Senior PHP Developer (Office-Based – Milton Keynes) We’re looking for an experienced Senior PHP Developer to join our growing SaaS team, building and scaling a high-traffic platform used by leading leisure and attractions businesses across the UK and beyond. This role is strictly office-based in Milton Keynes (hybrid considered) — collaboration, speed, and shared ownership matter to us. What you’ll be doing Building and maintaining core PHP applications in a fast-moving SaaS environment Writing and optimising complex MySQL queries for performance and scale Working closely with product, support, and client-facing teams to deliver real-world solutions Taking ownership of features from concept through to delivery What we’re looking for Strong, commercial experience with PHP Expert-level MySQL knowledge (schema design, optimisation, performance tuning) Proficient with related technologies including JavaScript, jQuery, CSS, and Bootstrap Experience integrating with third-party platforms via APIs Experience working on large, long-lived codebases Comfortable in a fast-paced environment where priorities evolve Able to work from our Milton Keynes office Nice to have Server administration experience (Linux, deployments, monitoring) Experience with legacy systems and refactoring SaaS or high-transaction systems background Experience working with booking systems or the leisure sector Salary & benefits £45,000 – £60,000, depending on experience Generous holiday allowance Private healthcare Company pension Long-term role with real product ownership and impact Location: Milton Keynes Apply via LinkedIn or message me directly