- Security
- Mobile
- Enterprise
Passkey / FIDO2 Authentication SDK
Passwordless auth running inside Pakistan's largest digital banking app
- Kotlin
- React Native
- Node.js
- Prisma
Available for freelance projects
Hi, I'm Mubashir AliI build web, mobile & AI products.
Senior full-stack engineer in Karachi. I own the whole feature: database, API, web or mobile app, and the deploy. Today I lead a passkey platform inside Pakistan's largest digital banking app.
- 100% Job Success on Upwork
- Rising Talent
- Building since 2019
Leading engineering atFortanixor TechnologiesIn production at a bankPasskeys, FIDO2
Tools I ship with
ReactJS
NextJS
React Native
NodeJS
ExpressJS
ASP.NET 8
PostgreSQL
MongoDB
Android (Kotlin & Java)
Kotlin
TypeScript
C#
Python
Redis
Git
Docker
AWS ECS
Selected work
Products I've designed, built and shipped
For clients and teams, from bank-grade authentication to AI learning tools.
- Mobile
- IoT
Fleet Telematics App
Live vehicle tracking and trip replay
- React Native
- TypeScript
- React Native Maps
- TanStack Query
- Projects shipped
- 100+
- Clients, from startups to large enterprises
- 50+
- Job Success on Upwork
- 100%
What I do
One engineer across the whole stack
A feature ships without waiting on several people.
Mobile
React Native apps for iOS and Android with Expo or the CLI, and native Android in Kotlin. Offline-first, maps and GPS tracking, push, deep links, biometrics, payments, store submissions.
- React Native
- Expo
- Kotlin
- Swift
Web
SaaS platforms, billing systems, marketplaces and admin tools built with React and Next.js, plus a reusable admin-panel template that turns new dashboards around in hours.
- Next.js
- React
- TypeScript
- TanStack Query
- Tailwind
AI and automation
RAG over private documents, agents with typed tools, multi-model routing with fallbacks, voice and transcription, plus the webhooks, jobs and pipelines that remove repetitive work.
- OpenAI
- Anthropic
- Gemini
- Qdrant
- Python
Backend
REST APIs, JWT and OAuth, real-time with WebSockets, background workers and payment integrations, deployed with Docker on AWS ECS or a Linux VPS behind Nginx.
- Node.js
- ASP.NET Core
- PostgreSQL
- Redis
- Docker
Security
Passwordless authentication with FIDO2, WebAuthn and passkeys: Android Keystore, server-side challenge verification, attestation parsing, device fingerprinting and risk detection.
- FIDO2
- WebAuthn
- Passkeys
- Android Keystore
- Ask me
Not sure where yours fits?
Describe the problem. I'll tell you honestly whether I'm a good fit and how I'd approach it.
Experience
Where I've been building
Building software since 2019.
Software Development Lead
Fortanixor Technologies
Current2025 to Present
Senior Full Stack Engineer
Bits Collision
2022 to 2024Full-Stack & Mobile Engineer
Freelance - Direct Clients
Current2019 to Present
Client words
100% Job Success on Upwork
Verbatim from completed jobs.
“All i can say is WOW. I have been so lucky to meet Mubashir, what an excellent guy. His skills for the job i had were perfect…”
“Hired Mubashir for the second time, he did everything on time with a high quality code…”
“Been hiring Mubashir several times, still giving him 5 stars until now!”
“Mubashir is professional and knows what is he doing! Recommended !”