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This exciting opportunity as a Principal Software Engineer offers you the chance to be part of a forward-thinking company that is revolutionising defence technology. Mentor and coach junior engineers, sharing knowledge and expertise to foster growth and development.

Interested? If you are ready to take on this challenging and rewarding role as a Principal Software Engineer, apply now and become part of a team that is shaping the future of defence technology. Experience with software testing, design for test, and best practice software development processes. Con

The Software Engineering function in Ultra supports the software development lifecycle consisting of requirements analysis, design, implementation, test and verification in order to deliver software components into projects and products and supports the deployment and maintenance of software compone

We offer a range of hybrid and flexible working arrangements - please speak to your recruiter about the options for this particular role Salary: Competitive What you'll be doing: Work with our customer to agree an acceptable approach to risk Plan and carry out software assurance activities includ

Harrington Starr has partnered with a leading Global Payments Technology company who are seeking to hire a Principal Software Engineer to join their senior engineering leadership team. Provide leadership and mentorship across multiple engineering teams.

Our client, a leader in the defence and security sector, is seeking a Principal Software Engineer to join their team in Berkshire. Embedded product development (including bare-metal and RTOSes such as ThreadX, QNX or Linux, Embedded Linux application, kernel and/or driver development, C and C++, sof

Job Title: Principal Embedded Software EngineerLocation: Bristol City Centre - 3 Days Per Week On-Site Salary - Up to £72,000 + Bonus & Benefits (Depending on Experience) Summary: This is a fantastic opportunity for an experienced engineer with a passion for leadership and a background in safety-cr

Harrington Starr has partnered with a leading Global Payments Technology company who are seeking to hire a Principal Software Engineer to join their senior engineering leadership team. Provide leadership and mentorship across multiple engineering teams.

Principal Software Engineer Edinburgh An innovative and well-established med tech company are seeking a proven technical leader to join its R&D team basedin central Edinburgh as a Principal Software Engineer.

Our client, a leader in the defence and security sector, is seeking a Principal Software Engineer to join their team in Berkshire. Embedded product development (including bare-metal and RTOSes such as ThreadX, QNX or Linux, Embedded Linux application, kernel and/or driver development, C and C++, sof

Senior Principal Software Engineer (REMOTE). We're seeking an exceptional Senior Principal Engineer to serve as the technical leader to develop the future of autonomous infrastructure platforms for the enterprise. Champion engineering excellence through code reviews, design reviews, and mentorship o

As a Principal Software Engineer, you will contribute to the development of pioneering cryptographic and key management solutions, ensuring the secure exchange of vital information for its customers. This exciting opportunity as a Principal Software Engineer offers you the chance to be part of a for

Are you a passionate and experienced engineer with a track record of delivering impactful solutions and leading high-performing teams? Do you thrive on solving complex technical challenges while helping others grow and succeed? At Credera, we’re building a world-class engineering capability, and w

Proven experience as a Lead Engineer, Principal Engineer, or similar senior technical role. We’re looking for an experienced Lead / Principal Engineer to play a key role in shaping the technical direction of our products and platforms. As a senior member of the engineering team, you’ll take the

Principal Software Assurance Engineer. Engaging with System Designers, Software Developers and other engineering disciplines in the design process to ensure that software meets requirements. Review software plans, documentation and software aspects of system level plans and documents to provide time

Stellar Entertainment Software. Technical Director and Engineering team to develop and optimise the rendering and graphics technology on our AAA projects. Your main focus will be collaborating with engineers, artists, and technical artists to design, implement, and optimize rendering features to cre

We’re looking for a Principal Software Engineer to help shape the future of our digital experiences, both in-store and online. Mentor and develop senior engineers to deliver scalable, secure, and high‑quality software. This role involves integrating tools like CommerceTools, Algolia, and Content

Rocket Software Sales Engineers are experienced technical professionals with an extensive enterprise software sales background who can successfully be the technical sales lead on software opportunities to progress and close business, and must function well as a member of a dynamic team, while having

You’ll be a successful Principal Software Engineer here at OVO if you…. In this role, you’ll use your deep expertise in software engineering to guide architectural decisions, influence technology choices, and keep us aligned with emerging industry trends. This role requires deep expertise in s

Lead the re-architecture of the team’s code, collaborating with principal engineers in other teams to design and deliver a coherent system. Principal Engineer – Join a profitable FinTech Scale-Up. As they continue to grow, they are looking for a Principal Engineer to lead the next phase of innov

Principal Software Engineer, Architecture at Affirm. Foster a culture of technical excellence, inclusivity, and rigor across Affirm’s European engineering teams. Deep experience guiding engineering strategy and delivery in complex, regulated environments.

As they enter a critical phase of growth, they’re looking to hire a Senior or Principal Full-Stack Software Engineer to help lay the technical foundations of their platform and influence both the engineering direction and long-term product strategy. Senior/Principal Full Stack Software Engineer. B

If you are a Principal Software Engineer looking to contribute to pioneering software developments in the Defence & Security sector, we encourage you to apply now for this contract opportunity in Southampton. Our client, a prominent player in the Defence & Security sector, is seeking a Principal Sof

Principal Software Engineer, Snyk Code (SAST). Join to apply for the Principal Software Engineer, Snyk Code (SAST) role at Snyk. As a Principal Software Engineer on the Snyk Code team, you will be responsible for driving our technical future and tackling our most difficult and strategic challenges i

Our client, a leader in the defence and security sector, is seeking a Principal Software Engineer to join their team in Berkshire. Advanced knowledge of software engineering practices and methodologies. Software testing and design for test.

A Fintech going through a huge transformation is looking for Principal Engineers to join the team and play a key role in shaping their future technology and engineering practices. As a Principal Engineer, you will apply your technical expertise and hands-on skills to tackle sophisticated engineering

Principal Software Engineer- AI (Remote). Our pay ranges for our Principal Engineering position in London is specified to the recruiting team. From early‑stage startups to global enterprises, we work across industries to optimise our clients’ digital products through product strategy innovation,

We are seeking a highly skilled and experienced Principal Software Engineer to join our team full time. Support the creation of a Network Operating Center (NOC) on the software & system side and other strategic initiatives such as design and development of digital twin infrastructure. At minimum 10

Principal Software Engineer – Drive Social Impact Through Tech. Are you a tech leader passionate about using software to create meaningful change? We’re seeking a. Passion for ethical software development and social impact.

Principal Sales Engineer page is loaded## Principal Sales Engineerlocations: United Kingdom (Remote)time type: Part timeposted on: Posted Todayjob requisition id: R2025-6013It's fun to work in a company where people truly BELIEVE in what they're doing!Job Description Summary:The Prin

Extensive background of software engineering experience in enterprise-scale, data-centric, or platform environments. This team is accountable for shaping enterprise data architecture, enabling high-performance AI-driven workloads, and acting as a technical bridge between engineering and architecture

The Principal Software Engineer is responsible for the architecture, design and development of major product features. The Principal Software Engineer is responsible for the architecture, design and development of major product features. Sign in to set job alerts for “Principal Software Engineer��

This is your chance to join a team that empowers engineers, embraces modern practices, and is committed to building products that solve real-world challenges. Looking for an experienced Lead Front-End Engineer who can combine hands-on development with technical leadership to shape the future of our

System Specification and Verification Principal Engineer. Work closely with engineering and product teams to codify design decisions into executable criteria. Mentor and guide engineers in formal methods, language design, and scalable verification.

As an engineer with breadth and depth of experience you’ll be in your element designing and delivering scalable software in the cloud and on-premise, articulating software designs and tradeoffs, communicating with engineers, technology and product leaders, senior leadership and customers. You’ll

Principal Frontend Engineer | TypeScript and React | Remote UK or Ireland. You will join an empowered engineering environment that values outcomes over outputs, curiosity over assumption and practical delivery without unnecessary process. Lead frontend engineering initiatives across modern web appli

Mentor Staff and Senior engineers, grow technical leadership capability across the org, and champion engineering excellence and pragmatic simplicity. We’re hiring a Principal Engineer to drive Paddle’s company-wide technical vision for our platform and backend architecture. Champion operational

Senior/Principal Systems Engineer (4 positions). Principal Systems Engineer (6 positions). Software Engineering Manager - Systems Generalist.

Our Principal Software Engineers are members of the Software Engineering Practice leadership team with the responsibility to develop the capability of the practice to meet business needs and to accelerate the growth of the practice, their account and the wider business. In addition, our Principal So

As a Principal Software Engineer / Architect you will collaborate with Product Management and Agile software delivery tribes to define, document and communicate the technical architecture for new products and features with scalability and reliability at the core. Principal Software Engineer / Archit

Rocket Software Sales Engineers are experienced technical professionals with an extensive enterprise software sales background who can successfully be the technical sales lead on software opportunities to progress and close business, and must function well as a member of a dynamic team, while having

We are seeking a highly skilled and driven Principal Software Engineer with a strong background in full-stack development, particularly in backend technologies and Agentic AI, to join our AI/ML team. Communication: Excellent communication skills, with the ability to collaborate effectively in dynami

System Specification and Verification Principal Engineer. Capable of onboarding new engineers, conducting code reviews, and facilitating knowledge transfer to strengthen the team’s expertise. This is a rare opportunity to influence the future of correctness-driven engineering, applying formal meth

We make databases and applications run better through a unique combination of expertise and open source software built with the community for you. This is a senior individual contributor role for an engineer who thrives on solving hard problems, is motivated by technical ownership, and is passionate

Extensive background of software engineering experience, ideally in platform, infrastructure, or data-centric product development. As part of the Platform & AI Enablement team under GPTO Engineering, you’ll report to the Sr. This team is accountable for shaping enterprise data architecture, enabli

Principal Tech Recruiter (Software Engineering) at Wave Talent. Software Engineer/Quant Developer (FULLY REMOTE) - Up to £200k + Bonus - London. Get notified about new Software Engineer jobs in.

As a Principal Embedded Software Engineer - UEFI, you will be responsible for the delivery of the BIOS, BSPs, and additional software for the company's new and existing products. Principal Embedded Software Engineer - UEFI (Remote, US). Experience developing low-level, embedded software for Linux or

Build trusted relationships across engineering and leadership teams, translating vision into actionable direction.