Move by Love Sweat Fitness→
React Native + Node.js fitness app with 100K+ active users. I built the mobile app, the API layer, the payment integration, and the analytics pipeline.
- React Native
- Node.js
- Stripe
- PostgreSQL
Available for work
Freelance developer in Mumbai, working with founders and teams worldwide.
bhuwanesh.ts
const bhuwanesh = {
role: "Full-Stack, Mobile & AI Engineer",
experience: "7+ years",
shipped: 50,
builds: {
web: ["Next.js", "React", "Node.js"],
mobile: ["React Native", "Expo"],
ai: ["agents", "chatbots", "RAG"],
},
available: true,
} satisfies Engineer;
await ship(bhuwanesh); // idea → App Storedeployed · responds in ~24h
- 0+
- Years experience
- 0+
- Apps shipped
- 0K+
- Users on flagship
- 0
- Industries shipped in
React NativeExpoNext.jsNode.jsTypeScriptNestJSPostgreSQLOpenAIClaudeAWS
Selected work
Products I've built end to end
AI Outbound Calling Agent→
A voice agent that places and answers calls for lead qualification and follow-up. It talks naturally, books slots, and writes results back into the CRM through tool calls.
- Next.js
- OpenAI
- Twilio
- Vercel AI SDK
AI Astrology App→
An Expo app that generates personalized astrology readings and a daily chat companion. Birth-chart logic feeds an LLM that answers questions in plain language.
- Expo
- React Native
- OpenAI
- FastAPI
AI Trading Assistant→
A finance assistant that summarizes markets, explains positions, and answers questions over a user's portfolio and news feeds — with clear disclaimers and no auto-execution.
- Next.js
- Anthropic Claude
- pgvector
- Python
RAG Knowledge Assistant→
An embedded chatbot grounded in a company's docs and data, with streaming answers, citations, and evals. Semantic search over pgvector keeps responses accurate and cheap.
- Next.js
- Vercel AI SDK
- pgvector
- Langfuse
Multi-Tenant SaaS Platform→
A subscription platform with org/team accounts, role-based access, usage-based Stripe billing, and an admin panel — tenant isolation enforced with Postgres RLS.
- Next.js
- NestJS
- Drizzle
- PostgreSQL
IndustriesFintechHealthcareAI / Machine LearningE-commerceSaaSReal estate
What I do
What I build
Web, mobile, and the AI inside them — owned from frontend to deployment.
01
Full-Stack Web
Production web apps, owned end to end on a TypeScript-first stack.
- Next.js
- React 19
- TypeScript
- Tailwind v4
- shadcn/ui
- TanStack Query
- TanStack Router
- React Hook Form + Zod
- Redux / Zustand
- tRPC
- SSR / ISR / Edge
- Accessibility (WCAG)
02
Mobile (Bare RN & Expo)
Cross-platform apps shipped to the App Store and Play Store.
- Bare React Native
- Expo (SDK 56)
- Expo Router
- New Architecture (Fabric / TurboModules)
- Reanimated
- Native modules (Swift / Kotlin)
- EAS Build & OTA
- Offline-first (MMKV / SQLite)
- Push
- RevenueCat IAP
03
Backend & APIs
Services that handle real traffic, in Node and Python.
- Python
- Django
- Django REST Framework
- FastAPI
- Celery
- Pydantic
- Node.js
- Bun
- NestJS
- Hono
- Express / Fastify
- REST / OpenAPI
- GraphQL
- gRPC
- WebSockets
04
AI Products & Agents
AI built into real products — agents, chatbots, RAG, automation.
- OpenAI
- Anthropic Claude
- Gemini
- Vercel AI SDK
- RAG
- pgvector / Pinecone / Qdrant
- LangGraph / LlamaIndex
- MCP (servers & clients)
- Claude Agent SDK
- Voice agents (telephony)
- Computer use
- Tool calling
- Evals (Langfuse)
- Guardrails & prompt caching
05
Data, Cloud & DevOps
Data modelled right, deployed properly, and watched in production.
- PostgreSQL
- Supabase
- MongoDB
- Redis
- Elasticsearch
- Kafka / RabbitMQ
- AWS (ECS / Lambda / RDS)
- GCP
- Vercel / Cloudflare
- Docker
- Kubernetes
- Terraform
- GitHub Actions CI/CD
- OpenTelemetry / Grafana / Sentry
06
Payments, Security & Quality
The parts that decide whether a product survives real users.
- Stripe
- RevenueCat
- Auth (Clerk / Auth0 / JWT)
- RBAC & multi-tenancy
- OWASP
- SOC 2 / HIPAA / PCI aware
- Testing (Vitest / Pytest / Playwright / Detox)
- Biome
- CI/CD
- Core Web Vitals
- System design
How I work
Discovery to deployment — one developer, the whole way.
- 01
Discovery
I read your brief, ask sharp questions, and write a clear scope before I quote.
- 02
Plan
You get a written architecture doc, a milestone breakdown, and an honest timeline.
- 03
Build
Production TypeScript, shipped in increments with demo links every milestone.
- 04
Ship & support
Deployed, monitored, documented, and handed over — with support if you need it.
Discovery → Plan → Build → Ship → Support. I write a clear scope before quoting, send progress with demo links every milestone, and hand over a deployed, documented build.
Full-stack web apps, cross-platform mobile apps (bare React Native and Expo), and AI products — voice/calling agents, chatbots, RAG assistants, and niche AI apps like astrology or trading tools. One developer, full delivery.
Both. Most builds are project-based with a written scope and milestones; I also take ongoing retainers for maintenance, features, and performance work.
I'm based in Mumbai, India and work remotely with clients worldwide — across the US, UK, Europe, the Middle East, and Australia. I keep overlapping hours for calls in your time zone, with daily or weekly written updates so nothing stalls.
Yes — legacy modernization, migrations (PHP→Node, REST→GraphQL), performance rescues, and broken CI are a big part of what I do.
It depends on scope, but I quote project-based with a fixed, written number after a short discovery call — so you know the cost before any work starts. Smaller MVPs and larger multi-platform builds are scoped separately.
Yes — building AI into products is a core part of what I do: chatbots and RAG assistants grounded in your data, voice and calling agents, and MCP servers that connect your tools to Claude, ChatGPT, and Cursor.
Latest writing
Notes from the build
Practical notes on full-stack web, React Native, and shipping AI features.
All writing →- Shipping & ReleaseOct 11, 2026
App Store Rejection Reasons in 2026, and How to Fix Each One
Apple rejected 2.09M submissions in 2025. The App Store rejection reasons that come up most, what each guideline means, and how to fix them fast.
- Building an AppOct 11, 2026
Expo vs Bare React Native in 2026: Which Should You Start With?
Expo vs bare React Native in 2026: what actually differs, when bare still makes sense, and why most new apps should start with Expo.
- Building an AppOct 11, 2026
How Much Does a React Native App Cost in 2026? A Line-by-Line Breakdown
Real 2026 ranges for a React Native app: hours by scope, every line item priced at three rate levels, and the features that quietly double a budget.
- PaymentsOct 11, 2026
KNET Payment Integration for Mobile Apps: A Practical Guide
How KNET payment gateway integration works in mobile apps: bank vs payment provider, the hosted-page flow in React Native, verification and testing.
- Building an AppOct 11, 2026
React Native vs Flutter in 2026: An Honest Pick for Startups
React Native vs Flutter in 2026, compared on hiring, performance, UI, web and long-term risk, with a clear pick for each kind of startup.
Available for new projects
Let's build something people use.
One developer, full delivery: frontend, backend, mobile, and deployment. No handoffs between three contractors.