Design and implement components of the next-generation platform architecture. Build new services and APIs that gradually replace or extend legacy functionality. Introduce modern engineering practices, tooling, and infrastructure where appropriate. Build AI-first experiences. Maintain and support existing production systems that the business depends on. Implement targeted improvements and stability fixes while minimizing unnecessary disruption. Identify areas where modernization efforts can reduce operational risk or technical debt. Improve observability, documentation, and operational reliability of legacy components. Write high-quality, maintainable, and well-tested code. Participate in architecture discussions around system evolution and modernization strategy. Collaborate with platform, product, and infrastructure teams to deliver incremental improvements. Contribute to a culture of continuous improvement and pragmatic engineering. Use agentic development tools such as Codex, Claude Code, or similar AI coding agents.