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Experience

I'm a passionate full-stack developer specializing in crafting innovative solutions with expertise in Next.js, TypeScript, and modern web technologies. My work focuses on building scalable applications that deliver exceptional user experiences

Kayana

Jan 2025 - Present

Fullstack Developer

Production-scale ordering & payment solutions for 100+ restaurant properties.

  • Architected event-driven reporting across 3 microservices (Kafka 3-node SASL_SSL cluster), 14 report types, 100+ restaurant properties.
  • Optimised JVM batch service: memory 12 GB → 4 GB, CPU usage −50%, API latency −30%.
  • Built PCI-DSS compliant payment infrastructure (Stripe + Adyen) on Spring Boot microservices with RBAC and idempotent transaction processing.
Spring BootKafkaPostgreSQLStripeAdyenJava

Ferdous & Associates

Mar 2024 - Dec 2024

Junior Software Engineer

Led team of 4 to deliver full tax management product.

  • Led team of 4 to deliver full tax management product on MERN stack — zero critical post-launch defects.
  • Integrated GST APIs + Razorpay handling 500+ transactions/month.
  • Reduced manual processing time by 60% with automated tax-notice tracking.
ReactNode.jsExpressMongoDBRazorpayGST APIs

Mobiurja Pvt. Ltd.

Jul 2023 - Feb 2024

React & Node.js Developer

Migrated legacy infrastructure and implemented caching layers.

  • Migrated legacy PHP app to MERN stack — 45% page-load improvement, 99.9% uptime.
  • Built Redis caching layer → 35% DB load reduction.
ReactNode.jsRedisPHPMySQL

AI / ML

RAG Pipelines
LLM Integration
Prompt Engineering
Groq (LLaMA-3.3-70b)
Anthropic Claude
LangChain
Upstash Vector
Sentence-Transformers

Languages

TypeScript
Python
JavaScript
Java (17/21)
SQL
Swift
Kotlin

Frontend

Next.js 16
React 19
React Native
Tailwind CSS 4
Shadcn/ui
Zustand
TanStack Query
Framer Motion

Backend

FastAPI
Spring Boot 3.x
Node.js
REST APIs
GraphQL
Microservices
Hibernate/JPA

Databases

PostgreSQL
MongoDB
Redis
MySQL
Upstash Vector

Infrastructure / DevOps

Docker
Kubernetes
Kafka
RabbitMQ
AWS
Vercel
GitHub Actions
Nginx
CI/CD

Mobile

iOS (Swift/SwiftUI)
Android (Kotlin/Jetpack Compose)
APNs
FCM
Ably SDK