Web Apps
Ship a fast, polished product your users actually enjoy.
Production React/Next.js apps with clean architecture, great UX, and performance that converts.
- Next.js / React
- Design systems
- Edge & SSR
- Core Web Vitals
OnlineSolo Software Engineer · Remote · Worldwide
I design and ship fast, elegant software — web, platforms, desktop, mobile, and on-chain.
WebPlatformsWindowsAndroidSolanaWeb3RustAPIsAICloud
What I build
One engineer, the whole stack.
From the first line of UI to the program running on-chain — built to a single, consistent standard.
Platforms & APIs
Scale from idea to a multi-tenant platform without rewrites.
Typed APIs, auth, billing, dashboards, and the boring-but-critical infra that keeps it running.
- REST / tRPC
- Postgres
- Auth & billing
- Background jobs
Windows Desktop
Native-feeling desktop tools your team installs and trusts.
Performant Windows applications — from internal tooling to distributable installers.
- .NET / Tauri
- Auto-update
- Installers
- System integration
Android Apps
Reach users on mobile with a smooth, store-ready app.
Android applications built for performance and a clean, modern feel — to Play Store and beyond.
- Kotlin / RN
- Offline-first
- Push
- Play Store
Solana / Web3
Launch on-chain features that are fast, cheap, and trustworthy.
Solana programs and dApps — wallet flows, on-chain reads/writes, and clean web integrations.
- Anchor programs
- Wallet UX
- SPL tokens
- RPC integration
Capabilities
The features modern products are built on.
Beyond the core stack — the high-demand pieces clients keep asking for, built to production standard. Two of them are live below.
AI Agents & Automation
Tool-calling assistants that take real actions, not just chat.
Payments & Billing
Get paid: checkout, subscriptions, and usage-based metering.
Auth & Security
Passwordless sign-in and access control done right.
Realtime & Collaboration
Live presence, multiplayer cursors, and conflict-free co-editing.
Voice AI
Natural, low-latency voice agents that listen and speak.
Search & RAG
Answer questions over your own docs with cited sources.
Dashboards & Analytics
Turn a database into live charts and product insight.
Integrations & APIs
Connect the tools your business already runs on.
Maps & Geolocation
Location, routing, and geospatial data made visual.
Document AI
Extract structured data from PDFs, invoices, and scans.
Performance & SEO
Faster pages, better Core Web Vitals, higher rankings.
Live demos
Two of them, running right here.
An AI agent that calls tools to get work done, and a full checkout flow — the kind of features I drop into products every week.
cobraxai@edge:~$ ./demos --live
AI agent — plans, calls tools, and acts
How I work
A calm, senior process.
Solo means no handoffs, no telephone game — you talk to the person building it.
01
Scope in a call
We pin down the real goal, constraints, and what success looks like — before any code.
02
Ship in slices
Working software early and often, in small reviewable increments you can react to.
03
Measure & hand off
Performance, analytics, and docs so the result is fast, observable, and yours to own.
Tools I reach for
TypeScriptNext.jsReactNodePostgresTailwindThree.jsFramer MotionRust / AnchorSolanaKotlin.NETTauri
Open a channel
Have something worth building?
Tell me about it. I'll reply with a clear, honest take on scope, timeline, and the fastest path to shipping.