Hello, I'm

Ashish Chauhan

Senior AI & Back End Developer

Results-driven AI and Backend Engineer specializing in high-performance server-side applications, scalable APIs, and production AI systems with Node.js, FastAPI, and PostgreSQL.

View My Work Contact Me

Years Experience

Key Projects

Companies

60%

AI Accuracy Boost

About Me

Building scalable backends & AI systems that deliver impact

Results-driven AI and Backend Engineer specializing in the architecture of high-performance server-side applications and scalable APIs. Adept at bridging the gap between advanced machine learning concepts and production-ready systems. Proven expertise in orchestrating LLM integrations, optimizing complex database schemas, and solving technical bottlenecks for AI-driven platforms. Dedicated to writing robust, maintainable code, conducting rigorous peer reviews, and delivering secure, multi-tenant solutions using Node.js, FastAPI, and PostgreSQL.

Multi-tenant SaaS & PostgreSQL isolation
AI agent orchestration & LLM pipelines
High-concurrency APIs & WebSockets
Production CI/CD on AWS & Docker

Ashish Chauhan

Years Experience

Career Path

Professional Experience

Rexett AB

Senior AI & Backend Engineer

Sept 2025 - Present

System Design & APIs: Designed, developed, and maintained scalable server-side applications and APIs for an AI-integrated recruitment platform (Kretsia).
Technical Troubleshooting: Diagnosed and solved real-world technical issues to optimize multi-tenant PostgreSQL database architectures, ensuring high data isolation and secure payment processing via Stripe.
AI Integration & Optimization: Developed AI-agent orchestration features to automate workflows, refining LLM prompts and API logic to advance machine learning system accuracy by 60%.
Quality Assurance: Reviewed AI-generated outputs and system behaviors to enhance AI-driven candidate matching and improve overall data quality.

Aviox Technologies Pvt. Ltd.

(Consultant for Rexett AB)

Senior Node.js Developer (AI Focus)

Dec 2024 - Sept 2025

Performance Optimization: Specialized in system design and performance optimization for AI-driven platforms, focusing on high-performance server-side programming and complex data processing.
Scalable Deployments: Maintained server-side applications and automated deployment pipelines utilizing modern CI/CD practices for seamless production releases.
Cross-Functional Collaboration: Collaborated with engineering teams to solve technical challenges, translating complex AI research requirements into robust, production-ready backend code.

smartData Enterprises Inc.

Senior Associate Level-II (Backend & Full Stack)

Sept 2023 - Sept 2024

Application Development: Managed backend and full-stack lifecycles for diverse web solutions, prioritizing high-performance API execution and maintainable code architecture.
System Debugging: Diagnosed system bottlenecks and streamlined development workflows by integrating automated testing and Jenkins pipelines, drastically improving deployment stability.

Wegile

Senior Web Developer (Backend)

Feb 2023 - Aug 2023

Architecture: Designed scalable server-side architectures and optimized database schemas to support end-to-end application functionality and high user concurrency.
Process Documentation: Facilitated smooth project transitions by thoroughly training team members and documenting technical processes during project hand-offs.

Webner Solutions Pvt. Ltd.

Software Engineer

Dec 2018 - Dec 2022

Server-Side Development: Led end-to-end backend development of enterprise-level dashboards, transitioning systems from prototype to secure, high-traffic production environments.
Peer Review & Mentorship: Reviewed peer-developed deliverables and conducted deep-dive code reviews to enforce scalable coding practices and enhance overall system design quality.

What I Do

My Services

Backend Architecture

Scalable Node.js, FastAPI, and NestJS systems built for multi-tenant SaaS and high-traffic APIs.

AI Agent Systems

LLM orchestration with OpenAI and Anthropic — semantic parsing, evaluation engines, and agent workflows.

Database Design

Complex PostgreSQL schemas, Redis caching, and MongoDB models optimized for isolation and speed.

System Design

RESTful & GraphQL APIs, WebSockets, Stripe payments, and production-ready CI/CD on AWS and Docker.

Featured Projects

Selected Work

Let's collaborate

AI Recruitment SaaS

Kretsia

A highly-scalable multi-tenant SaaS backend with autonomous semantic candidate extraction and evaluation.

Node.js · Python · PostgreSQL · OpenAI SDK

AI Platform

ReviewStack AI

AI-powered reputation management and review analysis platform that extracts actionable insights from customer feedback.

Next.js · Node.js · LLMs

Fintech Backend

Tabadulat

High-performance backend telemetry engine streaming live financial data with lag-free mathematical filtering.

Node.js · MySQL · Redis

Bidding Engine

Turnautomotive

High-concurrency vehicle bidding engine processing thousands of live WebSocket streams.

Node.js · Laravel · MySQL · WebSockets

Health Intelligence

ScanGuard AI

Enterprise Health Intelligence system utilizing computer vision and LLMs for diagnostic support.

Python · Computer Vision · LLMs

Web Platform

Café Albatraoz

Modern Indian Café web platform featuring an elegant UI and reservation capabilities.

React · TailwindCSS

B2B Backend

HHH Traders

Full-scale B2B backend featuring a custom inquiry API and dynamic inventory management on scalable NoSQL databases.

Node.js · MongoDB · Next.js

Technical

Skills

Backend & Server-Side

Node.js, Express.js, Python, FastAPI, NestJS

Databases & Caching

PostgreSQL, MongoDB, Redis

System Design

REST & GraphQL, Multi-tenant SaaS, Stripe

AI & Machine Learning

OpenAI, Anthropic, AI Agents, Vector DBs

Cloud & DevOps

AWS, Jenkins, GitHub Actions, Docker, Vercel

Frontend Knowledge

React.js, Next.js, Tailwind CSS, TypeScript

Let's Work Together!

Looking for a Senior AI & Backend Engineer? Reach out — I'm open to building scalable systems and AI-driven products.

Contact Me +91 8894666684