Arunkumar Kesavan

MLOps & AI Platform Engineer

AI PLATFORM ENGINEERING
MLOps • LLMOps • GenAI
Chennai, Tamil Nadu, India +91-9443862476 arunkumar.rk7@gmail.com LinkedIn Portfolio GitHub

Professional Summary

I’m an AI Platform and MLOps Engineer who has grown from a strong DevOps and infrastructure foundation into building production-ready AI and ML platforms. My approach is bottom-up: infrastructure → cloud-native platforms → MLOps → LLMOps → production AI systems. This foundation helps me design AI platforms that are not only intelligent, but also scalable, reliable, observable, secure, and operationally efficient. Currently, I work on enterprise AI platform engineering, building and operating production-grade systems for Generative AI, agentic workflows, RAG, ML pipelines, and cloud-native infrastructure. My experience includes designing enterprise AI platforms, multi-agent architectures, Graph RAG systems, hybrid retrieval pipelines, data workflows, Kubernetes platforms, distributed storage, event-driven systems, and production observability. Earlier in my career, I focused on DevOps, AWS infrastructure, application deployment, databases, automation, security, and cloud platform operations. This progression from infrastructure engineering to AI platform engineering gives me a practical understanding of the complete lifecycle—from provisioning infrastructure and deploying workloads to operating ML and GenAI systems in production. I’m particularly interested in building the engineering foundations that enable AI teams to move from experimentation to reliable production systems, with an emphasis on platform engineering, MLOps, LLMOps, automation, scalability, observability, and AI infrastructure.

Core areas of expertise: AI Platform Engineering | MLOps | LLMOps | GenAI | Agentic AI | RAG | Graph RAG | Kubernetes | Cloud Infrastructure | ML Pipelines | Distributed Systems | Platform Engineering | Observability | Automation

I enjoy solving complex infrastructure and platform challenges and turning them into reliable, scalable systems that enable teams to build and operate AI applications efficiently.

Technical Skills

GenAI & LLMOps

Graph RAG, LangGraph, Multi-Agent Systems, Pinecone, Neo4j, Elasticsearch, Hybrid Retrieval, HyDE, Cross Encoder Reranking, Prompt Engineering

MLOps & Data

MLflow, Airflow, Kafka, Celery, Redis, Snowflake, ETL Pipelines

Cloud Native

Kubernetes, MicroK8s, Docker, Terraform, AWS EC2, S3, RDS, IAM, Jenkins, NGINX

Engineering

Python, FastAPI, Flask, PostgreSQL, MySQL, OpenTelemetry, Prometheus, Grafana

Professional Experience

Sr. Engineer - AI Platform Engineering / MLOps

Creative Engineering

  • Designed and developed the Enterprise Compliance & Risk Intelligence Platform (ECRIP), an agentic AI platform built on distributed services.
  • Built stateful multi-agent orchestration using LangGraph with 6 specialist AI agents and human approval workflows.
  • Implemented a hybrid RAG pipeline combining dense retrieval, BM25 search, Reciprocal Rank Fusion (RRF), and cross-encoder reranking.
  • Developed a Neo4j-based Graph RAG engine supporting multi-hop enterprise reasoning and knowledge retrieval.
  • Implemented event-driven data and ML pipelines using Kafka and Airflow with KEDA-based autoscaling for Kubernetes workloads.
  • Managed air-gapped Kubernetes environments using MicroK8s and Rook-Ceph for distributed storage.
  • Implemented production observability using Datadog and the Grafana LGTM stack for monitoring, logging, tracing, and alerting.

Engineer - DevOps / Infrastructure Analyst

HTC Global Services INC

  • Supported cloud-native infrastructure and applications for a Financial Data Analytics and Insights Platform.
  • Productionized enterprise applications through automated deployment and infrastructure workflows.
  • Developed an MVP for ML-based fraud detection in online insurance claims, recognized among the Top 10 ideas at the AIML Ideathon 2023.
  • Built deployment automation pipelines that reduced application deployment time by 30%.

AWS DevOps Support Engineer

NB Media Tech Pvt Ltd

  • Managed AWS-hosted applications across EC2, Lightsail, and CloudFront environments.
  • Performed MySQL and PostgreSQL database optimization and performance tuning.
  • Implemented HTTPS termination, AWS IAM policies, and JWT-based security middleware.

Featured Projects

ML Systems Study Assistant - Hybrid RAG & Evaluation

Python | RAG | Hybrid Retrieval | BM25 | Sentence Transformers | Flask

  • Built a Retrieval-Augmented Generation (RAG) study assistant for Machine Learning Systems content, implementing an end-to-end pipeline from document ingestion and processing to retrieval, generation, and evaluation.
  • Implemented hybrid retrieval combining semantic similarity and BM25 keyword search with weighted score fusion to improve retrieval relevance across technical textbook content.
  • Developed retrieval evaluation using Hit Rate and Mean Reciprocal Rank (MRR), achieving approximately 83% Hit Rate and 0.69 MRR on the project retrieval benchmark.
  • Implemented LLM-as-a-Judge evaluation for assessing generated answer relevance and designed REST API, CLI, logging, and monitoring foundations for production-oriented LLM applications.

Enterprise GenAI Compliance Intelligence Platform

LangGraph | Graph RAG | Pinecone | Neo4j | Kubernetes

  • Designed an enterprise RegTech AI platform for automated compliance management, regulatory gap analysis, and enterprise risk intelligence.
  • Engineered a typed compliance knowledge graph enabling multi-hop reasoning across regulations, obligations, controls, assets, and risks using Neo4j Graph RAG architecture.
  • Built a hybrid retrieval pipeline combining dense vector search (Pinecone) and sparse keyword retrieval (Elasticsearch BM25), achieving 91% retrieval precision through Reciprocal Rank Fusion and Cross-Encoder reranking.
  • Developed a 6-agent stateful orchestration framework using LangGraph with human-in-the-loop approval gates and adaptive instruction codebooks to improve reliability and reduce LLM hallucinations.

Cloud-Native Financial Data Engineering & Analytics Platform

Django | PostgreSQL | Snowflake | React.js | Power BI

  • Developed a financial analytics platform integrating data from APIs, CSV sources, and enterprise databases for centralized reporting and decision intelligence.
  • Implemented data cleaning, transformation, statistical analysis, and trend forecasting workflows for financial performance analysis.
  • Designed application architecture using React.js frontend, Django backend services, PostgreSQL transactional storage, and Snowflake analytical warehouse infrastructure.
  • Integrated Power BI dashboards and reporting workflows to provide interactive business intelligence and operational visibility.

Containerized Enterprise Compliance Automation Platform

Docker | Flask | Angular | MySQL | AWS S3

  • Built a regulatory compliance management platform supporting automated compliance checks, regulatory tracking, reporting, and alerts.
  • Implemented document management workflows with AWS S3 storage for secure compliance document ingestion and categorization.
  • Developed containerized application architecture using Angular frontend, Flask backend services, and MySQL database operations.
  • Standardized deployment environments using Docker-based packaging for consistent application delivery.

Enterprise Financial Operations Platform

React.js | Django | PostgreSQL | AWS

  • Developed a centralized accounting platform managing client profiles, financial transactions, reporting workflows, and audit records.
  • Implemented compliance-focused audit trails tracking transaction and client data modifications to support governance requirements including GDPR and SOX.
  • Designed full-stack architecture using React.js frontend, Django backend APIs, PostgreSQL database services, and AWS-hosted deployment infrastructure.

Education

B.E. Computer Science & Engineering 60%
Higher Secondary Education (Class XII) 77%
Secondary School Leaving Certificate (Class X) 77%

Certifications

  • 100 Hours Industrial Training Program on Cyber Security & Ethical Hacking -- NIELIT (2024)
  • Completed Azure & Power Platform Training -- HTC (2023)
  • Ranked #7 in the Top 10 Ideas -- Ideathon, HTC (2023)
  • Tosca AS1 & AS2 Certification -- Tricentis (2022)
  • Python Fundamentals Certification -- Great Learning (2021)