Available for opportunities

Hi, I'm Arun

Passionate about building scalable cloud infrastructure, AI solutions, and IoT platforms.

View My Work Get In Touch

📅

10+

Years Experience

☁️

Cloud Platforms

🚀

2700+

IoT Devices Migrated

About Me

Hello! I'm Arun, Lead Platform Engineer at Freeosk Inc, based in Chicago, IL. With over a decade of experience in cloud infrastructure and platform engineering, I specialize in building and scaling AWS-native solutions that power modern applications.

My journey includes leading zero-downtime migrations, managing 2,700+ IoT devices nationwide, and modernizing observability platforms. I've worked with companies like CME Group and Northwestern Mutual, building CI/CD pipelines and managing large-scale cloud environments.

When I'm not architecting cloud solutions, you'll find me exploring new AWS services, optimizing infrastructure costs, or contributing to the DevOps community.

My Journey

💰 $250K-300K annual savings ⚡ 50% SLA improvement 📉 Lower infra costs

Lead Platform Engineer

Freeosk Inc

📍 Chicago, IL • 2021 – Present

Led zero-downtime migration of all production workloads from on-prem to AWS
Migrated 2,700+ IoT devices nationwide from Kore Wireless to Soracom
Modernized observability platform, migrating from New Relic to Datadog
Built AI-powered portfolio with Bedrock RAG, serverless calendar assistant, and MCP server for infrastructure automation

🚀 Large-scale AWS ⚙️ CI/CD automation

Systems Engineer

CME Group

📍 Chicago, IL • 2017 – 2021

Built and maintained CI/CD pipelines using Jenkins, Ansible, Docker, and Chef
Managed large-scale AWS environments using CloudFormation and AWS CLI

☁️ Early AWS adoption

Infrastructure Engineer

Northwestern Mutual

📍 Milwaukee, WI • 2015 – 2016

Supported enterprise Linux, virtualization, storage, and automation platforms
Contributed to AWS proof-of-concepts supporting early cloud adoption

Skills & Expertise

☁️ Cloud Platforms

AWS Terraform CloudFormation Lambda ECS

🔧 DevOps Tools

Docker Jenkins Ansible Chef Git

📊 Monitoring

Datadog CloudWatch New Relic Prometheus

🤖 AI Projects

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AI-Powered Portfolio Chat

AWS Bedrock • Knowledge Base • Lambda • Nova Micro • RAG

Built this interactive chat assistant using Amazon Bedrock Knowledge Base with RAG (Retrieval Augmented Generation). Semantic search with Titan Embeddings retrieves top 10 relevant chunks from vectorized resume, uses top 5 for context generation with Nova Micro.

✓ Vector embeddings & semantic search ✓ Sub-second responses ✓ Cost: ~$0.001/query

📅

Calendar AI Assistant

Bedrock Nova Micro • WebSocket • EventBridge • Google Calendar API

Serverless AI calendar assistant with real-time WebSocket notifications and conversational AI chat. Auto-syncs Google Calendar every 30 minutes, sends proactive reminders, and uses Bedrock for natural language queries.

✓ Real-time WebSocket notifications ✓ AI-powered calendar queries ✓ Completely free to run

🚀

MCP Server for Fargate Deployments

Model Context Protocol • Python • AWS SDK • ECS Fargate

Built custom MCP server enabling AI assistants to deploy and manage Fargate apps through natural language. Implements tools for listing apps, creating deployment PRs, building Docker images, and monitoring ECS services.

✓ Natural language deployments ✓ GitOps PR automation ✓ ECR image builds

🤖

Self-Hosted LLM RAG Assistant

Ollama • Chroma Vector DB • Sentence Transformers • Streamlit

Built fully self-hosted AI knowledge assistant on AWS EC2. Runs local 7B quantized LLM with Ollama, implements RAG pipeline with embeddings and Chroma vector database, ingests Markdown knowledge base from S3.

✓ No external API calls ✓ CPU-optimized (no GPU) ✓ Citation support