1 to 25 of 84 Principal Engineer Jobs in London

client, a scaling infrastructure powerhouse, is currently seeking a Principal Engineer. This innovative company is fundamentally rewriting the rules of engagement between digital and physical components in the Age of AI. Their core mission is to unleash the full potential of sophisticated systems by delivering the most scalable, secure … from development to massive-scale deployment. The Opportunity: Build What Others Run On Demand for their product is exploding, outpacing their current capacity. The Principal Engineer will be instrumental in meeting this demand, shaping the future of their platform, and growing their engineering team. The ideal candidate must ...

Principal Engineer — London | Mobile-First AI Scale-Up | Hands-On Role We’re supporting a high-growth, mobile-first technology company in London as they enter a new phase of scale. They are looking for a Principal Engineer who can combine deep technical capability with architectural ...

Title: Principal Engineer Location: London, UK Experience: 12+ Yrs Work Mode: Hybrid 3 days onsite Key Skills: AWS, Multiple programming languages We at Coforge seeking for a Principal Engineer with following skillset: Responsibilities: Design and implement enterprise-grade architectures Write production-quality code and deliver solutions ...

Title: Principal Engineer Location: London, UK Experience: 12+ Yrs Work Mode: Hybrid 3 days onsite Key Skills: AWS, Multiple programming languages We at Coforge seeking for a Principal Engineer with following skillset: Responsibilities: Design and implement enterprise-grade architectures Write production-quality code and deliver solutions ...

Title:Principal Engineer- CDN transition Job location: London Duration:6 Months Description: The Contract Principal Engineer - CDN Migration is the lead technical authority for the CDN workstream within an active programme to migrate from an existing CDN platform to a target CDN. The role is responsible ...

Principal Azure DevOps Engineer Permanent Location: UK - Remote Salary: £80,000 - £90,000 (+ benefits) Skills: Azure, DevOps, CI/CD, Terraform, PowerShell, SC Clearance We are looking to recruit an SC Cleared Principal Azure DevOps Engineer for a leading technology consultancy. You will be responsible … delivering high-quality, innovative solutions to clients across multiple sectors. The Principal Engineer drive the design, implementation, and optimization of cloud infrastructure and DevOps practices. This is a senior, hands-on role combining technical delivery, architecture, and thought leadership, ensuring secure, scalable, and resilient platforms that enable rapid ...

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 Software Engineer | Payments | Credit Card Product 💵 £120,000-150,000 Base + Bonus + Package 📍 Remote (UK based) or Hybrid working - Fantastic Central London Offices 💻 Profitable FinTech scale-up 🔨 0-1 Product build in the Credit Card space ⭐⭐⭐⭐⭐ Exceptional Glassdoor We're partnered with a profitable … practices. They're one of the UK’s standout tech employers in the fintech space. Project Overview & Role Purpose The team are hiring a Principal (or Staff) Software Engineer to drive and support the delivery of a new credit card product. Long term, the goal is to build ...

Principal Software Engineer | Payments | Credit Card Product 💵 £120,000-150,000 Base + Bonus + Package 📍 Remote (UK based) or Hybrid working - Fantastic Central London Offices 💻 Profitable FinTech scale-up 🔨 0-1 Product build in the Credit Card space ⭐⭐⭐⭐⭐ Exceptional Glassdoor We're partnered with a profitable … practices. They're one of the UK’s standout tech employers in the fintech space. Project Overview & Role Purpose The team are hiring a Principal (or Staff) Software Engineer to drive and support the delivery of a new credit card product. Long term, the goal is to build ...

Principal Software Engineer - Backend Location: Remote first (Occasional travel to London) Salary: £95,000 - £120,000 + equity + 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 … 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 Software Architect (FinTech SaaS) – UK Remote We are representing a scaling B2B FinTech that provides core decisioning infrastructure for the global financial services sector. Their enterprise SaaS technology enables major lenders to modernise their credit assessment processes, allowing for more efficient deployment of capital to the commercial sector. … data layers into traditional banking workflows, they are significantly improving how credit is optimised and distributed to businesses. We are looking for a heavyweight Principal Engineer to serve as the ultimate technical authority and strategic advisor across multiple product squads. Location: Remote-friendly (UK). The team values ...

Principal Software Engineer | Front End (React) | London, Hybrid Our client is a forward-thinking global firm redefining the future of finance through technology. They are looking for a Principal React Engineer who can set the technical direction for the front-end, champion best practices, and still … without ego. Curious, always learning, and keen to improve both the codebase and the way the team works. If you are interested in this Principal Software Engineering Role, please respond to this advert directly with your updated CV or email it to chantelle.smith@sourcegroupinternational.com ...

Principal Software Engineer | Front End (React) | London, Hybrid Our client is a forward-thinking global firm redefining the future of finance through technology. They are looking for a Principal React Engineer who can set the technical direction for the front-end, champion best practices, and still … without ego. Curious, always learning, and keen to improve both the codebase and the way the team works. If you are interested in this Principal Software Engineering Role , please respond to this advert directly with your updated CV or email it to chantelle.smith@sourcegroupinternational.com ...

Principal Azure Engineer Location: London Start Date: 5th January Clearance Required: Active SC and NPPV3 We are seeking an experienced Principal Azure Engineer to join a high-profile central government project. This is a fantastic opportunity for a seasoned professional with strong technical expertise and proven ...

Principal Software Engineer Fully Remote | Permanent | Competitive Salary + Benefits 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. This is a rare opportunity to combine hands ...

Principal Software Engineer Fully Remote | Permanent | Competitive Salary + Benefits 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. This is a rare opportunity to combine hands ...

Principal Software Engineer - Backend Location: Remote first (Occasional travel to London) Salary: £95,000 - £120,000 + equity + 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 ...

Principal Security Engineer – Cloud Platform (Remote, UK) We've partnered exclusively with a scaling infrastructure company that's fundamentally transforming how digital and physical components interact in the age of AI. Their core mission is to empower teams to build and deploy sophisticated systems by providing scalable, secure … robust infrastructure solutions for development, deployment, and scaling. They're looking for a Principal Security Engineer to lead the architecture and development of its next-generation cloud security platform. This is a high-impact, hands-on role where you’ll design and build a full Identity & Access Management ...

Title: Principal DevOps Engineer - AWS/Terraform/Kubernetes Type: Permanent Location: Fully remote (must be UK-based) Salary: £90-110K DOE Our client are growing their team and are looking for a Principal DevOps Engineer to contribute to the development and maintenance … cloud infrastructure, help with the definition of best practices for infrastructure management and to support development processes with CI/CD. As a Principal DevOps Engineer, you will play a crucial role in ensuring the reliability, scalability, and security of their cloud-based systems. Responsibilities: Design, build ...

Title: Principal DevOps Engineer - AWS/Terraform/Kubernetes Type: Permanent Location: Fully remote (must be UK-based) Salary: £90-110K DOE Our client are growing their team and are looking for a Principal DevOps Engineer to contribute to the development and maintenance … cloud infrastructure, help with the definition of best practices for infrastructure management and to support development processes with CI/CD. As a Principal DevOps Engineer, you will play a crucial role in ensuring the reliability, scalability, and security of their cloud-based systems. Responsibilities: Design, build ...

Senior/Principal Systems Engineer £45,000 - £85,000 + excellent bens Bristol, London, Manchester, Reading (Hybrid) Join us as a Senior/Principal Systems Engineering Consultant in Aerospace, Defence, Security and Technology (ADS&T). You'll lead teams that use Systems Thinking to analyse, assess … ranging from niche consultancy projects to large, high-profile programmes. So, you'll always be able to keep yourself challenged. Your Purpose: Senior/Principal Systems Engineer Provide consultancy to client project and engineering managers. Lead the use of best practice techniques and tools on client and internal ...

Opportunity - Principal Telecoms Engineer - Initial 12 Month Outside IR35 Contract Our Client has a requirement for a Principal Telecom Engineer , who will be required to work on a contract basis in Woking. Location : Central London, SW1V 1PX Contract Length: Initially 12 Months IR35 Status: Outside IR35 … detail and offer sound advice to both clients and candidates. We actively recruit at all levels and this is a superb opportunity for a Principal Telecom Engineer looking for new employment. As part of putting people first, we strive to be an equal opportunities employer ...

seeking a Principal Engineer/Engineering Manager to lead one of the core engineering teams within Planning Agent, our AI-powered advertising planning platform used daily by Omnicom agency teams. You will help shape and grow a product with AI at its core, using agents to power ...

maintain our professional, supportive and entrepreneurial working culture that we all enjoy. What You'll Do We're looking for a highly skilled Principal Engineer with a passion for data, cloud technologies, and building robust, scalable solutions - who also brings strategic product thinking and cross-functional leadership . ...

their business, improve their operations and risk profile, and accelerate their organizational performance to seize the most attractive opportunities. 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 … approaches, unlocks our ability to innovate and build new products and functionality, ultimately increasing our value proposition. We are looking for an experienced Engineer to join our Application-Enablement team , serving as the bridge between our SaaS product engineering and our Platform teams. This team leads some ...