1 to 25 of 241 Permanent Principal Engineer Jobs in London

PRINCIPAL PLATFROM ENGINEER- SC CLEARED PRINCIPAL PLATFORM ENGINEER Permanent opportunity for a Principal Platform Engineer who is eligible for SC Clearance Salary up to £110,000 DOE Hybrid opportunity with London based offices To apply, please call Laura Jackson on 02038540120, or email laura.jackson … searchability.com with an up-to-date CV. WHO ARE WE? We're looking for an experienced Principal Platform Engineer to join one of the UK's leading technology consultancies, delivering large-scale cloud platforms for critical Public Sector programmes. You'll be the technical authority responsible for helping ...

Principal Engineer - Lead Tech Strategy for a Profitable FinTech Scale-Up Hybrid (London) or remote within the UK Up to £160,000 per annum plus stock options Python | Django | FastAPI | AWS | Rust | Postgres | Event-Driven Architecture | Machine Learning Principal Engineer - We're working with a leading … that's transforming how small businesses access finance. Backed by a strong track record and an ambitious mission, they're now looking for a Principal Engineer to lead the next phase of innovation within one of their most critical product areas. This is a strategic leadership role offering ...

PRINCIPAL SOFTWARE ENGINEER - eDV CLEARED NEW PERMANENT OPPORTUNITY AVAILABLE IN LONDON FOR AN eDV CLEARED PRINCIPAL SOFTWARE ENGINEER Salary: Up to £120,000 + Clearance Bonus Location: London Clearance: Active eDV clearance required for high-side IT access Type: Permanent To apply, email: I'm currently … working with a leading technology organisation operating across National Security and Defence, who are looking for an experienced Principal Software Engineer to join their growing engineering function. This is a senior technical leadership position where you'll be working on complex, mission-critical systems, taking ownership of technical ...

Grade: 3A Contract Type: Permanent Working Pattern: Hybrid Location: London/Chesterfield Closing Date: 29th September 2026 What to expect As a Workplace Platforms Principal Engineer, you will join us on our journey and undertake a highly influential role responsible for the technical leadership, design assurance, operational resilience … robust, secure and fit for the future. How our people behave is as important to Post Office as what is delivered. The Workplace Platforms Principal Engineer will role model the Post Office behaviours and demonstrate a Postmaster-first mindset. What we can do for you Our business ...

Principal Engineer Fully Remote Outside IR35 Day Rate We’re partnering with an innovative, technology-led organisation to appoint a highly experienced Principal Engineer. This is an exciting opportunity for a senior technical leader to drive the transformation of a complex Java estate, leading advanced containerisation initiatives … particularly interested in engineers with deep experience modernising legacy systems, integrating CI/CD pipelines and mentoring senior technical teams. The Opportunity As Principal Engineer, you’ll lead pivotal engineering initiatives focused on making a complex Java estate fully containerisable. You’ll use your technical expertise to replatform ...

PRINCIPAL DEVOPS ENGINEER- SC CLEARED PRINCIPAL DEVOPS ENGINEER - Permanent opportunity for a Principal DevOps Engineer with SC Clearance. - Salary up to £110,000 DOE - Hybrid opportunity with London based offices - To apply, please call Laura Jackson on , or email with an up-to-date … CV. WHO ARE WE? We're hiring for DevOps Engineers at principal level to join a top consultancy delivering cutting-edge solutions for industry-leading Public Sector and Defence clients. You'll have the opportunity to work across multiple high-impact, innovative and mission-critical projects, shaping solutions that ...

Principal Mechanical Design Engineer Building Services Location: Fully Remote, UK Travel: London approximately twice per month Employment Type: Permanent Sector: Building Services/Engineering Consultancy Discipline: Mechanical Design The Opportunity A leading engineering consultancy is seeking an experienced Principal Mechanical Design Engineer to join its growing … team on a fully remote basis, with travel to London approximately twice per month. This is an excellent opportunity for a senior Mechanical Design Engineer with a strong background in building services to take a leading role across a diverse portfolio of technically challenging projects. The successful candidate will ...

Principal Software Engineer/Principal AI Engineer Are you excited about building intelligent systems powered by innovative AI technologies? Do you enjoy designing models that turn complex data into impactful solutions? About the team: Embedded Innovation Teams are cross-functional squads embedded within our segments … inside segment and function teams, improving the internal workflows that help our people deliver better outcomes for customers, faster. About the role: As a Principal AI Engineer, you will be the technical lead for an embedded Innovation Squad, owning technical execution from discovery through to production. You will ...

digital products, services and experiences that capture the imagination and deliver impressive returns for our clients. We are looking for a senior, architecture-led Principal Engineer to join our London Technology team. This is a hands‐on engineering role, not a strategy‐only or evangelism position. You will … Generative AI is increasingly embedded across this design‐to‐application workflow, accelerating the path from design intent to production‐ready code and experiences. The Principal Engineer (Tech Lead) is a key technical contributor across the programme lifecycle, working closely with Technical Managers, cross‐discipline teams and on‐shore ...

Principal Engineer | Financial Services | London | Permanent | Hybrid | up to £150k I'm working on an exciting opportunity for a Principal Engineer to build new digital fintech products from the ground up (Greenfield). This is a genuinely hands-on Principal role - you'll lead … technical decisions, mentor engineers and stay hands on engineering digital products. Required: 7-8+ years' software engineering experience, with experience leading as a principal, staff level or tech lead. Strong system design & technical leadership Full-stack experience Key Technologies: Java/Spring Boot, React/TypeScript and React ...

Role: Principal Platform Engineer Location: London, United Kingdom (Hybrid - Minimum 1 Day Per Week in Office) Employment Type: Full-time Salary: £97,480 - £121,850 + 20% Flexible Benefits Package Are you an experienced Principal Engineer with a passion for building and operating large-scale distributed … simply consumed managed services-and is looking to take ownership of technical direction while remaining hands-on with engineering delivery. If you're a Principal Engineer who thrives on solving complex platform and infrastructure challenges, we'd love to hear from you. Reasonable Adjustments: Respect and equality ...

Role: Principal Platform Engineer Location: London, United Kingdom (Hybrid - Minimum 1 Day Per Week in Office) Employment Type: Full-time Salary: £97,480 - £121,850 + 20% Flexible Benefits Package Are you an experienced Principal Engineer with a passion for building and operating large-scale distributed … simply consumed managed services-and is looking to take ownership of technical direction while remaining hands-on with engineering delivery. If you're a Principal Engineer who thrives on solving complex platform and infrastructure challenges, we'd love to hear from you. Reasonable Adjustments: Respect and equality ...

Senior/Principal Highways & Infrastructure Design Engineer - Development Infrastructure Are you a Senior or Principal Engineer with strong development infrastructure experience? Do you have the technical ability and ambition to help build a new team? A rapidly growing and lively transportation consultancy , with offices across … establish a new London development infrastructure team , delivering detailed highways and drainage design packages for developer clients. They are looking for a Senior or Principal Highways & Infrastructure Design Engineer to become the first engineer in the new team, with the opportunity to help shape its growth, mentor ...

Principal Engineer, Private Markets Technology Trusted by institutions, governments, foundations and individuals worldwide, Macquarie Asset Management manages more than A$700 billion in assets under management across infrastructure, real estate, credit, equities and multi-asset strategies. As one of the world's largest and most experienced real assets … feel supported as you make your own kind of impact for a better future. What role will you play? We're looking for a Principal Engineer/Senior Technical Lead to play a leading technical role across our global Real Assets and Real Estate technology estate. ...

Principal Terraform Cloud Engineer London About the Role: As a CBRE Systems Engineer Principal —AI & CLoud Engineer, you will be an embedded technical expert within the Cloud Engineering & FinOps team, working alongside fellow FinOps engineers to build, maintain, and continuously improve the data … that expertise directly to FinOps problems — building the pipelines, models, and analytical tools that the team depends on every day. This role is a principal-level individual contributor. You are a highly skilled practitioner who goes deep on the most technically complex problems: designing high-quality data pipelines, developing ...

Summary: JOB DESCRIPTION –Principal Engineer I, Prepurchase Platform Location:London, UK Division:TicketmasterUK Limited LineManager:VP Engineering, Accounts, Identity and Pre-Purchase Contract Terms:Full-time permanent, 40h/per week THE TEAM The Prepurchase Platform group owns the backend services that power every fan's path … calls during peakon-sales. Our engineers build systems that must be fast, resilient, and available when it matters most. THE JOB As a Principal Engineer on the Prepurchase Platform team, you will write code, build systems, and solve hard problems hands-on. This is a systems thinking role ...

understanding their needs, and translating them into effective outcomes. The Role: This is an exciting opportunity to join our Software Engineering Practice as a Principal Engineer, specialising in Java. As a Principal Engineer, you'll be at the forefront of driving innovation, leading technical teams … project management skills. Agile methodologies A passion for innovation and problem-solving. Excellent communication and collaboration skills. Substantial experience as a hands-on Java Engineer Ability to advocate Java/Coding principles, practices and philosophy Ability to communicate your design, both verbally and in written form Ability to work ...

seeking a Principal Engineer (Platform Architecture) to help lead the design and evolution of our market-leading analytics platform, shaping technical direction while solving complex, real-world problems at scale. About us Founded in 2014, Cassini is the established, core utility provider of analytics and optimization tools … developer productivity Required Qualifications & Experience University degree in a STEM subject from a reputable institution Proven experience in a senior technical role such as Principal Engineer, Technical Architect, or equivalent position working with complex analytical system design Track record of owning, shaping and governing architecture across multiple teams ...

their careers and progress in the direction they choose. The Role: This is an exciting opportunity to join our Software Engineering Practice as a Principal Engineer, specialising in Java. As a Principal Engineer, you'll be at the forefront of driving innovation, leading technical teams … project management skills. Agile methodologies A passion for innovation and problem-solving. Excellent communication and collaboration skills. Substantial experience as a hands-on Java Engineer Ability to advocate Java/Coding principles, practices and philosophy Ability to communicate your design, both verbally and in written form Ability to work ...

their careers and progress in the direction they choose. The Role: This is an exciting opportunity to join our Software Engineering Practice as a Principal Engineer, specialising in Java. As a Principal Engineer, you'll be at the forefront of driving innovation, leading technical teams … project management skills. Agile methodologies A passion for innovation and problem-solving. Excellent communication and collaboration skills. Substantial experience as a hands-on Java Engineer Ability to advocate Java/Coding principles, practices and philosophy Ability to communicate your design, both verbally and in written form Ability to work ...

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 ...

number one travel ally. (Ambitious? Yes, but, hey, that's what got us here). Now, we’re on the lookout for a Principal Engineer - Identity & Privacy to help us bring that vision to even more travellers. About the role(Hybrid) As our Principal Engineer ...

Principal Backend Engineer | London | Hybrid We’re working with an exciting high-growth FinTech looking for a Principal Backend Engineer to lead the technical evolution of their backend platform. This is a deeply technical, hands-on role for someone who enjoys making difficult architectural decisions, setting … across scalability, security and maintainability Use AI-assisted and agentic engineering tools to improve development, testing and technical workflows What we're looking for Principal/Staff-level backend engineering experience Deep experience with NestJS, Node.js and TypeScript Strong AWS and Docker experience Experience designing high-scale backend ...

Principal Software Engineer - Simple Machines Hybrid · Full-time · London, UK About Simple Machines Simple Machines is a leading independent boutique technology firm with a global footprint across London, Poland, Sydney and New Zealand. We operate at the intersection of data, AI, machine learning, data engineering, and software engineering … better understand their organisations, customers, and citizens. Our teams design and build large-scale data platforms, intelligent systems, and high-impact software products. We engineer data to lifeTM. The Role As a Principal Software Engineer , you’ll play a key role in delivering complex, scalable systems ...

seeking a highly skilled and motivated Principal Technical Engineer with deep experience in Kubernetes and the CNCF landscape to join our growing team In this role you will be a key contributor to the design, implementation and maintenance of our Kubernetes infrastructure, ensuring its scalability, reliability and security … hands‐on role with significant opportunities to impact our technical strategy and influence the direction of our platform We are looking for a Principal Engineer with experience of building cloud platforms and leading software engineering teams that support critical applications at scale in cloud Lead the design, implementation ...