About Nscale Nscale is the GPU cloud engineered for AI. We provide cost‑effective, high‑performance infrastructure for AI start‑ups and large enterprise customers. Nscale enables AI‑focused companies to achieve superior results...Read More>>.

Poutrix is seeking an experienced Principal Engineer to join our Enabling Infrastructure team based in Manchester. This role involves managing development led infrastructure projects across Mobility, Places, and Resilience, serving various market...Read More>>.

About UnifeyeUnifeye is a delivery-led, Databricks-first consultancy helping organisations unlock the full value of their data and AI.We're a lean, high-growth team based in London, working at the intersection of data, technolog...Read More>>.

Primary Location: UK - Birmingham - Colmore PlazaCompany DescriptionWork with Us. Change the World.At AECOM, we're delivering a better world. Whether improving your commute, keeping the lights on, provid...Read More>>.

This position allows you to join a fast-growing technology organisation focused on the critical migration and architectural evolution of our .NET services from AWS to Azure. If you are passionate about cloud-native transformation and want to le...Read More>>.

Highways and Transportation Senior / Principal Engineer Metis is looking to fill a Highways and Transportation Senior/Principal Engineer role to provide leadership and technical support for our growing Highways and Transportation pipe...Read More>>.

Base Location:For this role, we require successful applicants to be basedfromone of our Scottish locations – Perth, Glasgow,Aberdeenor Inverness and you'll be expected to spend 50% of your working week in the officeSalary:...Read More>>.

Shape a faster, smarter, safer future. You might know us for the great work we do across our wide variety of projects. We're proud to say it's thanks to our people's diversity of thought, expertise and knowledge. And when you join us,...Read More>>.

Atos is the Atos Group brand dedicated to AI-powered, secure, end-to-end digital services. Atos designs, develops, and operates critical digital environments that drive performance, resilience and sovereignty, helping public and private organiz...Read More>>.

Around the world, SYSTRA’s specialists plan, design, integrate, test, commission, project manage and deliver mass transit and mobility solutions that are relied on by more than 50 million people every day.For more than 60 years, the Gr...Read More>>.

About SkyscannerEveryone loves travelling, but planning is not without its challenges. That's why we've spent 20 years building tools that turn travel-planning chaos into a breeze. Today, around 160 million travellers count on us...Read More>>.

Raytheon UK is seeking a Principal Software Engineer in London for a permanent, onsite position. You will join a cross-functional software dev team delivering critical software for defence and aerospace projects.Candidates must hold an acti...Read More>>.

Were currently recruiting 5 Principal Engineers Support Engineering (Training Services) to support a Submarine Programme. This is a predominantly remote/hybrid position, with occasional travel to site as required by the programme....Read More>>.

Assystem is seeking a Technical Lead to drive the successful technical delivery of defence projects. Reporting to the Technical Director, you will lead multidisciplinary engineering teams, ensuring technical excellence and strong client relationsh...Read More>>.

Technical Lead ( Senior Principal Engineer)Full-timeType of contract ASSYSTEM: PermanentASSYSTEM Sector: DefenceToday, Assystem is among the top three independent nuclear e...Read More>>.

Elastic, the company behind Elasticsearch, is seeking a Principal Software Engineer for the Elasticsearch - Search Infra team. You will define, direct, and build the next generation of Elasticsearch capabilities, focusing on indexing, retrieval, a...Read More>>.

About usEncord is the universal data layer for AI that helps 300+ AI teams train and run models on the right data. Our platform indexes, curates, annotates, and evaluates data across the full AI lifecycle, from development through production. Trus...Read More>>.

Elastic, the Search AI Company, enables everyone to find the answers they need in real time, using all their data, at scale — unleashing the potential of businesses and people. The Elastic Search AI Platform, used by more than 50% of the Fortune...Read More>>.

Edinburgh or London UK-based | Edinburgh or London | Approximately 1 day per week Build the future, in the real world. We’re looking for a Principal Engineer to join us in a Forward Deployed role — w...Read More>>.

End Date Wednesday 21 October 2026 Salary Range £84,624 - £126,936 We support flexible working - click here for more information on flexible working options Flexible Working Options Hybrid Working, Job ShareJob Description Summary...Read More>>.

Requisition ID12683-Posted07/10/2026-Consulting-Birmingham - International Design Hub, Colmore Plaza Amey are a leading provider of full life-cycle engineering, operations and decarbonisation solutions, for trans...Read More>>.

Principal Engineer Full Time | £74,781.00 to £87,244.00 dependant on experience| OSHQ Southampton | Hybrid workingWho we areWe are Ordnance Survey, Great Britain’s national mapping service and a global leader in geospatial data...Read More>>.

We are recruiting an Infrastructure Director / Principal Engineer for a highly regarded, specialist M&E and building services organisation. This is a senior technical leadership position with overall responsibility for the strateg...Read More>>.

Candour Solutions in Manchester is seeking a Principal Engineer who will own the platform architecture and delivery while remaining hands-on. You will shape technical direction, mentor engineers, and collaborate closely with the CTO to set enginee...Read More>>.

Role: Principal EngineerSalary: £80,000-£95,000Location: Manchester This is a highly hands-on technical role, ideal for a strong Senior Engineer, Principal Engineer or existing Tech Lead who wants to stay cl...Read More>>.

Candour is seeking a Principal Engineer in Manchester to own architecture and lead delivery while staying hands-on with code. You will shape the platform, drive technical direction, and collaborate with the CTO to raise engineering standards. The...Read More>>.

Role: Principal Engineer Salary: £80,000–£95,000 Location: Manchester This is a highly hands-on technical role, ideal for a strong Senior Engineer, Principal Engineer or existing Tech Lead who wants to...Read More>>.

At Amentum, we're not just solving problems; we're engineering the future. Our team is driven by an unyielding commitment to innovation, integrity, and collaboration, tackling some of the most significant challenges in science, security, and susta...Read More>>.

CreateFuture, a UK digital consultancy with offices in Leeds, is seeking a Principal Engineer to lead high-impact engineering programmes and shape scalable AI-enabled platforms.You will own system architecture, oversee delivery across teams...Read More>>.

Around the world, SYSTRA's specialists plan, design, integrate, test, commission, project manage and deliver mass transit and mobility solutions that are relied on by more than 50 million people every day.For more than 60 years, the Group has b...Read More>>.

Job Description Summary Tätigkeiten, die darauf abzielen, durch Anwendung wissenschaftlicher und technischer Methoden zu beweisen, dass ein Konzept gültig oder technisch machbar ist. Die Arbeit in dieser Familie hat in der Reg...Read More>>.

We’re looking for a Principal Engineering LeadAbout BritAt Brit, we believe that the uncertainty of the future should never stand in the way of progress. That’s why we exist. To help people and businesses face the future and th...Read More>>.

Lead the design and engineering of a cloud-agnostic Identity and Authorization Platform that secures users, services, APIs, AI agents, and data across a multi-tenant SaaS platform. Unlike traditional IAM roles, this position focuses heavily...Read More>>.

Technify Talent in Newbury is seeking a Principal Engineer to act as technical authority for complex, real-time distributed systems. This hands-on, IC role requires staying close to code and untangling hard problems with the team.You'll own...Read More>>.

Location: Newbury (hybrid - reactive dependent on workload)About the RoleWe're looking for a Principal Engineer to act as technical authority and right hand to our Head of Engineering. This is a hands-on, individual-contribu...Read More>>.

Are you looking for a unique opportunity to be a part of something great? Want to join a 17,000-member team that works on the technology that powers the world around us? Looking for an atmosphere of trust, empowerment, respect, diversity, and comm...Read More>>.

As Principal Engineer, you'll be responsible for defining and championing appropriate engineering practices across product development, ensuring our teams consistently deliver brilliant, commercially successful products. You'll act as a tru...Read More>>.

Tharsus is seeking an accomplished Principal Engineer to define and champion engineering practices across product development, ensuring teams deliver brilliant, commercially successful products.You’ll act as a trusted technical authority,...Read More>>.

25 days holiday, plus UK public holidays Location: Hybrid (2-3 days per week in our Canary Wharf office) Salary: £85 - £90k per annum Reports to: Director of Product Engineering Join U...Read More>>.

We are seeking a Sr. Firmware Engineer to write firmware for our Coolant Distribution Unit real-time controller platform and assist with development on other Vertiv Linux-based platform(s). The candidate should possess broad and deep knowledge in...Read More>>.

Responsibilities:Write, maintain and own technical specifications required for civil works associated with substation, e.g. substation buildings, bunds, trenches, etc. and review existing specifications and update them based on lessons le...Read More>>.

OverviewWe Are Skyral: We believe every decision maker can be empowered by technology. Skyral combines AI, leading edge simulation technology and world class expertise to transform the decision making experience. Our products an...Read More>>.

Hours35 hour per weekClosing DateFri, 9 Oct 2026Principal Engineer – Dynamics, Power Platform, Workflow & Colleague Experience Engineering at ScaleThe Cus...Read More>>.

Swansea, United Kingdom | Posted on 30/09/2026 Scrumconnect Consulting is a multi-award-winning digital consultancy, recognised for delivering impactful and innovative technology solutions across UK government departments. Our work has posi...Read More>>.

Our Purpose Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, we're helping build a sustainable economy where everyone can prosper. We support a wide range of digital...Read More>>.

Who are We? Grip is the AI-powered, end-to-end event platform built for engagement. The flexible system helps commercial event organizers like Ascential, Hyve, Emerald and Clarion Events boost revenue by establishing, maintaining and trac...Read More>>.

Neulinx, partnering with a growing AI-powered SaaS company, is hiring a Principal Engineer who will own architecture and drive engineering decisions across software, cloud, and DevOps. This senior IC role emphasizes hands-on leadership without peo...Read More>>.

Senior Principal EngineerLocation: Dublin, IrelandJob Type: PermanentSector: Roads, Transportation & InfrastructureThe Opportunit...Read More>>.