AI-Driven Full Stack Developer — LLMs & Cloud

Phillip Securities Pte Ltd; Singapore; On-site; SGD 120,000 - 180,000; Full time

Job summary

Symphony Digital Assets, part of the PhillipCapital family, seeks an experienced Full Stack Developer to design, build and deploy AI-enabled web applications and APIs for a digital asset platform. You will work with LLMs, RAG, and agentic frameworks, partnering across teams to deliver scalable AI-powered features and robust backend/frontend systems.

The role emphasizes practical AI engineering, code quality, and hands-on development with tools like LangChain and LangSmith, while mentoring peers

Qualifications

• 2+ years of professional software development experience.
• Hands-on experience with LLMs, RAG architectures and agentic design patterns.
• Familiarity with building AI agents using LangChain, LlamaIndex, LangGraph, AutoGen, or CrewAI.
• Experience with MCP integrations, AI guardrails, LLM Ops practices.
• Understanding of prompt engineering, model evaluation and AI observability tools.
• Proficient in Java Spring Boot, with distributed systems experience.
• Experience with Kubernetes, CI/CD pipelines (ArgoCD, GitLab).
• Experience with AWS services (Lambda, Fargate, API Gateway, IAM).
• Experience with server-side frameworks and strong system design.
• Good communication and mentoring skills.

Responsibilities

• Design, develop and deploy end-to-end AI applications using LLMs, RAG and agentic frameworks.
• Build MCP-based tool integrations and agentic workflows to connect AI with enterprise systems.
• Translate business requirements into scalable AI-powered solutions with robust backend/frontend design.
• Develop and integrate APIs and user-facing features for AI-driven use cases.
• Implement monitoring, observability and evaluation for AI models and prompts.
• Use AI coding assistants to assist design, write, review and debug code while ensuring quality.
• Lead the design and architecture of technical solutions, mentor junior developers.
• Keep up with relevant technical and industry developments.

Skills

LLMs

RAG architectures

Agentic design patterns

Prompt engineering

LLM Ops

System architecture design

Mentoring/leadership

Tools

Java Spring Boot

Kubernetes

ArgoCD

GitLab CI/CD

AWS (Lambda, Fargate, API Gateway, IAM)

LangChain

LlamaIndex

LangGraph

AutoGen

CrewAI

LangSmith

Job description

Symphony Digital Assets, part of the PhillipCapital family, seeks an experienced Full Stack Developer to design, build and deploy AI-enabled web applications and APIs for a digital asset platform. You will work with LLMs, RAG, and agentic frameworks, partnering across teams to deliver scalable AI-powered features and robust backend/frontend systems.

The role emphasizes practical AI engineering, code quality, and hands-on development with tools like LangChain and LangSmith, while mentoring peers