Our client is a major defence and aerospace company.Date Posted:2026-08-06Country:United KingdomLocation:Gloucester, South GloucestershirePosition Role Type:Onsite...Read More>>.

PRINCIPAL SOFTWARE ENGINEER – V06450Role Description Provide technical expertise across the software team for the requirements, design, implementation, testing and verification of the software subsystems on Na...Read More>>.

Principal Software Engineer (Contract) - Naval RadarBAE Systems (Defence Solutions) | Cowes, Isle of Wight | 6 months | Inside IR35BAE Systems (Defence Solutions) i...Read More>>.

Principal Engineer - Software Engineering (Specialist Software)Frimley based role (Hybrid working)£67.47 per hour Umbrella Inside IR3512 Month Contract initially. This is a great opportunity to work...Read More>>.

Overview As Principal Software Engineer at M&S, you will provide senior technical leadership across the International Fashion, Home & Beauty domain. You’ll shape mission-critical platforms to enable international growth and digital-first...Read More>>.

Overview As a Principal Software Engineer in M&S’s Software Engineering team, you drive technical excellence across the full lifecycle to modernise mission-critical systems powering warehouse operations. You will shape the technical direc...Read More>>.

Overview As Principal Software Engineer in the eCommerce Platform Delivery team, you lead and shape technical strategy across multiple squads to deliver robust, secure, and scalable systems. You guide architecture and engineering standards,...Read More>>.

Overview In this Engineer IV role, you will design and deliver platform capabilities powering Anaplan’s enterprise-scale APIs, edge routing, and developer acceleration. You will build high-throughput backend engines, drive multi-tenant is...Read More>>.

Overview As a Principal Software Engineer in Corpay’s Alpha division, you’ll lead technically across the Client Lifecycle domain to design and operate secure, scalable systems for KYC, onboarding, accounts and data. You will work with c...Read More>>.

Overview As Principal Software Developer on the Elasticsearch Security team, you will own architecture and delivery of core security features at scale. You’ll drive design across authentication, authorization, and tenant isolation, partne...Read More>>.

Overview In this role you will lead the design and development of an internal developer platform used by all engineering teams. You will own tooling, infrastructure, and workflows, and drive platform-wide architectural decisions. You will i...Read More>>.

Overview As Technical Lead you will act as the engineering interface for a cross‑functional squad, balancing hands‑on development with leadership through influence. You shape technical direction, govern delivery plans, and drive quality...Read More>>.

Let's begin! Principal Software Engineer-AI (14865) 12+ years of software engineering experience, including 5+ years leading engineering teams and delivering complex, large-scale, multi-team initiatives with measurable business i...Read More>>.

Our client, a leading UK insurance and technology organisation, is seeking a Principal Software Engineer to provide technical leadership across complex enterprise platforms and customer-facing solutions. This permanent role offers a hybrid working...Read More>>.

Principal Software Engineer Date: 2026-09-26T00:00:00 Location: Kingswood, Surrey, GB, KT20 6 Work Type: Any Closing Date: 2026-12-28T19:01:34.117 Job Description Raytheon U...Read More>>.

SummaryImagine what you could do here. At Apple, new ideas have a way of becoming extraordinary products, services, and customer experiences very quickly. You bring passion and dedication to your job and there's no telling what you c...Read More>>.

At Roche you can show up as yourself, embraced for the unique qualities you bring. Our culture encourages personal expression, open dialogue, and genuine connections, where you are valued, accepted and respected for who you are, allowing you to th...Read More>>.

Roche Products Ltd. is seeking a Software Engineer (Principal / Senior Principal) to help design and build modernized data and computational ecosystems for drug discovery.You will lead interactive tooling, scalable data platforms and AI-ena...Read More>>.

Date Posted: 2026-08-13Country: United KingdomLocation: Gloucester, South GloucestershirePosition Role Type: OnsitePrincipal Software EngineerLocation: GloucesterPer...Read More>>.

Corpay is seeking a Principal Software Engineer in London to lead cross-functional engineering for the Client Lifecycle domain. You will drive architecture, guide teams, and contribute hands-on code while shaping secure, scalable, cloud-native sol...Read More>>.

Dex presents a principal-level opportunity with a partner company building a definitive API for global tax automation. You will co-own the roadmap with product, drive architecture, and operate what you build in production.This is not a tick...Read More>>.

Meet the Team Cisco ThousandEyes is a Digital Experience Assurance platform that empowers organizations to deliver flawless digital experiences across every network - even the ones they don’t own. Powered by AI and an unmatched s...Read More>>.

The Computational Sciences Center of Excellence (CS CoE) is a strategic, unified group whose mission is to harness the power of data and Artificial Intelligence (AI) to assist scientists in delivering innovative, life-changing medicines to patient...Read More>>.

Overview As an engineer in the Internal Tooling team, you'll build the software that runs on our physical devices. That includes test stations, manufacturing rigs, lab equipment and the computers that control them. Your applications contr...Read More>>.

Elekta in Crawley is seeking a Principal Software Engineer to lead shared components and services across the product portfolio. You'll work with architects and product teams to define direction and ensure secure, scalable software for customers wo...Read More>>.

How you'll make a differenceAs a Principal Engineer, you will make a significant contribution to the successful delivery of highway development projects across South Gloucestershire. Acting as a specialist adviser o...Read More>>.

Job Description Salary Range: £54,000 – £70,000 Principal Software Engineer – Test Environments (GCAP) Your Impact Can you develop Test Environments for a complex aerospace programme, from strategy throug...Read More>>.

慨正橡扯 in the United Kingdom is seeking a Principal Software Engineer to join their team in Manchester or Gloucester. This full-time, permanent position offers a hybrid working pattern, focusing on both technical tasks and team leadership....Read More>>.

Raytheon UK have a full time, permanent opportunity for a Principal Software Engineer to join our team on our Manchester or Gloucester sites within a hybrid working pattern. As Principal Software Engineer, you have the opportunity...Read More>>.

Principal Software Development Engineer Design and optimize marine navigation software for embedded hardware systems Location: Fareham, Hampshire, United Kingdom. Job Tags: Software. Job Summary The Prin...Read More>>.

TPXimpact is seeking a Principal Software Engineer to shape the technical direction of high-profile projects and lead delivery of modern, scalable software. You will mentor engineers across teams, line-manage a group, and collaborate with senior s...Read More>>.

Principal Software Engineer ABOUT THE ROLE We’re looking for a Principal Software Engineer to shape the technical direction of high-profile projects and lead the delivery of modern, scalable software. We u...Read More>>.

Vix Technology is seeking a talented Principal Software Engineer to join our global team. You will own the design and delivery of mission-critical software for public transit, collaborating with platform specialists to build robust, scalable appli...Read More>>.

SummaryImagine what you could do here. At Apple, new ideas have a way of becoming extraordinary products, services, and customer experiences very quickly. You bring passion and dedication to your job and there's no telling what you c...Read More>>.

Make The Connection.Vix Technology is a global leader in providing innovative solutions for public transit, believing that accessibility should be a standard. With over 35 years of experience and systems deployed in more than 200 citie...Read More>>.

Principal Software EngineerFinancial services | London | Hybrid, 6 days onsite per monthPackage: £75-£95k + 10% pension + 10% cash allowance + bonus + benefits pack.We’re recruiting a Principal Software Engineer for a fi...Read More>>.

Elekta is a global leader in precision radiation medicine, building software to enable advanced radiotherapy and radiosurgery. As a Principal Software Engineer, you will provide technical leadership for shared software components used across Elekt...Read More>>.

At Roche you can show up as yourself, embraced for the unique qualities you bring. Our culture encourages personal expression, open dialogue, and genuine connections, where you are valued, accepted and respected for who you are, allowing you to th...Read More>>.

Raytheon UK is seeking a Principal Software Engineer in London to join our cyber software team. This permanent onsite role involves delivering and deploying critical software across multiple business areas.You will design and build software...Read More>>.

Job Description: The Opportunity Are you a Software Engineer with C++ experience looking for your next challenge? Here at Leonardo, we are seeking an experienced Principal Software Engineer to take on pivotal technical w...Read More>>.

Job DescriptionYour impactWould you like a once-in-a-generation opportunity to play a key role in a defence programme of national and international importance?We are on the hunt for talented software engineers to support o...Read More>>.

As a Principal Software Engineer, Manipulation on Berkshire Grey’s Scoop program, you will serve as a senior technical leader responsible for advancing the manipulation capabilities of our robotic solutions. You will define architecture, s...Read More>>.

Your rolePrincipal Software EngineerWhat you'll be doingProvide hands‑on technical leadership across the Client Lifecycle vertical, setting direction for the design, evolution and operation of systems supporting KYC,...Read More>>.

Our client is a fast-growing UK engineering and software technology company located in Bristol. They are looking to hire a Principal Software Engineer to lead the design, architecture and development of their internal developer platform that all t...Read More>>.

The Applied Innovation (of AI) Engineering team is an elite machine learning group strategically located within the Chief Data Analytics Office (CDAO) Technology group of JP Morgan Chase. AI Engineering tackle business critical priorities using...Read More>>.

Corpay is hiring a Principal Software Engineer in London to provide hands-on technical leadership across the Client Lifecycle domain, shaping the design, evolution and operation of KYC, onboarding, accounts, and data systems.You will define...Read More>>.

The digital backbone of the renewable energy world Our team combines deep domain knowledge of the renewable energy industry, with cutting-edge software engineering and operational delivery specialists with office spaces in Cambridge an...Read More>>.

Raytheon UK in Manchester is seeking a Principal Software Engineer to join our Cyber division. This permanent role is on-site with hybrid options (min 3 days on-site per week) and requires eligibility for SC and eDV clearance.You will desig...Read More>>.

You will own the frontend architecture of the W&B app, the product ML researchers and engineers work in every day, and be accountable for app performance, stability and reliabilityA single page in W&B assembles data from many parts o...Read More>>.

Make The Connection. Vix Technology is a global leader in providing innovative solutions for public transit, believing that accessibility should be a standard. With over 35 years of experience and systems deployed in more than 200...Read More>>.