Lead Software Engineer - MongoDB / Node.js / JavaScript As a Lead Engineer, you''ll play a pivotal role in shaping the technical direction of the product. You''ll guide a talented squad of engineers, drive architectural decisions, and deliver scalable backend systems that directly impact thousands of users. This is a hands-on leadership role where you''ll balance technical excellence with mentorship, collaboration, and strategic thinking. What You''ll Be Doing Technical Leadership Set the technical direction and lead architectural decision-makingMentor and support junior and senior engineersConduct code reviews and uphold engineering best practices Backend Engineering Build and maintain scalable backend services and RESTful APIsDesign and optimise MongoDB database solutionsImprove and maintain existing backend infrastructureTroubleshoot production issues and implement robust solutions Collaboration and Delivery Work closely with cross-functional teams to deliver meaningful customer outcomesParticipate in technical interviews and help grow the engineering teamDrive improvements in processes, tooling, and development practices Core Technical Skills You''ll thrive if you have experience with: MongoDB (data modelling, indexing, aggregation, performance tuning)Node.js and the wider JavaScript/TypeScript ecosystemExpress.js and/or FastifyRESTful API designAWS or similar cloud platformsMicroservices architectureTesting frameworks (Vitest, Jest, Mocha, etc.)CI/CD pipelines and De