Gen AI Engineer

Alepht Pte Ltd; Singapore; On-site; SGD 120,000 - 190,000; Full time

Benefits offered by this job

Competitive salary

Medical insurance

Learning culture

Growth opportunities

Job summary

Aleph is seeking a Gen AI Engineer in Singapore to design and build production-ready AI solutions that integrate enterprise data, APIs, knowledge sources and web applications.

You will develop LLM apps, RAG pipelines, vector databases, and AI agents while ensuring robust logging, security and human-in-the-loop controls. Frontend work with React and API integration are also part of the role.

Qualifications

• Strong hands-on Python experience.
• Experience building backend APIs with FastAPI.
• Hands-on with LLMs and Generative AI.
• Experience implementing RAG architectures, including document ingestion, chunking, embeddings, retrieval and response generation.
• Experience with vector databases and semantic search.
• Experience with agentic AI, including tool calling and workflow orchestration.
• Good understanding of prompt engineering and embeddings.

Responsibilities

• Design and develop LLM and Generative AI applications using Python and modern AI frameworks.
• Build scalable REST APIs and backend services using FastAPI.
• Develop RAG pipelines using enterprise documents and structured/unstructured data.
• Design vector database solutions for semantic search and knowledge retrieval.
• Integrate and orchestrate LLMs, embeddings, APIs and enterprise data sources.
• Develop AI agents and agentic workflows with tool calling and multi-step execution.
• Build frontend components and AI-enabled user experiences using React.
• Implement logging, monitoring, traceability and human-in-the-loop controls.

Skills

Python

FastAPI

LLMs/Generative AI

RAG architectures

Vector databases

Agentic AI

React frontend

REST APIs

Embeddings/semantic search

Tool calling/automation

Tools

Pinecone

Weaviate

Qdrant

Milvus

Chroma

pgvector

OpenAI API

Azure OpenAI

Anthropic API

Gemini API

Job description

Gen AI Engineer

At Aleph, the best solutions start with understanding people deeply. We're a global team of researchers, strategists, designers, and technologists who help organisations, particularly in public sector, healthcare, and regulated industries, make decisions grounded in real human needs.

We are seeking a highly skilled Gen AI Engineer with strong hands-on experience in Python, FastAPI, LLM/GenAI application development, RAG, Vector Databases and Agentic AI. You will design and build production-ready AI solutions that integrate enterprise data, APIs, knowledge sources and web applications.

Key Responsibilities

• Design and develop LLM and Generative AI applications using Python and modern AI frameworks.
• Build scalable REST APIs and backend services using FastAPI.
• Develop RAG (Retrieval-Augmented Generation) pipelines using enterprise documents and structured/unstructured data.
• Design and implement Vector Database solutions for semantic search, embeddings and knowledge retrieval.
• Integrate and orchestrate LLMs, embeddings, APIs and enterprise data sources.
• Develop AI agents and agentic workflows capable of tool calling, reasoning, task orchestration and multi-step execution.
• Build frontend components and AI-enabled user experiences using React.
• Implement prompt engineering, context management, evaluation and guardrails for LLM applications.
• Ensure AI solutions have appropriate logging, monitoring, traceability, security and human-in-the-loop controls.

Prerequisites

• Strong hands-on experience in Python.
• Strong experience building backend APIs and services using FastAPI.
• Hands-on experience developing applications using LLMs and Generative AI.
• Experience implementing RAG architectures, including document ingestion, chunking, embeddings, retrieval and response generation.
• Experience with at least one Vector Database such as Pinecone, Weaviate, Qdrant, Milvus, Chroma or pgvector.
• Experience with Agentic AI / AI agents, including tool calling, workflow orchestration and multi-step agent execution.
• Experience working with OpenAI, Azure OpenAI, Anthropic, Gemini or other LLM APIs.
• Good understanding of prompt engineering, embeddings, semantic search and LLM evaluation.
• Working experience with React or other modern frontend frameworks for integrating AI capabilities into web applications.
• Strong understanding of REST APIs, data integration and structured/unstructured data.
• Good to have ReactJS experience.

Benefits

• Competitive salary (compensation will be based on experience)
• Medical insurance
• A solid team behind you: great people who love what they do
• A culture which promotes learning and knowledge sharing
• Opportunities for personal and professional growth offerings.

Get in touch

Please visit www.aleph-labs.com or drop us an email at ***email_hidden***.

Aleph is an equal opportunity employer and we work in an engaging, collaborative environment, where ideas are shared freely.