17 of 17 Principal Software Engineer Jobs in London

Principal Software Engineer Location: London - 1x a month 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 digital … with engineering leadership to define best practices, coding standards, and long-term technical strategy. Design, develop, and oversee the delivery of robust, production-grade software built using Python, Django, Cloud Firestore, BigQuery, and Elasticsearch. Mentor and guide engineers at all levels, fostering a culture of technical excellence and continuous ...

Principal Software Engineer 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 … with engineering leadership to define best practices, coding standards, and long-term technical strategy. Design, develop, and oversee the delivery of robust, production-grade software built using Python, Django, Cloud Firestore, BigQuery, and Elasticsearch. Mentor and guide engineers at all levels, fostering a culture of technical excellence and continuous ...

Principal Software Engineer Location: London - 1x a month 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 digital ...

Principal (Director) Software Engineer - Python, Typescript, React, AWS| High-growth, Purpose-Led and A* funded Fintech | Hybrid – London **this role will come with a competitive salary, benefits and equity** A leading fintech scale-up is hiring a Principal (Director) Software Engineerto join its high-performing … leading venture capital and impact investors, the organisation is entering a new phase of growth, with engineering at the core. The Opportunity As a Principal (Director) Software Engineer, you will play a key role in designing and delivering scalable, reliable systems that handle significant volumes of real ...

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 … 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 ...

Principal Software Engineer - Frontend London (Remote First - Occasional travel) Salary: £95,000 - £120,000 + equity + benefits An established, global technology business within the hospitality-tech industry is seeking a talented Principal Frontend Software Engineer to help build and scale cutting-edge digital … ensure reliable, scalable solutions. What do I need to be successful: Degree in Computer Science or equivalent hands-on experience. 7+ years in frontend software development, including experience in a lead or principal engineering capacity. Deep expertise in React, TypeScript, and modern frontend architecture (state management, component design ...

Snowflake services. It is also responsible for providing the foundation of global features like cross-region replication, data sharing, and data marketplace. AS A PRINCIPAL SOFTWARE ENGINEER - METADATA, YOU WILL: Solve real business needs at large scale by applying your software engineering and analytical problem solving … system and solve them. Ensure operational readiness of the services and meet the commitments to our customers regarding availability and performance. OUR IDEAL PRINCIPAL SOFTWARE ENGINEER WILL HAVE: 14+ years industry experience designing, building and supporting large scale systems in production. Strong computer science fundamentals including data ...

Principal Software Engineer - Frontend London (Remote First - Occasional travel) Salary: £95,000 - £120,000 + equity + benefits An established, global technology business within the hospitality-tech industry is seeking a talented Principal Frontend Software Engineer to help build and scale cutting-edge digital ...

About The Role Deadline for applications: 11:59pm on 31st October 2025 Were looking for a Principal Software Engineer to shape the technical direction of high-profile projects and lead the delivery of modern, scalable software. We use technology to create impactful, human-centred solutions that make … working closely with senior stakeholders, mentoring engineers across multiple teams, and line managing a small group of engineers while helping shape our approach to software delivery, architecture, and engineering culture. Responsibilities Lead the design and development of advanced software solutions, ensuring high standards of quality, security and scalability. ...

seeking an experienced Principal Software Engineer with a strong background in backend and cloud-based development, who has also taken on technical leadership responsibilities. This role involves leading the design and development of scalable systems, mentoring engineers, and ensuring high standards of architecture and code quality across … technical stakeholders Strong analytical and problem-solving skills Degree in Computer Science, Engineering, or equivalent experience Interest in financial services or experience in B2B software is advantageous ...

Principal Software Engineer | Python | Commodities Trading | London Our client is a global investment manager with a strong footprint across major financial centres. They manage multi-asset, commodities, and derivatives strategies for institutional and wholesale clients worldwide. The environment combines the scale and stability of an established asset … driven technology Close collaboration between trading, quant research, risk and technology teams The firm is now looking for a strong, passionate and experienced Python Engineer to join the Front Office Technology team. They are re-architecting the stack to be cloud-native on AWS , with Python at the core ...

About The Role Deadline for applications: 11:59pm on 31st October 2025 Were looking for a Principal Software Engineer to shape the technical direction of high-profile projects and lead the delivery of modern, scalable software. We use technology to create impactful, human-centred solutions that make ...

About The Role Deadline for applications: 11:59pm on 31st October 2025 Were looking for a Principal Software Engineer to shape the technical direction of high-profile projects and lead the delivery of modern, scalable software. We use technology to create impactful, human-centred solutions that make ...

About The Role Deadline for applications: 11:59pm on 31st October 2025 Were looking for a Principal Software Engineer to shape the technical direction of high-profile projects and lead the delivery of modern, scalable software. We use technology to create impactful, human-centred solutions that make ...

Python, and lead projects that span across multiple teams. What we're looking for: At least ten (10) years of experience as a software engineer, at least 2 at the Senior Staff/Principal level (L7+). Previous leadership experience in driving projects across multiple teams (50+ ...

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 … 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 ...

About the role We are looking for a Senior/Principal Full-Stack Software Engineer to join our growing team at Clearly. This is a high-impact role where you will shape the technical foundation of our platform, influence product direction, and help us scale … bring best practice into the team. What you’ll need (Requirements and experience) 5+ years of professional experience as a JavaScript/TypeScript engineer (full-stack). Experience in a leadership role is a plus. Proven experience working in an early-stage startup environment, ideally in B2B SaaS. ...