1 to 25 of 54 Principal Engineer Jobs in London

Title: Principal Systems Engineer (Portsmouth)Location: Portsmouth, Hampshire, South East, UKCompany: ManpowerRole: Principal Systems Engineer(Technical Lead)Location: Portsmouth(Predominantly onsite with occasional remote working )Duration: 6 monthsInside IR35 : UmbrellaThe Role As a Principal System Engineer, you will be leading a team of Engineers … technical support in terms of Technical Delivery PlansTechnical management of specific, delegated projectsBeing the technical point of contact for our customersEssential experience of the Principal Systems Engineer: Strong experience within Systems Engineering, Networks, IT would be preferablePrevious maritime experience would be an advantageUnderstanding of the Technical Assurance processKnowledge ...

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 ...

Title: Principal Systems Engineer (Bristol)Location: Bristol, Avon, South West, BS16 1EJ, UKCompany: Synoptix LimitedPrincipal Systems EngineerThe Role:As a Principal Systems Engineer at Synoptix you will be helping guide the scope and direction of the engineering projects you are working on. As an agile business … true sense the principal engineer will be given the relative freedom to take ownership at the strategic level of the project. This involves talking to the external stakeholders at a high level within the customer organisation and feeding back to the business within engineering management meetings etc. Internally ...

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 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 Full Stack Engineer React, Typescript, C#, .NET Core, MySQL, AWS Services (serverless) Outstanding permanent opportunity to join this global, market leading, B2B SaaS tech business as a Principal Engineer (Full Stack)/Lead Full Stack Developer with deep expertise in React, Typescript, C#, .Net Core … quality. Drive modernisation: sunset legacy code, reduce tech debt, and improve performance, reliability, and observability. Who Were Looking For: Highly experienced full stack engineer with strong proficiency in C# .NET Core and/or Node.js , plus React + TypeScript expertise. Proven experience designing event-driven, microservices architectures ...

Title: Principal Operations Support Engineer- DV Cleared (Harrogate)Location: Harrogate, North Yorkshire, Yorkshire, UKCompany: NSDPRINCIPAL OPERATIONS SUPPORT ENGINEER- DV CLEAREDPRINCIPAL OPERATIONS SUPPORT ENGINEER- Permanent opportunity for a Principal Operations Support Engineer with active DV clearance. - Salary up to £80,000 DOE - Harrogate based offices … apply, please call Laura Jackson on 02038540120, or email with an up-to-date CV.WHO ARE WE?We're hiring for an Operations Support Engineer to join a leading consultancy delivering cutting-edge solutions for industry-leading Defence clients.You'll have the opportunity to work across multiple high-impact ...

Principal Android Engineer London (Hybrid) Up to £125,000 + Benefits We’re partnering with a leading UK financial services organisation as they look to bring in a Principal Android Engineer who will help shape the next generation of their mobile customer experience. This ...

Principal Python Engineer London | Permanent | Hybrid Ncounter is supporting a global investment firm in hiring a Python Developer to help design and evolve internal compute frameworks that underpin their trading and research platforms. This is a high-impact role, working at the intersection of software engineering and distributed … offers the chance to work on complex technical challenges at scale, with direct impact on high-performance computing platforms. If youre a skilled Python engineer with distributed systems expertise and want to join a world-class engineering environment, apply today for a confidential conversation. ...

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 Python Engineer London Permanent Hybrid Ncounter is supporting a global investment firm in hiring a Python Developer to help design and evolve internal compute frameworks that underpin their trading and research platforms. This is a high-impact role, working at the intersection of software engineering and distributed ...

Title: Principal Software Engineer (Portsmouth)Location: Portsmouth, Hampshire, South East, UKCompany: Sirius Analysis LimitedPrincipal Software EngineerSalary: Negotiableplus benefits, pension (7% contribution), 25 days holiday & life insuranceWe are looking for principal software engineers with diverse experience.We are a small but rapidly growing consultancy, owned highly experienced and recognised … looking for candidates with a mix of technical expertise and interpersonal skills, able to work independently and in small teams.The Role:As a Principal Software Engineer, you will play a major role in leading and developing software engineering in the Software Modelling and Simulation, autonomy and geospatial fields ...

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 ...

Principal Software Engineer (Java) London – 1 day a week onsite 🚀 Join a FinTech Powering the Future of Payments Are you a seasoned individual contributor looking for a step up into a senior position within a high-performing team within the world of Banking/Payments? Are you passionate … like!) 🌍 Opportunity to collaborate with major global banks 🚀 Fast-paced, product-led environment where your voice matters If you're a motivated Senior/Principal/Staff Java Software Engineer ready to tackle complex challenges and deliver meaningful change, hit apply – and shape the future of payments with ...

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 . ...

Title: Principal Software Engineer (Manchester)Location: Manchester, Greater Manchester, North West, M2 1DH, UKCompany: TPXImpact Holdings PlcAbout The RoleDeadline for applications: 11:59pm on 31st October 2025Were looking for a Principal Software Engineer to shape the technical direction of high-profile projects and lead the delivery … project risks, helping teams navigate complex technical challenges.About YouProfessional knowledge and experienceEssentialExtensive experience in software engineering, with a focus on large-scale, complex systems.Polyglot engineer comfortable working across multiple languages and frameworks (weve used Python, Java, Kotlin, Node.js, C#, JavaScript, Express, React andNext.jsto name a few).Passion for learning ...

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 click apply for full ...

international organisation in the aviation sector is seeking a Principal Engineer to lead the design and delivery of enterprise-scale engineering solutions supporting AI-driven platforms. This is a senior, hands-on role embedded within a major airline environment, with responsibility for setting technical direction and ensuring solutions … Responsibilities Design and own architecture across all layers of the technology stack. Write production-grade code and deliver enterprise-ready solutions at pace. Engineer scalable, modular platforms capable of deployment across multiple operating companies. Collaborate closely with product, data engineering, data science, analytics, and frontend teams to deliver cohesive ...

international organisation in the aviation sector is seeking a Principal Engineer to lead the design and delivery of enterprise-scale engineering solutions supporting AI-driven platforms. This is a senior, hands-on role embedded within a major airline environment, with responsibility for setting technical direction and ensuring solutions … Responsibilities Design and own architecture across all layers of the technology stack. Write production-grade code and deliver enterprise-ready solutions at pace. Engineer scalable, modular platforms capable of deployment across multiple operating companies. Collaborate closely with product, data engineering, data science, analytics, and frontend teams to deliver cohesive ...

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 Python Engineer London | Permanent | Hybrid Ncounter is supporting a global investment firm in hiring a Python Developer to help design and evolve internal compute frameworks that underpin their trading and research platforms. This is a high-impact role, working at the intersection of software engineering and distributed … chance to work on complex technical challenges at scale, with direct impact on high-performance computing platforms. If you’re a skilled Python engineer with distributed systems expertise and want to join a world-class engineering environment, apply today for a confidential conversation. ...