Product Engineer

0g Labs; Hongkong; Hybrid; HKD 600,000 - 1,000,000; Full time

Benefits offered by this job

Purpose-driven work

Self-directed growth

Market-competitive compensation

Job summary

0g Labs in Hong Kong seeks a product engineer who owns outcomes across multiple products, bridging UI, APIs, server logic, infrastructure, and deployment. You will work across the 0G stack, resolve root causes with shared systems, and deliver durable solutions rather than quick fixes.

You’ll build and improve AI‑agent infrastructure, understand wallet-based identity, and manage dependencies with an eye for security and observability. A strong TS/React background and SaaS mindset are essential.

Qualifications

• Strong end-to-end TypeScript and React experience across client, server, API design, and serverless or edge runtimes.
• Experience building LLM-powered products beyond basic API calls, including streaming, tool use, prompt pipelines, or sandboxed execution.
• Comfortable with web3 application development, wallet authentication, signing, embedded and external wallets, and EVM fundamentals.
• Hands-on experience with infrastructure as code, CI/CD, containers, production observability, and behavior-driven testing.

Responsibilities

• Understand our apps and the 0G stack well enough to improve the shared platform, not only one feature.
• Solve root causes and make durable decisions using shared systems instead of band-aids.
• Own features end-to-end across UI, APIs, server logic, infrastructure, and deployment.
• Build and improve AI-agent infrastructure, including LLM streaming, tool orchestration, sandboxed execution, and security boundaries.
• Understand wallet-based identity, signing, embedded and external wallets, and server-side authorization.
• Independently manage dependencies, reviews, blockers, and delivery while raising product decisions and risks early.
• Raise the bar through meaningful tests, sharp PR reviews, and living documentation.
• Be open to adopting new technologies, AI tools, and better working practices.
• Be reliable enough that others can focus on building other products.
• Treat "done" as delivered, verified, and operating; run what you ship with logs, traces, and dashboards.

Skills

TypeScript/React

End-to-end ownership

AI tooling

Web3 wallet integration

CI/CD

Infrastructure as code

Tools

Terraform

GitHub Actions

Docker

Fly.io

Grafana

Job description

About the Role

We’re looking for a product engineer who takes ownership of outcomes, not just assigned tasks. You’ll work across 4–5 products with different technology stacks, identify high-value problems, and carry solutions through design, implementation, testing, documentation, delivery, and operation.

What You'll Do

• Understand our apps and the 0G stack well enough to improve the shared platform, not only one feature.

• Solve root causes and make durable decisions using shared systems instead of introducing band-aids or duplicated solutions.

• Own features end-to‑end across UI, APIs, server logic, infrastructure, and deployment; do not stop at the layer you are most comfortable in.

• Build and improve AI‑agent infrastructure, including LLM streaming, tool orchestration, sandboxed execution, and security boundaries around untrusted code.

• Understand wallet‑based identity, signing, embedded and external wallets, and server‑side authorization without conflating wallet connection with application access.

• Independently manage dependencies, reviews, blockers, and delivery while raising genuine product decisions and risks early.

• Raise the bar through meaningful tests, sharp PR reviews, and living documentation that stays true to the product.

• Be open to adopting new technologies, AI tools, and better working practices.

• Be reliable enough that when you own an area, the rest of the team can confidently focus on building and expanding other products.

• Treat "done" as delivered, verified, and operating—not merely coded or test‑green. Run what you ship with structured logs, traces, metrics, dashboards, alerts, first‑line technical support, optimization, and ongoing support for internal teams and external users.

Technical background:

• Strong end‑to‑end TypeScript and React experience across client, server, API design, and serverless or edge runtimes. Remix, Next.js, Vite, and Cloudflare Workers experience is valuable.

• Experience building LLM‑powered products beyond basic API calls, including streaming, tool use, prompt pipelines, agent orchestration, or sandboxed execution.

• Comfortable with web3 application development, wallet authentication, signing, embedded and external wallets, and EVM fundamentals.

• Hands‑on experience with infrastructure as code, CI/CD, containers, production observability, and behavior‑driven testing.

• Our stack includes pnpm, Terraform, GitHub Actions, Docker, Fly.io, Grafana, OpenTelemetry, Prometheus, Vitest, and Playwright.

What we offer

• Purpose: The opportunity to contribute to making AI a public good

• Growth: A self‑directed environment where you can take initiative to shape your role and career

• Compensation: Market‑competitive compensation including, for most roles, exposure to pre‑launch tokens

In addition, 0G Labs is committed to the health and well being of all of our team members. To that end, we provide reimbursements towards a holistic set of experiences and courses:

• Core self: Transcendental Meditation

• Mind: Landmark Education

• Emotion: Art of Communication

• Presence: Speech Coach

• Body: Fitness, gym and exercise memberships/classes