1 to 25 of 30 Principal Software Engineer Jobs in London

Principal Software Engineer | Payments | Credit Card Product 💵 £120,000-150,000 Base + Bonus + Package 📍 Remote (UK based) or Hybrid working - Fantastic Central London Offices 💻 Profitable FinTech scale-up 🔨 0-1 Product build in the Credit Card space ⭐⭐⭐⭐⭐ Exceptional Glassdoor We're partnered with a profitable … small businesses across Europe with their cash flow, inventory and financing. They combine a modern, data and customer driven to product development combined with software engineering best practices. They're one of the UK’s standout tech employers in the fintech space. Project Overview & Role Purpose The team ...

Principal Software Engineer | Payments | Credit Card Product 💵 £120,000-150,000 Base + Bonus + Package 📍 Remote (UK based) or Hybrid working - Fantastic Central London Offices 💻 Profitable FinTech scale-up 🔨 0-1 Product build in the Credit Card space ⭐⭐⭐⭐⭐ Exceptional Glassdoor We're partnered with a profitable … small businesses across Europe with their cash flow, inventory and financing. They combine a modern, data and customer driven to product development combined with software engineering best practices. They're one of the UK’s standout tech employers in the fintech space. Project Overview & Role Purpose The team ...

Principal (Director) Software Engineer - Python, Typescript, React, AWS - Elite funded Fintech **this role will come with a competitive salary, benefits and equity as my client is looking to 10x in the next 5 years** A leading fintech scale-up is hiring a Principal (Director) Software Engineer to join its high-performing engineering organisation in London. This is an opportunity to contribute to a platform designed to improve finance globally — with real impact at scale. Why join? They are a series C funded fintech who have just raised over £350 million, x3revenues over ...

Principal (Director) Software Engineer - Python, Typescript, React, AWS - Elite funded Fintech **this role will come with a competitive salary, benefits and equity as my client is looking to 10x in the next 5 years** A leading fintech scale-up is hiring a Principal (Director) Software Engineer to join its high-performing engineering organisation in London. This is an opportunity to contribute to a platform designed to improve finance globally — with real impact at scale. Why join? They are a series C funded fintech who have just raised over £350 million, x3revenues over ...

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: 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 Fully Remote | Permanent | Competitive Salary + Benefits Harrington Starr has partnered with a leading Global Payments Technology company who are seeking to hire a Principal Software Engineer to join their senior engineering leadership team. This is a rare opportunity to combine … performance systems at global scale. Career progression in a fast-growing international technology business. Key skills required: 10+ years' experience in enterprise architecture and software engineering. Proven expertise in .NET with strong SaaS and API platform experience. Hands-on track record designing highly scalable, high-performance systems. Strong leadership ...

Principal Software Engineer | Front End (React) | London, Hybrid Our client is a forward-thinking global firm redefining the future of finance through technology. They are looking for a Principal React Engineer who can set the technical direction for the front-end, champion best practices … without ego. Curious, always learning, and keen to improve both the codebase and the way the team works. If you are interested in this Principal Software Engineering Role, please respond to this advert directly with your updated CV or email it to chantelle.smith@sourcegroupinternational.com ...

Principal Software Engineer | Front End (React) | London, Hybrid Our client is a forward-thinking global firm redefining the future of finance through technology. They are looking for a Principal React Engineer who can set the technical direction for the front-end, champion best practices … without ego. Curious, always learning, and keen to improve both the codebase and the way the team works. If you are interested in this Principal Software Engineering Role , please respond to this advert directly with your updated CV or email it to chantelle.smith@sourcegroupinternational.com ...

Principal Software Engineer - Python - Fully Remote Experienced Python Engineer needed for an early-stage Start-Up that is already profitable and looking to expand the founding team. You will be looking to work for a Start-Up and be trusted to take responsibility on the development. … Looking for a world class Python Engineer, with experience with Typescript and ideally DevOps to play a crucial role. About you: 5+ years of professional Software Engineering Experience with proficiency in Python Professional experience with TypeScript Product focussed - worked closely with product during the development cycle, translating product ...

Principal Software Engineer - Python - Fully Remote Experienced Python Engineer needed for an early-stage Start-Up that is already profitable and looking to expand the founding team. You will be looking to work for a Start-Up and be trusted to take responsibility on the development. … Looking for a world class Python Engineer , with experience with Typescript and ideally DevOps to play a crucial role. About you: 5+ years of professional Software Engineering Experience with proficiency in Python Professional experience with TypeScript Product focussed - worked closely with product during the development cycle, translating product ...

Principal Software Engineer - Python - Fully Remote Experienced Python Engineer needed for an early-stage Start-Up that is already profitable and looking to expand the founding team. You will be looking to work for a Start-Up and be trusted to take responsibility on the development. … Looking for a world class Python Engineer , with experience with Typescript and ideally DevOps to play a crucial role. About you: 5+ years of professional Software Engineering Experience with proficiency in Python Professional experience with TypeScript Product focussed - worked closely with product during the development cycle, translating product ...

Principal Software Engineer - Python - Fully Remote Experienced Python Engineer needed for an early-stage Start-Up that is already profitable and looking to expand the founding team. You will be looking to work for a Start-Up and be trusted to take responsibility on the development. … Looking for a world class Python Engineer , with experience with Typescript and ideally DevOps to play a crucial role. About you: 5+ years of professional Software Engineering Experience with proficiency in Python Professional experience with TypeScript Product focussed - worked closely with product during the development cycle, translating product ...

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 (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 ...

their business, improve their operations and risk profile, and accelerate their organizational performance to seize the most attractive opportunities. Oliver Wyman is seeking a Principal Software Engineer (Cloud) to join our Retail Solutions team in the UK, with London or Newcastle being our preferred office locations … approaches, unlocks our ability to innovate and build new products and functionality, ultimately increasing our value proposition. We are looking for an experienced Engineer to join our Application-Enablement team , serving as the bridge between our SaaS product engineering and our Platform teams. This team leads some ...

their business, improve their operations and risk profile, and accelerate their organizational performance to seize the most attractive opportunities. Oliver Wyman is seeking a Principal Software Engineer (Cloud) to join our Retail Solutions team in the UK, with London or Newcastle being our preferred office locations … approaches, unlocks our ability to innovate and build new products and functionality, ultimately increasing our value proposition. We are looking for an experienced Engineer to join our Application-Enablement team , serving as the bridge between our SaaS product engineering and our Platform teams. This team leads some ...

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 … 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 ...

About The Role 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 a difference to users and organisations. We believe great … 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. ...

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 ...

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 ...

Join OCI's Edge Security team as a Principal Engineer to architect and deliver cloud-scale DDoS protection. You'll lead design for high-performance detection and mitigation systems, drive automation and operational excellence, and set the technical direction for customer-facing DDoS capabilities across OCI's global ...

Join OCI's Edge Security team as a Principal Engineer to architect and deliver cloud-scale DDoS protection. You'll lead design for high-performance detection and mitigation systems, drive automation and operational excellence, and set the technical direction for customer-facing DDoS capabilities across OCI's global ...

other Contract type: Full time, permanent Sanderson Recruitment are exclusively supporting a FTSE 100 Financial Services and Insurance business in the search for a Principal Software Engineer. In this role, you will shape and deliver the technical strategy for their customer-facing digital platforms, including marketing websites, quote …/dependencies and remove impediments for squads Required Skills and Experience Extensive SaaS configuration and management experience, especially with Adobe and Informatica suites Deep software engineering expertise across modern frameworks and cloud (Azure/GCP/AWS), microservices and API design Strong delivery leadership - mentoring engineers, steering strategy ...