Senior Software Developer · India

Nafish
Ahmed.

I build scalable full-stack systems end-to-end — from backend APIs and microservices to polished UIs and mobile apps. MERN stack, TypeScript, React Native. 4+ years across product companies. Currently shipping indie SaaS products solo.

4+ Years exp.
1M+ Users served
99% Perf. win
Solo Indie builder
01 Experience
Feb 2025 – Present Vimo Software India

Senior Full Stack Developer

  • Designed and built a real-time transaction confirmation engine — event-driven, fault-tolerant, and capable of handling concurrent state updates reliably.
  • Integrated multiple third-party financial APIs managing full transaction lifecycles: order creation, status polling, settlement, and fund reconciliation.
  • Built encrypted secrets management infrastructure for handling sensitive credentials securely across production services.
  • Engineered a high-throughput API gateway service using a microservices pattern to reliably route client traffic to multiple external provider APIs.
  • Led a full-stack legacy system migration to a modern React.js / Node.js / TypeScript stack — significantly improving performance, maintainability, and reliability.
Node.js TypeScript React.js Microservices REST APIs
Mar 2024 – Jan 2025 Softway Solutions India

Software Engineer

  • Cut report generation time from 45–60 minutes down to 3–5 seconds — a 99%+ improvement — by restructuring queries and introducing batch processing.
  • Resolved stateful data bottlenecks in Daikin Cloud Services using Redis caching, dramatically improving dashboard load times.
Node.js Redis MySQL Performance Engineering
Apr 2022 – Feb 2024 Vimo Software India

Full Stack Developer

  • Maintained and optimised the backend infrastructure of AmanaWallet, a digital money transfer platform trusted by over 1 million customers.
  • Integrated multiple third-party payment and exchange APIs — managing full order lifecycles, settlement confirmation, and automated fund flows.
  • Built and scaled backend systems for Sarraf & Sendony, integrating multiple payment gateways for fiat transaction processing.
Node.js React.js MySQL TypeScript Payment APIs
Aug 2021 – Mar 2022 Avital Software India

Full Stack Developer

  • Built core backend services and admin panel for SuperMD, a teleconsultation platform — covering secure data handling, role-based access control, and API performance.
Node.js React.js MongoDB PHP
02 Indie Products
Live on Play Store

Luno.

A privacy-first, local-first personal finance app. All data stays on-device — no accounts, no cloud, no tracking. Clean financial clarity built for real users.

React Native Expo SQLite Android
In development

BriefLoop.

Client update portal for freelancers and agencies. Replace messy status emails with a clean, branded space where clients track project progress asynchronously.

Next.js 15 Hono.js MongoDB SaaS
03 Projects
01 · Work

AmanaWallet

Digital money wallet for worldwide remittances — trusted by 1M+ customers. Built and maintained the backend infrastructure and admin systems.

Node.js React.js TypeScript
02 · Work

SuperMD

Teleconsultation platform connecting patients with healthcare professionals for virtual advice and prescriptions. Built core backend and admin panel.

Node.js React.js MongoDB
03 · Work

Haaki

Audiobook and audiodrama platform in Turkish. Built for immersive storytelling with a large content library and a smooth listening experience.

React.js Node.js TypeScript
04 · Solo

dVal

Lightweight schema-based data validation library for Node.js and TypeScript backends. Simple API, zero bloat. Published on NPM.

Node.js TypeScript NPM
05 · Solo

Secretly

Internal tool for managing environment variables securely across multiple production services — improving security and deployment consistency.

Node.js TypeScript
06 · Solo

FinTracker

Personal finance app for tracking daily expenses and income with monthly insights — an early precursor to Luno.

Flutter Dart
04 Stack
LanguageTypeScript
LanguageJavaScript
LanguagePHP
BackendNode.js
BackendExpress.js
BackendHono.js
BackendREST APIs
BackendMicroservices
FrontendReact.js
FrontendNext.js 15
FrontendSvelte
MobileReact Native
MobileExpo
MobileFlutter
DatabaseMongoDB
DatabaseMySQL
DatabaseRedis
DatabaseSQLite
CloudAWS EC2/S3
DevOpsDocker
ORMDrizzle ORM
StylingTailwind v4