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Available for interesting problems

Hi, I'm Sahil. Software Engineer building scalable systems, AI products & cloud platforms.

$ whoami

View my work Get in touch
Java · Spring Boot AWS · CDK LLM Pipelines

01 / About

Systems thinker,
production shipper.

Portrait of Mohd Sahil

I'm a Software Development Engineer at Prosperr.io, where I design and ship backend microservices, AWS infrastructure automation, and AI-assisted document pipelines that power critical financial workflows.

My happy place: taking an ambiguous product problem, breaking it into clean state machines and APIs, and walking it all the way to production. Day-to-day that means Java & Spring Boot on the service side, AWS (ECS Fargate, Lambda, CDK) underneath.

Off the clock I grind DSA (700+ solved) and tinker with distributed-systems and LLM side projects.

0faster infra setup
0AWS cost cut
0doc parsing lift
0DSA problems

// capability radar

02 / Skills

The toolbox.

⌥

Backend

  • Java
  • Spring Boot
  • Python
  • Node.js
☁

Cloud

  • AWS
  • ECS
  • Lambda
  • RDS
  • S3
  • CloudFront
⎈

DevOps

  • Docker
  • Kubernetes
  • GitHub Actions
  • Terraform
  • CDK
⛁

Databases

  • PostgreSQL
  • Redis
  • MongoDB
  • Trino
  • Neo4j
✳

AI

  • OpenAI
  • LangChain
  • Vector DBs
  • RAG
  • Embeddings
  • LLMs
▣

Frontend

  • React
  • Next.js
  • TypeScript

03 / Projects

Things I've shipped.

DeskPet

Shipped · macOS & Win

Electron · Canvas · Node · electron-builder

Pixel-cat desktop pet living as transparent always-on-top overlay. Follows cursor, reacts to typing, runs Pomodoro reminders - and celebrates when your agentic IDE finishes. Procedural pixel art, no sprites.

Live Demo ↗ GitHub

Conduit

In Development

Distributed Systems · Event Sourcing · Workers · Postgres

Self-hosted workflow orchestration engine - lightweight Temporal analogue built from first principles. Durable state, retries with backoff, DLQs, idempotent execution, saga compensation, crash recovery via event sourcing.

GitHub

Reimbursement Microservice

@ Prosperr.io

Java · Spring Boot · PostgreSQL · SQS · ECS Fargate

End-to-end backend service powering reimbursement transaction processing - API contracts, state-machine workflows, async event handling, production rollout.

CDK Deployment Automation

@ Prosperr.io

AWS CDK · TypeScript · ECS Fargate · ALB · CloudWatch

Standardized infra provisioning and blue-green deployments as code. New-service setup time down 70%; manual ECS/ALB configuration gone.

Payslip Extraction Pipeline

@ Prosperr.io

AWS Textract · OpenAI · Java · S3

OCR + LLM-assisted structured extraction. Parsing accuracy to 85%, successful document processing up 4x.

ANDI-BOT

5th / 80+ teams

MERN · OpenAI APIs

Full-stack conversational platform with multi-turn context handling and low-latency request orchestration. 5th place at FinXThon.

04 / Experience

The timeline.

  • Owned end-to-end design + backend of the Reimbursement microservice - workflows, REST APIs, production rollout for transaction processing.
  • Designed state-machine driven workflows for the ITR filing journey; reliability up, manual intervention down across dependent services.
  • Automated ECS Fargate deployments with AWS CDK (TypeScript) - standardized provisioning + blue-green; setup time cut 70%.
  • Cut AWS spend ~30% via workload analysis and right-sizing.
  • Integrated Bolna.ai voice agents with backend workflows; CSR follow-up load down 55%.
  • Revamped payslip pipeline with Textract + LLM extraction - accuracy to 85%, parsing success 4x.
JavaSpring BootPostgreSQLSQSECS FargateCDKTextractOpenAI
70%faster setup
30%cost saved
55%CSR load cut
4xparse rate
  • Migrated auth from passwords to OTP-based flow - signup drop-offs down 30%.
  • Built Puppeteer.js automation fetching ITR documents from government portals; manual uploads slashed.
Node.jsPuppeteerREST
  • Top Achiever - high-impact backend delivery and ownership across production systems. post ↗
  • Unsung Hero - behind-the-scenes reliability and operational improvements. post ↗
  • Hidden Gem - AI-assisted automation initiatives across production workflows. post ↗

05 / Systems

Architecture, interactive.

Click any node to inspect it. Packets are decorative. Mostly.

sahil@prod: ~/systems - zsh
➜

06 / GitHub

Commit telemetry.

// profile

–public repos
–followers
0DSA solved
@notsahill ↗

// contributions

// languages

Java
38%
TypeScript
26%
Python
16%
JavaScript
14%
C++
6%

07 / Contact

Let's build something worth deploying.

Inbox always open - opportunities, questions, or a simple hello.

mailcontactsahil.cs@gmail.com cell+91 63076 50739 in /md-sahil22 gh /notsahill lc /not_humorous