1 to 25 of 130 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 ❯

Join to apply for the Principal Engineer Systems Human Factors role at TieTalent 1 day ago Be among the first 25 applicants Join to apply for the Principal Engineer Systems Human Factors role at TieTalent Get AI-powered advice on this job and more exclusive features. About About Job Title: Principal Human Factors Engineer … mindset to design systems that enhance safety, performance, and decision-making in high-stakes environments. Collaboration, integrity, and a shared commitment to national security define our culture. As a Principal Human Factors Engineer, youll play a critical role in ensuring our solutions are intuitive, resilient, and ready for the real world. Why BAE Systems? This is a place … function Job function Engineering and Information Technology Industries Technology, Information and Internet Referrals increase your chances of interviewing at TieTalent by 2x Sign in to set job alerts for Principal Engineer roles. London, England, United Kingdom 1 week ago Senior Innovation and Design Engineer, Worldwide Design and Engineering London, England, United Kingdom 1 week ago London, England 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 UI Software Engineer page is loaded Principal UI Software Engineer Apply locations London time type Full time posted on Posted 30+ Days Ago job requisition id R3747 The TP ICAP Group is a world leading provider of market infrastructure. Our purpose is to provide clients with access to global financial and commodities markets, improving price … s liquidity pools across all products, asset classes, brands and regions. It has been recognized as the OTC trading platform of the year by Risk Magazine Role Overview The Principal UI Software Engineer will provide technical leadership on TP ICAP's flagship Fusion platform. This includes the Fusion Platform UI team and setting the standards and direction of … and engineering best practices within their discipline. You will lead the design, development, and implementation of cutting-edge trading applications while driving the technical direction of the team. The Principal Engineer will be passionate about software development and keen to use their technical skills to help their development teams to be successful. They should be comfortable working in More ❯

Principal Engineer - Contract Role (6 Months) Location: UK-based Contract Type: 6-Month Day Rate Contract Start Date: ASAP Industry: Banking/Financial Services Role Summary We are seeking a highly skilled Principal Engineer to lead and challenge a high-performing engineering team within a dynamic banking environment. This role is critical in driving technical excellence … Provide hands-on technical leadership and resolve complex engineering challenges. Support delivery of strategic initiatives aligned to the bank's transformation roadmap. Essential Skills & Experience Proven experience as a Principal Engineer or Lead Engineer in banking or financial services. Strong leadership and stakeholder engagement skills, with the ability to challenge and inspire teams. Strong understanding of modern More ❯

Senior Principal Software Engineer - Email Security page is loaded Senior Principal Software Engineer - Email Security Apply locations Great Britain - London time type Full time posted on Posted 13 Days Ago job requisition id R5703 Principal/Senior Principal Software Engineer - Email Security The driving force behind our award-winning Email Security Product at … 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 … to our customers, an offer of employment will be subject to your successful completion of applicable background checks, conducted in accordance with local law. Similar Jobs (1) Senior Software Engineer - Threat Protection locations Great Britain - London time type Full time posted on Posted 30+ Days Ago We save companies the embarrassment of awkward data slip ups by disrupting cybercriminal 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 12 months Remote Active SC & NPPV3 clearance required Inside IR35 - Umbrella only Job Description Lead and mentor multiple engineering teams, fostering a culture of collaboration, innovation, and continuous improvement. Develop engineering capability through coaching, recruitment, and career development aligned with DDaT frameworks. Excellent development skills, with a depth of experience including C#, Java (Spring Boot, JPA … acceptance of changes by the Programme Manager or agent on behalf of PM during the Sprint Review. Supporting and mentoring junior staff Skills required We are looking for a Principal Engineer to join the SAS PPPT Leadership team. The ideal candidate will be able to demonstrate leadership of complex projects and stakeholder engagement. Leading Multiple Teams of Engineers More ❯

Principal Engineer 12 months Remote Active SC & NPPV3 clearance required Inside IR35 - Umbrella only Job Description Lead and mentor multiple engineering teams, fostering a culture of collaboration, innovation, and continuous improvement. Develop engineering capability through coaching, recruitment, and career development aligned with DDaT frameworks. Excellent development skills, with a depth of experience including C#, Java (Spring Boot, JPA … acceptance of changes by the Programme Manager or agent on behalf of PM during the Sprint Review. Supporting and mentoring junior staff Skills required We are looking for a Principal Engineer to join the SAS PPPT Leadership team. The ideal candidate will be able to demonstrate leadership of complex projects and stakeholder engagement. Leading Multiple Teams of Engineers 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 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 Software Engineer page is loaded Principal Software Engineer Apply locations: London Type: Full time Posted on: Posted Yesterday Job requisition id: R98993 About our Team : Elsevier is a global information analytics company that helps institutions and professionals progress science, advance healthcare, and improve performance for the benefit of humanity. We serve the research, academic, and … and innovative technologies. We support our corporate customers, R&D professionals, engineers, scientists, and marketing leaders to innovate and commercialize ideas, products, and processes. About the Role: As a Principal Software Engineer, you will participate in technical discussions to design solutions that meet product requirements, develop test-driven code, pair with team members, mentor juniors, and support existing 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 ❯

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 Development Engineer page is loaded Principal Development Engineer Apply locations United Kingdom - Greater London - London United Kingdom - Bristol time type Full time posted on Posted 30+ Days Ago job requisition id R3172 Ameresco, Inc. (NYSE:AMRC) is a leading energy solutions provider dedicated to helping customers reduce costs, enhance resilience, and decarbonize to net zero … innovative technologies and solutions Deliver other duties as required Minimum Qualifications: Minimum 2:1 engineering degree, or equivalent preferably in Mechanical, Electrical or Chemical Achieved or working towards Chartered Engineer status Minimum 7 years of experience working in energy engineering, renewables, or decarbonisation Accredited PAS 2035 Retrofit Assessor, Designer, or Coordinator qualification or ESOS Lead Assessor is advantageous Strong More ❯

Principal Systems Engineer (6 positions) page is loaded Principal Systems Engineer (6 positions) Apply locations Greenford (GBR) Weymouth (GBR) time type Full time posted on Posted 30+ Days Ago job requisition id REQ-9273 Unleash the Power of Multi-Mission Excellence: Safeguarding the Seas for the World's Navies. Step into a world where cutting-edge … Authority within a multi-disciplined team. Working across Technology Readiness Levels, building upon an existing product (including obsolescence management); supporting developers, design reviews and customer meetings. This is a Principal Systems Engineer level position suitable for someone with the following: An appreciation of designing complex products Systems design experience, with an understanding of Electronics, Mechanical and Software Experience … occasionally. There will be a two-stage interview process. The first will be a video call with the Head of Systems Engineering. The second will be with the Chief Engineer and Project Manager/Engineering Manager. The first will explore functional suitability and cover business/strategic fit and the second will focus more on suitability for this project More ❯