Systems Builder

VISHALKESHARWANI

I BUILD THINGS
I WANT TO
UNDERSTAND.

Backend systems. Distributed infrastructure. Cloud. AI exploration. I like taking technology apart, understanding what happens underneath, and turning that understanding into software.

EXPLORE WORKGITHUB↗
JAVA·SPRING BOOT·KAFKA·KUBERNETES·AWS·PYTHON
PUNE, INDIA|OPEN TO BACKEND · SYSTEMS · CLOUD
Vishal Kesharwani
SCROLL TO EXPLORE
15+Production REST APIs
~50%Fewer DB Lookups
~30%Less Manual Release
1000AWS Score / 1000
80+LeetCode Problems
02 / WORK

WORK THAT MADE ME
A BETTER ENGINEER.

CLOUD-NATIVE JOB APPLICATION TRACKER
PROJECT 01
01 / DISTRIBUTED SYSTEM● FEATURED

CLOUD-NATIVE JOB APPLICATION TRACKER

Three services. Events instead of direct coupling.

3 INDEPENDENT SERVICESEVENT-DRIVENSELF-HEALING

Java · Spring Boot · Kafka · Redis · Kubernetes · AWS EKS · Docker · Terraform · ArgoCD · Flyway · Prometheus · Grafana

→3 independent services with zero direct calls
→Event-driven analytics with Redis read model
→Event-log replay for reliable data recovery
→Health probes and HPA autoscaling verified
→Full observability: Prometheus, Grafana, Loki, Tempo, OpenTelemetry
ARCHITECTURE
SERVICE A↓KAFKA↓SERVICE B↓KAFKA↓SERVICE C
GitHub
SEVA MAHILA UDYOG
PROJECT 02
02 / PRODUCTION SYSTEM● LIVE IN PRODUCTION

SEVA MAHILA UDYOG

Software handling real business workflows.

60+ CUSTOMERS45+ REST APIs13 DOMAIN MODULES

Java · Spring Boot · PostgreSQL · JWT · bcrypt · OTP · Rate Limiting · 2FA

KNOWLEDGE NEXUS
PROJECT 03
03 / REAL-TIME PLATFORM● FULL-STACK

KNOWLEDGE NEXUS

Keeping the user workflow responsive while work continues behind the scenes.

REAL-TIME CHATKAFKA EVENTSOAUTH2

React · TypeScript · Spring Boot · PostgreSQL · Kafka · Docker · JWT · OAuth2 · WebSocket/STOMP · Flyway · Google Calendar

EVENT FLOW
USER↓BOOK SESSION↓API↓EVENT↓KAFKA↓NOTIFICATION↓CALENDAR
GitHub
CLOUDLENS AI
PROJECT 04
04 / AI + INFRASTRUCTURE● EXPLORING

CLOUDLENS AI

Making infrastructure easier to understand.

TERRAFORMAWSAI ANALYSIS

Python · Terraform · AWS · Alembic · REST APIs

TERRAFORM + AWS + AI
Systems → AI exploration
GitHub
OM SAI MITRA MANDAL
PROJECT 05
05 / COMMUNITY PWA● LIVE IN PRODUCTION

OM SAI MITRA MANDAL

A festival app the whole community opens every day.

7-DAY SCHEDULE3-LANGUAGE AARTISPWA + ADMIN

Next.js · React · TypeScript · Tailwind CSS · Supabase · PWA

Live SiteGitHub
03 / SYSTEMS

PULL APART THE THINGS I BUILD.

ARCHITECTURE
Authentication
↓
Database
↓
Event Bus
↓
Kafka
↓
Consumer
WHY THIS DECISION?

Why stateless auth? — JWTs scale horizontally without session storage.

USED IN
Job TrackerKnowledge Nexus
04 / FAILURE

SYSTEMS ARE EASY
UNTIL THEY FAIL.

Interactive simulation of a distributed system. Kill a pod, drop a message, add latency — and see what happens.

⚠ SIMULATED SYSTEM — NOT REAL PRODUCTION INFRASTRUCTURE
SYSTEM STATE
SERVICE-A
running
SERVICE-B
running
SERVICE-C
running
KAFKA
healthy
TRAFFICnormal
ACTIONS
05 / EXPERIENCE

WHERE I LEARNED
TO BUILD.

2026

SteepGraph Systems

Backend Developer Intern

Feb 2026 – Jun 2026Pune, India
OPTIMIZATION RESULT
BEFORE
Repeated DB lookups
AFTER
Debounced validation
RESULT
~50% reduction
→15+ production-grade REST APIs using Java, Spring MVC, PostgreSQL, Spring Security
→ETL optimization with debouncing logic — ~50% fewer redundant database lookups
→Real-time SQL table extractor using live database metadata
→Service debugging across 10+ components
→Enterprise migration pipelines on 3DEXPERIENCE platform
→gRPC inter-node communication in master-slave ETL architecture
→Angular UI contribution integrated with backend REST APIs
JavaSpring MVCPostgreSQLSpring SecuritygRPCETL3DEXPERIENCE
2025

SortUs

Cloud & DevOps Intern

Jun 2025 – Aug 2025Remote / Pune, India
DEPLOYMENT PIPELINE
COMMIT→BUILD→TEST→DEPLOY
→AWS Lambda serverless deployments with GitHub Actions CI/CD
→Node.js and MongoDB backend modules
→Angular 17 frontend functionality
→~30% reduction in manual release effort
KEY RESULT

~30% reduction in manual release effort

Node.jsMongoDBAWS LambdaGitHub ActionsAngularTypeScript
06 / EDUCATION

WHERE I LEARNED
THE FOUNDATIONS.

MIT Academy of Engineering, Pune
2022 – 2026

MIT Academy of Engineering, Pune

B.Tech in Computer Engineering

CGPA8.63 / 10
→Relevant coursework: Data Structures, Operating Systems, DBMS, Computer Networks, Cloud Computing
BNN College
2021 – 2022

BNN College

Higher Secondary (XII)

PERCENTAGE71%
→Science stream with Mathematics
→JEE Mains 2022: 93.91 Percentile
→MHCET 2022: 96.46 Percentile
Dr. Omprakash Agarwal English High School
2019 – 2020

Dr. Omprakash Agarwal English High School

Secondary (X)

PERCENTAGE85.20%
06 / LAB

QUESTIONS BEFORE PROJECTS.

Not everything I build starts as a project. Sometimes it starts as a question.

QUESTION

CAN A CODING AGENT SAFELY MODIFY AN UNFAMILIAR CODEBASE?

WHAT I EXPECTED

Agent would struggle with multi-file context and cross-references.

WHAT I TESTED

Testing agent reasoning on multi-file codebases with varying complexity.

WHAT HAPPENED

Context window management is critical — agents lose coherence beyond a threshold.

WHAT I LEARNED

RAG-based code analysis is more reliable than raw context stuffing.

NEXT

Implement retrieval-augmented code analysis pipeline.

07 / JOURNAL

WHAT I LEARN
WHILE BUILDING.

09 SEP 2026
AI
Why I'm looking at coding agents
I've spent years building backend systems. Now I'm interested in what happens when the software itself starts participating in the engineering loop.
08 SEP 2026
SYSTEMS
Kafka burst test exposed duplicate processing
Idempotency issue discovered in consumer group — exactly-once semantics matter more than I thought.
05 SEP 2026
KUBERNETES
ConfigMap key mismatch caused pod crash loop
Deployed another service and debugged a configuration issue that wasn't visible until runtime.
28 AUG 2026
BUILD
CloudLens AI backend modules complete
6 core modules: parser, pipeline, pricing, reviewer, rules, schemas — the real engineering started at the boundaries.
20 AUG 2026
CLOUD
ArgoCD GitOps pipeline working end-to-end
Automated deployment from Git push to cluster update. The feedback loop is finally tight.
15 AUG 2026
FAILURE
Pod failure during load test
Learned about pod disruption budgets the hard way. The system recovered but it shouldn't have needed to.
08 / SIGNAL

PROOF OVER CLAIMS.

AWS CERTIFIED
AWS CERTIFIED
1000 / 1000
Cloud Practitioner CLF-C02
SIH 2024
SIH 2024
GRAND FINALIST
National-level hackathon
CAVISTA TECH HACKATHON
CAVISTA TECH HACKATHON
1ST RUNNER-UP
₹50,000 prize
FLIPKART GRID 7.0
1582 / 10,000+
Round 2 — Edge-based traffic violation detection
DATATHON 2025
DATATHON 2025
RUNNER-UP
Campus datathon
MITAOE E-SUMMIT IDEATHON
MITAOE E-SUMMIT IDEATHON
WINNER
Innovation competition
ACM STUDENT CHAPTER
DESIGN LEAD
Core Member & Design Lead, MITAOE
LEETCODE
80+
Problems solved in Java
09 / ABOUT

WHO IS VISHAL?

Vishal Kesharwani

I'm a Computer Engineering graduate based in Bhiwandi, Thane.

I started with software development, moved deeper into backend systems and infrastructure, and now I'm exploring AI and developer tooling.

I learn by building, debugging and understanding what happens underneath the abstraction.

FIELD
B.Tech in Computer Engineering
CGPA
8.63 / 10
LOCATION
INSTITUTION
MIT Academy of Engineering
10 / NEXT

WHAT SHOULD WE
BUILD NEXT?

Interested in backend systems, distributed infrastructure, cloud engineering, AI exploration, and difficult technical problems.

GET IN TOUCH
GITHUB ↗ LINKEDIN ↗ RESUME
vishalkes1378@gmail.com