India

Ayyan Sameer Shaikh

Software Engineer Backend Systems & Distributed Infrastructure

zsh

whoami

ayyan-sameer-shaikh

cat focus.txt

backend systems · REST APIs · LLM-powered infra

git log -1 --oneline

founding engineer @ grexa-ai

SOFTWARE ENGINEERBACKEND SYSTEMSPYTHONGORUSTREST APIsLLM INFRASTRUCTUREDISTRIBUTED SYSTEMSOPEN SOURCE CONTRIBUTORSOFTWARE ENGINEERBACKEND SYSTEMSPYTHONGORUSTREST APIsLLM INFRASTRUCTUREDISTRIBUTED SYSTEMSOPEN SOURCE CONTRIBUTOR

Impact

By the numbers

2+

Years shipping production backend systems

3

Engineering teams shipped for

8

Merged PRs across public OSS projects

40%

Recurring efficiency & latency gains delivered

About

Backend-focused, systems-minded

Software Engineer with 2+ years building backend services, RESTful/internal APIs, and automation pipelines in Python — with hands-on experience integrating third-party services, optimizing data pipelines, and improving system reliability and latency. Comfortable working with containerized environments, distributed data flows, and LLM-powered systems, currently building in Go and Rust with a strong sense of ownership across globally distributed teams.

profile.json
{
  "name": "Ayyan Sameer Shaikh",
  "role": "Backend Engineer",
  "languages": ["Python","Go","Rust"],
  "location": "India",
  "open_source": true
}

Currently building in Go and Rust — shipping backend systems, APIs, and LLM-powered infrastructure that hold up under real load.

Experience

Where I've worked

Founding Engineer

Grexa AI · Mumbai, India

Jun 2025Present
  • Built and maintained RESTful API integrations and reusable backend content modules in Payload CMS, cutting manual content-update effort by 40% and improving onsite SEO performance by 18%.
  • Designed and shipped 10+ responsive, production-grade UIs using reusable Next.js components, standardizing the frontend architecture and reducing development time for new feature pages.
  • Collaborated cross-functionally with marketing and SEO teams to translate requirements into scalable technical modules, increasing overall user engagement by 25%.

Software Trainee

MiddlewareHQ · San Francisco, CA (Remote)

Apr 2025Jun 2025
  • Contributed to backend services in Python for a B2B SaaS engineering-productivity platform, collaborating with senior engineers to improve software integration and lift client satisfaction by 25%.
  • Applied scalability techniques to middleware components, improving solution performance by 30% to support growing client load.
  • Engineered backend ETL pipelines to compute and validate DORA metrics with 100% accuracy, strengthening data reliability for downstream reporting.
  • Built TypeScript integrations across middleware services, improving code maintainability by 40% and cutting debugging time by 50%.

Junior Software Engineer

Acumen Cognitive Engineering · Mumbai, India

Dec 2023Jun 2024
  • Refactored a production AI chatbot codebase and optimized API call sequencing, cutting response latency by 33% and reducing total code volume by 30% while improving maintainability.
  • Integrated third-party RESTful and JSON-based APIs, improving data processing throughput by 25% over six months; used Postman for systematic API testing and debugging.
  • Designed and implemented RAG data pipelines using Apache Airflow and Pandas, automating ingestion and transformation workflows and cutting processing time by 40% within three months.
  • Worked directly with LLM-backed systems in production, gaining practical exposure to prompt constraints and the challenges of testing and validating non-deterministic model outputs.

Projects

Selected work

www.npmjs.com/package/medusa-payment-hyperswitch
Hackathon Winner

Juspay Hyperswitch Plugin

Custom MedusaJS plugin integrating the Juspay Hyperswitch payment ecosystem via RESTful APIs — winner of the Juspay Hackathon.

  • Cut merchant integration time by 25%
  • Modular architecture compatible with 95%+ of MedusaJS stores
  • Reduced latency by 20% and increased transaction success rates by 15%
  • Streamlined onboarding UI cut payment-gateway setup time by 40%
TypeScript
React
MedusaJS
REST API
myssterybox.onrender.com

BookChat

Full-stack MERN book marketplace with secure Razorpay payment integration.

  • Achieved 100% uptime with secure Razorpay payment integration
  • Drove a 24% increase in organic traffic and a 50% reduction in bounce rate
React
Express.js
MongoDB
Node.js

Skills

Toolbox

Languages

Python
Go(working knowledge)
JavaScript/TypeScript
C
Rust(beginner)

Backend & APIs

REST API design & integration
Node.js
Express.js
Async workflows
ETL pipelines

Infrastructure & Data

MongoDB
Apache Airflow
Pandas
Git
Postman
Containerized deployment

AI / LLM Ecosystem

RAG pipeline design
LLM-integrated production systems
Prompt-constraint awareness

Education

Academic background

2025

Bachelor of Engineering

New Horizon Institute of Technology and Management, Thane, MH

2022

Diploma in Computer Engineering

Government Polytechnic Thane, Thane, MH