Full Stack Engineer (AI Agents)

About the role

Manus is hiring a Full Stack Engineer to build product features end to end, from the frontend to the business backend services, owning the technical decisions, implementation and rollout. The role is open to candidates with a web frontend, mobile or business backend background, provided they have real depth in one of them and are willing to grow into the others. The position is based in Beijing or Singapore.

Key responsibilities

• Own product features across web frontend, mobile apps and business backend services, from understanding requirements and designing solutions to rollout and production maintenance.
• Judge technical approaches independently, take responsibility for your own code and delivery quality, and discuss with colleagues when unsure.
• Work with product, design and other engineers to understand business and user needs and deliver features with high quality.
• Drive projects in an AI-native way: use AI tools to improve development, testing, troubleshooting and documentation, and help bring Agent and LLM capabilities into the product.
• Improve code quality, performance, stability and observability, and track down and fix production issues.

Required profile

• Several years of deep, hands-on experience in at least one of web frontend, mobile (iOS / Android) or business backend development, with a solid grasp of implementation details and technical trade-offs.
• Ability to extend into other parts of the stack and deliver complete cross-stack features independently; candidates focused on one area who want to grow into full-stack work are also welcome.
• Experience building user-facing products at a large internet company, or at an AI or internet startup.
• Ability to judge technical feasibility independently, without relying on code reviews as a safety net.
• Ability to break down and drive projects in an AI-native way, using AI tools to improve efficiency, quality and collaboration.
• Collaborate on technical work in Mandarin and communicate in English; strong communication skills and a sense of ownership.

Preferred qualifications

• Full-stack experience delivering complete features across frontend and backend (or mobile and backend).
• A strong sense for AI and Agent products, with experience building LLM applications or Agent-related features.
• Experience using production data such as logs and monitoring to find problems and drive improvements.
• Open-source projects, personal technical projects or a technical blog.

What we offer

• The chance to work with a fast-paced team turning frontier AI breakthroughs into real-world impact.
• An equity and shared success plan.
• Unlimited Manus tokens to experiment and build.