Senior / Staff Backend Engineer — Exceptional English Required

We are seeking highly experienced Senior or Staff-level Backend Engineers with "exceptional professional English communication skills". Candidates must be able to discuss complex technical concepts, architecture, and engineering decisions fluently and confidently in English. Requirements: - 12+ years of software development experience - Strong backend and distributed systems background - Experience as a Team Lead, Solution Architect, System Designer, or similar senior technical role - Experience working with international or U.S.-based engineering teams is strongly preferred - Golang, Python, C#, Microservices, Kubernetes, and Azure Strong English proficiency is a "core requirement for this role", as the position involves regular technical discussions, collaboration, and communication with international stakeholders. If your experience matches these requirements, please send me your introduction video(loom url) around 3 minutes with your resume or professional profile.