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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Lead Software Engineer - **Company:** Hackajob Ltd - **Location:** London, UK - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Java (Programming Language), Artificial Intelligence, BigQuery, Mobile Application Software, Python (Programming Language), Open Source Technology, Pair Programming, Recommender Systems, Software Deployment, Software Engineering, TypeScript, Web Services, Rust (Programming Language), Google Cloud, Large Language Models, Kubernetes, Golang, Programming Languages - **Published:** August 21, 2026 - **Apply:** https://www.totaljobs.com/job/lead-software-engineer/hackajob-ltd-job107752353 ## About the Role * Proven ability to lead people from a technical and cultural perspective * You have proven experience in building scalable and high-performance applications, employing cutting edge algorithms, software design and technologies to do so. * You enjoy collaborating with other engineers through pair programming. * Observability * Web services, REST, HTTP * Containers, cloud * Testing, reliability, monitoring * Strong knowledge in building and owning application end-to-end, from inception to maintenance, to retirement * Designing systems that scale * Expertise in some of our main programming languages - TypeScript, Java, Golang, Rust, Python Desirable: * You have extensive experience coding in Go and Java. * You are someone who can identify repetitive processes and transform them into automated solutions using LLMs, or build custom tools and integrations through code to unlock new efficiencies and opportunities. * You have experience applying systems thinking to solve complex business and technical problems * You have experience deploying applications in Kubernetes through Google Cloud. * You are comfortable using BigQuery to analyse data to help identify areas of opportunity within the team. * You have knowledge and understanding of the travel sector. ## Description Technology at loveholidays underpins our vision to become the global leader in packaged holidays. We drive cutting-edge innovation and technical excellence to futureproof the business. Our systems process trillions of daily holiday offers, we deploy over a thousand times a month, serving thousands of requests per second. This is where you can accelerate your growth by solving complex challenges and broadening your skillset. Join us to create impact for our future in an exciting new chapter, owning your success and contributing to shared goals. We actively talk about technology and adhere to our key technology principles that have guided us this far. We are growing and have ambitious plans to expand across Europe, employing the best minds and technology to let us do this. The impact you'll have: Lead Software Engineers at loveholidays will contribute to and develop expertise in: * Supplier integration systems that process vast amounts of data * Industry leading bespoke, high performance search and recommendation systems * Sophisticated real time pricing systems * ML-backed marketing optimisation systems * Complex domain modelling and implementation of booking payment, fulfilment and management systems * AI-powered solutions to assist customers pre and post booking * Best in class, modern user experience through web and mobile applications For a better understanding of our work, refer to some of our blog posts. Or our open source contributions: * github.com/loveholidays/ripley * github.com/loveholidays/phrasebook * github.com/loveholidays/po-test As part of our tech culture we continuously improve our time to delivery, reducing errors and generally leaving things better than you found them. Your day-to-day: * Adoption of our engineering principles * Building and running services at scale in the cloud * Collaborating with engineers, designers, product managers within and outside of the team * Providing technical leadership and guidance * Understanding the wider context of the business and designing system architectures that meet short and long term business goals * Mentoring and growing your team ## Related Videos - [Data Science in Retail](https://www.wearedevelopers.com/videos/586-data-science-in-retail) - [Go with the Flow: Stop the Leaks Before Your Memory's a Waterfall!](https://www.wearedevelopers.com/videos/100073-go-with-the-flow-stop-the-leaks-before-your-memory-s-a-waterfall) - [Understanding Kubernetes in a visual way](https://www.wearedevelopers.com/videos/100085-understanding-kubernetes-in-a-visual-way) - [Your next 10x engineer isn't in your city. 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