https://jobs.co.uk/job/senior-back-end-developer-oscar-technology--12de69ff-7608-4c87-b71c-ca93113f8720 RSS feed for Senior Back End Developer at Oscar Technology. en-gb Fri, 22 May 2026 00:10:53 GMT https://jobs.co.uk/job/senior-back-end-developer-oscar-technology--12de69ff-7608-4c87-b71c-ca93113f8720 https://jobs.co.uk/job/senior-back-end-developer-oscar-technology--12de69ff-7608-4c87-b71c-ca93113f8720 Wed, 20 May 2026 11:53:12 GMT Location: Leeds | Salary: 55000.00-55000.00 Annual | Type: Permanent | Senior Back End Developer Leeds Hybrid £55,000 - £65,000 DOEWe''re working with a growing organisation looking to hire a Senior Back End Developer to play a key role in the ongoing development of their platform and business systems.This is a hands-on position offering real ownership, where you''ll lead backend development, contribute to technical direction, and work closely with developers and stakeholders to deliver new features and improvements. You''ll be instrumental in evolving a bespoke API and supporting a platform used at scale.The Role:Lead backend development and take ownership of API architectureBuild, maintain, and improve scalable web applications and systemsDevelop new API endpoints and enhance existing functionalityCollaborate with frontend developers, stakeholders, and wider teamsMentor junior developers and support best practices across the teamIdentify and reduce technical debt, improving performance and reliabilityTech StackPHPMySQLAWSAPIs and third-party integrationsAbout YouStrong experience with PHP and MySQLBackground working on complex web applications or business systemsExperience building or maintaining APIsComfortable working with stakeholders and cross-f... Permanent