debayan@webvitalskit:~

$ whoami

Debayan Singha

Senior Full-Stack Engineer · 10 years

$ cat status.txt

I build and ship production web systems — Node.js, React, AWS, Kafka, Kubernetes — and I've spent the last stretch getting genuinely fast with AI-assisted tooling, not just talking about it. Currently open for freelance and fractional engineering work.

environment

Stack

RUNTIME=Node.jsFRONTEND=ReactINFRA=AWSSTREAMING=KafkaQUEUE=RabbitMQORCHESTRATION=KubernetesDB=Postgres · MongoDBTOOLING=AI-assisted delivery

git log --oneline

Recent work

e91f3aa

Loan-disbursal workflow for Jiraaf, an NSE-approved bond investment platform

Built the payment pipeline end-to-end with AI-assisted development — PayU/Freecharge integration, transaction review, gateway health checks, settlement validation, and borrower disbursal. One of two engineers owning this critical financial functionality.

ReactNode.jsTypeScriptPostgreSQL
b204d7c

KYC & regulatory compliance workflow, including a profile-page redesign

Backend verification logic and PostgreSQL data models for KYC requirements, built with AI-assisted tooling to move fast without sacrificing correctness. Also refactored legacy frontend business logic into backend services for better maintainability.

PostgreSQLCompliance
c17a5be

Led Vue 2 → Vue 3 migration on a large-scale production SaaS platform

Used AI-assisted tooling throughout the migration to the Composition API, including complex customer-facing workflows like the Conversations platform. Balanced speed with long-term maintainability — refactored legacy systems along the way.

Vue 3Composition APIFrontend Architecture

now serving

Availability

STATUSOpen for work
ENGAGEMENTFreelance & fractional contracts
RATE$40–60/hr, depending on scope
TIMEZONEIST — flexible overlap for US/EU teams
LOCATIONKolkata, India · Remote