1 to 25 of 41 Principal Engineer Jobs in London

Principal Engineer - Active NPPV3, Active SC, 4GL Up to £640 per day (Inside IR35) London/Remote 12 Months My client is an instantly recognisable consultancy who require a Principal Engineer with Active NPPV3 and Active Security Clearance (SC), to help lead a business critical project … client. Key Requirements: Proven experience as a Principal Engineer Active NPPV3 and Active Security Clearance (SC) Proven experience leading multiple engineering teams on complex, large-scale projects Strong capability in stakeholder engagement across technical and non-technical groups Demonstrated leadership and mentoring skills, supporting the growth and development ...

Principal Data Engineer (GCP) Northwest – Hybrid Up to £100,000 VIQU are seeking a Principal Data Engineer to join a leading social enterprise that reinvests profits to create thriving, sustainable communities. Following a full transition to a 100% cloud-based data platform, this role will play … data engineering capability, with a strong focus on technical leadership, platform design and mentoring engineers within a Google Cloud environment. Key Responsibilities of the Principal Data Engineer: Provide technical leadership, coaching and mentoring to data engineers Define how data engineering projects are approached, delivered and governed Work closely ...

Principal Backend Engineer/Developer (Node.js Golang API) London onsite Do you have experience of designing and implementing scalable solutions to handle high throughput systems? You could be progressing your career in a senior, hands-on Principal Backend Engineer role at a global cryptocurrency market data … that is experiencing great success and is growing as a result, the systems currently deal with multiple billions of events per month. As a Principal Backend Engineer you will collaborate across various technical teams in the business, overseeing technical standards and driving excellence. You'll develop and champion ...

Principal Data Engineer £90,000 - £95,000 + Benefits Remote - Once or twice a month in the office The Business A large, UK-based property organisation operating at a national scale. They are focused on delivering and managing long-term community services and initiatives and have a strong … emphasis on social impact, sustainability and modern digital transformation. The Role The Principal Data Engineer will be a senior technical leader within a growing data engineering team. You ll help shape engineering strategy, architecture, and best practices across multiple product areas, supporting a data mesh approach while ensuring ...

Principal Software Enginee r Location: London (Hybrid – approx. 1–2 days per month onsite) Contract: Permanent, Full-time Package: £80,000–£100,000 + 10% bonus + 10% share options + benefits Eligibility: UK Security Clearance (SC) eligibility required The Opportunity We’re working with a specialist cloud … public-sector environments to modernise how software is built and operated. The business is expanding its software engineering capability and is hiring a Principal Software Engineer to play a key role in shaping technical direction, delivery standards, and engineering best practices across multiple engagements. This is a hands ...

Principal Platform Engineer | High-Growth Cybersecurity Scale-Up | Fully Remote (UK based) An opportunity to join a fast-growing, research-led cybersecurity scale-up trusted by global enterprise customers. Backed by strong funding and industry recognition, the business is scaling its platform globally and is looking … experienced Principal Platform Engineer to help lead that growth. As a Principal Platform Engineer, you’ll be a senior technical leader responsible for designing, scaling and optimising large-scale infrastructure. You’ll work closely with engineering leadership to ensure systems are resilient, observable and built ...

Principal Support Engineer Location: Hybrid role with some on-site expectations We seek an engineer with recent high-integrity or safety-critical industry experience (defence, aerospace, or similar), or eligible for UK security clearance. Overview The Principal Support Engineer is a senior technical authority within ...

Principal Backend Engineer London (Occasional travel) Salary: £95,000 - £120,000 + RSU's + Benefits 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. This … successful? Degree in Computer Science or equivalent hands-on experience. 7+ years' experience in backend software development, including several years in a senior or principal-level engineering role. Expertise in Python (or a similar backend language), with proven experience designing distributed systems, APIs, and microservices at scale. Deep understanding ...

Principal Support Engineer Location: Hybrid role with some on-site expectations We seek an engineer with recent high-integrity or safety-critical industry experience (defence, aerospace, or similar), or eligible for UK security clearance. Overview The Principal Support Engineer is a senior technical authority within ...

Principal Software Engineer – AI & Innovation Recruiting a Principal Software Engineer with a proven track record of delivering innovative, AI driven solutions and the curiosity to explore beyond traditional technology boundaries. Within the newly createdAI & Innovation team, you will shape the future of the organisation's products ...

their most complex problems. This is an opportunity to be a top technical voice, influence the system, and mentor a talented team. As a Principal Engineer , you will be a hands-on problem solver and a technical leader, influencing the team through expertise and example rather than line … Lead by Example: Run training sessions and facilitate discussions to elevate the entire engineering team. Who We're Looking For You are a seasoned engineer with 10-15 years of experience, a track record of building maintainable, scalable services and systems, and an upward trajectory in your career. ...

Principal AI Engineer AI Platform Team Location: Remote UK Compensation: £110 - 125k GBP Join a New AI Engineering Team A major digital organisation is launching a brand-new AI Engineering function to drive the enablement, adoption and scaling of Generative AI across the entire business. This team will … productivityfrom multi-agent workflows to LLM observability, MCP integrations and enterprise-grade GenAI systems. We are hiring both Senior/Lead Software Engineers and Principal Software Engineers to help shape the companys next-generation AI platform. What Youll Do (All Levels) Design, build and scale foundational GenAI platform capabilities ...

Principal Engineer Competitive salary + equity London, Marylebone (Hybrid/Onsite) Do you thrive on transforming ambitious AI ideas into elegant, scalable systems that solve real-world problems? The focus has shifted heavily toward Agentic AI —systems that use reasoning loops to execute complex business processes independently. This … role is currently a major "Force Multiplier," as one engineer building an effective agentic fleet can automate the output of an entire traditional department.Are you excited by the opportunity to shape how an entire industry interacts with conversational AI Join us at the forefront of the largest and most ...

Principal AI Engineer | London | Excellent Salary +Benefits Join an award-winning, internationally recognised International B2B Consultancy organisation as a Principal AI Engineer , where you will play a pivotal role in shaping and delivering production grade generative AI capabilities. This is a senior; hands-on engineering role … Demonstrable experience owning technical design and delivery of complex AI, ML, or data-driven systems in production environments. Experience operating as a senior AI engineer or technical lead, balancing experimentation with production delivery and communicating effectively across teams. This is a progressive career opportunity to work at the cutting ...

Principal Full Stack Engineer (TypeScript Node React AWS) London/WFH to £110k Are you a full stack technologist? You could be progressing your career in a hands-on technical leadership role at a well established consumer facing financial services company that help people to manage debt … they go through a technical transformation and scale-up following recent investment. As a Principal Full Stack Engineer you will act as a technical authority and role model for engineers across engineering teams/Agile Squads, helping them with design, problem-solving and complex technical decisions. ...

Principal Software Engineer - AI & Innovation Recruiting a Principal Software Engineer with a proven track record of delivering innovative, AI driven solutions and the curiosity to explore beyond traditional technology boundaries. Within the newly createdAI & Innovation team, you will shape the future of the organisation's products ...

Principal AI Engineer AI Platform Team Location: Remote UK Compensation: £110 - 125k GBP Join a New AI Engineering Team A major digital organisation is launching a brand-new AI Engineering function to drive the enablement, adoption and scaling of Generative AI across the entire business click apply ...

Principal Data Engineer (MS Azure) Location | UK Remote Salary | Up to £68,000 home based nationally or up to £75,000 home based for those living within the M25 dependent on experience plus a £600 per annum home working allowance Job Ref | J13058 We are looking … Principal Data Engineer to help shape the technical direction of data engineering across a cloud based Enterprise Data Platform built on Microsoft Azure. This role suits someone who combines strong hands on data engineering experience with the ability to guide teams, set standards, and influence how data solutions ...

Principal Embedded Software Engineer £75,000 - £90,000 + equity London (3 days per week in office) Overview TalentEdge Technology are looking to hire a Senior Embedded Engineering Leader to take ownership of the firmware stack for a next-generation, AI-enhanced connected music hardware platform. This role … hands-on and deeply technical, suited to an engineer who enjoys working across the full embedded stack, from low-level hardware bring-up through to cloud-connected features and who places a premium on robustness and real-world reliability. What You’ll Be Working On: Ownership and evolution ...

looking for a visionary Hybrid Principal Data Engineer/Architect to build our data foundation from scratch. Reporting to the Head of Engineering, you will bridge the gap between complex scientific data and commercial software, owning the strategy, architecture, and initial codebase. The ideal Principal Data Engineer … team, promoting IaC (Terraform) and CI/CD best practices. Your Toolkit Expertise: 7+ years in Data Engineering with experience in a Lead or Principal capacity. Tech Stack: Deep knowledge of Databricks and the Azure ecosystem (ADF, Synapse, Cosmos DB). Coding: Expert-level Python and SQL ; experience with ...

Role : Product Engineer Salary range: Senior: 90-120k | Staff: 120-140k | Principal: 140-160k Location : Central London (x3 days per week onsite - Tue/Wed/Thurs) Tech stack includes : Typescript, React, Material UI, NodeJS, Postgres, AWS (Serverless) Current team size : 35 Engineers … like Spotify, Monzo, and Wise on board. • Background of team includes ex. Tessian, Cazoo, Tractable, Primer & Freetrade, Bloomberg (to name a few) Senior Software Engineer 5+ years experience Staff Software Engineer 8–10+ years experience Principal Software Engineer 12–15+ years experience Essentials: Strong Full Stack ...

Front End-leaning Principal engineer who wants to combine your experience in web and AI to help unlock other engineering teams, this might be the role for you. This role will also be an opportunity to apply AI to real-world problems inside a healthy, profitable, and rapidly … time. You will help them stay ahead of the curve by solving both technical and sociotechnical problems. You would be joining a squad of Principal engineers with different expertise that serves as a centre of excellence to the 16+ engineering teams in the wider engineering function. Your domain? Everything ...

looking for a visionary Hybrid Principal Data Engineer/Architect to build our data foundation from scratch. Reporting to the Head of Engineering, you will bridge the gap between complex scientific data and commercial software, owning the strategy, architecture, and initial codebase. The ideal Principal Data Engineer ...

Principal Software Engineer (Solutions Architect) About HL And The Opportunity We're building the next generation platform for one of the UK's largest financial services companies, trusted by over 2 million clients and managing c.£150 billion in assets. This is your opportunity to shape technology that … teams with adoption. About You 10+ years of experience with Web/Front End & Mobile software engineering and at least 4+ years in a Principal Engineering or Solution Architect role or similar Deep understanding of Front End/Web and Mobile architecture approaches and design patterns including micro front ...

Principle Engineer This is a role for engineers who like big systems, hard problems, and meaningful ownership. You’ll be joining a team operating at the intersection of software, hardware, and AI. The engineering team is small, ambitious, and deeply technical, building the orchestration systems that keep thousands ...