Backend Lead

Mô tả công việc

About Vulcan Labs

At Vulcan Labs, we build and scale AI-powered consumer products for global markets.Founded
in Vietnam in 2017, Vulcan has grown into a global consumer technology company with 200M+
downloads across a diverse portfolio of mobile and AI products. One of our flagship products,
Chat Smith, is an AI-powered productivity app that has reached 65M+ users globally, reflecting
our ability to build, scale, and compete in global markets.

 

Role Summary

We are looking for a Backend Lead to own backend engineering across all Vulcan Labs products. You will set the technical direction for our Go-based backend and AI infrastructure on GCP, lead and grow the backend team, and make sure product teams build on shared platforms instead of reinventing infrastructure. This is a hands-on leadership role: you design and review systems, unblock engineers, and still write code where it matters.

You report to the Head of Engineering and work directly with Product Owners, Design, Data, and the other Tech Leads (iOS, Android, FrontEnd, AI, QA/QC)

 

What will you do?

Technical leadership

• Own the architecture and roadmap of backend systems serving Chat Smith (our flagship product), the Mobile App Portfolio.
• Drive platform thinking: consolidate shared services (auth, billing/credits, LLM gateway, memory/context, observability) so teams ship faster with less duplication.
• Design and scale LLM-backed services: model routing, streaming, caching, rate limiting, cost control, and safety guardrails across multiple providers (Vertex AI/Gemini, OpenAI, Anthropic).
• Build the eval and observability foundation (Langfuse or equivalent) so AI features move from demo quality to production quality with measurable regressions.
• Set and enforce engineering standards: system design reviews, code review, testing, CI/CD, and incident response.
• Own reliability, security, and cost of backend workloads on GCP, including IAM hygiene, secret management, and keyless service architecture.

Team leadership

• Hire, onboard, mentor, and grow backend engineers (10-12 members); run performance and career development for the team.
• Set clear goals aligned with product outcomes (Revenue, Retention, Quality, User Experiences), not just delivery.
• Work in a shared-backlog model with PO, Engineering, and Design; translate product bets into technical plans and trade-offs.
• Build a culture of ownership, data-driven decisions, and honest technical debate aligned with Vulcan core values.