Our team is expanding and I need a senior-level engineer to accelerate development on a large-scale web application already in production. You’ll work across the stack every day, writing and reviewing code in JavaScript, Python and Java, with most front-end modules in TypeScript and everything deployed on AWS. You’ll be expected to • add new features and harden existing ones, • improve performance and reliability, • participate in code reviews and architecture discussions, • keep tests, CI/CD pipelines and documentation up to date. Deliverables for each sprint are simple and non-negotiable: • clean, well-tested code merged into the main branch, • concise docs for any new modules or APIs, • a short hand-over walkthrough once the sprint goal is met. All collaboration happens in our private Git repository with Slack and Jira for daily coordination. When you reply, include one or two links or brief summaries of comparable web applications you have shipped using these languages, plus your availability for the next three months so I can align sprint planning.