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>>.

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 Description As a Principal Software Engineer at JPMorgan Chase within CDAO Technology Group in the Applied Innovation (of AI) Engineering team, you will design, develop, deploy, and maintain advanced AI products. You’ll collabora...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>>.

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 technica...Read More>>.

Date Posted: 2026-03-17 Country: United Kingdom Location: Manchester, Lancashire Position Role Type: OnsiteRaytheon UK have a full time, permanent opportunity for a Principal Software Engineer to join our team on our Manchester or Glouce...Read More>>.

Why Technology at loveholidays? At loveholidays - we trailblaze together. We’re on a mission to open the world to everyone, giving our customers’ unlimited choice, unmatched ease and unmissable value for their next getaway....Read More>>.

Contract Software Engineer (C# .NET) Location: Luton (Hybrid: 4 days on-site, 1 day remote) Contract: 12 months IR35: Inside IR35 Security Clearence: Full UK SC required Rate:...Read More>>.

We are excited you have visited our Careers page. We are seeking talented individuals that are excellent in their field of expertise and are posed with all potential and skills necessary to help us meet future business challenges. Positi...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 set o...Read More>>.

We are looking for principal software engineers with diverse experience. We are a small but rapidly growing consultancy, owned highly experienced and recognised practitioners in UK defence consultancy. We are looking for candidates with...Read More>>.

We've partnered with a global software leader, providing cloud-based platforms that help the world’s top BioPharma companies manage complex data. We're looking for a hands-on Principal Software Engineer to lead the design and delivery of prod...Read More>>.

About The RoleHippo is a rapidly growing digital consultancy passionate about building and delivering transformative digital solutions for a diverse range of Public and Private sector clients. We are recruiting for a Principal Softw...Read More>>.

At MHR, our employees are central to our success and play a key role in helping customers achieve sustainable high performance. With a team of over 900 professionals, we work to make things flow smoothly, whether it's for large organisations or...Read More>>.

Principal EngineerLocation: Waterloo, London, England, UK | Hybrid (1 day per week in office)Who We AreAt 8th Light, we bring life to the best ideas.Founded in 2006 and headquart...Read More>>.

This is a hybrid position with 2 days a week in our office in ManchesterThe Principal Engineer is the most senior individual contributor in engineering, setting technical direction, leading architectural decisions and aligning technology...Read More>>.

Answer Digital is looking to recruit a Principal Software Engineer to play a pivotal role in shaping how we deliver our large-scale, operationally critical projects. This is a senior leadership opportunity for someone who wants to help s...Read More>>.

Principal Software Engineer Department: Technology Employment Type: Permanent - Full Time Location: London Reporting To: Head of Engineering Description Defaqto is one of...Read More>>.

Salary: Up to £140,000 + Bonus & Benefits Harrington Starr is partnering with a leading financial technology firm to hire a Principal C# Software Engineer based in London. This is a senior technical leadership role...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 20...Read More>>.

Department: Department: Technology Location: London Description Defaqto is one of the most trusted names in UK financial services research and ratings, and our technology turns deep market data into...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>>.

Job Description: Your impact Would 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 su...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>>.

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>>.

RoboShadow, a fast-growing UK-based cyber security startup, is seeking a hands-on Principal Software Engineer to lead delivery and technical direction.This is a true player-coach role, not pure management; you will code, review, architect,...Read More>>.

Palo Alto Networks is seeking a senior software engineer to join the Cortex Platform team. You will work with DevOps, application teams, QA and leadership to design and drive backend and platform changes with real impact across the Cortex ecosyste...Read More>>.

Principal Software Engineer C++ (Cloud Video Framework) Contract: Full-Time, Permanent Working Location: Hybrid, 2 Days a week in the office, minimum Office Locations: UK/Hungary Join Our Team...Read More>>.

Are you a current Elekta employee? Please click here to apply through our internal career site Find Jobs - Elekta. We don’t just build technology. We build hope for everyone dealing with Cancer. Elekta is shaping the standard of care, togethe...Read More>>.

Job Description: Would 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 our Integrated...Read More>>.

Accenture is seeking a Principal Software Engineer in Manchester to lead client engagements, drive technical strategy, and build backend services across cloud-native architectures.You will mentor teams, collaborate with stakeholders, and co...Read More>>.

Raytheon UK is seeking a Principal Software Engineer to join our established software development function in London. You will work in a cross-functional team, delivering and deploying critical software across multiple business areas.The ro...Read More>>.

TipTopJob seeks a Principal Software Engineer to lead embedded and application software efforts in a cyber and defence context. You will shape technical direction, mentor a talented team, and deliver high-quality software for mission-critical prog...Read More>>.

JPMorganChase is seeking a Principal Software Engineer within Infrastructure Platforms Engineering & AI Practices to lead across multiple teams. You will design and build platforms and shared services that meet access, compliance, and governance r...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 C++ (Cloud Video Framework) Contract: Full-Time, Permanent Working Location: Hybrid, 2 Days a week in the office, minimum Office Locations: UK/Hungary Join Our Team...Read More>>.

If you are looking for a game-changing career, working for one of the world's leading financial institutions, you’ve come to the right place. As a Principal Software Engineer at JPMorgan Chase, you will be leading change as part of an agi...Read More>>.

Job title: Principal EngineerLocation: London / Bristol / Edinburgh (Hybrid Office - 3+ days per week)Team: Enterprise ArchitectureLevel: TL2 / TL3This role is based in London...Read More>>.

Job title: Principal EngineerLocation: London / Bristol / Edinburgh (Hybrid Office - 3+ days per week)Team: Enterprise ArchitectureLevel: TL2 / TL3 This role is based in Lond...Read More>>.

Company DescriptionWork with Us. Change the World.At AECOM, we're delivering a better world. Whether improving your commute, keeping the lights on, providing access to clean water, or transforming skylines, o...Read More>>.