Freelance software developer | AI | Realtime systems
I build voice AI,apps, and backendsystems that ship.
Freelance software developer in India helping startups turn complex product ideas into working Next.js apps, React Native products, and realtime AI systems.
Conversations without the pause.
Speech, reasoning, and response moving through one live pipeline.
Deepgram → GPT → ElevenLabsLive product blueprint
ScrollAbout the work
I turn ambitious ideas into useful products with the engineering depth to make them last.
My best work lives where strong interaction design meets hard technical problems: voice AI, cross-platform products, backend APIs, and systems that never stop collecting data.
Available on Upwork
Raj M.
AI Agent Developer | Voice AI, OpenAI, LangChain, n8n, Next.jsSelected work
Not just screens.
Working systems.
Three case studies that show the product thinking, engineering decisions, and live machinery behind the interface.
Voice AI Agent
Low-latency voice loop with observable service handoff.
A voice agent that keeps the whole conversation moving from first word to natural response without the awkward pause.
Apna Labour
Marketplace UX designed for speed on both sides of the network.
A cross-platform marketplace that helps businesses find dependable skilled labour when the work appears.
Network Monitoring System
Monitoring pipeline built to stay readable under continuous system load.
A monitoring system that turns noisy machine activity into a live, readable operational picture.
Voice AI Agent Case Study
Case study of a realtime voice AI agent built with Deepgram, GPT, ElevenLabs, and WebSockets for low-latency conversation.
Read the case studyApna Labour Mobile Marketplace Case Study
Case study of a React Native marketplace app with a serverless Node.js and AWS backend built for labour matching and mobile product delivery.
Read the case studyNetwork Monitoring System Case Study
Case study of a Windows monitoring system that streams live metrics through ZeroMQ into Go and Java services backed by Postgres.
Read the case studyCapabilities
From first sketch
to shipped system.
Web and mobile products
Polished product experiences backed by reliable APIs, cloud infrastructure, and shipping discipline.
React | React Native | Next.js | AWSVoice AI systems
Realtime conversational agents designed around speed, natural turn-taking, and observability.
Deepgram | GPT | ElevenLabs | WebSocketsBackend engineering
APIs, collectors, queues, databases, and monitoring built to keep working under real production load.
Node.js | Go | Java | PostgreSQLMVP builds and rescue
Focused product delivery for new ideas and thoughtful intervention for codebases that have stalled.
Discovery | Prototyping | Refactors | LaunchVoice AI Developer for Realtime AI Products
Freelance voice AI developer building realtime AI agents with speech-to-text, LLM orchestration, text-to-speech, and production-ready backend systems.
Open service pageNext.js Developer for Startup Websites and Apps
Freelance Next.js developer building fast marketing sites, product frontends, dashboards, and full stack web applications for startups and growing teams.
Open service pageReact Native Developer for Cross-Platform Mobile Apps
Freelance React Native developer building cross-platform mobile apps for startups, marketplaces, internal tools, and MVP launches.
Open service pageBackend Developer for APIs, Data Pipelines, and Systems
Freelance backend developer building APIs, services, collectors, data pipelines, and production systems in Node.js, Go, and Java.
Open service pageWorking together
Four moves.
One clear path.
The path advances on its own. Choose any phase to see exactly what happens, what you receive, and how the work keeps moving.
Phase 01
Find the real problem.
We clarify the user, business pressure, technical constraints, and the smallest outcome worth building.What you leave with
- Problem brief
- Success signal
- Known constraints
What I build
A freelance software developer for startups that need product thinking and execution.
I help founders and teams build voice AI agents, custom web applications, React Native mobile apps, backend APIs, dashboards, internal tools, and MVPs that can be launched and improved quickly.
If you are looking for a Next.js developer, React Native developer, backend developer, or AI app developer in India, this site is a focused overview of how I work and the kinds of systems I ship.
Experience
My path so far
Built through
real constraints.
Independent Software Developer
Remote | Surat, IndiaBuilding voice AI agents, mobile products, and backend systems for founders and product teams.
Java Backend Developer
Motadata | AhmedabadWorked on production APIs and services while learning the operating rhythm of larger software systems.
B.E. Information Technology
SGGSIE&T | NandedBuilt the technical foundation behind the realtime systems and product work I ship today.
"Expert in Next.js and React - a dedicated resource who delivers.
FAQ
Questions people search before they hire.
What kind of software development work does Raj Mehta do?
Raj Mehta builds voice AI agents, Next.js web applications, React Native mobile apps, and backend systems for startups, founders, and product teams.
Is Raj Mehta available for freelance software development projects?
Yes. Raj Mehta is available for new freelance software development projects, including fixed-scope builds, MVP development, and backend or product rescue work.
Where is Raj Mehta based?
Raj Mehta is based in Surat, India and works remotely with teams in India, the US, the UK, and other markets.
Have a project in mind?
Let's make
something real.
Tell meabout it
Start with an email
rajm267747@gmail.comLocal time
--:--:-- ISTSurat, India