SenthilTechSpot

Freelance Mobile App Developer: Design → Build → Publish on App Store & Google Play

Senthil Kumar P

I take your app from Figma to a live listing on the App Store and Google Play — React Native, Node.js backends, AI integrations (Claude, Gemini, GPT). One developer, end to end, for startups and small businesses in the US, UK, Australia and India.

Design Experience Center

Go beyond simple code. Explore how I translate complex logic into Neo-morphism, Skeuomorphism, and Glassmorphism.

Behind the Code

Expertise & Mission

Full-stack developer who ships complete mobile products: UI/UX design, React Native apps for iOS and Android, Node.js backends, AI features, and the App Store / Google Play publishing process. I work remotely with startups and small businesses in the US, UK, Australia and India, and run my own published apps (Traxl, Resona, VenelX) through the same pipeline.

Experience4+ Years
Projects10+ Shipped

Education

B.E in Electronics & Communication
DSIT, Tiruchirappalli

2017 - 2021CGPA: 8.05

Technical Arsenal

NodeJS
NodeJS
ExpressJS
ExpressJS
MongoDB
MongoDB
ReactJS
ReactJS
NextJS
NextJS
React Native
React Native
Firebase
Firebase
SQL
SQL
PostgreSQL
PostgreSQL
Socket.io
Socket.io
Tailwind
Tailwind
Material UI
Material UI
Git
Git
GitHub
GitHub
Figma
Figma
GCP
GCP
Vercel
Vercel
Docker
Docker
Razorpay
Razorpay
Stripe
Stripe

Dev Stack

GitHubFigmaCursorAntigravityClaude CodeGemini CLIVS CodeNodeJSGitDockerPostmanChrome DevToolsAndroid StudioXcodeExpo CLIFirebase ConsoleGCPVercelRenderiTerm2RailwaySupabase

// Constantly evolving.
// Currently exploring: LLM Fine-tuning & Cloud Native.

Let's Synthesize

Connect via LinkedIn Professional Network

Featured Projects

Apps I have designed, built and published to the App Store and Google Play - for clients and as my own products.

Full Stack Developer (client product)

AyuApp - Healthcare AI

Designed, built and published the AyuApp React Native app on Google Play and the iOS App Store from day one of the startup.

AI-powered medical record digitization with OCR, plus voice-based appointment handling for clinics.

Built dashboards for doctors, pharmacies and admins to run the platform end to end.

Integrated image and video capture with backend processing for medical record management.

React Native - [iOS, Android]Next.jsAI IntegrationGCP
Founder & developer

VenelX - CI/CD for Expo & React Native

M4-powered Apple Silicon CI/CD platform for building iOS and Android apps from Expo and React Native projects.

Flat monthly pricing with GitHub-connected pipelines, OTA update publishing, and optional self-hosted workers.

Includes an MCP server so AI assistants like Claude and Cursor can trigger builds and monitor logs directly.

CI/CDExpoReact NativeApple Silicon
Founder & developer

Traxl - Family Location Sharing

Android app that shows family and friends on one shared map, with arrival/departure alerts and a one-tap SOS broadcast to your Circle.

Geofence alerts for home, school and work with quiet hours, trip mode with checkpoints, and multi-day path history.

Battery-friendly background location sharing on a self-hosted Node.js backend; only Circle members see your location.

Per-member drive reports: distance, top/avg speed, halts, active hours and distance-by-day charts.

React NativeGoogle MapsNode.jsGeofencing
Founder & developer

Resona - Self-hosted Music Player

Privacy-first Android music player for personal libraries: auto-discovers Navidrome, OpenSubsonic, Jellyfin, Emby and WebDAV servers over LAN.

Offline downloads, synced lyrics, gapless playback, 5-band EQ with ReplayGain, speed control, sleep timer and voice search.

No analytics, no ads, no accounts - credentials encrypted in Android Keystore. Published on Google Play.

React NativeAudio EngineSubsonic APIJellyfin
Full Stack Developer (client product)

Daply - AI CMS

Architected a multi-tenant CMS with an AI content editor, m3u8 video transcoding and Node.js microservices.

Next.jsNode.jsMicroservicesAI Editor
Co-founder & developer

Suvayam - Authentic Tamil Nadu Snacks

Built a D2C storefront for Suvayam selling handcrafted Manapparai Murukku, a traditional Tamil Nadu snack.

Showcased the brand story, signature product details, and FSSAI-certified quality with a heritage-focused design.

Integrated WhatsApp-based ordering and customer support alongside a blog for brand storytelling.

D2CE-commerceWhatsApp Integration

Have an app idea?

I take it from design to a published listing on the App Store and Google Play - one developer, end to end. Currently taking new projects.

Let's Talk

Contact

Ready to Scale?

Let's build something world-class

I build high-performance products for startups. Whether you need an AI-powered platform or a mission-critical mobile app, I'm here to help.

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