1 to 25 of 125 Principal Engineer Jobs in London

Principal Engineer - Lead Tech Strategy for a Profitable FinTech Scale-Up Hybrid (London) or remote within the UK Up to £140,000 per annum plus stock options Python Django FastAPI AWS Rust Postgres Event-Driven Architecture Machine Learning Principal Engineer - We're working with a leading fintech scale-up 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 exceptional autonomy and influence. You'll head up the evolution of a high-impact platform responsible for … generating personalised credit offers - a core driver of the business's growth and customer experience. The Opportunity As Principal Engineer, you'll take ownership of the technical strategy and architecture for dynamic, data-driven systems that determine the financial products offered to new customers. This is a unique chance to define the future of adaptive credit systems, driving More ❯

opportunities for all. We benefit from diversity. That said, we're far from perfect - we want to be more diverse and representative. Join us and help make that happen. Principal Software Engineer - £Excellent London Principal Software Engineer Principal Software Engineer The role We're looking for a Principal Software Engineer to join … our digital product delivery function. Red Badger delivers high quality digital products using a lean delivery process and multidisciplinary, cross-functional teams. The Principal Software Engineer is a senior technical leader with deep expertise in building and operating digital products, particularly within complex client environments and multi-team projects. This role is instrumental in shaping the technical direction … of client engagements and plays a key part in delivering high-quality outcomes through strategic influence, hands-on support, and deep domain knowledge. You will collaborate closely with Principal Product and Delivery roles, as well as Technical and Delivery Leads, to ensure that technology choices align with both client goals and Red Badger's value propositions. You will engage More ❯

Senior Principal Engineer, Data Platform Press Tab to Move to Skip to Content Link WHO WE ARE WHAT WE DO WORKING AT THE BBC HOW WE HIRE EARLY CAREERS EXTEND SEARCH JOBS Language Log in to Profile BBC Employee Login Job Description CREATE JOB ALERT Job Title: Senior Principal Engineer, Data Platform Senior Principal Engineer … Head of Data Engineering Salary: £92,000-£102,000 Job Introduction The BBC is building the foundation of its enterprise-wide data capability, and we're seeking a Senior Principal Data Engineer to lead the technical vision, strategy, and execution of our data infrastructure and platform. This role is pivotal in shaping the BBC's data future-ensuring … out more about Diversity and Inclusion at the BBC, please clickhere . DISCLAIMER This job description is a written statement of the essential characteristics of the job, with its principal accountabilities, incorporating a note of the skills, knowledge and experience required for a satisfactory level of performance. This is not intended to be a complete, detailed account of all More ❯

Senior/Principal Engineer - Permanent - London Country: United Kingdom Location: Heart of London Sector: Software Engineer Salary: GBP £36,000 to £50,000 Plus Generous Benefits Job Type: Permanent Technologies: C++ 3D Maths Animation Engine Game Engine Graphics Architecture Graphics FX OpenGL Perforce Physics Dynamics Collision PS4 VR Senior/Principal Engineer - Permanent - London Senior …/Principal Engineer - Permanent - London Posted Thursday, 12 May 2016 Endeavour Recruitment has a brilliant opportunity for a Senior/Principal Developer/Support Engineer who will be pushing the capabilities of the developers that will define the future business direction. The successful candidate will liaise closely with external stakeholders, guiding them on effective techniques and More ❯

Principal Engineer Python/Data Systems Salary: £80k-£100k Permax Recruitment is working in partnership with a London based firm who are on the lookout for a Principal Engineer in London to become an integral part of the team. Working within the Digital Assets industry for a finance firm who specialise in Crypto, Blockchain and Web3. More ❯

Principal Engineer This is a remote or hybrid position within the UK. We currently don't provide visa sponsorship. We are a B2B Fintech focusing on disrupting the small business lending market. SMEs make up 99% of all UK businesses yet are traditionally underserved by big banks and financial institutions. Built from nearly a decade of experience powering … and proactive engagement. Our products are used by over 80 leading high street and challenger banks and specialist lenders. Role Description We're looking for an ambitious, product-focused Principal Engineer, someone to act as trusted technical authority within the organisation, helping guide technical direction and act as a hands-on mentor and coach for other engineers. You More ❯

Press Tab to Move to Skip to Content Link Job Title: Principal Software Engineer - Security Engineer Job Reference: Band: BAND D Salary: £80,000-£90,000k depending on relevant skills, knowledge and experience. The expected salary range for this role reflects internal benchmarking and external market insights. Contract type: Permanent role Location: This is a hybrid role … makes secure, high-velocity delivery possible. We build shared cloud platforms, developer tooling and guardrails that let hundreds of product teams ship confidently and sustainably. We're hiring a Principal Software Engineer - Security Engineer to help us embed secure-by-design thinking across the BBC. You'll work hands-on with engineering teams, applying InfoSec-led policies … security teams, enable secure engineering at scale, and support adoption of policies across delivery teams. No prep required beyond a few examples of your work. Main Responsibilities As a Principal Software Engineer - Security Engineer, you'll work hands-on with product and platform teams across the BBC to embed secure engineering practices that align with InfoSec direction More ❯

Principal Software Engineer London - Hybrid (2 days per week in the office) Up to £115,000 + 15% Bonus + Benefits Method Resourcing is thrilled to be partnering with a global leader in the travel services and benefits sector. They're looking for a Principal Software Engineer to drive innovation and drive forward greenfield functionality as … the company dives into AI. The role: As a Principal Engineer, you will take charge of a newly launched greenfield project, leading its technical development from the ground up. This is a rare opportunity to create a modern, scalable system using the latest technology. Your role will involve defining the architecture, making crucial technical decisions, and supporting multiple More ❯

Principal Software Engineer London - Hybrid (2 days per week in the office) Up to £115,000 + 15% Bonus + Benefits Method Resourcing is thrilled to be partnering with a global leader in the travel services and benefits sector. They're looking for a Principal Software Engineer to drive innovation and drive forward greenfield functionality as … the company dives into AI. The role: As a Principal Engineer, you will take charge of a newly launched greenfield project, leading its technical development from the ground up. This is a rare opportunity to create a modern, scalable system using the latest technology. Your role will involve defining the architecture, making crucial technical decisions, and supporting multiple More ❯

Principal Engineer - Offers Team Hybrid in London/Remote within the UK We're hiring a Principal Engineer Lead the evolution of our offers generating systems and associated architecture. You'll build and improve critical systems, shape iwoca's technical vision, and collaborate with cross-functional teams to deliver innovative, data-driven solutions. The company Imagine … to iwoca's future growth. Technical autonomy: Re-architect the team's code to meet an ambitious set of ever-changing challenges, though you'll need to collaborate with principal engineers in other teams to design and deliver a coherent system as the system evolves to meet our long-term goals. Conceive projects for the team to continuously improve More ❯

Principal Engineer - Repeats Team Hybrid in London/Remote within the UK We're hiring a Principal Engineer Lead the evolution of our decision-making and offers-generating systems and architecture. You'll build and improve critical systems, shape iwoca's technical vision, and collaborate with cross-functional teams to deliver innovative, data-driven solutions. The … to iwoca's future growth. Technical autonomy: Re-architect the team's code to meet an ambitious set of ever-changing challenges, though you'll need to collaborate with principal engineers in other teams to design and deliver a coherent system as the system evolves to meet our long-term goals. Conceive projects for the team to continuously improve More ❯

PRINCIPAL DATA ENGINEER LONDON £107,000 THE COMPANY This consumer-tech powerhouse brings together several market-leading ecommerce brands, serving over 10 million customers across Europe. Now in an exciting phase of growth and innovation, this company is investing heavily in its data platform-giving this role a direct impact on shaping the future of how data empowers … product, marketing, and operations at scale. THE ROLE As a Principal Data Engineer , you will play a pivotal role in designing and building a world-class, self-serve data platform. You'll be the technical owner within your team while collaborating across the wider data and ML landscape to drive architectural best practices, data quality, and scalability. Specifically … modern Driving platform-level improvements with a focus on data usability, governance, and long-term sustainability Implementing robust engineering and software best practices across the data lifecycle Collaborating with Principal ML Engineers, Product Managers, and Engineering Directors to solve high-impact business problems Championing data platform evolution from fragmented legacy systems to streamlined, scalable infrastructure SKILLS AND EXPERIENCE The More ❯

Principal Data Engineer (Python AWS) London/WFH to £120k Do you have significant experience with Python data engineering and architecture? You could be progressing your career in an impactful, hands-on Principal Data Engineer role at a hugely successful European eCommerce with a customer base of over 10 million. As a Principal Data Engineer … data governance You have experience with AWS and tools such as Snowflake You're collaborative and pragmatic with excellent communication skills What's in it for you: As a Principal Data Engineer you will earn a competitive package including: Salary to £120k Pension Life Assurance Health, dental and eye care Employee Assistance Programme Summer hours Work anywhere for … weeks a year Perks such as retail discounts, onsite gym, wellbeing resources and much more Apply now to find out more about this Principal Data Engineer opportunity. At Client Server we believe in a diverse workplace that allows people to play to their strengths and continually learn. We're an equal opportunities employer whose people come from all More ❯

Principal Infrastructure Engineer (Nutanix HCI IaC) London/WFH to £125k Do you have expertise with Nutanix HCI? You could be progressing your career in an impactful Principal Infrastructure Engineer at a global FinTech/CFD trading company that has been consistently voted as one of the UKs top employers. As a Principal Infrastructure Engineer … skills You're collaborative and pragmatic with great communication skills, you're comfortable working with other teams and business stakeholders W hat's in it for you: As a Principal Infrastructure Engineer you will earn a competitive package: Salary to £90k + Bonus Pension, Private Medical Care, Life Assurance Option to buy or sell holiday days Wellness benefits … annual budget for organising events and projects that foster an open, diverse and inclusive culture Plus a range of other perks Apply now to find out more about this Principal Infrastructure Engineer (Nutanix HCI IaC) opportunity. At Client Server we believe in a diverse workplace that allows people to play to their strengths and continually learn. We're More ❯

Principal Infrastructure Engineer (Nutanix HCI IaC) London/WFH to £125k Do you have expertise with Nutanix HCI? You could be progressing your career in an impactful Principal Infrastructure Engineer at a global FinTech/CFD trading company that has been consistently voted as one of the UKs top employers. As a Principal Infrastructure Engineer … skills You're collaborative and pragmatic with great communication skills, you're comfortable working with other teams and business stakeholders W hat's in it for you: As a Principal Infrastructure Engineer you will earn a competitive package: Salary to £90k + Bonus Pension, Private Medical Care, Life Assurance Option to buy or sell holiday days Wellness benefits … annual budget for organising events and projects that foster an open, diverse and inclusive culture Plus a range of other perks Apply now to find out more about this Principal Infrastructure Engineer (Nutanix HCI IaC) opportunity. At Client Server we believe in a diverse workplace that allows people to play to their strengths and continually learn. We're More ❯

Principal Software Engineer - Active NNPV3, SC, Java, Oracle, AWS Up to £635 per day (Inside IR35) London/Remote 6 to 12 Months My client is an instantly recognisable consultancy who require a Principal Software Engineer with Active NPPV3 and Active Security Clearance (SC), to join a business critical programme with an end client. Key Requirements … Proven experience as a Principal Software Engineer Active NPPV3 and Active Security Clearance (SC) Proven experience in migration of legacy (Java) to modern versions (EE/EJB to Spring) Migration from Oracle to PostgreSQL, and from Data Centre to Cloud (AWS) Understanding of Java Standard Edition 8, Java Enterprise Edition 5, 6 and 11 Demonstrable experience with PL More ❯

Principal Software Engineer - Active NNPV3, SC, Java, Oracle, AWS Up to £635 per day (Inside IR35) London/Remote 6 to 12 Months My client is an instantly recognisable consultancy who require a Principal Software Engineer with Active NPPV3 and Active Security Clearance (SC), to join a business critical programme with an end client. Key Requirements … Proven experience as a Principal Software Engineer Active NPPV3 and Active Security Clearance (SC) Proven experience in migration of legacy (Java) to modern versions (EE/EJB to Spring) Migration from Oracle to PostgreSQL, and from Data Centre to Cloud (AWS) Understanding of Java Standard Edition 8, Java Enterprise Edition 5, 6 and 11 Demonstrable experience with PL More ❯

Principal Systems Development Engineer, Region Services Job ID: AWS EMEA SARL (UK Branch) AWS is looking for a talented Principal Engineer with a focus on DevOps/SRE/Systems Development Engineering, to join our fast-moving, and passionate Region Services team in the UK. This role is based in London. Would you like to help … you'll be part of a world-class team in an exciting environment that has the entrepreneurial feel of a start-up. This is an opportunity to operate and engineer systems on a massive scale, where you'll be surrounded by people who are passionate about cloud computing, believe that first class service is critical to customer success, and … You will lead exploration and prioritization of operational issues and development programs, and drive automation design and scaling requirements to support AWS regions in the UK and worldwide. Our Principal Engineer will be both a technical leader and an evangelist, working with and leading cross- functional teams for broad outcomes and solving complex business and architectural problems. Your More ❯

Principal/Senior Principal Software Engineer - Email Security The driving force behind our award-winning Email Security Product at Mimecast Dive into the forefront of innovation with our Email Security engineering team. Our pioneering Email Security solution pushes on the boundaries of what's possible, leveraging the latest technologies and tooling in AWS. Why Join Our Team … with our innovative Email Security team! Our MTA process billions of emails from millions of users on thousands of servers each day!" - Hiring Manager What You'll Do? As Principal/Senior Principal Engineer, you will play a pivotal role in leading the development of our next-generation cloud-based email product. This role involves hands-on More ❯

people strong. We work as one to achieve our vision of being the world's most trusted, innovative, liquidity and data solutions specialist. Role Overview We are seeking a Principal Engineer to take on a leadership role within the Global Credit Technology team. This role requires a highly skilled hands-on engineer who is passionate about technology … team to identify and escalate risks as appropriate Guide and support team in implementation and adherence to Change Control principles Experience/Competences Proven experience as a senior/principal engineer in high-performance trading systems or similar domains. Strong proficiency in Java, C#, and/or React with a deep understanding of system architecture and distributed systems. More ❯

PRINCIPAL SOFTWARE ENGINEER CITY OF LONDON - 4/5 DAYS IN OFFICE £100,000 - £120,000 Our client, a leading investment management firm specialising in sports trading, is looking for a talented individual to join their expanding technical team. This is a unique opportunity to apply your expertise to real-world sporting events and contribute to a company … and a genuine commitment to work-life balance and flexibility. Their high team retention speaks volumes about the supportive and engaging environment they've cultivated. THE ROLE: As a Principal Software Engineer, you'll be instrumental in developing sophisticated predictive models that forecast the outcomes of sporting events. You'll be working with strong quants coming from and … ll be joining a collaborative environment where you have the opportunity to work cross-functionally and significantly impact the company's core operations. YOUR SKILLS AND EXPERIENCE: The ideal Principal Software Engineer will have: Strong mathematical and statistical expertise, ideally from a quantitative background. Proficiency in C# and the .NET platform. Experience with JavaScript front-end frameworks, such More ❯

Principal Software Engineer - Cards & Credit (Python, Java, Clojure, AWS) Up to £135,000 + bonus (15-22%) + annual equity ️ Python, Distributed Systems, High-Scale Architecture London, hybrid working (2 days/week) Leading business lending platform I'm partnered with one of the UK's most successful fin-tech scale-ups who have built a platform helping … ve recently launched a new product line which has become the company's highest-growth area, with its own dedicated leadership and road map. They're now hiring a Principal Software Engineer to become the technical lead across two core engineering teams working in the card and credit space. This is a critical hands-on IC role driving … days/week in their London office (no fixed days) Be part of a high-ownership role with real scope to shape the success of a growing product Principal Software Engineer - Cards & Credit (Python, Java, Clojure, AWS) Burns Sheehan Ltd will consider applications based only on skills and ability and will not discriminate on any grounds. More ❯

we're in the cloud deploying over a 1,000 microservices into AWS, Azure & GCP or streaming billions of messages on Kafka and building event-based solutions. As a Principal Engineer in Data & AI, you will play a pivotal role in driving engineering excellence and innovation within our dynamic and inclusive environment. You'll have the opportunity to … technologies. Overall, you will be instrumental in shaping the engineering culture, driving technical maturity, and ensuring effective and efficient delivery within Sainsbury's Tech. Who you are As a Principal Engineer within Sainsbury's Tech, you are a highly skilled and influential technology leader with a deep understanding of engineering principles and practises in the field of data More ❯

Principal Engineer - Law Firm 3 days pw in London Lead the design, architecture, and development of innovative technical solutions, with a focus on Microsoft Azure, cloud-native technologies, and microservices architecture.Act as an internal SME across complex business and technology projects, providing expert third-line support and driving resolution of critical incidents.Own and evolve our approach to disaster More ❯

Principal Data Engineer/Architect (Snowflake AWS SQL Python) London/WFH to £140k Opportunity to progress your career in an impactful Principal Data Engineer role at a growing technology company as they scale their UK presence. As a Principal Data Engineer you will lead the architecture and design of the Data Platform using … to work from home most of the time, meeting up with colleagues in the London office once or twice a week. About you: You are a highly technical Data Engineer/Architect with experience of designing data lakes, data pipelines and meta data management You have strong Snowflake and AWS data services experience You have advanced SQL and Python … and stakeholder management skills What's in it for you: Salary to £140k Impactful role at a scaling company Flexible working Apply now to find out more about this Principal Data Engineer/Architect (Snowflake AWS SQL Python) opportunity. At Client Server we believe in a diverse workplace that allows people to play to their strengths and continually More ❯