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cygnify

Full Stack Developer (AI)

Singapore
Level
Mid
Work type
On-site · Singapore

Not stated in the posting: salary, visa.

Open. First seen 2 October 2026.

About the role

Full Stack Engineer – AI

Role

We are looking for a Full Stack Engineer - AI Systems to build the product layer that turns these capabilities into usable, production-grade workflows. This includes designing how agents operate, fail, recover, and deliver consistent value to users.

Focus

  • Build end-to-end product features across frontend, backend, and AI integrations
  • Design agent workflows that handle planning, tool use, failure, and recovery across multiple steps.
  • Integrate LLMs, memory, and external tools into systems that behave reliably under real-world conditions
  • Design real-time AI interactions with streaming, partial results, and tight latency constraints
  • Improve system reliability, observability, and fallback mechanisms
  • Collaborate closely with ML, backend, and product teams to ship features end-to-end
  • Continuously iterate based on real usage and failure modes

Ideal Experiences

  • Strong experience in full stack engineering (frontend + backend)
  • Solid understanding of system design and API architecture
  • Experience working with LLMs, RAG systems, or AI-powered applications
  • Ability to handle ambiguity and make pragmatic engineering decisions
  • Strong ownership - able to take features from idea to production
  • Comfort working in fast-moving environments with evolving requirements

Outcomes

  • Own and ship AI-native product features that move beyond chat into persistent, goal-driven workflows
  • Design and deploy agent workflows that reliably complete multi-step tasks across tools and sessions
  • Reduce latency and improve responsiveness of AI interactions while maintaining output quality
  • Build robust fallback and recovery mechanisms for LLM and tool failures in production environments
  • Improve the success rate and reliability of AI-driven workflows through iteration, evaluation, and monitoring
  • Establish patterns and abstractions for integrating LLMs, memory, and external tools into scalable product systems
  • Contribute to a product experience where AI feels proactive, consistent, and dependable over time

Tech Stack

  • Next.js
  • Python
  • NodeJs
  • Pytorch
  • OpenAI / Anthropic / open-source LLMs
  • SQl & noSQL
  • Kubernetes
  • Docker

What this role asks for

Particular to this role

Docker · Kubernetes · Next.js · NoSQL · PyTorch · RAG

Rare in cygnify's other 33 open postings.

Standard for full stack roles

JavaScript · Node.js · Python · SQL

Common in full stack postings at any company.

Read against cygnify's other open postings on this site.

The team: Cygnify

This role is one of 34 open in Cygnify.

WHAT THE TEAM WORKS WITH, ACROSS ITS POSTINGS

Python (9 of 34), Agile (8 of 34), SQL (8 of 34), AWS (6 of 34), LLM (6 of 34), Machine Learning (6 of 34), Embedded Systems (5 of 34)

OTHER ROLES ON THIS TEAM

From the team and dates on cygnify's own job board.

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