Beautiful UX. Serious engineering. A simple interface is the byproduct of thoughtful architecture, I like shipping polished experiences without sacrificing correctness or performance.
SwiftUI and native iOS apps with smooth interactions and tight performance budgets.
APIs, auth, storage, AI integration — end to end, production-ready, and maintainable.
Clear priorities, high-signal communication, and shipping in small, safe slices.
Pick a project to explore the problem, solution, and stack — without the wall of text.
Custom iOS keyboard delivering real-time AI writing suggestions powered by LLM services.
Problem
Users needed AI assistance without leaving their typing workflow.
Solution
Integrated LLM APIs directly into a native keyboard extension supported by scalable backend services.
Outcome: Low-latency AI typing experience with scalable architecture.
Fitness app using live camera detection to count push-ups and enable multiplayer challenges.
Problem
Users wanted accurate rep counting and social motivation without wearable hardware.
Solution
On-device Vision framework for pose estimation and rep counting, with Firebase for real-time leaderboards and challenges.
Outcome: Automated workout tracking with real-time engagement.
Batch audio processing application supporting multi-channel workflows.
Problem
Audio professionals needed to process many files with consistent settings and metadata.
Solution
Native macOS/iOS app using AVFoundation for batch conversion and custom waveform UI for preview and metadata.
Outcome: Reduced manual processing time for professional audio workflows.
Room-based multiplayer game with live voting, Firebase syncing, and monetization.
Problem
Client wanted a social, real-time game that could scale and generate revenue.
Solution
Firestore for game state and rooms; Cloud Functions for server-side validation; RevenueCat and AdMob for subscriptions and ads.
Outcome: Scalable multiplayer architecture with monetization.
Ride booking with live GPS tracking, Google Maps, and PayPal payments.
Problem
Drivers and riders needed accurate live location and status updates.
Solution
Socket.IO for real-time events; Google Maps for display and routing; PayPal for payments with server-side verification.
Outcome: Reliable real-time ride coordination.
Device activity monitoring, shield configuration, and family controls with NFC automation.
Problem
Families needed native, privacy-respecting screen time and app controls.
Solution
DeviceActivity and related APIs for monitoring and controls; Firebase for family accounts and subscription state.
Outcome: Secure parental control solution built on native Apple frameworks.
A focused set of tools I’m comfortable shipping with — chosen for reliability, velocity, and UX.
Work that holds up under pressure — reliability, clarity, and UX all matter.
From idea to first release — clear scope, fast iteration, and production-quality code from day one.
Apps and backends that use LLMs, automation, and intelligent features without sacrificing reliability.
Mobile and backend systems built for scale, security, and real users — not just demos.
I take full-stack product ownership from idea to launch. That means defining the product with founders, designing the system, and shipping the mobile app and backend in one flow.
My focus is Python and AI on the backend—FastAPI, LLM integration, and automation—and native iOS with SwiftUI on the client. I use Firebase where it speeds up auth and real-time features, and custom services when the product needs more control.
I’m built for MVPs: clear scope, fast iteration, and production-quality code from day one. I work best with teams that care about product and technical decisions alike, and I’m comfortable owning both.
What founders and teams say about working together.
“Amazing experience working with Arjun! He helped us build a multiplayer mobile game MVP from scratch and did an outstanding job. His expertise in SwiftUI and Firebase is top-notch, and he handled complex real-time features perfectly. What I really appreciated was his communication – he was always available to discuss feedback and implemented changes incredibly fast. He is not just a great coder but also a true professional who cares about the project. We are already planning future updates with him. If you need a reliable and talented iOS developer, Arjun is your guy. 10/10!”
Upwork Client
Rated 5 stars · Upwork
Whether you have a project to build or want a second opinion, I’m happy to talk.
New build, redesign, AI integration, backend, or mobile — share the requirements and I’ll propose a plan.
Stuck on architecture, UX flow, or “what should we build next?” — I’ll help you get clarity.
Schedule a call to discuss your project or get a quick consultation.