Ravi Gupta — Backend & AI Engineer

Ravi Gupta

Backend & AI Engineer

LocationINDIA

Experience3.5+ years

PrimaryJava · Python

Status● Open to work

EducationThapar University

Search system performance gain

0ms

Avg API response time

Manual deployment effort reduced

Requests/min handled efficiently

// 01 · about

BACKEND

ROOTS.

AI FUTURE.

Backend engineering experience at Infosys building enterprise systems under real production SLAs. I know what it means to own a service, not just ship it.

Java + Spring Boot for robust, scalable enterprise APIs. Python + FastAPI for modern async-first services. Both used in production across teams and deadlines.

Now focused on AI backend engineering - building the infrastructure, orchestration pipelines, and APIs that turn AI models into systems that actually work at scale.

ravi.py

from dataclasses import dataclassfrom typing import List @dataclassclass RaviGupta:    # backend & AI engineer    role: str = "Backend & AI Engineer"    years_exp: float = 3.5+  # years in production    stack: List[str] = ("Java", "Python", "Spring Boot", "FastAPI")    infra: List[str] = ("Docker", "CI/CD Pipelines", "PostgreSQL")    open_to: str = "AI Backend · Senior Backend"    available: bool = True     def contact(self) -> str:        return "gupta_ravi@outlook.in"

// 02 · skills

WHAT I

WORK WITH.

01 · Backend & APIs

Backend & APIs

Java●●●●●

Spring Boot●●●●●

Python●●●●●

FastAPI●●●●●

LangGraph●●●●●

REST APIs●●●●●

Microservices●●●●●

Async API Design●●●●●

8 skills

02 · Database & Caching

Database & Caching

PostgreSQL●●●●●

SQL●●●●●

SQLAlchemy●●●●●

Hibernate●●●●●

Redis●●●●●

Query Optimization●●●●●

6 skills

03 · DevOps & Tools

DevOps & Tools

Git●●●●●

Docker●●●●●

CI/CD Pipelines●●●●●

Azure Cloud●●●●●

Postman●●●●●

JIRA●●●●●

Groq●●●●●

7 skills

04 · Engineering Fundamentals

Engineering Fundamentals

Data Structures & Algorithms●●●●●

Object-Oriented Programming●●●●●

System Design●●●●●

Distributed Systems●●●●●

Agile / Scrum●●●●●

5 skills

Java

Python

Spring Boot

FastAPI

Flask

PostgreSQL

Docker

Git

Azure

Java

Python

Spring Boot

FastAPI

Flask

PostgreSQL

Docker

Git

Azure

Hibernate

Maven

Postman

JIRA

Bootstrap

HTML5

GitHub

Linux

Pega

Hibernate

Maven

Postman

JIRA

Bootstrap

HTML5

GitHub

Linux

Pega

// 03 · experience

WHERE
I'VE
WORKED

Across teams and systems - built, owned, and shipped backend and AI services in production.

3.5+

years in production

Independent Backend & AI Engineer

Self-Employed · Remote · May 2024 – Present

—Built and delivered a full business operations platform for a client using FastAPI and PostgreSQL, replacing manual GST invoicing, payment tracking, and ledger workflows with a production system used in daily operations.
—Designed a split deployment where public and admin services run completely separately - admin APIs locked behind a Tailscale VPN at the network level, and payment status calculated at the database layer to prevent incorrect states from frontend input.
—Built production-grade backend and AI systems independently covering distributed auth, atomic financial transactions, and multi-agent orchestration - and regularly wrote about the engineering decisions behind them on Dev.to.

Client

Production Delivery

Freelance

AI & Backend Engineering

Senior Systems Engineer

Infosys · Bangalore · Jan 2023 – Jan 2024

Systems Engineer

Infosys · Bangalore · Jul 2021 – Dec 2022

Java Intern

FortyTwo Labs · Pune · May 2020 – Aug 2020

// 04 · projects

SELECTED

WORK.

View All Projects

05 · freelance

Business Management Platform

End-to-end business system replacing manual GST workflows - invoicing, payments, and analytics with secure admin isolation at the network level.

Next.jsFastAPIPostgreSQLTailscaleReportLab

API endpoints delivered

₹0

Infra cost (secure admin)

4wk

End-to-end delivery

100%

Manual workflow replaced

↗ GitHub

View Details →

06 · backend

VaultPay

Fintech wallet backend with atomic transactions, dual-mode auth validation, and zero user data ownership - built as a microservice on top of AuthShield.

FastAPIPostgreSQLRedisDockerAuthShield

Atomic transfer flow

RBAC tiers

Dual

JWT validation

Decoupled

Auth service design

↗ GitHub ▶ Live

View Details →

07 · ai

Anviksha

Multi-agent AI code review system where specialist agents analyze security, performance, and architecture in parallel, with blind evaluation and conflict-aware reasoning.

LangGraphFastAPIGroqPostgreSQLNext.jsAuthShield

Specialist AI agents

<5s

Full pipeline latency

SSE

Real-time result streaming

Blind

Evaluator scoring system

↗ GitHub ▶ Live

View Details →

// 05 · writing

LATEST

WRITING.

View All Posts

A Deactivated Admin Could Still Use Their Token. That's When Dual-Mode JWT Stopped Being About Speed.

What building cross-service RBAC taught me about the difference between a fast check and a correct...

pythonsecuritybackend

Jun 29, 20268 min read

Dev.to Medium Substack

I Almost Hashed a Document Number That Needed to Be Read Again

What building KYC verification taught me about the difference between encryption and hashing - and...

pythonbackendsecurity

Jun 23, 20266 min read

Dev.to Medium Substack

I Watched Money Move Twice From the Same Request. That's When I Understood Idempotency.

How a double-spend during testing taught me why financial systems treat duplicate requests as a...

pythonbackendredis

May 25, 20266 min read

Dev.to Medium Substack

I Started With a Blocklist. That Was the Wrong Instinct and VaultPay Taught Me Why.

What I learned building VaultPay's IP trust system and why the answer wasn't a blocklist VaultPay...

pythonbackendredis

May 18, 20267 min read

Dev.to Medium Substack