Principal AI/DS Platform Engineer / Architect

About the role

A remote position based in Pakistan, working US time zone, for a Principal AI/DS Platform Engineer / Architect. The role leads the architecture and design of enterprise-grade AI/ML platforms for a healthcare client, with an upcoming advanced modeling engagement. It requires 8+ years of experience and permanent employment after a 2-month probation.

Key responsibilities

• Lead end-to-end architecture and design of enterprise AI/ML platforms using AWS.
• Design and deploy scalable, secure, production-ready AI/ML infrastructure.
• Architect RAG systems, including embeddings, vector search, hybrid search and re-ranking.
• Design LLM gateways, guardrails, evaluation frameworks and prompt management.
• Build AI/ML solutions with AWS Bedrock, SageMaker, EKS, Lambda and S3.
• Design and deploy statistical, predictive and classical machine learning models, including forecasting and time-series models.
• Establish MLOps and LLMOps practices for deployment, monitoring and maintenance.
• Implement Infrastructure as Code with Terraform or AWS CDK, CI/CD pipelines, monitoring, observability and performance tracking.
• Ensure cloud security via IAM, VPC and access controls, and optimize cost and performance.
• Justify architectural trade-offs and collaborate with engineering and data science teams.

Required profile

• Minimum 8+ years of hands-on experience in AI/ML engineering, platform architecture or related roles.
• Proven experience designing production-grade AI/ML platforms.
• Availability to work US time-zone hours.

Required skills

• Strong AWS expertise (Bedrock, SageMaker, EKS, Lambda, S3, IAM, VPC).
• Generative AI, LLMs, RAG, embeddings, hybrid search and re-ranking.
• LLM evaluation, guardrails, prompt management and model governance.
• Python; Scikit-learn, XGBoost and PyTorch.
• MLOps, LLMOps, CI/CD, Terraform/CDK, observability and FinOps.