Overview In this role you will help build a scalable technology platform powering Autotrader and external automotive data sources. You will work with a cross-functional team to improve service availability and latency, ensuring sub-100 ms r...Read More>>.

Overview In this role you shape how AI is embedded across Arm’s engineering platforms and workflows, driving scalable, secure AI architectures. You will translate fast-moving AI capabilities into reusable patterns and target architectures...Read More>>.

Overview As Principal Engineer you will lead the Highway Developments and Implementation team to ensure private developments are designed and delivered to high highway standards. You will act as a specialist adviser to developers and coordi...Read More>>.

Overview In this role you will lead the design and implementation of a cloud-agnostic Identity and Authorization Platform for a multi-tenant SaaS. You will own the authorization architecture across web, mobile, APIs, microservices, and AI g...Read More>>.

Overview In this Principal Engineer role, you shape technical direction across the Surveillance estate while remaining hands-on. You’ll balance deep technical work with guiding senior engineers, ensuring architecture coherence, security p...Read More>>.

Overview As Principal Engineer for the AI Productivity Lab, you will lead the engineering of domain-specific agents and tooling that accelerate AI-driven employee productivity. You work within the Data & AI Team to shape and deliver practic...Read More>>.

A leading software development firm in Central London is looking for a Principal Software Engineer to own the technical roadmap and manage solutions architecture. The ideal candidate will have over 7 years of experience, particularly in full stack de...Read More>>.

A transformative Medical Device company in the UK is seeking a Principal Software Engineer. You will lead software testing and quality assurance activities, create effective testing strategies, and manage cybersecurity efforts. The ideal candidate ha...Read More>>.

Job Description Out of the successful launch of Chase in 2021, we're a new team, with a new mission. We're creating products that solve real world problems and put customers at the center – all in an environment that nurtures skills...Read More>>.

Lovable lets anyone and everyone build software with any language. From solopreneurs to Fortune 100 teams, millions of people use Lovable to transform raw ideas into real products - fast.We are at the forefront of a foundational shift in so...Read More>>.

Raytheon UK is recruiting a Principal Software Engineer to join our onsite teams in Manchester and Gloucester. You will contribute to secure, mission-critical software across defence programmes, working in a cross-functional team with DevSecOps at...Read More>>.

RTX Corporation in the United Kingdom is seeking a Principal Software Engineer to join our specialist teams based across Manchester, Gloucester, and London. You will deliver secure, mission-critical software across diverse programmes, collaboratin...Read More>>.

Gemba Advantage is hiring Senior and Principal Engineers to shape secure, scalable software for critical public sector systems across the UK. You will influence technical direction, mentor teams, and work with customers to solve complex problems,...Read More>>.

Accenture Manchester is seeking a Principal Software Engineer with strong leadership to drive backend services and cloud-native solutions across UK client projects. The role requires hands-on engineering as well as client and team leadership, with...Read More>>.

Indicium AI is seeking an exceptional Principal Software Engineer to lead delivery in the Energy & Commodities Trading sector. This hands-on role combines engineering excellence with strategic leadership, mentoring teams and shaping client relatio...Read More>>.

Accenture Manchester is seeking a Principal Software Engineer to lead engineering workstreams across client projects, shaping delivery with a strong emphasis on quality and tangible outcomes.You will grow teams, mentor engineers, and collab...Read More>>.

Select how often (in days) to receive an alert: Job Title: Principal Engineer - Flight Test Systems Location: Amesbury, England, United Kingdom Role Type: Permanent – Full Time Package: £62,775 – £69,7...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>>.

Civil Principal Engineer / Discipline Head Our client is looking for an experienced Principal Civil Engineer to take a leading technical role within their multidisciplinary design team in the water sector. This position is suite...Read More>>.

Murphy is recruiting for a Principal Engineer to work with our Applied Engineering team based out of Kentish Town, LondonOur engineering teams represent a multi-disciplined range of engineering skills, adding value across all our sectors...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>>.

Are you passionate about leading technical excellence while remaining hands‑on in building high-quality software? Do you enjoy influencing teams, shaping engineering practices, and delivering reliable, secure, and observable solutions in a co...Read More>>.

Are you passionate about leading technical excellence while remaining hands-on in building high-quality software? Do you enjoy influencing teams, shaping engineering practices, and delivering reliable, secure, and observable solutions in a coll...Read More>>.

Join a leading multi-strategy investment management firm where technology plays a critical role in supporting investment, trading, risk and operational functions. The firm operates across multiple investment strategies and relies on soph...Read More>>.

easyJet Airline Company PLC is seeking a Principal Software Engineer to lead the eCommerce Platform Delivery team. You will drive the technical vision, architecture, and delivery of high‑performance, secure systems across multiple squads....Read More>>.

Raytheon UK is hiring a Principal Software Engineer in London. You will join a cross‑functional team delivering critical software for national security, using React/NextJS, TypeScript, Python, and Java across cloud environments.Role requi...Read More>>.

Cytix is hiring a hands-on Technical Leader who will unblock the engineering team by resolving technical impasses, standardising practices, and owning cross-functional initiatives. You’ll prototype rapidly, ship MVPs, and turn ideas into polishe...Read More>>.

Principal Software Engineer C++ (Cloud Video Framework)Principal Software Engineer C++ (Cloud Video Framework)Contract: Full-Time, PermanentWorking Location: Hybrid, 2 Days a week in the office, minimum...Read More>>.

Palo Alto Networks is seeking a Senior Principal Software Engineer to shape the architecture of our cloud platform and drive end-to-end security for global services. You will lead hands-on engineering across Go, Node.js, and Python, collaborating...Read More>>.

Principal Engineering Platform AI ArchitectJob Overview:The Principal Eng Plat AI Architect sets direction for how AI is embedded across Arm's engineering platforms, toolchains and workflows. Reporting to the Director of Engineering...Read More>>.

CreateFuture is fast becoming the UK's most recognisable digital consultancy, with years of experience building digital products and services for major organisations whilst putting our people first. We have offices in the centre of Edinburgh, Leed...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>>.

SAE Industry Technologies Consortia (ITC), Performance Review Institute (PRI) and SAE International (SAE), deliver shared solutions to industry’s common challenges. Join us and create a higher standard for a better world. The Princ...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 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>>.

This vacancy is open to permanent and fixed-term BAE Systems employees only. While agency workers have access to relevant permanent opportunities, this role has been designated as an internal opportunity and therefore only permanent and fixed-term...Read More>>.

Job Title:Principal Mechanical Engineer (Chilled Water Systems)Location:Glasgow, Portsmouth, Filton, Bristol, New Malden, Frimley, hybrid - 2 on site – this role will require international travel depend on...Read More>>.

Your Impact Are you a software engineer with a working knowledge of Artificial Intelligence (AI) and Machine Learning (ML)? Are you interested in developing software for some of the most cutting-edge defence and aerospace projects in t...Read More>>.

easyJet is seeking a Principal Software Engineer to lead the eCommerce Platform Delivery team. You will guide multiple squads, drive architectural choices, and ensure secure, scalable, high-performance systems.A strong focus on data integri...Read More>>.

The Citation Group in the United Kingdom is seeking a hands-on software engineer to contribute to a major platform transformation. You will own features end-to-end, shaping the way we build, test, and deliver software with an AI-native approach....Read More>>.