Umair Khalid
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Umair Khalid

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Built With & Shipped On
Flutter logo
Flutter
Dart logo
Dart
Android logo
Android
iOS logo
iOS
Kotlin logo
Kotlin
Swift logo
Swift
ASP.NET Core logo
ASP.NET Core
C# logo
C#
SQL Server logo
SQL Server
Figma logo
Figma
GitHub logo
GitHub
Flutter logo
Flutter
Dart logo
Dart
Android logo
Android
iOS logo
iOS
Kotlin logo
Kotlin
Swift logo
Swift
ASP.NET Core logo
ASP.NET Core
C# logo
C#
SQL Server logo
SQL Server
Figma logo
Figma
GitHub logo
GitHub
Production Apps
0

Live on App Store & Google Play

Mobile Experience
0+ Years

Flutter apps for Android & iOS

ASP.NET Experience
0.5+ Years

ASP.NET Core web apps & APIs

Web Platforms
0

SaaS & ASP.NET Core projects

Career Growth & Tech Stack

Languages, frameworks and tools adopted over time

Flutter Flutter
Dart Dart
Kotlin Kotlin
Swift Swift
Android Android
iOS iOS
Android Studio Android Studio
Xcode Xcode
ASP.NET Core ASP.NET Core
C# C#
Blazor Blazor
SQL Server SQL Server
Bootstrap Bootstrap
JavaScript JavaScript
Docker Docker
SQLite SQLite
JSON JSON
Git Git
GitHub GitHub
Figma Figma
Adobe XD Adobe XD
Sketch Sketch
Flutter Flutter
Dart Dart
Kotlin Kotlin
Swift Swift
Android Android
iOS iOS
Android Studio Android Studio
Xcode Xcode
ASP.NET Core ASP.NET Core
C# C#
Blazor Blazor
SQL Server SQL Server
Bootstrap Bootstrap
JavaScript JavaScript
Docker Docker
SQLite SQLite
JSON JSON
Git Git
GitHub GitHub
Figma Figma
Adobe XD Adobe XD
Sketch Sketch

Experience

Senior Flutter & ASP.NET Core Developer
Merik Solution
Nov 2023 – Present
Rawalpindi, Pakistan
  • Own architecture and delivery for multiple production Flutter apps, using BLoC with a repository-based structure that keeps codebases testable and easy to onboard onto.
  • Build ASP.NET Core web applications and REST APIs — MVC, Razor Pages and Blazor front ends on Entity Framework Core and SQL Server, with Identity/JWT authentication and role-based access.
  • Deliver admin panels and dashboards that run alongside the mobile apps, giving clients one developer for both the app and its backend.
  • Lead root-cause diagnosis and resolution of production bugs end-to-end, from crash report to verified fix live on the App Store and Play Store.
  • Technical point of contact for new feature architecture, weighing performance, maintainability and delivery speed.
flutterdartdotnetcorecsharpmicrosoftsqlserverapple
Flutter Developer
SEVEN Koncepts Solution
Jan 2023 – Nov 2023
Rawalpindi, Pakistan
  • Led the migration of a legacy codebase from Flutter 2.0 to Flutter 3.13 without production downtime or feature regressions.
  • Converted Figma, Adobe XD and Sketch designs into pixel-accurate, fully functional UI, working directly with UX/UI designers.
  • Resolved performance bottlenecks (excessive widget rebuilds, unoptimized list rendering) for apps already live on the App Store.
  • Delivered continuous feature updates in sprint cycles alongside product management and QA with minimal regressions.
flutterdartfigmaxd
Flutter Developer
NKU Technologies
May 2022 – Jan 2023
Lahore, Pakistan
  • Built REST API-integrated applications from the ground up, owning testing and debugging ahead of every release.
  • Shipped multiple apps to production on Android and iOS and maintained build automation for repeatable release cycles.
  • Partnered with cross-functional teams to define and ship features, flagging performance and workflow bottlenecks early.
flutterdartandroidgit

Projects

Enterprise
Boeing Grading App

iPad app built for The Boeing Company for CBTA pilot recurrent and instructor training grading — competency-based workflows, assessment history, offline grading with auto-sync and read-and-sign completion.

E-Commerce
Oasis Cart

UAE shopping platform for fashion, electronics, home and beauty with Apple Pay, secure checkout, wishlist, smart search, real-time order tracking and personalized recommendations.

Healthcare
KindaHealth

Doctor & patient telemedicine platform with WebRTC video consultations, appointment scheduling, provider timetable management and dynamic appointment pricing.

E-Commerce
TokShop Live

Live-commerce app with seller-hosted WebRTC live streams, product showcasing and in-app purchase flows.

Social
LB908

Community app for East Long Beach delivering articles, daily videos, news, event calendars, coupons and a local business search engine.

On-Demand
eeziclean

B2C app for Institutional Laundry Service (ILS), a leading UAE commercial laundry provider — order management, tracking and service booking.

On-Demand
Order Noow

UAE food delivery platform built for high concurrency and real-time order tracking during peak traffic.

Enterprise
BAM Brand Monitor

Brand performance analytics dashboard tracking Exposure, Appeal, Interest, Presence, Relevance and Advocacy for C-suite executives and brand managers.

Personal
My Apps & Games

Apps and games I designed, built and published on my own Google Play developer account.

SaaS Web Apps
BookWise Cloud

Multi-tenant online booking platform for service businesses — each business gets its own booking site, services, staff schedules and customer appointments.

SaaS Web Apps
RouteFlow Logistics

Smart logistics and shipment management platform — shipment booking, tracking, routes and delivery operations in one dashboard.

SaaS Web Apps
SupportPilot AI

Multi-tenant AI customer support platform that automates replies and helps support teams resolve customer conversations faster.

ASP.NET Core
HelpDesk Ticket System

Help desk with Admin, Agent and Client portals — SLA tracking, auto-assignment, email-to-ticket, real-time SignalR notifications, knowledge base, reports and 16 languages with RTL support.

ASP.NET Core
Smart School SaaS

Multi-tenant school management SaaS — Blazor WebAssembly front end on an ASP.NET Core Web API with JWT authentication, role-based access and clean architecture.

ASP.NET Core
Online Examination System

Online exam platform for teachers and students — question banks, timed exams with auto-grading, results, and PDF/Excel reports.

ASP.NET Core
Project Management System

Team project management with tasks, bug tracking, teams, calendar views, progress tracking and email notifications.

ASP.NET Core
Food Booking System

Online food ordering website with an admin panel — menu and category management, cart and checkout, order tracking and a live kitchen display.

Highlights

8 Production Apps

Live on App Store & Google Play across healthcare, e-commerce, live-commerce, food delivery and enterprise aviation.

Enterprise Client Delivery

Built the CBTA pilot-training grading app used by The Boeing Company.

First-Submission Store Approvals

Consistently avoids Apple/Google rejection cycles that commonly delay releases.

Real-Time Systems

Shipped WebRTC video consultations and WebRTC live-commerce streaming in production.

Full-Stack Web Platforms

8 web platforms — multi-tenant SaaS and ASP.NET Core apps for help desks, schools, online exams, logistics, bookings and food ordering.

Skills

Languages
DartFlutterC#Kotlin (Android Native)SwiftJavaScript
Web & Backend (.NET)
ASP.NET Core MVCRazor PagesBlazorWeb API / RESTEntity Framework CoreSQL ServerIdentity & JWT AuthSignalR
State Management & Architecture
BLoCProviderGetXRepository PatternClean ArchitectureMVVMOOPDesign Patterns
Mobile Delivery
App Store & Google Play ReleasesIn-App PurchasesPush & Local NotificationsDeep LinkingResponsive LayoutsWebRTCCocoaPods
Backend & Data
REST API IntegrationJSON / XMLSQLiteCore Data
Engineering Practices
Unit TestingDebuggingPerformance ProfilingThreading & ConcurrencyAsync ProgrammingData Structures & Algorithms
Tooling & Collaboration
Git / GitHubDockerVercelFigmaAdobe XDSketchAgile / Scrum

Education

Master of Information Technology (MIT)
University of Management and Technology (UMT), Lahore

Services

CROSS-PLATFORM
Flutter App Development

Production-ready Android and iOS apps from a single Flutter codebase, built on clean BLoC architecture.

From $580
Explore Service
WEB & BACKEND
ASP.NET Core Web Apps & APIs

Admin panels, SaaS platforms and REST APIs with ASP.NET Core, EF Core and SQL Server — including the backend for your mobile app.

From $450
Explore Service
NATIVE FEATURES
Android & iOS Integrations

Kotlin and Swift native modules, in-app purchases, push notifications and deep linking.

From $490
Explore Service
REAL-TIME
Video & Live Streaming

WebRTC video consultations, live-commerce streaming and real-time order tracking.

From $390
Explore Service
UI/UX HANDOFF
Design to Flutter UI

Pixel-accurate, responsive UI from your Figma, Adobe XD or Sketch designs.

From $350
Explore Service
PERFORMANCE
Optimization & Bug Fixing

Crash diagnosis, widget rebuild and list-rendering fixes, and Flutter version migrations.

From $380
Explore Service
LAUNCH
App Store & Play Store Release

Store listing, review preparation and submission — aiming for first-time approval.

From $150
Explore Service

FAQ

Common Inquiries
Frequently Asked Questions
What kind of apps do you build?

Cross-platform Android and iOS apps with Flutter, and web platforms with ASP.NET Core — healthcare, e-commerce, live-commerce, food delivery, SaaS and enterprise apps.

Can you also build the backend and admin panel?

Yes. I build ASP.NET Core web apps and REST APIs with SQL Server, so one developer can deliver both your mobile app and its backend.

Why choose Flutter for my app?

One codebase ships to both Android and iOS with native performance, which cuts cost and time to market.

Can you publish my app to the App Store and Google Play?

Yes. I handle the full release pipeline and prepare builds to pass store review on the first submission.

Can you take over or upgrade an existing Flutter app?

Yes. I've migrated legacy codebases from Flutter 2.0 to 3.13 and fixed performance issues in apps already live.

What is your typical project timeline?

Small apps take 2–4 weeks; larger platforms usually 1–3 months depending on scope.

Do you offer post-launch support and maintenance?

Yes — bug fixes, OS/SDK updates, new features and store updates after launch.

Appointment

Let's build something great together

Have an app idea, a web platform, or an existing app that needs an experienced Flutter & ASP.NET Core developer? Book a discovery call or a consultation session. I usually reply within 24 hours for direct messages.

Schedule an Appointment

Provide your details to get started

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