26 to 50 of 72 Principal Software Engineer Jobs in the UK

Description: Your ImpactAs 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 enterprise DevSecOps capability, enabling teams to deliver features … updates rapidly, reliably and securely. Working within our software engineering community, you will champion modern engineering practices, drive automation, and embed security throughout the software development lifecycle. Through your technical leadership and mentoring, you will help build a collaborative DevSecOps culture focused on innovation, continuous improvement and operational ...

Description: Your ImpactAs 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 enterprise DevSecOps capability, enabling teams to deliver features … updates rapidly, reliably and securely. Working within our software engineering community, you will champion modern engineering practices, drive automation, and embed security throughout the software development lifecycle. Through your technical leadership and mentoring, you will help build a collaborative DevSecOps culture focused on innovation, continuous improvement and operational ...

Description: Your ImpactAs 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 enterprise DevSecOps capability, enabling teams to deliver features … updates rapidly, reliably and securely. Working within our software engineering community, you will champion modern engineering practices, drive automation, and embed security throughout the software development lifecycle. Through your technical leadership and mentoring, you will help build a collaborative DevSecOps culture focused on innovation, continuous improvement and operational ...

possible in cloud and data center computing. Our Neoverse platforms are helping power a new era of infrastructure – combining advanced silicon with the system software required to turn ambitious technology into production-ready solutions. Are you excited by bringing structure to complex software delivery, collaborating with engineering groups … helping turn new silicon into production-ready products? We are looking for a Staff/Principal Software Engineer in the Infrastructure Solutions Software team in our CE-SW group. This role will lead all aspects of post-silicon firmware releases and defect management for our infrastructure ...

Title: Principal Software Engineer, AI InnovationCareer Architecture Role: Software EngineerCareer Architecture Tier: E35 (Principal, Expert Track)Job Summary: This is a founding engineer role in a new, innovation-focused team being built from scratch within Pearson's Enterprise Innovation function. The mission … stage environments. Learning to Learn, Adaptability, Ethical Responsibility (Effective–Advanced): Embrace new technologies and maintain high ethical standards. Qualifications (Education & Experience):Extensive experience in software engineering and AI innovation, with a broad full-stack skillset. Proven track record of working on early-stage or 01 products, shaping direction rather ...

experienced automation software engineer eager to lead innovative control solutions in a flexible, hybrid working environment? We are seeking two talented professionals to join our team as Principal Automation Software Engineers. This is your chance to play a pivotal role in designing, testing, and commissioning cutting … automation systems for diverse industrial projects while enjoying the flexibility of working 2-3 days per week in the office. Role Overview: As a Principal Automation Software Engineer, you will support a leading engineering solutions provider with comprehensive design engineering tasks from quotation to commissioning. You will ...

Principal Process Automation Software Engineer Peterborough | Full time | £58,500 + overtime Hybrid Working A leading process automation business is entering an exciting period of growth and is strengthening its senior engineering team. This senior position sits at the heart of that growth. If you’ve spent … about it. My client delivers the full lifecycle, from quick upgrades to complete turnkey solutions: assessment, design, build, installation, commissioning, training and support. As Principal Engineer, you will be the technical authority across all of it. Why this role, and why now Join during the growth. You will ...

Principal Embedded Software Engineer | £70-85k + Bonus | Cambridge This is an opportunity to join a market-leading communications technology company developing mission-critical comms systems. You will take technical ownership of embedded application software development across Linux and Android platforms, helping deliver the next … generation of technology that underpins secure communications. Responsibilities: Designing, developing and testing embedded application software across Embedded Linux and Android platforms. Leading software component activities including architecture, task planning, technical reviews and integration testing. Developing new application features whilst maintaining and enhancing existing software components. Translating complex ...

ABOUT THE ROLE Were looking for a Principal Software Engineer to shape the technical direction of high-profile projects and lead the delivery of modern, scalable software. We use technology to create impactful, human-centred solutions that make a difference to users and organisations. We believe great … working closely with senior stakeholders, mentoring engineers across multiple teams, and line managing a small group of engineers while helping shape our approach to software delivery, architecture, and engineering culture. DIMENSIONS Budget : Awareness and influence on large-scale project budgets. Headcount : Lead multiple teams or larger cross-functional teams ...

Principal Java Engineer (Hands-On) £70,000 - £85,000 + Bonus + Excellent Benefits Hybrid - 1 Day Per Week Onsite in South Manchester Java | Spring Boot | AWS | Technical Leadership Please note: Visa sponsorship is not available for this position. We're working with an established technology business … South Manchester who are looking to appoint a Principal Java Engineer to play a key role in the continued development of their software platforms and engineering teams. This is an opportunity for an experienced Java Engineer who enjoys technical leadership but doesn't want to move ...

skilled, innovative and passionate group of people – Team AALTO. Together, we can Unlock Stratospace. About The RoleWe're looking for an experienced, hands-on Principal Software Engineer to take a senior technical role within a multidisciplinary team developing safety-critical aircraft software. This is an opportunity … work close to the product, influence engineering decisions and help shape robust airborne software that will operate in demanding real-world environments. You'll design, develop, verify and maintain embedded software primarily in C, with C++ and Python also part of the engineering toolkit. Working across the full ...

Join AALTO in Farnborough as Principal Software Engineer, developing safety-critical embedded software that powers Zephyr and unlocks the potential of Stratospace. AALTO, a global leader in Stratospace. Based in Farnborough, AALTO is an Airbus subsidiary that manufactures, operates, and delivers services with its solar-powered … part of a highly-skilled, innovative and passionate group of people Team AALTO. Together, we can Unlock Stratospace. Design, develop, test and maintain embedded software for airborne systems, primarily using C, with C++ and Python where appropriate. Contribute across requirements, architecture, detailed design, implementation, integration, verification and certification support. ...

DescriptionWe are seeking a highly experienced Principal Software Engineer to provide technical leadership across our technology function while actively designing, developing, and shipping software. This is a senior hands-on software engineering role. The successful candidate will be expected to actively design, develop, test, review … deploy production software as a core part of their responsibilities. You will be responsible for defining architecture, establishing engineering standards, and developing solutions are scalable, secure, maintainable, and aligned to business objectives. Working closely with architects, engineering teams, business stakeholders, and senior leadership, you will help shape our technology ...

DescriptionAs a Principal Software Engineer within the eCommerce Platform Delivery team, you will provide leadership and technical stewardship across multiple squads within a defined Mission. You will be responsible for the overall design and accountable for upholding engineering standards, ensuring the delivery of robust, secure, scalable … systems. Your role will involve guiding teams towards technical excellence, fostering a culture of continuous improvement, and driving high performance across all aspects of software development. Working closely with Product Managers, Agile Delivery Managers, Enterprise Architects, and the Chapter Lead for Software Engineering, you will ensure engineering standards ...

121888Category: Software EngineeringLocation: United KingdomWorkplace: HybridSchedule: Full timePosted: 2026-10-06As part of the M&S Software Engineering team, you'll be joining a well-loved historic brand, working on solutions that serve millions of loyal customers and thousands of colleagues. With ethical values that run right … through the company's core and technology leaders who truly understand software engineering, it's an exciting time as we continue our transformation into a digital-first, engineering-led organisation, with the quality of our engineering teams being a key differentiator. We are seeking a passionate Principal Software ...

Join AALTO in Farnborough as Principal Software Engineer, developing safety-critical embedded software that powers Zephyr and unlocks the potential of Stratospace. AALTO, a global leader in Stratospace. Based in Farnborough, AALTO is an Airbus subsidiary that manufactures, operates, and delivers services with its solar-powered ...

Description Join AALTO in Farnborough as Principal Software Engineer, developing safety-critical embedded software that powers Zephyr and unlocks the potential of Stratospace. AALTO, a global leader in Stratospace. Based in Farnborough, AALTO is an Airbus subsidiary that manufactures, operates, and delivers services with its solar ...

4840249Job ID: 5421799Posted: 2026-10-23Closing date: 2027-01-21Location: LeedsSalary: Per AnnumJob type: PermanentWorking pattern: Full timeIndustry: Technology & Internet Services/Software DevelopmentCompany: HaysConsultant: Ian SimmonsHays office: Leeds — Part 6th Floor, Broad Gate, The HeadrowPhone: 0333 010 3828Email: ian.simmons@hays.comPRINCIPAL SOFTWARE ENGINEERFULLY REMOTEPERMANENT ROLE SALARY … CIRCA 100K + BENEFITSYour new roleWe're looking for a Principal Software Engineer to join a high-growth technology business building an AI-powered digital platform operating at significant scale. This is a senior hands-on role combining software engineering, architecture and DevOps. ...

Software Engineer (Principal & Senior) - Active SC, DV Clearable Location : Remote whilst SC, Cheltenham 4 days on-site once DV Salary : Lead, £90,000 - £100,000/Principal, £110,000 - £130,000 Clearance: Must have a minimum of active SC with ability to go through DV click ...

that makes you unique is welcome; join us and let's build what's next - together! We are seeking a versatile and highly skilled Principal Software Engineer who can work seamlessly across our frontend and backend services—from designing highly performant, intuitive modern user interfaces to building … architecture, design, and deployment of scalable Generative AI solutions, ensuring seamless integration into our core planning workflows. This is a unique role requiring deep software engineering expertise across both frontend and backend development, combined with hands-on experience building production-ready GenAI features. You will bridge the gap between ...

About The RoleA Principal Engineer is the most senior technical role in Manifesto's engineering team. You provide technical leadership where it matters most: shaping a new client opportunity, designing complex architecture, or resolving a critical live issue. You work across our client estate rather than being embedded … appropriate to the client's budget, team and long-term maintenance capability, not to the most interesting technical solution available. You uphold a clear software design philosophy and ensure teams deliver maintainable solutions. You have a clear understanding of simplicity. You define solutions that are simple by design ...

client is a major defence and aerospace company. Date Posted: 2026-10-15 Country: United Kingdom Location: Manchester, Lancashire Position Role Type: Unspecified Principal Software Engineer Location: Manchester Permanent Onsite Due to the interesting work we do and the sector this team is working in, we require … teams work synchronously with our customers to solve some of the toughest digital challenges faced in the world today. Role & Responsibilities Design and build software using industry best practice Collaborate with stakeholders and other engineers Contribute to the completion of milestones associated with your project Contribute to continuous improvement ...

skills needed for this roleStrategic Enterprise Technology LeadershipRecognised Java Engineering ExpertiseAdvanced Architecture & Systems Integration CapabilityWhat this role is all aboutWe're looking for a Principal Software Engineer to join Vitality's Engineering function, providing technical leadership across complex enterprise platforms and customer-facing solutions. This … highly influential role responsible for shaping engineering standards, driving architectural decisions, leading large-scale technical initiatives and ensuring the successful delivery of integrated software solutions that support critical business outcomes. The role operates across multiple teams and works closely with senior stakeholders, architects and third-party partners to deliver ...

Strategic Enterprise Technology Leadership Recognised Java Engineering Expertise Advanced Architecture & Systems Integration Capability What this role is all about We're looking for a Principal Software Engineer to join our client's Engineering function, providing technical leadership across complex enterprise platforms and customer-facing solutions. This … highly influential role responsible for shaping engineering standards, driving architectural decisions, leading large-scale technical initiatives and ensuring the successful delivery of integrated software solutions that support critical business outcomes. The role operates across multiple teams and works closely with senior stakeholders, architects and third-party partners to deliver ...

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 use technology to create impactful, human-centred solutions that make a difference to users and organisations. We believe ...