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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Backend Engineer - UK - **Company:** Heidi - **Location:** London, UK - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Application Programming Interfaces (APIs), Artificial Intelligence, Application Performance Management, Software as a Service, Cloud Computing, Continuous Integration, Software Design Patterns, Python (Programming Language), MongoDB, Software Product Management, Queueing Systems, Redis, Systems Integration, Management of Software Versions, Data Storage Technologies, Software Security, Code Structure, Backend, Data Management, Front End Software Development, Api Design, Stream Processing, Software Version Control - **Published:** June 7, 2026 - **Apply:** https://uk.indeed.com/viewjob?jk=657f49000e148333 ## About the Role Do you have experience in SaaS?, * Strong sense of ownership & strong problem-solving skills. * 5+ years of backend development experience. * Solid experience with MongoDB and Redis for data management. * Experience building & managing message queue systems at scale. * Writing testable, effective and communicative code * Data modeling, design patterns, understanding trade-offs * Deep understanding of API design principles, including security, versioning, and performance. * Data & application security knowledge and skills * Experience in integrating with third-party systems * Competent with source code control and CI/CD pipeline technologies. * Architecting and building highly available, scalable, secure & performant systems ## Description A Senior Software Engineer responsible for the execution of the backend features, with a deep technical understanding and how it translates to representing user needs. You will have operated in a hyper growth startup with experience building SaaS products. You will also have a deep understanding of the key challenges engineers face and a firm grasp on design principles in prioritizing key features and capabilities. Your superpower is how to bridge the gap between technical specifics and business needs effortlessly and turn high-level designs into real-world solutions. You thrive in challenging situations, and you appreciate the dynamics of a flexible, flat-structured work environment. You are quick to grasp the nuances and complexities of developing an AI product healthcare internationally. We know that brilliant people can come from unlikely places; if you have a proven track record of shipping spectacular technically challenging products and features, regardless of industry, we want to meet you. What you'll do: Ultimately you will have the opportunity to work with the engineering mastermind behind Heidi developing AI products which will change the face of healthcare * Autonomously deliver beautiful & robust code with considerations on code structure design and scalability. * Implement and optimize data storage solutions. * Design, build, and maintain high-performance backend systems using Python. * Architect and manage cloud infrastructure, ensuring scalability and reliability. * Develop and manage message queue systems for real-time data processing. * Collaborate with frontend and AI teams to integrate new features and enhance existing APIs. * Optimize API performance and handle API versioning, documentation, and testing. ## Related Videos - [Developing the Backend with Stefan Lingler, CTO at Shpock](https://www.wearedevelopers.com/videos/100360-developing-the-backend-with-stefan-lingler-cto-at-shpock) - [40 Minutes to Build a Serverless COVID-19 REST and GraphQL APIs](https://www.wearedevelopers.com/videos/208-40-minutes-to-build-a-serverless-covid-19-rest-and-graphql-apis) - [Inside Bitpanda's Tech Stack: Scaling a European Fintech Leader - Markus Dorner](https://www.wearedevelopers.com/videos/1979-inside-bitpanda-s-tech-stack-scaling-a-european-fintech-leader-markus-dorner) - [Reducing LLM Calls with Vector Search Patterns - Raphael De Lio (Redis)](https://www.wearedevelopers.com/videos/1714-reducing-llm-calls-with-vector-search-patterns-raphael-de-lio-redis) - [Meet Your New BFF: Backend to Frontend without the Duct Tape](https://www.wearedevelopers.com/videos/682-meet-your-new-bff-backend-to-frontend-without-the-duct-tape) - [Accelerating Authentication Architecture: Taking Passwordless to the Next Level](https://www.wearedevelopers.com/videos/733-accelerating-authentication-architecture-taking-passwordless-to-the-next-level) ## Related Articles - [20 Essential Tools For Backend Development](https://www.wearedevelopers.com/magazine/218-20-essential-tools-for-backend-development) - [Frontend Developer Salary in The UK](https://www.wearedevelopers.com/magazine/233-frontend-developer-salary-in-the-uk) - [Fullstack Developer Salary UK](https://www.wearedevelopers.com/magazine/251-fullstack-developer-salary-uk) - [Software Engineer Salary London](https://www.wearedevelopers.com/magazine/252-software-engineer-salary-london) - [Data Engineer Salary UK](https://www.wearedevelopers.com/magazine/253-data-engineer-salary-uk) - [What’s the Difference Between Frontend and Backend Development?](https://www.wearedevelopers.com/magazine/240-what-s-the-difference-between-frontend-and-backend-development)