overview As Principal Engineer, you will lead the strategy and delivery of mission-critical AI platforms within Moody's Digital Content and Innovation team. You will shepherd multi-team efforts from prototype to production, shaping scalable...Read More>>.

Overview In this role, you accelerate secure, high-quality software delivery across Leonardo’s defence and security programmes. You will help shape and evolve the enterprise DevSecOps capability to enable teams to deliver features rapidly...Read More>>.

Overview As a Principal Software Engineer, you will lead the design and delivery of embedded software for safety-critical systems in aerospace. You will shape architectures, drive integration and verification, and mentor engineers to ensure...Read More>>.

Overview As Principal AI Engineer you lead the embedded Innovation Squad, driving AI architecture and delivery from discovery to production. You will harden prototypes, design reusable agentic AI patterns, and guide integration with enterpr...Read More>>.

Overview As Smartgrids Technical Lead, you guide technical delivery for distribution grid, private networks and renewable connections. You will shape multidisciplinary projects, mentor engineers, and uphold safety and quality targets. Your...Read More>>.

Overview As an OLE Principal Engineer in the Rail North unit, you will lead the technical design and delivery of overhead line projects, ensuring quality, cost, and schedule targets are met. You’ll act as a technical lead, coordinating wi...Read More>>.

Overview As Principal Engineer, you’ll lead and apply expert geotechnical and tunnel design knowledge to complex European projects, guiding multidisciplinary teams and ensuring delivery with safety, quality and sustainability in mind. You...Read More>>.

Overview In this role you will lead civil and structural design for complex rail infrastructure, shaping major projects across London and Bristol. You will provide technical direction within multidisciplinary teams and ensure quality across...Read More>>.

Overview As a Principal Engineer at LSEG, you will design and maintain enterprise-grade platforms across on‑prem and cloud environments. You will shape secure, scalable systems and guide architecture decisions within a cross‑functional...Read More>>.

Job Title Senior Principal Software Engineer Reporting To Director, Eng. Sys. Def. & Integ. Work Schedule Hybrid – Tewkesbury, GBR About Moog Aircraft Group Moog Aircraft Group is a wor...Read More>>.

Senior Principal Software Engineer Location: Leatherhead, UK Do you love solving complex technical challenges and inspiring others to deliver impactful solutions? This is a great job for someone who thrives in a dynamic e...Read More>>.

Bring more to life. At IDBS, one of Danaher’s 15+ operating companies, our work saves lives—and we’re all united by a shared commitment to innovate for tangible impact. IDBS helps BioPharma organizations unlock the po...Read More>>.

About Fastmarkets Fastmarkets is an industry‑leading price‑reporting agency (PRA) and information provider for global commodities, offering price data, news, analytics and events for agriculture, forest products, metals and mining,...Read More>>.

Principal Software Engineer (AI) Department: Tech - AI and Data Engineering Employment Type: Permanent - Full Time Location: Oxford, UK Description Please note that we are open to c...Read More>>.

At lowRISC we believe that open source development can transform the semiconductor industry. To help achieve this vision of production‑ready, commercial‑grade chips and silicon building blocks, we employ a software team with a wide range of...Read More>>.

Principal Software Engineer (DevSecOps) - Salary Range: £54,000 - £70,000Your ImpactAs a Principal Software Engineer (DevSecOps), you will play a key role in accelerating the delivery of secure, high-quality software ac...Read More>>.

Salary: £100,000 - 100,000 per yearRequirements:We require applicants to hold active or recently active SC or DV clearance.We are looking for strong experience delivering production systems in complex envir...Read More>>.

Your Impact As a Principal Software Engineer (DevSecOps), you will play a key role in accelerating the delivery of secure, high-quality software across Leonardo's defence and security programmes. You will help shape and evolve our ente...Read More>>.

Role Purpose We are seeking a highly experienced Principal Software Engineer to provide technical leadership across our technology function, driving the design, delivery, and continuous improvement of enterprise applications and digita...Read More>>.

Moog is a performance culture that empowers people to achieve great things. Our people enjoy solving interesting technical challenges in a culture where everyone trusts each other to do the right thing. For you, working with us can mean deeper...Read More>>.

nineDots.io is seeking a Principal Engineer to help define how the world decides what software can be trusted. You will tackle software supply chain trust, building systems to verify provenance, security, and governance across pipelines and artifa...Read More>>.

ABOUT US:LSEG (London Stock Exchange Group) is more than a diversified global financial markets infrastructure and data business. We are dedicated, open-access partners with a dedication to excellence in delivering the services our cus...Read More>>.

Principal Engineer – Photolithography Job Summary We are seeking a highly skilled and innovative Principal Engineer specialising in photolithography processes to support advanced photonics R&D and manufacturing....Read More>>.

Senior/Principal Software EngineerApplication Deadline: 30 October 2026Department: Software EngineeringEmployment Type: PermanentLocation: Cheltenham (Hybrid)Compensation:...Read More>>.

We’re building the UK's next generation engineering powerhouse, providing critical technology that strengthens national security and resilience. We specialise in turning advances in sensing, AI, and communications into operational capabil...Read More>>.

ZoomInfo is where careers accelerate. We move fast, think boldly, and empower you to do the best work of your life. You’ll be surrounded by teammates who care deeply, challenge each other, and celebrate wins. With tools that amplify your impact...Read More>>.

Roche is seeking a Software Engineer (Principal / Senior Principal) to lead the design and development of modern computational and data ecosystems enabling drug discovery. You will work across interactive tooling, scalable data platforms, and AI-p...Read More>>.

Our MissionAt Palo Alto Networks we’re united by a shared mission—to protect our digital way of life. We thrive at the intersection of innovation and impact, solving real-world problems with cutting-edge technology and bold thinking....Read More>>.

Shift Pattern:Standard 40 Hour Week (United Kingdom)Scheduled Weekly Hours:40Corporate Grade:C - Vice PresidentReporting Line:(UK Division) Information TechnologyLocation:UK-...Read More>>.

Are you an experienced civil engineer with deep expertise in drainage, highways, and infrastructure design? Do you want to lead technically challenging projects, shape strategy, and drive excellence in sustainable infrastructure across the UK?...Read More>>.

Principal Telecoms Engineer (Design) Location: York or Cumbernauld (other regional office can be considered including Warrington, Pontyclun, Swanley, Barnsley) Business Unit: Design & Engineering – Telecoms Design...Read More>>.

Electrical Technical Principal – HV Power TransmissionLocation: UKEmployment Type: Full-timeSalary: Competitive, dependent on experienceAbout the CompanyOur clien...Read More>>.

Not every software leadership role is about managing people and not every technical role gives you the chance to shape solutions, influence clients and still keep your hands on the technology.This is different!Here is an opportunity...Read More>>.