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We are seeking a Principal Embedded Software Engineer to join a highly technical team delivering advanced systems within the maritime and defence sector. Key Responsibilities Take ownership of embedded software delivery, from early concept through to verification and release Define and maintain sof

Principal Software Engineer - TypeScript, JavaScript, Angular, Linux, IoT, K8Southampton (Onsite)£75,000 + generous pension & benefitsAre you a Principal Engineer who thrives on solving real-world problems with cutting-edge technology?This is an opportunity to join a talented engineering team build

We are hiring a Principal Software Engineer (Embedded Systems) based in Normanton, West Yorkshire to lead the design and development of cutting-edge embedded software for next-generation products. This is a senior-level opportunity for an experienced Normanton based Principal Software Engineer with

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.

Principal Software Engineer – AI & InnovationRecruiting a Principal Software Engineer with a proven track record of delivering innovative, AI driven solutions and the curiosity to explore beyond traditional technology boundaries.

About the Role:**As a Principal Engineer, you will help teams do their best work by improving engineering practices, reducing delivery risk, and fostering a culture of trust, learning, and high standards. Works with Architects and other Principals to drive technical direction while partnering effect

A leading UK retailer is looking for a Principal Engineer to shape technical direction and deliver strategic goals in their Personalisation product group. This pivotal role involves leading engineering excellence and collaborating with cross-functional teams to enhance customer experiences through t

Principal Software Engineer - Python - Fully Remote (UK). Software Engineering Experience with proficiency in Python. Looking for a world class Python Engineer, with experience with TypeScript and ideally DevOps to play a crucial role.

This is a principal software engineering role that entails using your vast knowledge in this space in order to define, direct, and build the next generation of Elasticsearch capabilities. We're looking for a Principal Software Engineer to join the Elasticsearch - Search Scaling team. You bring prove

A leading technology company is seeking a Principal Software Engineer in London to collaborate with AI researchers and bring innovative health solutions to market. The ideal candidate will have a background in software engineering, knowledge of distributed systems, and a passion for user experience.

Principal Software Engineer (London-Hybrid). Our pay ranges for our Principal Engineer position within London is: £92‑818‑£116‑122 GBP. From early‑stage startups to global enterprises, we work across industries to optimise our clients’ digital products through product strategy innovation

You’ll mentor a team of senior engineers, set technical direction, and drive engineering excellence while remaining hands‑on with critical systems. You have 10+ years software engineering experience building and operating production systems, with proven technical leadership in infrastructure aut

A leading engineering firm in the UK is seeking a Principal Embedded Software Engineer to join a skilled team focused on complex maritime and defense projects. This position involves ownership of embedded software delivery, guiding technical direction, and developing engineering processes within a s

As a Principal Software Engineer, you will work directly with hospitals and clinics to deploy and refine enterprise-grade healthcare systems. The team is seeking exceptional engineers who excel at building real-world systems to tackle humanity’s toughest problems. While Python is the core stack, t

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.

Principal Software Engineer – Would you like to be part of a brand-new engineering group focused on redefining how people move through next generation digital experiences? This is a rare opportunity to join an internal innovation incubator exploring AI, AR, mobile, web and emerging technologies, w

A leading technology firm in Greater London is seeking a Principal Software Engineer to design, develop, and maintain critical infrastructure. This role involves ownership of team deliverables, collaboration with external partners, and mentoring engineers.

A leading technology and consulting firm in London seeks a Manager to lead client accounts and engineering initiatives. The position demands proven leadership in managing teams and client relationships, with full-stack engineering skills across technologies such as React, Node.

Firmware sits at the core of their products, and they are looking for a Principal Embedded Engineer to help build the embedded platform that will power every device they create. Comfortable working cross-functionally with engineers, designers and product teams to translate product ideas into working

Principal Software Engineer - TypeScript, JavaScript, Angular, Linux, IoT, K8. Are you a Principal Engineer who thrives on solving real-world problems with cutting-edge technology?. This is an opportunity to join a talented engineering team building advanced, real-time software systems used in safet

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

A leading technology company seeks a Principal Software Engineer II in London to enhance Elasticsearch's core search features. The candidate will work independently and mentor engineers while shaping the company's technical roadmap using tools like Elasticsearch and Lucene.

Principal Software Engineer - Personalisation. Mentor and support senior engineers, helping to raise the overall engineering capability. Job Category Software Engineering.

A leading UK Challenger Bank is seeking Mid-Senior Software Engineers to contribute to their growth. If you have experience with TDD, CI/CD and value engineering maturity, apply to join a dynamic team focused on solving complex problems. This contract role, based in Liverpool, requires collaboration

Mentor and support senior and mid-level engineers. Discussion around mentoring engineers and technical leadership. Final discussion with the CTO or Head of Engineering.

We are looking for an experienced Senior C/C++ modeling Engineer to join our hardware team. In this role, you will collaborate with SOC architects, design, and verification engineers to implement and model the design functionality of custom blocks. BS in Engineering or a related discipline or equiva

We’re looking for a Principal Software Engineer to play a key role in shaping and evolving a scalable technology platform within a highly collaborative engineering environment. Principal Software Engineer (C#) | London | £110,000-£130,000. This is an opportunity to combine hands‑on technical l

We’re looking for Senior and Principal Engineers who want to shape meaningful systems, influence technical direction, and work alongside capable people who care about doing the job properly. You’ll help design and build modern cloud‑native services, guide engineering standards, and solve genui

A fast-growing fintech company in London is seeking a Principal Software Engineer to shape and evolve their technology platform. This role combines technical leadership with strategic influence, guiding architecture decisions while mentoring engineers.

You’ll be part of our experienced software development function, working in a cross‑functional team and delivering and deploying critical software across a variety of business areas. Design and build software using industry best practice. Collaborate with stakeholders and other engineers.

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.

As a Principal Engineer at JPMorgan Chase within the Accelerator, you are the heart of this venture, focused on getting smart ideas into the hands of our customers. Recruit, mentor and lead a lean, high‑impact engineering team. Formal training or certification on React engineering concepts and pro

We’re committed to creating category-leading enterprise software that unleashes that power.

A leading UK retailer is seeking a Principal Engineer to drive engineering excellence and shape modern technology standards. In this role, you will influence the future of retail technology while working in a collaborative engineering community.

Elasticsearch - Principal Software Engineer II - Search Internals, Lucene. This is a principal software engineering role that entails using your vast knowledge in this space to define, direct, and build the next generation of Elasticsearch capabilities. We're looking for a Principal Software Enginee

Polyglot engineering background; strong proficiency in Node. The engineering team is responsible for infrastructure that handles high-volume real-time market data and powers critical decision-making for institutional and retail audiences.

Consulting/Principal Software Engineer. About 7+ years of experience in Software Engineering, Quality Engineering, or related roles, contributing to complex systems in production. A degree in Computer Science, Engineering, or a related field, or equivalent practical experience gained through work, t

As a Principal Engineer at M&S, you’ll play a critical role in shaping our technical direction and delivering against our strategic goals. Mentor and support senior engineers, helping to raise the overall engineering capability. Acting as a senior technical leader, you’ll drive engineering excel

A growing SaaS platform provider in Central London is seeking a Principal Engineer to guide the technical direction of its product. The successful candidate will be essential in delivering high quality solutions, mentoring engineers, and contributing to architectural decisions.

Mentor and support senior engineers, helping to raise the overall engineering capability. As a Principal Engineer at M&S, you'll play a critical role in shaping our technical direction and delivering against our strategic goals. Define and drive technical strategy, architecture, and engineering stan

You'll work on cutting-edge AI-powered digital identity solutions, collaborating in a close-knit, agile team that values quality, testing, and rapid deliveryThe Role: As a Backend Software Engineer (Mid-level), you will: Essential Experience: Strong software engineering experience with a

As a Principal Engineer, you will set technical direction and drive the Kibana backend architecture for the agentic platform: streaming APIs, secure tool execution, session and memory persistence, retrieval and citations contracts, and evaluation telemetry. Mentor senior and junior engineers; grow t

You’ll also mentor engineers, foster best practices in test automation, and help shape our quality engineering capability. Principal Software Developer in Test (SDET). Location: London (Hybrid) | Practice Area: Technology & Engineering | Type: Permanent.

The Principal Software Engineer shapes and evolves our architecture using Distributed Domain Driven Design practices, ultimately ensuring the robustness and scalability of our systems. Knowledge of multiple software stacks. Skilled with designing and operating software in a Cloud Provider such as AW

Contribute to the software infrastructure to ensure seamless software deployments. As a Principal Embedded Engineer in the Devices team, you’ll be helping expand the feature-set of our existing devices while ensuring the codebase is maintainable, allowing us to continue to deliver the next generat

A leading GPU cloud provider in the UK is seeking a Principal Software Engineer to lead the development of their Fleet Manager platform. Responsibilities include mentoring a team of engineers and establishing best practices for infrastructure reliability and operational excellence.