14 of 14 Principal Software Engineer Jobs in London

Principal Software Engineer

Hiring Organisation
Fruition Group
Location
City of London, London, United Kingdom
Employment Type
Permanent
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

Hiring Organisation
Fruition Group
Location
City of London, London, United Kingdom
Employment Type
Permanent
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

Hiring Organisation
Fruition Group
Location
City, London, United Kingdom
Employment Type
Permanent
Salary
GBP 100,000 Annual
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 Software Engineer - Frontend

Hiring Organisation
Fruition Group
Location
London, United Kingdom
Employment Type
Permanent
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 ...

Principal Software Engineer - Frontend

Hiring Organisation
Fruition Group
Location
London, United Kingdom
Employment Type
Permanent
Salary
GBP 100,000 Annual
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 ...

Principal Software Engineer

Hiring Organisation
TPXImpact Holdings Plc
Location
East London, London, United Kingdom
Employment Type
Permanent
Salary
£85,000
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. ...

Principal Software Engineer Rust Low Latency

Hiring Organisation
Client Server
Location
London, UK
Employment Type
Full-time
Principal Software Engineer/Developer (Rust Golang) London/WFH to £110k Are you a senior technologist with leadership skills? You could be progressing your career working on bleeding edge, Machine Learning and AI powered, audio fraud detection software used by all UK banks, the emergency ...

Principal Software Engineer

Hiring Organisation
TPXImpact Holdings Plc
Location
London, United Kingdom
Employment Type
Permanent
Salary
GBP 85,000 Annual
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 ...

Principal Software Engineer

Location
London, United Kingdom
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 ...

Principal Software Engineer

Hiring Organisation
TPXImpact Holdings PLC
Location
London, UK
Employment Type
Full-time
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 ...

Senior/Principal Full-Stack Software Engineer

Hiring Organisation
Clearly
Location
Greater London, England, United Kingdom
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. ...

Principal Software Engineer

Hiring Organisation
Noon-The Social Learning Platform
Location
London Area, United Kingdom
Subject Matter Expect for your area. Making tough technical decisions putting in balance velocity, serviceability, sustainability. Setting and holding a high bar of software engineering practices – design, coding, test. Being a mentor to members across the software engineering organisation. Participate in the team’s on-call rotation. Collaborate … years experience in backend development using Java/Spring Boot or equivalent. Experience with containerisation and orchestration technologies (Kubernetes). Deep understanding of system software, specially distributed systems. Experience designing and delivering complex systems into production, and supporting them post-production. Empowering and mentoring is important ...

Principal Software Engineer - Unified Client Experience (UCX)

Hiring Organisation
Hargreaves Lansdown
Location
London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£90,000
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 ...

Principal Software Engineer - Unified Client Experience (UCX)

Hiring Organisation
Hargreaves Lansdown
Location
London, United Kingdom
Employment Type
Permanent
Salary
GBP 90,000 Annual
About HL and the opportunity. We're building the next generation platform for one of the UK's largest financial services companies, trusted by over 2 million clients and managing c.£150 billion in assets. ...