Tech Lead/Senior Backend Engineer

Role Title: Senior Backend Engineer / Tech Lead
Function: Engineering
Seniority Level: Mid‑Senior level
Employment Type: Full time

• Own architecture design, technology selection, and continuous evolution of core systems — high-throughput ticketing engine, virtual queue / waiting room, inventory management, onsite verification with offline fault‑tolerance, and merchant analytics dashboards
• Ensure system reliability under flash-sale traffic: capacity planning, rate limiting, graceful degradation, failover, and observability
• Lead the authoring and review of technical design documents — including system architecture, user stories with acceptance criteria, database modelling, complete API specifications with error code taxonomy, authentication flows, and caching/performance strategies — ensuring designs are thorough and actionable
• Lead technical design reviews and architecture decisions; estab...