1 to 25 of 54 Remote/Hybrid Principal Engineer Jobs in London

Principal Engineer – HighQ Thomson Reuters is hiring a Principal Engineer for HighQ, our enterprise collaboration platform for the legal industry used by leading law firms worldwide to deliver digital services to their clients. About the role This is a senior individual contributor role. The Principal Engineer sets technical direction across HighQ's most significant engineering work, owns outcomes from design through production, and is directly accountable for raising the engineering bar across the organisation. The role partners closely with directors, architects, and Staff engineers, and operates as a senior technical voice in decisions ...

Principal Engineer l Architecture l Design l Coaching l Typescript l AWS l Kafka l GraphQL l Lambda l £550-£625 per day l Outside IR35 l twice a week in London l 3 months We're hiring a Principal Engineer to step into a critical … customer migration. You'll operate as a technical leader across multiple squads, shaping architecture, mentoring leads, and unblocking delivery. Essential Skills & Experience Proven Principal-level experience (80% Architecture/design - 20% Coding) Strong in AWS, TypeScript, event-driven systems Experience with high-scale distributed systems Someone collaborative, hands ...

.Principal/Consulting Engineer page is loaded## Principal/Consulting Engineerlocations: Oxford: Londontime type: Full timeposted on: Posted Todayjob requisition id: R112322**Principal Engineer****About the role:**As a Principal Engineer, you will help shape the technical direction of platforms used by the global … learning• Support teams in using AI-assisted development and production AI patterns where they add real value**Requirements:**• Experience working at senior, staff, or principal engineer level across multiple teams or domains• A track record of influencing technical decisions and supporting change at scale• Experience designing and evolving ...

Principal Full Stack Engineer & Architecture Lead London (Hybrid) £80,000 - £90,000 + Benefits Command Recruitment is proud to be partnering with an ambitious and rapidly growing healthcare company that is transforming access to specialist healthcare services across the UK. This is a fantastic opportunity for an experienced … Principal Engineer or Technical Architecture Lead to play a key role in shaping a modern, cloud-native healthcare platform that is making a genuine impact on people's lives. Our client is building one of the UK's most innovative healthcare service platforms and is seeking a hands ...

Principal Engineer – Data & AI Platforms London | Hybrid Working Are you a highly experienced data engineering leader looking to shape the future of data, AI, and cloud platforms at enterprise scale? An exciting opportunity has arisen for a Principal Engineer to join a market-leading technology ...

Thomson Reuters is hiring a Principal Engineer for HighQ, our enterprise collaboration platform for the legal industry, used by leading law firms worldwide to deliver digital services to their clients. This is a senior individual contributor role. The Principal Engineer sets technical direction across HighQ … technical strategy. Provide technical leadership and mentorship to engineering teams, raising the standard of work across the organisation. Contribute as a hands‐on engineer, writing production code and reviewing the work of others. Work with product, architecture, and engineering peers to turn business requirements into sound technical designs. Lead ...

Principal Java Engineer (Individual Contributor) 6-Month Contract | Outside IR35 | Paddington (3 days/week) We are partnering with a leading UK retail organisation on a significant payments and platform transformation. We seek a Principal Java Engineer to join as a hands‐on individual contributor, playing … scaling high-volume, mission‐critical payment systems. You will remain deeply involved in coding while influencing design and technical direction. The Role As a Principal Java Engineer, you will design and develop scalable backend services that facilitate secure payment transactions at scale. The environment is modern, cloud‐native ...

Principal Engineer (Data & Platforms) Location: London (Hybrid) Role Overview We are seeking a Principal Engineer to provide technical leadership across complex, large-scale data platforms and engineering teams. This role sits at the intersection of data engineering, architecture, and strategic technology leadership, driving the design … Influence Partner with senior stakeholders, architects, and product leaders on roadmap direction Align engineering execution with business priorities and data strategy Collaborate with other Principal Engineers to ensure consistency across domains Required Skills & Experience Extensive experience in cloud data engineering and large-scale distributed systems Strong expertise ...

Principal Software Engineer We are looking for a highly experienced Principal Software Engineer with strong backend engineering expertise and a passion for scalable distributed systems. You will play a key role in shaping architecture, engineering standards, and technical direction across the platform. Join a fast-growing … Banking SaaS provider building next generation core banking technology. We are looking for Principal Software Engineers with experience in Node.js/TypeScript/JavaScript, .NET/C#, or Java. You will work directly on customer problems, understand the business context and own solutions end-to-end. From concept ...

Principal Software Engineer We are looking for a highly experienced Principal Software Engineer with strong backend engineering expertise and a passion for scalable distributed systems. You will play a key role in shaping architecture, engineering standards, and technical direction across the platform. Join a fast-growing … Banking SaaS provider building next generation core banking technology. We are looking for Principal Software Engineers with experience in Node.js/TypeScript/JavaScript, .NET/C#, or Java. You will work directly on customer problems, understand the business context and own solutions end-to-end. From concept ...

Principal Data Engineer Location: London 1 day per week onsite Salary: Up to £85,000 + excellent benefits Contract: Permanent Im currently supporting one of the UKs leading universities with the recruitment of a Principal Data Engineer to join their growing Data function. This ...

Principal Software Engineer | Applied AI | Fully Remote Principal Software Engineer required for well backed and rapidly growing start-up to help build and scale systems at the cutting edge of applied AI. This is a high-impact role focused on solving complex, real-world engineering problems … play a key role in designing and delivering production-grade systems where intelligent agents operate at scale. You are an experienced, hands-on backend engineer with strong expertise in Python and/or Go , and a proven track record of putting AI agents into production in recent years. About ...

Principal Software Engineer | Applied AI | Fully Remote Principal Software Engineer required for well backed and rapidly growing start-up to help build and scale systems at the cutting edge of applied AI. This is a high-impact role focused on solving complex, real-world engineering problems … play a key role in designing and delivering production-grade systems where intelligent agents operate at scale. You are an experienced, hands-on backend engineer with strong expertise in Python and/or Go , and a proven track record of putting AI agents into production in recent years. About ...

Principal/Lead Engineer Python/Cloud/Terraform/IAM/DevOps/infrastructure-as-a-code IaC Rate: Circa £600 - £700 PD (Outside IR35), 6 Months Location: London/Hybrid x2 days We are seeking an experienced Principal/Lead Engineer to join ...

overview Our vision is to enable Sky’s growth ambitions through Data and AI: deepening customer relationships, optimising commercial performance, and enhancing operational efficiency. Principal Engineers Operate within defined domains and provide leadership to our Solution Architects. With deep technical expertise, they act as Technical Leads, shaping future‐ready … objectives. They set, evolve, and uphold engineering standards across the team, continually raising the bar for quality, innovation, and delivery. As a senior role, Principal Engineers play a critical part in connecting Data Engineering with wider Technology and Architecture functions. They work collaboratively across teams to ensure alignment, consistency ...

慨正橡扯 is hiring a Principal Engineer in London. You'll leverage over 10 years of experience in software development, guiding technical direction and driving innovation for various clients. This role involves building high-quality software, mentoring teams, and fostering client relationships. The position is hybrid, requiring ...

PowerToFly is seeking a Principal Engineer for HighQ, the enterprise collaboration platform for the legal sector. This role focuses on technical leadership and the engineering direction across significant projects. Ideal candidates have a strong background in Java and Python, and experience with complex software systems, AI integration ...

Refinitiv is hiring a Principal Engineer to drive technical direction for HighQ, an enterprise collaboration platform. This senior role involves mentoring engineers, designing complex systems, and integrating AI technologies. The ideal candidate will have expertise in Java and Python and a proven track record in delivering software solutions. ...

taking the direct route or trying a new path, we’ll support you no matter what. The Role We’re looking for a Principal Engineer – Payments to join Masabi’s Architecture team, with a primary focus on our payments domain. This is a senior role for someone … Good understanding of payment flows, transaction lifecycles and system design considerations Experience designing and evolving distributed systems and microservices architectures You’ve operated at Principal or Staff level, shaping technical direction across multiple teams or domains Strong judgement and the ability to balance short‐term delivery with long‐term ...

Fintech company in Cardiff is seeking a Principal Engineer to lead technical direction and mentor engineers. This hybrid role involves collaborating with product teams, engaging with stakeholders, and designing robust APIs and platform functionalities. Candidates should have significant experience in large-scale systems, coding languages such as Java ...

Principal Sales Engineer Job Locations: UK‐London Job ID: 2026‐2200 Category: Sales Remote: No Overview Seismic transforms go‐to‐market teams by unifying content, learning, execution, and insights into a single AI‐powered enablement platform – so every seller, marketer, and leader is aligned, prepared, and able … about our product and takes a consultative approach to selling our solution across several verticals, including Financial Services, Manufacturing, High Tech, and more. Our Principal Sales Engineers have a unique combination of technical savvy and business acumen. As a trusted advisor and expert in Seismic’s products and services ...

high-velocity Legal AI startup is seeking a Principal Engineer to lead the technical development of a platform that automates complex legal workflows for global VC funds. You will architect and ship features using TypeScript and Node.js, and manage enterprise-grade security for sensitive data. The role offers ...

Principal Design Engineer – Structured Cabling Permanent or Long Term Freelance | Greater London/Hybrid Working A specialist engineering consultancy delivering ICT and low voltage infrastructure solutions across complex technical environments is seeking a Principal Design Engineer to support the delivery of large-scale infrastructure projects across ...

Principal Cloud Engineer (AWS) - (Multiple) 📍 Central London (Hybrid – 3 days onsite) 💰 £95,000 – £130,000 + bonus + great benefits Defence/SC Clearance Requirements SC clearance is required for our customer facing teams. You do not need active SC clearance as we will undertake checks upon … platform. From landing zones to cloud operations and risk mitigation, we're at the forefront of cloud transformation — and we're looking for a Principal Cloud Engineer (AWS) to join our team. What you’ll do Design & build enterprise-scale AWS landing zones Automate complex AWS platforms with ...

Principal Platform Engineer - UK Security Clearance required. Location: London, UK (Hybrid – typically ~1 day per week in office/on-site) Contract: Permanent, Full-time Package: £90,000 – £120,000 + 10% Bonus + 10% Shares + Benefits (see more below) About Us At Appvia, we help organisations … work across public and private sector customers, supporting large‐scale transformation programmes and long‐term platform evolution. About the Role As an AWS Principal Platform Engineer, you will play a senior technical leadership role across Appvia’s platform engineering engagements. You will help customers design, build, and evolve ...