Senior AI Engineer — Production ML & RAG Platforms

CODEX SOLUTIONS PTE. LTD.; Singapore; On-site; SGD 180,000 - 240,000; Full time

Benefits offered by this job

Public sector project exposure

Supportive team culture

Structured career development

Modern cloud tools & DevSecOps

Job summary

CODEX SOLUTIONS PTE. LTD. in Singapore seeks a senior AI/ML engineer to design, develop and optimise scalable AI/ML solutions, including LLM-based applications, Retrieval-Augmented Generation (RAG) and agentic AI for Home Team use cases on GCC cloud or on-prem.

You will work with software engineers to deploy AI products powered by AI/ML, RAG and agentic AI, handle data prep, deploy models, implement guardrails, and monitor performance while sharing knowledge across a multidisciplinary team.

Qualifications

• Postgraduate / tertiary qualification in CS, Data Science, ML or related fields.
• 6+ years software engineering and AI engineering experience, incl. 3+ years production AI deployments.
• Strong Python proficiency for production software.
• Hands-on in deploying AI/ML solutions using Docker and Kubernetes.
• Experience with LangChain/LangGraph and open models (Llama 4, GPT OSS).
• Experience with vector databases and model serving frameworks.
• Ability to communicate complex concepts to stakeholders.
• Domain knowledge of Homeland Security is a plus.

Responsibilities

• Design, develop, integrate and optimise scalable AI/ML solutions, including LLM-based applications, Retrieval-Augmented Generation (RAG), agentic AI and multimodal AI solutions.
• Handle data pre-processing, engineering and annotation for model training and development.
• Collaborate with software engineers to deploy AI products powered by AI/ML, RAG and agentic AI on Cloud Platform (GCC) or on-prem.
• Design and implement model evaluation, monitoring and optimise performance of in-house AI solutions.
• Optimise model inference performance and resource utilisation.
• Develop and deploy risk mitigation measures such as guardrails to ensure safe use of AI products.
• Work with Product Management to translate requirements into model requirements.
• Provide technical advisory and review related technical articles for decision making.
• Troubleshoot production AI issues and improve system reliability.
• Keep abreast of new AI technologies and improve HTxAI’s engineering capability.
• Share knowledge in a multi-disciplinary team.

Skills

Python production-quality software

LangChain / LangGraph

LLMs / AI frameworks

Kubernetes

Docker

REST APIs

Data preprocessing/annotation

Team collaboration

Education

Postgraduate / Tertiary qualification in Computer Science / Data Science

Tools

Docker

Kubernetes

LangChain/LangGraph

Llama 4 / GPT OSS

Job description

CODEX SOLUTIONS PTE. LTD. in Singapore seeks a senior AI/ML engineer to design, develop and optimise scalable AI/ML solutions, including LLM-based applications, Retrieval-Augmented Generation (RAG) and agentic AI for Home Team use cases on GCC cloud or on-prem.

You will work with software engineers to deploy AI products powered by AI/ML, RAG and agentic AI, handle data prep, deploy models, implement guardrails, and monitor performance while sharing knowledge across a multidisciplinary team.