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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Backend Engineer - PHP and Symfony - **Company:** RedTech Recruitment - **Location:** London, UK (Remote available) - **Experience:** Expert - **Salary:** £55,000.0 - £70,000.0 - **Contract:** Permanent contract - **Skills:** PHP (Programming Language), Application Programming Interfaces (APIs), Amazon Web Services, Computing Platforms, Automation of Tests, Software as a Service, Software Quality, Continuous Integration, OAuth, Symfony, Backend, Rate Limiting, Restful APIs, Terraform, Webhooks, Web Api, Microservices - **Published:** September 18, 2026 - **Apply:** https://www.adzuna.co.uk/jobs/details/5888299688 ## About the Role * Strong commercial experience developing production software using PHP * Commercial experience using Symfony * Proven experience building and maintaining multiple third-party integrations in production * Experience with REST APIs, webhooks, OAuth, rate limiting, retries, error handling and asynchronous systems * Strong production experience with AWS, including containers, monitoring and incident response * Experience with infrastructure as code, ideally Terraform * Strong understanding of automated testing, code quality and CI/CD practices * Experience independently troubleshooting integrations involving external systems and incomplete documentation * A pragmatic approach to engineering, with the ability to balance technical quality against commercial delivery requirements * Comfortable working autonomously within a small, fully remote engineering team * Confident proposing solutions and challenging technical decisions constructively * Willingness to participate in a paid weekend on-call rota -approx. once a month (you will be paid even if no calls are taken) * Based in the UK, with the right to work * Experience within payments, travel technology, marketplaces, hospitality or another integration-heavy SaaS environment would be beneficial ## Description A fantastic opportunity for a Senior Backend Engineer to join a growing, integration-focused SaaS company. Working within a small and experienced engineering team, you will build and maintain a wide range of production integrations with external software platforms. This is a highly autonomous role combining hands-on PHP and Symfony development with complex third-party API integration work and increasing ownership of the company's AWS infrastructure., * Design, build and maintain multiple third-party integrations using PHP and Symfony * Develop individual microservices connecting the platform with external APIs and webhook-based systems * Take ownership of a new family of integrations from initial design through to production * Contribute to platform and API features across the wider software estate * Investigate production issues and identify whether problems originate from the code, configuration or an external platform * Learn the existing AWS environment and progress towards significant infrastructure ownership * Improve observability, automated testing and CI/CD quality gates across the platform * Support upgrades to current versions of PHP and Symfony * Contribute informed opinions to architectural decisions as the platform continues to scale * Participate in a paid weekend on-call rota supporting urgent out-of-hours issues * Collaborate asynchronously through messaging, pull requests and focused technical discussions What this role offers: * Significant technical ownership within a growing, integration-focused SaaS business * The opportunity to influence architecture, engineering practices and the future direction of the platform * Excellent longer-term scope to take on wider technical and management responsibilities as the company grows ## 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) - [Keeping applications secure by evolving OAuth 2.0 and OpenID Connect](https://www.wearedevelopers.com/videos/100152-keeping-applications-secure-by-evolving-oauth-2-0-and-openid-connect) - [Web APIs you might not know about](https://www.wearedevelopers.com/videos/281-web-apis-you-might-not-know-about) - [Migrating half a million users to a new payment service provider](https://www.wearedevelopers.com/videos/730-migrating-half-a-million-users-to-a-new-payment-service-provider) - [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) - [Nest.js - TypeScript in the backend can also be clean](https://www.wearedevelopers.com/videos/1033-nest-js-typescript-in-the-backend-can-also-be-clean) ## Related Articles - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [The 7 Most Popular Backend Frameworks for Developers](https://www.wearedevelopers.com/magazine/403-the-7-most-popular-backend-frameworks-for-developers) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [Find a Developer Job: 12 Best Job Sites For Developers](https://www.wearedevelopers.com/magazine/165-find-a-developer-job-12-best-job-sites-for-developers) - [What’s the Difference Between Frontend and Backend Development?](https://www.wearedevelopers.com/magazine/240-what-s-the-difference-between-frontend-and-backend-development) - [Frontend Developer Salary in The UK](https://www.wearedevelopers.com/magazine/233-frontend-developer-salary-in-the-uk)