18 of 18 Principal Software Engineer Jobs in London

Title: Principal Software Engineer (Portsmouth)Location: Portsmouth, Hampshire, South East, UKCompany: Sirius Analysis LimitedPrincipal Software EngineerSalary: Negotiableplus benefits, pension (7% contribution), 25 days holiday & life insuranceWe are looking for principal software engineers with diverse experience.We are a small but rapidly growing consultancy, owned highly … looking for candidates with a mix of technical expertise and interpersonal skills, able to work independently and in small teams.The Role:As a Principal Software Engineer, you will play a major role in leading and developing software engineering in the Software Modelling and Simulation, autonomy ...

Title: Principal Software Engineer (Edinburgh)Location: Edinburgh, Midlothian, Scotland, UKCompany: Bright Purple Resourcing Principal Software Engineer Edinburgh An innovative and well-established med tech company are seeking a proven technical leader to join its R&D team basedin central Edinburgh as a Principal Software Engineer. This is a unique opportunity to play a key role in the development of next-generation patient monitoring and connectivity solutions that make a real difference in clinical environments. What is in it for you: Competitive salary Flexible working 25 days annual leave - which increase ...

Principal Software Engineer - Backend 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 … 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 - Backend 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 ...

Title: Principal Software Engineer (Newcastle Upon Tyne)Location: Newcastle Upon Tyne, Tyne and Wear, North East, NE1 5JE, UKCompany: TPXImpact Holdings PlcAbout The RoleDeadline for applications: 11:59pm on 31st October 2025Were looking for a Principal Software Engineer to shape the technical direction … 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.ResponsibilitiesLead the design and development of advanced software solutions, ensuring high standards of quality, security and scalability.Set the technical ...

Title: Principal Software Engineer EV Charging (Bicester)Location: Bicester, Oxfordshire, South East, UKCompany: Gerrell & HardLead Software Engineer IoT & Full-StackLocation: Hybrid/BicesterType: PermanentSalary: Competitive, market-basedTUAL Technology is an innovative, VC-backed start-up based in Bicester, developing PowerUp a high-power EV charging … short. Working with enterprise customers across Europe, TUAL is transforming the productivity and profitability of electric commercial vehicle fleets through a portfolio of intelligent, software-defined, cloud and IoT-enabled charging solutions.The RoleWere looking for a hands-on Lead Software Engineer to own the design and delivery ...

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 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. ...

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 ...

looking for a senior Front End Software Engineer who can be the technical go-to person in their area, offering guidance, mentorship, and hands-on expertise. You will be a proven senior who still loves to code, enjoys taking ownership of front-end decisions, and wants to play … practices and setting high technical standards. Working closely with product managers, QA, designers, and other engineers, taking on and integrating feedback. Delivering fully tested software iteratively and continuously. Creating beautiful, usable, user friendly solutions. Scoping projects, identifying opportunities, and delivering effective solutions. Prototyping new ideas and pushing boundaries ...

future. Be part of the future of investing. Shape it with us. What You'll Be Doing Building and deploying scalable, secure, and compliant software at pace. Integrating HL web and mobile apps with existing and new systems to deliver a seamless client experience across a range of products … value. Championing a culture of continuous learning, cross-functional collaboration, and inclusivity with a growth mindset. About You 8-10 years of experience in software engineering , with a strong track record of delivering complex, user-facing applications in regulated, large-scale environments , ideally within Investment, Asset, or Wealth Management ...

enable our partner teams across Sky and Comcast deliver customer-led sophisticated insights and analytics. What you'll do Design, build, test and maintain software to help integrate and orchestrate the movement of data between critical Data components. Deliver observable, reliable and secure software, adopting you build … mentality, and focus on automation. Take an active role in story definition, assisting business collaborators with acceptance criteria. Work with Principal Engineers and Architects to share and supply to the broader technical vision. Support and mentor less experienced members of the team. What you'll bring Track record ...

enable our partner teams across Sky and Comcast deliver customer-led sophisticated insights and analytics. What you'll do Design, build, test and maintain software to help integrate and orchestrate the movement of data between critical Data components. Deliver observable, reliable and secure software, adopting you build … mentality, and focus on automation. Take an active role in story definition, assisting business collaborators with acceptance criteria. Work with Principal Engineers and Architects to share and supply to the broader technical vision. Support and mentor less experienced members of the team. What you'll bring Track record ...

enable our partner teams across Sky and Comcast deliver customer-led sophisticated insights and analytics. What you'll do Design, build, test and maintain software to help integrate and orchestrate the movement of data between critical Data components. Deliver observable, reliable and secure software, adopting you build … mentality, and focus on automation. Take an active role in story definition, assisting business collaborators with acceptance criteria. Work with Principal Engineers and Architects to share and supply to the broader technical vision. Support and mentor less experienced members of the team. What you'll bring Track record ...

enable our partner teams across Sky and Comcast deliver customer-led sophisticated insights and analytics. What you'll do Design, build, test and maintain software to help integrate and orchestrate the movement of data between critical Data components. Deliver observable, reliable and secure software, adopting you build … mentality, and focus on automation. Take an active role in story definition, assisting business collaborators with acceptance criteria. Work with Principal Engineers and Architects to share and supply to the broader technical vision. Support and mentor less experienced members of the team. What you'll bring Track record ...

enable our partner teams across Sky and Comcast deliver customer-led sophisticated insights and analytics. What you'll do Design, build, test and maintain software to help integrate and orchestrate the movement of data between critical Data components. Deliver observable, reliable and secure software, adopting you build … mentality, and focus on automation. Take an active role in story definition, assisting business collaborators with acceptance criteria. Work with Principal Engineers and Architects to share and supply to the broader technical vision. Support and mentor less experienced members of the team. What you'll bring Track record ...

enable our partner teams across Sky and Comcast deliver customer-led sophisticated insights and analytics. What you'll do Design, build, test and maintain software to help integrate and orchestrate the movement of data between critical Data components. Deliver observable, reliable and secure software, adopting you build … mentality, and focus on automation. Take an active role in story definition, assisting business collaborators with acceptance criteria. Work with Principal Engineers and Architects to share and supply to the broader technical vision. Support and mentor less experienced members of the team. What you'll bring Track record ...