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Principal Software Engineer / Tech Lead / Founding Engineer opportunity - Tech Start-Up- Remote UK wide - Up to 120k. Morson Edge are delighted to have teamed up with a Tech4Good start up on their search for their first Software Engineering hire. The client are completely open on what the title of t

Mentor engineers, influence cross-org roadmaps, and collaborate with Product, SRE, and Network Engineering from concept to GA. Join OCI’s Edge Security team as a Principal Engineer to architect and deliver cloud-scale DDoS protection. Background in resilience engineering, chaos testing, disaster r

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.

We are on the lookout for a Principal Software Engineer I to join our Elasticsearch - Distributed Systems team and focus on how Elasticsearch provides scale, performance, and resilience. Supporting our support engineers with the harder problems. You have experience managing projects involving multip

Our pay ranges for our Principal Engineer position within London is: £92-818-£116-122 GBP. Led the development and delivery of production-grade software using a variety of languages and frameworks, including but not limited to: Python, Java, JavaScript, TypeScript, React, Ruby, Scala, R, SQL, and

As part of the M&S Software Engineering team, you'll be joining a well-loved historic brand, working on solutions that serves millions of loyal customers and thousands of colleagues! With ethical values that run right through the company's core and technology leaders that truly understand software e

Oliver Wyman is seeking a Principal Software Engineer (Cloud) to join our Retail Solutions team in the UK, with London or Newcastle being our preferred office locations but we can offer some flexibility. This is a hands‑on role that requires a strong SW engineering and cloud engineering foundation

A global healthcare leader in London is seeking a skilled software engineer to join our R&D Technology team. The ideal candidate will have significant experience in Python programming, cloud-native application architecture, and data engineering.

A leading biopharmaceutical firm in London seeks a Senior Principal Software Engineer to design cloud-native applications and maintain data pipelines. The ideal candidate will have a Bachelor's degree in Computer Science, extensive experience with full-stack development, and strong skills in Python,

Produce high-integrity, mission-critical software to defined engineering and quality standards. Contract Software Engineer (Ada) Real-Time Embedded. You’ll be trusted with complex problems, work closely with systems, hardware, and firmware teams, and play a key role across the full software lifecy

An innovative tech consultancy in the UK seeks a Principal Software Engineer to lead high-profile projects and influence technology strategy. You will manage a small group of engineers, mentor cross-functional teams, and advocate for modern engineering practices. Ideal candidates will have extensive

Principal Systems Engineer (6 positions). Principal Systems Engineer, R2 Storage. Principal Systems Engineer, R2 Storage.

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. Our Principal Software Engine

As a Software Test Engineer, you will ensure software products are robust, reliable, and meet the high standards expected by both Rowden and our mission‑focused customers. Principal Software Test Engineer. We are seeking a Principal Software Test Engineer to provide technical leadership and author

Senior Principal Software Engineer. You will interact with architects, software and data engineers, AI/ML modelers, product owners as well as other team members across R&D. Software Engineering & Application Development.

Act as a trusted advisor to engineering teams, providing hands‑on guidance in design, implementation, and code reviews. Coach and develop senior engineers, fostering a culture of excellence, ownership, and continuous learning. Drive adoption of engineering best practices — testing, CI/CD, observ

A leading technology firm in Greater London is seeking a Principal Software Engineer to drive the technical direction for high-profile projects. The role involves leading the delivery of modern, scalable software aimed at creating impactful, human-centered solutions.

As a Principal Software Engineer you are expected to participate in technical discussions to come up with a design to meet Product Requirements, develop test driven code, pair with team members, mentor juniors and support the existing API Platforms. Mentor lead software developers interested in cons

A leading retail company in the United Kingdom seeks a Principal Software Engineer to lead high-performing teams and drive engineering excellence. You will shape and inspire the software engineering culture while working with modern technologies like React, Java, and Azure.

A leading retail company is currently seeking a Principal Software Engineer to join their dynamic team in London. This role involves leading high-performing engineering teams, enhancing engineering excellence, and influencing technology strategy. The ideal candidate will have a deep expertise in sof

A leading cloud and software engineering consultancy in Greater London seeks a Principal Software Engineer to provide senior technical leadership. You'll design and evolve scalable software systems, mentor engineers, and influence architectural standards.

A leading insurtech company in Greater London is seeking a Principal Engineer to shape the technology direction and drive modernization initiatives. You'll lead by example in designing and delivering resilient, high-quality systems, and mentor junior engineers.

An established, global technology business within the hospitality‑tech industry is seeking an accomplished Principal Software Engineer to lead the design and delivery of next‑generation digital solutions. Get notified about new Principal Software Engineer jobs in. Delivery Consultant @ Fruition

We are on the lookout for a Principal Software Engineer II to join our Elasticsearch - Distributed Systems team and focus on how Elasticsearch provides scale, performance, and resilience. Supporting our support engineers with the harder problems.

I am looking for a Principal Software Engineer to join a leading AI cybersecurity startup who recently secured an additional $20 million in Series A funding. This Principal Software Engineer role will pay up to £115,000 (DOE) along with benefits, including career development opportunities, home off

Principal Software Engineer (DevOps)OracleUnited KingdomJoin OCI’s Edge Security team as a Principal Engineer to architect and deliver cloud-scale DDoS protection. Mentor engineers, influence cross-org roadmaps, and collaborate with Product, SRE, and Network Engineering from concept to GA. This ro

Platform - Principal Software Engineer (Billing Team). Proven record of mentoring engineers, setting technical direction, and elevating engineering quality standards. Elasticsearch develops and distributes encryption software and technology that is subject to U.

A leading fintech scale-up in the UK is seeking a Principal Software Engineer to drive the development of a new credit card product.

As a Software Development Engineer at Autodesk Research, you will work side‑by‑side with world‑class researchers and engineers to build new ML‑powered product features that help our customers imagine, design, and make a better world. Principal Software Development Engineer - CAD/Geometry. Yo

A leading technology firm in Greater London is seeking a Principal Software Engineer to shape the technical direction of high-profile projects. You will lead the design and development of scalable software solutions while mentoring engineers and managing a team.

A leading tech solutions provider in Greater London seeks a Principal Engineer to guide projects that leverage AI/ML, deliver high-quality software, and build strong client relationships.

Senior Systems & Regulatory Software Engineer. Systems / Regulatory Software Engineer. Hybrid working with a Kent-based engineering hub.

A global information analytics company is seeking a Principal Software Engineer to enhance its API Platforms, focusing on design, development, and mentor junior team members.

We are looking for a Principal Software Engineer (we call them Principal Software Craftspeople) who shares the same values of pragmatism, professionalism and transparency as us to join our team. You bring deep hands-on experience in software engineering, particularly modernisation, with a track reco

As the Principal Engineer, Software Supply Chain Security, you’ll own the technical strategy that secures how software is built and delivered on GitLab’s DevSecOps platform. Experience operating as a Principal or Staff Engineer across multiple development teams, providing architectural leadershi

Principal Embedded Software Engineer - Southampton - £70k - £80k. Hexwired Recruitment has partnered with a world renowned Electronics manufacturer based in Southampton who are now seeking a Principal Embedded Software Engineer to help develop and maintain a brand new system the company is develop

A leading technology consulting firm in London is seeking a Principal Software Engineer to drive technical direction and client engagement. This role requires extensive experience in software development, particularly with AI and ML technologies.

Elasticsearch - Principal Software Engineer I (Distributed Systems). Principal Software Engineer I - Distributed Systems. We are looking for a senior engineer to join our Elasticsearch - Distributed Systems team and focus on scale, performance, and resilience.

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

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 has hands-on software testing experience and a relev

A leading cloud consultancy in the UK is looking for a Principal Software Engineer to lead the design and delivery of modern scalable software systems. You will mentor engineers and act as a senior technical advisor, guiding customers through complex architectural decisions.

A leading global financial services firm seeks an experienced Principal Software Engineer specializing in Java development for algorithmic trading.

Were looking for a Principal Software Engineer to shape the technical direction of high-profile projects and lead the delivery of modern, scalable software. Youll provide hands‑on technical leadership, working closely with senior stakeholders, mentoring engineers across multiple teams, and line ma

A leading foreign exchange provider in the UK is looking for a Principal Software Engineer to shape their technology platforms.

Oliver Wyman is seeking a Principal Software Engineer (Cloud) to join our Retail Solutions team in the UK, with London or Newcastle being our preferred office locations but we can offer some flexibility. A strong understanding of software engineering best practices such as version control, CI/CD, au

As our Principal Software Engineer, you ll be a technical authority across our digital platforms, combining architectural vision with practical delivery. This is a senior, hands‑on technical leadership role where you ll influence architecture, guide engineering standards, and deliver enterprise‑

It was a formative experience for me as a software engineer because success relied on my ability to be a product manager and designer. While they lead product and technical areas and help other engineers plan their most challenging work, it’s not a requirement, nor do engineers need their sign‑o

This Principal Software Engineer role is designed for a hands‑on technical leader with strong C++ and Unreal Engine expertise, working at the forefront of complex, performance‑critical software delivery. The role combines advanced engineering with genuine technical authority, shaping how simulat