# SARAVANAKUMAR User

SARAVANAKUMAR User is a remote worker on Himalayas, Full Stack Engineer at Cogniwide, based in India.

Source: https://himalayas.app/@saravanakumaruser

```text
Full Stack Engineer at Cogniwide who improved query performance by 30% and delivered SaaS systems for 10+ schools.
```

| Detail | Value |
| --- | --- |
| Availability | Looking for a job |
| Location | India |
| Authorized to work in | India |
| Salary expectations | 749k+ INR |
| Job categories | Full Stack Engineer, Backend Engineer, Frontend Engineer |
| Skills | Fullstack Development, Multi tenant SaaS, REST API Design, database performance optimization, Asynchronous Processing, Real Time Systems, LLM Applications, Python, fastAPI, PostgreSQL, React, NodeJS, Redis, JavaScript, TypeScript |

## About

```text
At Cogniwide, I owned technical delivery for a multi-tenant school ERP, coordinating a four-member team from planning through production releases. The system supported 10+ schools and 1,000+ users.

I improved average query performance by 30% across three FastAPI services through indexing, query and schema optimization, PgBouncer pooling, and Redis caching. I also integrated retry-safe Razorpay payments and built real-time bus tracking for 50+ buses and 200+ parents.

For CR Pro, I implemented record-level edit locking with WebSockets and Redis Pub/Sub to prevent conflicting edits among 300+ employees. I also integrated Docling and LangChain for structured document extraction and AI-assisted rewriting.

On my Chat With Database project, I built a natural-language query app with read-only safeguards, SQL validation, and self-correcting retries. It achieved 94% execution accuracy on a hand-verified test set.
```

## Experience

### Full Stack Engineer

Cogniwide. Jun 2024 - Oct 2026

```text
Owned technical delivery for multi-tenant SaaS applications, leading a four-member team. Improved query performance by 30% and integrated Razorpay payments with idempotency handling.
```

Skills: Python, fastAPI, PostgreSQL, Redis, Celery, React, JWT, RBAC, Razorpay, PG-Bouncer, Docker, Git, Alembic

## Education

### Mepco Schlenk Engineering College

Bachelor of Engineering, Computer Science and Engineering. 2020 - 2024

```text
Pursued a Bachelor of Engineering in Computer Science and Engineering from 2020 to 2024.
```

## Tech stack

- Chart.js
- Docker Compose
- PostgreSQL
- MongoDB
- Node.js
- Tailwind CSS
- Redis
- React
- Vue.js
- JavaScript
- Python
- Celery
- FastAPI
- TypeScript
- Git
- Docker
- SQL
- LangChain
- PgBouncer
- LangGraph
- Razorpay
- Docling

To contact SARAVANAKUMAR, message them from this profile with a Himalayas employer account: [Hire on Himalayas](https://himalayas.app/hire).

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