BackEnd Engineer (Mid-level, Good English)
Đà Nẵng
Application deadline:
30/10/2026
About This Job
Trách nhiệm chính
- Design and build scalable microservices that power high-growth startups.
- Build LLM features end to end: RAG pipelines, vector search, agent workflows, evals.
- Keep AI running well in production: latency, token cost, guardrails, monitoring.
- Ship fast with a proven process: async standups, PRDs/RFCs, code reviews, and an AI-native workflow on Cursor, Claude, and Codex.
- Keep the bar high: clean code, testing, documentation, reliability.
- Talk directly with US startup founders and product leaders. Your input shapes their product.
- Wear more than one hat. Backend first, but you’ll touch infra, data, and AI integration when the project needs it.
- Help shape Spartan’s engineering culture. We work like founders, not contractors.
Yêu cầu
- Fluent English. You’ll talk directly with US startup founders.
- 2+ years of solid backend experience in any language.
- Strong CS fundamentals: algorithms, data structures, scalability.
- Experience with testing, dependency injection, and distributed systems.
- You use AI tools like a pro: you review what they write, catch their mistakes, and know when not to use them.
- A builder’s mindset. You don’t just code, you solve problems like an owner.
Yêu cầu ưu tiên
- You’ve shipped an LLM feature to production: RAG, agents, or direct model integration.
- You’ve built with agent tooling: MCP servers, LangGraph, or the Claude Agent SDK.
- You’ve run evals on an AI feature: Ragas, Promptfoo, LangSmith, or your own harness.
- Hands-on with vector databases: pgvector, Pinecone, Qdrant, Weaviate.
- Experience with Kafka or other event streaming systems.
Mức lương
- Lương cạnh tranh, 100% lương trong thời gian thử việc.
Phúc lợi
- Unlimited PTO + public holidays
- Premium healthcare insurance + annual health check
- Sports clubs for every taste: football, badminton, billiards, pickleball
- PS5 and Nintendo at the office
- ✈️ Company trip + monthly birthday parties
- MacBook provided
- Social insurance per Labor Law
Hình thức làm việc
- Làm việc theo chế độ hybrid, linh hoạt giờ làm việc.
Thông tin khác
- Top 3 reasons to join us: Competitive salary packages, Dynamic and open-sharing working environment, Hybrid and flexible working mode.
- We’re looking for a Backend Engineer to run that race with us.