Job Description

We're looking for a Lead Full Stack Engineer to join us in London

You will join Liberty Global's AI Platform team in London, working directly with the VP Software Engineering to build and evolve the next generation platforms that power AI driven experiences across our business.

This is a hands on technical leadership role for someone who enjoys solving complex engineering challenges and influencing how platforms are designed and built. As one of the most senior engineers in the team, you will help shape architectural decisions, define engineering standards and build production software that operates securely and reliably at enterprise scale.

You will work across the full technology stack, from customer-facing experiences and APIs through to cloud infrastructure and platform services. Alongside designing and building critical capabilities, you will lead technical discussions, review engineering decisions and help ensure the solutions we create are scalable, maintainable and ready to support millions of customers across multiple markets.

This is an opportunity to have a genuine impact on a strategic AI platform while remaining close to the technology, the architecture and the code. The platform you help build will support some of Liberty Global's most important future capabilities.

What will you be doing?

• Design, build and own critical platform capabilities across frontend applications, backend services, APIs and cloud infrastructure
• Lead architecture reviews and technical design sessions, ensuring solutions are scalable, secure and maintainable
• Deliver production quality software from concept through to deployment and operational support
• Evaluate complex technical challenges and recommend solutions that balance performance, reliability, scalability and long term platform health
• Review and challenge technical designs and code produced by delivery partners, identifying risks and opportunities for improvement
• Champion engineering excellence across code quality, testing, continuous delivery, security, observability and platform reliability
• Collaborate closely with AI, Machine Learning, Product, Infrastructure and DevOps teams to deliver integrated platform capabilities and share knowledge across the engineering organisation

We tend to look for people with

• Deep expertise across full stack software engineering, including frontend technologies, backend services, APIs, databases and infrastructure as code
• Strong knowledge of distributed systems and cloud native architectures
• Experience designing and delivering complex platforms operating at enterprise scale
• Strong cloud engineering experience within AWS, Azure or GCP environments
• Experience working with Kubernetes and modern platform engineering practices
• Strong architecture review and code review capability, with the ability to provide constructive technical guidance
• Ability to translate complex architectural requirements into practical engineering solutions
• Experience working with delivery partners, vendors or systems integrators
• Strong communication and collaboration skills, with the ability to influence technical decisions across teams
• Experience building or contributing to AI and Machine Learning platforms
• Experience integrating large language models, speech technologies or multimodal AI solutions into production environments
• Familiarity with AI orchestration frameworks, intelligent workflows and emerging AI technologies
• Experience with data platforms and infrastructure that support AI workloads
• Knowledge of monitoring, observability and continuous delivery practices
• Experience within telecommunications or other large scale customer facing digital platforms

What's in it for you?

• Competitive salary and bonus, where applicable
• 25 days annual leave with the option to purchase 5 additional days
• Access to wellbeing and mental health benefits, including the Calm app, personal medical cover, critical illness cover and dental insurance
• Matched pension contribution up to 10% for UK employees
• 24 hours of paid Volunteer Time Off
• Discounted gym and wellness memberships
• Access to our car benefit scheme
• Access to our online learning platform to continue developing your career
• The opportunity to join an innovative, collaborative and highly skilled technology team

Who we are:

Join Liberty Global and Shape Tomorrow’s Connections Today!

Liberty Global is a team of experienced operators and investors across telecom, media, and tech. We create value through the strategic management of two core platforms: Liberty Telecom and Liberty Growth.

Liberty Telecom is a world leader in converged broadband, video and mobile communications, providing approximately 80 million fixed and mobile connections across Europe through leading brands, such as Virgin Media O2, VodafoneZiggo, and Telenet.

Liberty Growth invests in scalable businesses across the technology, media, sports, and infrastructure sectors, with a portfolio of around 70 companies, including ITV, Formula E, AtlasEdge, and Egg.

If you're entrepreneurial and thrive on challenges, join our high-performing team and Grow with Us. Liberty Global is an equal opportunity employer committed to creating an inclusive workplace where everyone can succeed. We welcome people from all backgrounds and encourage those who bring fresh perspectives, diverse experiences and bold ideas to apply.