26 to 46 of 46 Principal Software Engineer Jobs in London

Come join the Intuit as a Principal Software Engineer and help us power prosperity around the world. We are looking for engineers that love to take on new challenges, solve tough problems, and have deep empathy for our customers. You'll work with a small group of passionate engineers, product managers and designers. Responsibilities Drives velocity in … the architecture. Understands customer behaviors and partners with cross-functional partners to influence and drive end-to-end solutions for customer problems . Drives design and implementation of durable software solutions that will solve critical customer problems in a fast-paced environment Executes with a boundaryless mindset and contributes to solutions outside of their primary area of ownership. Knowledge … implementing them to balance short-term and long-term objectives, ensuring high availability and optimal performance of applications Passionate for continuous learning, experimenting, and applying cutting-edge technology and software paradigms to solve customer problems Team/Collaboration: Partners with other groups both inside and outside of Intuit for cross-functional design, development, and integration Works with cross-functional More ❯

We are seeking a passionate Principal Software Engineer to join us working across Fulfilment systems at M&S, where you will be a driving force behind the modernisation of critically important systems for M&S, as we scale. As a technical leader, you will be collaborating with multiple multi-functional teams to design, build, and maintain the … software that powers our fulfilment operations: order and returns management, fulfilment optimisation, stock management, in-store fulfilment and collections, supplier and carrier management. Your expertise will help us create a best-in-class engineering environment while ensuring our systems are robust and scalable. Why Digital & Tech at M&S? We're changing the way we do things, and putting More ❯

We are seeking a passionate Principal Software Engineer to join us working across Fulfilment systems at M&S, where you will be a driving force behind the modernisation of critically important systems for M&S, as we scale. As a technical leader, you will be collaborating with multiple multi-functional teams to design, build, and maintain the … software that powers our fulfilment operations: order and returns management, fulfilment optimisation, stock management, in-store fulfilment and collections, supplier and carrier management. Your expertise will help us create a best-in-class engineering environment while ensuring our systems are robust and scalable. Why Digital & Tech at M&S? We're changing the way we do things, and putting More ❯

is also focused on building innovative and cutting-edge capabilities that will drive subscriptions, engagement, and monetization across Disney's streaming and digital products. Job Summary: As a Sr Principal Software Engineer within the Identity Engineering organization, you will be responsible for: identifying or introducing best practices within the organization; setting technical, and architectural direction across the … Amazon Web Services (AWS), Terraform, and infrastructure as code (IaC) best practices. Familiarity with Databricks and Apache Airflow products. Required Education: Bachelor's degree in Computer Science, Information Systems, Software, Electrical or Electronics Engineering, or comparable field of study, and/or equivalent work experience. The hiring range for this position in Orlando, FL is $213,100 to More ❯

Ripjar specialises in the development of software and data products that help governments and organisations combat serious financial crime. Our technology is used to identify criminal activity such as money laundering and terrorist financing, and enables organisations to enforce sanctions at scale to help combat rogue entities and state actors. Team Mission Ripjar's Engineering team builds software … in KYC Solutions. We continue to innovate at pace the compliance sector, pioneering the responsible use of AI with our Digital Assistant What you'll be doing As a Principal Engineer, you'll provide technology leadership and architectural oversight to our product and platform engineering teams. As a senior technologist you'll be central to Ripjar's technical … CTO. You'll work closely with senior leaders and colleagues across the organisation, and you'll play a key role in collaborating with our customers and partners. As an engineer with breadth and depth of experience you'll be in your element designing and delivering scalable software in the cloud and on-premise, articulating software designs and More ❯

About Arondite Arondite is a defence technology company building the foundational software and AI to power the autonomous age. Our aim is to revolutionise the way organisations collaborate with sensors, robots and autonomous systems and use the data they generate. We are driven by our determination to help defend our collective democratic values and by our strong belief that … our mission and if you want to be part of a growing team of outstanding people, then we want to hear from you. Arondite is looking for an experienced software engineer with at least 5+ years' experience building and deploying product. You will drive the development of software to enable robots and autonomous systems to collaborate, process More ❯

Be a force for good in technology, join a mission focused team. Create meaningful change by leveraging your experience of software and team leadership. This is your opportunity to shape the future of healthcare and drug discovery by transforming how biological data is understood and applied. With a focus on improving diagnosis, treatment, and prevention of illness, this company … is making a tangible difference-and you could be at the forefront of that mission. As a Principal Engineer, you will play a pivotal role in driving this innovative vision forward. Joining a company with a proven track record of success, you'll have the chance to shape its future technical direction and therefore advance the understanding of … human health. You'll oversee several autonomous, cross-functional squads, fostering agile working environments and ensuring your teams deliver impactful software solutions. In this role, you'll lead collaboration across squads to tackle complex challenges, implement innovative features, and refine existing systems. Your expertise in cloud-native software development with Python, and associated frameworks/libraries, will be More ❯

strong Python and Java experience join an exciting SaaS business. This role offers technical growth, variety, and strong development opportunities. The company is a profitable, maturing technology business delivering software and AI-driven solutions for industrial sectors. In this role, you'll join an established development team in a hands-on position, leading and owning the technical roadmap and … debt, and helping scale and improve the reliability of the product's system. As a team lead, you'll mentor and provide technical guidance while working closely with the Software Engineering Manager. This role is fully office-based in London. The ideal candidate is a hands-on Software Engineer with strong experience in Java and Python, confident … on performance, efficiency, cost management, and reliability *Mentor and guide the development team while working closely with management *Fully office-based role in London The Person: *Experienced Hands-on Software Developer with strong Java and Python experience *Strong AWS cloud infrastructure and containerisation (Docker/Kubernetes) *Skilled in building and managing data ingestion and processing pipelines (Kafka/Spring More ❯

strong Python and Java experience join an exciting SaaS business. This role offers technical growth, variety, and strong development opportunities. The company is a profitable, maturing technology business delivering software and AI-driven solutions for industrial sectors. In this role, you'll join an established development team in a hands-on position, leading and owning the technical roadmap and … debt, and helping scale and improve the reliability of the product's system. As a team lead, you'll mentor and provide technical guidance while working closely with the Software Engineering Manager. This role is fully office-based in London. The ideal candidate is a hands-on Software Engineer with strong experience in Java and Python, confident … on performance, efficiency, cost management, and reliability*Mentor and guide the development team while working closely with management*Fully office-based role in London The Person: *Experienced Hands-on Software Developer with strong Java and Python experience*Strong AWS cloud infrastructure and containerisation (Docker/Kubernetes)*Skilled in building and managing data ingestion and processing pipelines (Kafka/Spring More ❯

systems with high performance that can be adopted by our core cloud services across OCI. As Oracle Cloud Infrastructure (OCI) continues its rapid expansion, we are seeking a skilled Software Engineer to join our newly established Cloud Performance Organization. This team plays a key role in addressing service inefficiencies, reducing cloud expenses, improving customer experience, and ensuring scalability. … Develop and implement improvements in shared components, libraries, and runtime configurations (e.g., Java runtime, SDKs, and images). Qualifications: 5 to 10 years distributed service engineering experience in a software development environment Development experience in a modern programming language, such as Java, C++, C# Hands-on experience designing, developing, and operating public cloud service control or data planes Hands … on experience in software performance profiling, analysis, and optimization. Deep understanding of object-oriented design and SDK development, specifically within a cloud environment Experience working closely with architects, principals, product, and program managers to deliver product features on time and with high quality. Good knowledge of data structures, algorithms, operating systems, and distributed systems fundamentals. Working familiarity with networking More ❯

Role: Our platform is experiencing explosive growth and requires ongoing architecture upgrades to handle the ever increasing complexity, all while delivering new features at a rapid pace. As a Principal Engineer you will work alongside our CTO and CPO to deliver new functionalities while making the platform more flexible and scalable. Our product is like a … the table. You'll be involved in hiring, mentoring, and nurturing a culture that's collaborative, ambitious, and laser-focused on results. Key Requirements: Minimum 7 years of solid software engineering experience. You have a track record of leading engineering teams in a startup environment, with a portfolio of successfully shipped features that are more impressive than a rare … thrived in) the fast-paced, ever-changing landscape of startups. You know how to move fast, iterate quickly, and deliver results without losing your cool-or your code. 10x Engineer: Your code isn't just good-it's artisanal. You write clean, efficient code that's as smooth as a fine-aged wine and as strong as a double More ❯

of a high-growth AI company. Wecare about our people, our clients, and our mission to make AIaccessible and impactful for businesses of all sizes. Your Mission As a Software Engineer II at Recombine, you will develop andmanage services that are integral to our AI-powered platforms. Youwill work across a wide range of technologies to build scalableand … Client-Centric Solutions: Focus on delivering robust andreliable services that enhance the performance of Recombine's AIproducts. What You'll Bring to the Team 4+ years of experience in software engineering, with a proventrack record of developing high-performance commercial softwareand scalable services. Expertise in TypeScript and Node.js ; knowledge of Python is a plus. Experience working with SQL and More ❯

This is an opportunity to work on meaningful problems no one else is solving, in a space that is evolving rapidly. The Role As a Frontend-focused Full Stack Software Engineer, you will play a key role in launching and scaling a fast-moving product team. You will help to drive the development of new features across our … future of our platform. You will join a collaborative, cross-functional team of friendly, adaptable, creative, and product-minded engineers who are passionate about building high-quality, user-centric software that delivers real impact. Your Opportunity Shape the vision and strategy of our products by contributing to the roadmap and acting as a sounding board for technical leadership. Collaborate … advocate for new systems, design patterns, and tooling; advocate for continuous improvement and best practices. Contribute to the team strategy, tooling, process, and culture. We're Looking For Proven software development experience , including building and maintaining user-facing production systems. Frontend expertise, with deep understanding of React (ideally with Next.js) and responsive UI design. Strong UI architecture skills , with More ❯

Brokerage and Equity Financing. We are responsible for building platforms to grow, scale and support our Prime Traders and clients. Functional Overview We are seeking a highly skilled Associate Software Engineer to join our Prime Technology Team in Powai. You will have the opportunity to work on diverse and challenging projects, take on early responsibility, and contribute to … technical solutions. Be part of a global team with members in Mumbai, London, and New York. Contributing to collective goals and supporting your colleagues. Take ownership of the full software development lifecycle, from initial discussions through to design, development, testing, deployment. Conduct code reviews and design reviews to ensure best practices and high standards are followed. Document discussions/… Spring Boot, relational databases/SQL, test driven development. Proactive learning mindset and the ability to take initiative in identifying and solving problems. Demonstrated interest in technology and modern software design/architecture. Preferred Skills Functional: Experience or Certification on Capital Market and specifically Prime Brokerage will be highly preferred. Technical: Java: Java 17+, Collections, Spring Boot 3, Java More ❯

This is an opportunity to work on meaningful problems no one else is solving, in a space that is evolving rapidly. The Role As a Frontend-focused Full Stack Software Engineer, you will play a key role in launching and scaling a fast-moving product team. You will help to drive the development of new features across our … future of our platform. You will join a collaborative, cross-functional team of friendly, adaptable, creative, and product-minded engineers who are passionate about building high-quality, user-centric software that delivers real impact. Shape the vision and strategy of our products by contributing to the roadmap and acting as a sounding board for technical leadership. Collaborate with product … advocate for new systems, design patterns, and tooling; advocate for continuous improvement and best practices. Contribute to the team strategy, tooling, process, and culture. We're Looking For Proven software development experience , including building and maintaining user-facing production systems. Frontend expertise, with deep understanding of React (ideally with Next.js) and responsive UI design. Strong UI architecture skills , with More ❯

Senior & Principal Software Engineers - Aerospace & Defence East London/Kent (3 days on client side - travel and accommodation expenses covered) Senior: up to £65,000 | Principal: up to £75,000 Safety-Critical Embedded Software | Defence & Aerospace Projects An industry-leading consultancy in the aerospace and defence space is building a brand-new division in the East … London/Kent region - and this is a fantastic opportunity to get in at the ground level. We're looking for Senior and Principal Software Engineers with proven experience in safety-critical embedded systems . You'll join a growing team working on a wide variety of high-impact projects across mission-critical domains. Key Requirements: Strong background … in safety-critical embedded software engineering Experience in the defence or aerospace sectors Willingness to work 3 days per week on client site UK eligibility for security clearance is a plus What's on Offer: Competitive salaries: up to £65K (Senior), £75K (Principal) Join at a pivotal stage of company growth Work on diverse, technically challenging projects Career More ❯

Senior & Principal Software Engineers - Aerospace & Defence East London/Kent (3 days on client side - travel and accommodation expenses covered) Senior: up to £65,000 | Principal: up to £75,000 Safety-Critical Embedded Software | Defence & Aerospace Projects An industry-leading consultancy in the aerospace and defence space is building a brand-new division in the East … London/Kent region - and this is a fantastic opportunity to get in at the ground level. We're looking for Senior and Principal Software Engineers with proven experience in safety-critical embedded systems . You'll join a growing team working on a wide variety of high-impact projects across mission-critical domains. Key Requirements: Strong background … in safety-critical embedded software engineering Experience in the defence or aerospace sectors Willingness to work 3 days per week on client site UK eligibility for security clearance is a plus What's on Offer: Competitive salaries: up to £65K (Senior), £75K (Principal) Join at a pivotal stage of company growth Work on diverse, technically challenging projects Career More ❯

Senior & Principal Software Engineers - Aerospace & Defence East London/Kent (3 days on client side - travel and accommodation expenses covered) Senior: up to £65,000 | Principal: up to £75,000 Safety-Critical Embedded Software | Defence & Aerospace Projects An industry-leading consultancy in the aerospace and defence space is building a brand-new division in the East … London/Kent region - and this is a fantastic opportunity to get in at the ground level. We're looking for Senior and Principal Software Engineers with proven experience in safety-critical embedded systems . You'll join a growing team working on a wide variety of high-impact projects across mission-critical domains. Key Requirements: Strong background … in safety-critical embedded software engineering Experience in the defence or aerospace sectors Willingness to work 3 days per week on client site UK eligibility for security clearance is a plus What's on Offer: Competitive salaries: up to £65K (Senior), £75K (Principal) Join at a pivotal stage of company growth Work on diverse, technically challenging projects Career More ❯

digital ecosystem. You will be championing Engineering excellence in a key area for M&S, that enables our on-line customers to find, evaluate and buy products. As the Principal Engineer for Selling Experience, you will support multiple teams in providing an engaging, simplified, transparent and inspirational digital experience that delivers the best online purchasing experience in the … source technology Support recruitment, onboarding and internal and external brand outreach activities Who you are Your skills and experience will include: Experience in implementing solutions using modern, web facing software solutions that provide the best possible experience across multiple devices Specialist in clean code and implementation of design patterns for common problems. Depth of knowledge in Information Security, you More ❯

UK , and Hamburg, Germany , work closely together to develop and maintain a wide range of navigation products, with an ambitious roadmap for future innovations. We are currently seeking a Principal SoftwareEngineer to join our Engineering Department in New Malden who thrives in collaborative, cross-functional environments and brings technical skills and human understanding - someone who excels in problem-solving … communication and teamwork. Key responsibilities of this role include: Work on full life-cycle software development. Supporting diagnosis and correction of software issues experienced in the field. Participate in AGILE-based development. Participate in code reviews and regular team meetings. Liaise with System Test regarding progress of development tasks Team leadership About You Strong analytical skills and experience … of code and design review for large projects. Long Experience of multi-threaded and distributed applications, preferably with an understanding of network protocols. Strong, proven experience in a software development environment (ideally over 8 years) Strong experience in developing Windows desktop applications in C# Experience with .NET environment Experience with Windows Forms Experience with TCP/IP & UDP protocols More ❯

transaction services, to make mobility ecological, efficient and convenient. Are you adaptable, flexible and pragmatic with a DevOps mindset? Are you able to apply good engineering processes to deliver software products of high quality and performance, even with occasionally ambiguous requirements? The ideal candidate will be a lifelong learner who enjoys solving technical problems, is curious about new technologies … pre-release and production environments running on AWS. We operate a DevOps culture and are responsible for developing, deploying, operating and monitoring our team's deliverables. As the senior engineer in the team, you will set the technical standard for the team; offering mentoring and support to your team-mates. Requirements Highly skilled and proficient coding in PHP, with … direction to your team and contributing to the wider engineering organisation. Deep technical understanding of MySQL and relational databases, particularly database performance tuning. Knowledge of best practises around Modern Software Engineering, CI/CD, DORA metrics. Experience of troubleshooting and fixing performance issues in a full-stack application; from browser to the database. Experience of software architecture and More ❯