About Leo Pathu

Cloud & AI Solutions Architect

Designing secure AWS cloud platforms, production-ready AI systems, and modern software architectures.

Leo Pathu
Leo Pathu Chennai, India • Remote Worldwide Download CV

I help engineering teams, high-growth startups, and enterprises design scalable AWS cloud platforms and bridge the gap between proof-of-concept AI and production reality.

Over the past 12+ years, I have architected systems across healthcare, data analytics, B2B SaaS, and high-volume non-profit operations. My focus is on pragmatic engineering: choosing the right abstractions, preventing architecture debt before it compounds, and aligning system design strictly with business objectives.

In the cloud domain, I specialize in AWS foundations (landing zones, multi-account setups, VPC networking, security posture), container platforms (ECS/EKS), serverless architectures (Lambda, Step Functions, EventBridge), and CI/CD pipelines with automated governance.

In the applied AI space, I help organizations build production-grade generative AI applications powered by Amazon Bedrock and SageMaker. This includes retrieval-augmented generation (RAG) over private corporate knowledge, tool-calling multi-agent workflows, model evaluation harnesses, content guardrails, and embedding pipelines that remain accurate and cost-effective over time.

Security & Well-Architected

Least-privilege IAM, encrypted data at rest and in transit, private subnet isolation, and continuous compliance audits aligned with AWS Well-Architected reviews.

FinOps & Cost Discipline

Rigorous cost modeling for compute, storage, and generative AI tokens. Architecture choices optimized for ROI through right-sizing and caching.

Production-Grade AI Systems

Moving beyond fragile LLM demos to deterministic pipelines, guarded tool-calling agents, grounding verification, and observability for prompt latency and token usage.

Platform Reliability & DevOps

Zero-downtime blue/green cutovers, automated rollback mechanisms, infrastructure as code (Terraform), and full-stack OpenTelemetry and CloudWatch metrics.

SmartWhale

Intelligent campaign automation and agent workflow platform with scalable asynchronous processing.

AWS Node.js LangGraph OpenAI APIs

ISKCON Operations

Serverless receipt generation, payment reconciliation, and high-volume donor communication platform.

AWS Lambda Laravel SQS S3

Omnyk Health

OmnyTraq web platform for real-time remote patient monitoring and medical telemetry.

Laravel Firebase MySQL HIPAA-ready

ISRO I-GRASP

Research collaboration and document management portal for space research initiatives.

Drupal Linux High-Availability

Have an upcoming cloud or AI initiative?

I am available for architecture audits, strategic advisory, Well-Architected reviews, and hands-on implementation.

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