Senior-level hands-on backend engineer with team leadership experience Proven experience leading a backend team (task planning, code reviews, mentoring) Strong background in high-load or complex backend systems Ability to make technical and architectural decisions within the team Deep understanding of backend system design, scalability, and reliability Strong ownership mindset and responsibility for backend delivery Strong hands-on experience with Rust in production environments Experience developing and maintaining Solana smart contracts (programs) Hands-on experience working with Solana RPC Practical experience with on-chain data subscriptions and streaming Experience working with Geyser or similar on-chain data pipelines Confident understanding of on-chain activities and data flows Experience integrating Solana protocols (e.g. Jupiter) Experience with FastAPI, Celery, Redis, PostgreSQL, Docker, Web3.py, Solana Web3.js