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agsai0128/README.md

Hi, I'm Abhishek Sai πŸ‘‹

Software engineer with 6+ years architecting cloud-native, event-driven microservices on AWS that run mission-critical operations at enterprise scale. I own systems end-to-end, from ambiguous business goals to production, that prevent tens of millions in operational losses, serve 20M+ transactions daily, and cut engineering toil through automation and Gen-AI tooling. Currently a Software Engineer at Amazon, based in Seattle, WA.

  • πŸ”­ Deep expertise in distributed systems, serverless & streaming architectures, and Infrastructure as Code
  • πŸ€– Building with Gen-AI tooling : MCP servers, agentic hooks, spec-driven development, LLM ops
  • ⚑ Bias for high-leverage initiatives, operational rigor, and raising the technical bar across the team
  • πŸ“« Reach me: agsai0128@gmail.com

πŸ‘¨β€πŸ’» About Me

I specialize in tier-1, always-on systems, owning them end-to-end from architecture to production to on-call. I care about distributed systems that hold up under scale and about the kind of automation that compounds, making everyone on the team faster, not just me.

πŸŽ“ Education

University at Buffalo β€” MS, Data Science | New York, USA

Nitte University β€” BS, Electronics & Communication | Bangalore, India

🏒 Professional Experience

SWE @ Amazon | May 2022 – Present | Seattle, USA

  • Owned technical strategy for a C-Suite goal to cut outbound concessions β€” designed and shipped an event-driven defect-detection service that flags incorrect items before they leave the facility, eliminating 75% of manual inspection and preventing $45M in annual concessions
  • Designed and deployed a serverless control service for an Automated Storage and Retrieval System (Lambda, API Gateway, S3) that interfaces with warehouse hardware, cutting per-item processing time 30% and lifting order throughput 50%
  • Engineered and optimized 4 tier-1 microservices in Java & TypeScript, including a hazmat/battery compliance service preventing $100K-per-package fines and a label-rendering service processing 20M+ shipping labels daily at 25% lower latency
  • Led a team-wide initiative embedding Gen-AI tooling across 90% of the dev lifecycle β€” stood up internal MCP servers and agentic hooks (code gen, test scaffolding, PR review), cutting manual coding time 40% and accelerating delivery ~20 days per release
  • Coordinated 24/7 on-call for 50+ high-severity, region-wide incidents/year, reducing MTTR 35%

Software Engineer @ Amigo Sport | Sept 2019 – Nov 2020

  • Built a real-time player detection & tracking system (Python, YOLOv2, OpenCV) that classified video frames by player coordinates to generate formation labels, eliminating 40 hrs/week of manual labeling
  • Implemented a spatial detection model achieving a 3.5cm error rate and sub-2s latency, meeting FIFA accuracy standards for real-time officiating support
  • Developed an action-recognition & image-classification pipeline (Python, TensorFlow, OpenCV) driving $10K/month in new revenue

Systems Engineer @ Infosys | Nov 2017 – Jun 2019

  • Architected large-scale data-migration pipelines on AWS (EC2, Route 53, S3, RDS, ElastiCache, IAM, Glue), migrating 450M+ records into Oracle Flexcube with zero data loss and cutting cycle time 30%
  • Modernized Citibank's legacy banking systems onto Oracle Flexcube with RESTful APIs (ISO20022) + SAML 2.0, improving availability to 99.95% and supporting auto-scaling for 5M+ daily transactions

πŸš€ Key Projects

Event-Driven Defect Detection : Real-time service that flags mis-shipped items before they leave the facility. Event-driven architecture on AWS; prevents $45M/year in concessions.

Serverless ASRS Control Service : Elastic Lambda/API Gateway/S3 service interfacing directly with warehouse hardware; cut per-item processing time 30% and lifted throughput 50%.

Internal Gen-AI Developer Platform : MCP servers exposing codebase, docs, and CI/CD context to AI agents, plus spec-driven development and agentic hooks embedded across 90% of the dev lifecycle.

πŸ› οΈ Skills

Languages & OS

Java Python JavaScript TypeScript Node.js Linux

Cloud & Distributed Systems

AWS Lambda DynamoDB PostgreSQL Supabase

Streaming & Data Pipelines

Kafka Kinesis SQS SNS

DevOps & Testing

Docker Kubernetes Jenkins CircleCI

Gen AI

LLMs MCP Prompt Engineering

πŸ”— Connect

LinkedIn Email GitHub

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