We are seeking a Backend Engineer for a 4-month full-time remote contract in Vietnam. The role involves building integrations, webhooks, APIs, and client-facing backend workflows using TypeScript and frameworks like NestJS, Express, Hono, or Elysia. Candidates must have familiarity with Prisma, Drizzle, Zod, or tRPC. Minimum 5 years of software engineering experience is required. Remote work environment.