Worked on stabilizing the HTTP/2 client in the nodejs/undici repository, focusing on backend reliability for production streaming workloads. Addressed two critical null-reference crash scenarios by implementing null-safety checks and race-condition guards, ensuring safer concurrency handling. The engineering approach involved analyzing crash reports and reinforcing the client’s event handling logic to prevent failures when streams completed or under high concurrency. Utilized JavaScript and Node.js to deliver these improvements, drawing on expertise in API development and backend systems. The result was a more robust HTTP/2 streaming experience, reducing crash risk and enhancing the reliability of undici’s H2 client for end users.