Senior AI‑Driven Fullstack Engineer

USER EXPERIENCE RESEARCHERS PTE. LTD.; Singapore; On-site; SGD 120,000 - 180,000; Full time

Job summary

USER EXPERIENCE RESEARCHERS PTE. LTD. seeks a seasoned software engineer to embed with business units, shaping AI-enabled workflows and production-ready solutions. You’ll prototype rapidly, validate with users, and scale secure backend services using Python, FastAPI, PostgreSQL, and enterprise integrations.

You will design data pipelines, implement AI workflows, and ensure observability, governance, and risk controls while delivering high-impact business outcomes.

Qualifications

• : 5+ years of software engineering experience including ownership of production applications from ambiguous requirements through deployment and support.
• Backend Engineering: Strong proficiency in Python or another modern backend language, API design, asynchronous processing, integration patterns, testing, debugging, and system architecture.
• Database & Data Engineering: Strong experience with relational databases, preferably PostgreSQL, including data modelling and query optimization; practical knowledge of data pipelines, search, and vector retrieval is also required.
• GenAI & Agentic Systems: Hands-on experience building LLM-enabled applications, RAG solutions, tool-calling agents, or automated workflows using frameworks such as LangGraph, LangChain, LlamaIndex, n8n, or equivalent.
• Cloud & Production Delivery: Practical experience deploying and operating cloud-native applications. Familiarity with AWS and services such as Bedrock and OpenSearch is preferred, although equivalent Azure or GCP experience is acceptable.
• Stakeholder Partnership: Strong communication and facilitation skills, with the ability to work directly with non-technical users, clarify business needs, explain trade-offs, manage expectations, and drive adoption.
• Delivery Mindset: Comfortable working in ambiguous environments, learning unfamiliar business domains quickly, and balancing user value, delivery speed, security, reliability, and maintainability.

Responsibilities

• Embed with business units to understand workflows, pain points, data, constraints, and outcomes; translate into prioritised use cases, user stories, designs, and success criteria.
• Build prototypes rapidly, validate with users, and iterate; balance speed with maintainable engineering.
• Design and implement reliable AI workflows and agents using Python-based frameworks and orchestration tools.
• Develop backend services, APIs, authentication, and lightweight UIs around business use cases.
• Design data ingestion, transformation, and retrieval pipelines; integrate enterprise systems and APIs.
• Develop secure, scalable backend services and relational data models using Python, FastAPI, and PostgreSQL.
• Define evaluation datasets, test quality, latency, cost; implement tracing and monitoring; improve prompts and safeguards.
• Apply secure engineering practices, least-privilege access, data protection, and governance for responsible AI.
• Own production readiness, testing, rollout, documentation, user enablement, support, and knowledge transfer.

Skills

Python

API design

Async processing

Data pipelines

GenAI & agentic systems

Cloud & production delivery

Stakeholder partnership

Delivery mindset

Tools

LangGraph

LangChain

LlamaIndex

n8n

Bedrock

OpenSearch

AWS

Azure

GCP

Job description

USER EXPERIENCE RESEARCHERS PTE. LTD. seeks a seasoned software engineer to embed with business units, shaping AI-enabled workflows and production-ready solutions. You’ll prototype rapidly, validate with users, and scale secure backend services using Python, FastAPI, PostgreSQL, and enterprise integrations.

You will design data pipelines, implement AI workflows, and ensure observability, governance, and risk controls while delivering high-impact business outcomes.