Develop end to end, owning features through to production. Develop best practices and write clean, secure, readable, scalable code. Collaborate with engineers and cross-functional colleagues. Integrate and build for external and internal APIs. Develop new products and alter existing PHP code. Write and optimize SQL queries and design schemas. Create and code complex backend algorithms. Profile and optimize new and legacy code. Use CSS and Javascript to complete functionality. Ship often and fast in an agile environment. Be involved in product, marketing, and business strategy.