Sufyan Anees, Developer in Islamabad, Pakistan
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Sufyan Anees

Mobile Software Engineer and Developer

Islamabad, Pakistan

Toptal member since July 15, 2026

Bio

Sufyan has spent 16 years building mobile solutions across enterprise mobility and cloud-connected applications. His toolkit centers on Flutter, Swift, and Kotlin. While at InterServer USA, Sufyan led the end-to-end development of a cross-platform mobile application.

Portfolio

InterServer USA
Flutter, Objective-C, Dart, REST APIs, GitHub, Software Engineering, Gemini...
Exceed Gulf (StemeXe)
Objective-C, Swift, Flutter, Dart, REST APIs, Kotlin, Figma, iOS...
TEO International
Objective-C, Swift, Core Data, REST APIs, iOS, Apple Push Notifications...

Experience

  • Objective-C - 16 years
  • iOS - 16 years
  • REST APIs - 12 years
  • Swift - 8 years
  • SwiftUI - 6 years
  • Kotlin - 4 years
  • Dart - 3 years
  • Flutter - 3 years

Preferred Environment

Agile, Git, Android, REST APIs, iOS, Flutter, PHP, Xcode, Android Studio, Cursor AI

The most amazing...

...application I've built is the InterServer Mobile application, which I led from architecture to deployment for both iOS and Android platforms.

Work Experience

Lead Mobile Software Engineer

2025 - 2026
InterServer USA
  • Spearheaded the end-to-end development of the InterServer Mobile application using Flutter.
  • Defined application architecture, coding standards, and development roadmap.
  • Implemented UI/UX, back-end integrations, testing, deployment, and optimization.
  • Published and maintained applications on the App Store and Google Play.
  • Collaborated with cross-functional teams to achieve business goals.
Technologies: Flutter, Objective-C, Dart, REST APIs, GitHub, Software Engineering, Gemini, Android, Mobile Development, Native Mobile Apps, Problem Solving, React Native, Web App Development, Xcode, Android Studio, Auth0, HTML

Principal iOS Software Engineer

2015 - 2025
Exceed Gulf (StemeXe)
  • Managed and mentored mobile development teams who work under me.
  • Conducted requirement gathering and technical analysis.
  • Prepared estimations and resource allocation plans.
  • Guided client meetings online and Agile project execution.
  • Managed multiple project streams, ensuring successful delivery.
Technologies: Objective-C, Swift, Flutter, Dart, REST APIs, Kotlin, Figma, iOS, Apple Push Notifications, Geolocation, Maps, Mobile App Development, Payment APIs, TestFlight, Node.js, Software Engineering, Full-stack Development, Apple Watch, Instagram, Instagram API, Push Notifications, Mobile Development, Native Mobile Apps, Google Maps API, Stripe, Supabase, Google Maps, Amazon Web Services (AWS), AI Product Management, Technical Leadership, Google Workspace, Atlassian, Jira, Jira Administration, Slack, Firebase Cloud Functions, Leadership, Training, Problem Solving, App Intents, WidgetKit, iOS Native Libraries, React Native, Large Language Models (LLMs), Web App Development, Android Studio, Streaming, Video Streaming, Auth0, Payment Gateways, HTML

Principal Software Engineer

2011 - 2015
TEO International
  • Gathered and analyzed requirements shared by clients.
  • Prepared project estimates and sprint plans for development.
  • Led junior developers and mentored team members to improve productivity.
  • Managed Agile development lifecycle in my team and conducted stand-up meetings.
  • Delivered solutions for international clients as per the requirements.
Technologies: Objective-C, Swift, Core Data, REST APIs, iOS, Apple Push Notifications, Geolocation, Maps, SQL, Payment APIs, Subscriptions, TestFlight, User Experience (UX), Firebase, Node.js, Software Engineering, Sports, Wearables, Google Maps API, Stripe, Google Maps, Google Workspace, Atlassian, Jira, Jira Administration, Slack, Firebase Cloud Functions, Web Development, Bitbucket, Front-end, Problem Solving, iOS Native Libraries, Web App Development, Streaming, Video Streaming, Auth0, Payment Gateways

Mobile and Web Architect

2008 - 2011
Axact Pvt Ltd
  • Designed SaaS architectures and enterprise systems.
  • Conducted performance evaluations and appraisals of peer members.
  • Oversaw implementation and product delivery for better results.
  • Managed customer feedback, enhancements, and delivery changes on time.
Technologies: ASP.NET, Objective-C, Core Data, REST APIs, SQL, Web Development, Education Technology (Edtech), Problem Solving, Web App Development

Software Engineer

2007 - 2008
Mechatronix
  • Developed software solutions and enterprise applications.
  • Participated in design, coding, testing, and deployment.
  • Provided support and performance optimization of systems.
Technologies: C#.NET, Databases, SDKs, Desktop App

Experience

StemeXe App

https://apps.apple.com/us/app/stemexe-app/id1502529266
StemeXe is a solution that can be customized for any organization that requires a beautiful, usable mobile app in record time. Besides being easy to use and beautiful to look at, StemeXe has the following features: private announcements, request approval, a knowledge base, a team member chat, and activity management.

InterServer Mobile Application

https://apps.apple.com/us/app/interserver-mobile/id992766525
InterServer Mobile, available for free, allows you to quickly provision and manage our cloud VPS hosting service. You can provision new instances on the fly right off your mobile device. In addition, the application allows you to check the status, reboot, start, and stop your VPS instances. It is developed in Flutter (Dart) and consumes REST APIs to communicate with the server.

LedgersApp

https://play.google.com/store/apps/details?id=com.gbs.ledgersapp
LedgersApp is a simple and powerful business ledger application designed to help businesses manage customer and vendor accounts with ease. Whether you run a small shop, trading business, service company, or growing enterprise, LedgersApp helps you keep your financial records organized and accessible anytime, anywhere.

Curaporta | Family Health AI

https://apps.apple.com/us/app/curaporta/id6785185856
Connect symptoms, Apple Health, and family history into one health picture.
Most people guess when their doctor asks about family health history. Curaporta ends the guessing. Curaporta is the 1st health app that connects three things no other app brings together: your symptoms, your Apple Health data, and your family's health history, all in one private, secure place.

Most health apps track one thing. Curaporta connects three:

• Symptoms: log how you feel, in your own words, anytime.
• Device data: Apple Health metrics synced automatically: heart rate, sleep, steps, HRV.
• Family history: connect with biological family members and see anonymized hereditary patterns.

Our AI brings all three together to help you understand patterns in your health that no single source could ever reveal on its own.

AI Art Affirmations | I affirm

https://apps.apple.com/us/app/curaporta/id6785185856
The only daily affirmation and motivation app that you need. Empower yourself by affirming your goals and dreams. The I Affirm app has got you covered.

• Read through tons of affirmations.
• Add widgets to your home screen.
• Siri reads affirmations to you.
• Write your own affirmations.
• Save or share affirmations.
• Save your favorite affirmations.
• Create collections to group affirmations how you like.
• Filter affirmations by category.

Fintech - A Perfect Fifth App

https://apps.apple.com/pk/app/a-perfect-fifth/id1313172235
A Perfect Fifth is a fintech digital wallet application developed using Swift for iOS and Node.js for the back end. The platform enables users to securely manage digital wallets, perform financial transactions, and access payment services through a seamless and intuitive mobile experience. The back end is hosted on DigitalOcean, leveraging scalable cloud infrastructure, secure REST APIs, and a reliable server architecture to ensure high performance, security, and availability.

Education

2009 - 2011

Master's Degree in Software Engineering

Bahria University - Islamabad, Pakistan

2003 - 2007

Bachelor's Degree in Software Engineering

Bahria University - Islamabad, Pakistan

Skills

Libraries/APIs

Google Maps API, Stripe, Google Maps, iOS Native Libraries, REST APIs, Node.js, Instagram API, Apple Subscriptions

Tools

Git, TestFlight, Xcode, Android Studio, Atlassian, Jira, Slack, Bitbucket, ChatGPT, Auth0, Apple Push Notifications, GitHub, Claude Code, Claude, Google Workspace, Figma

Languages

Swift, Objective-C, Kotlin, Dart, HTML, HTML5, JavaScript, PHP, SQL, C#.NET

Frameworks

Flutter, SwiftUI, StoreKit, UIKit, App Intents, WidgetKit, React Native, OAuth 2, Core Data, Combine, ASP.NET

Paradigms

Real-time Systems, Mobile Development, Cross-platform, Model View ViewModel (MVVM), HIPAA Compliance, Offline-first Development, Microservices, Agile

Platforms

iOS, Mobile, Android, Firebase, Apple Watch, Amazon Web Services (AWS)

Storage

SQLite, MySQL, Databases

Industry Expertise

Project Management

Other

Software Engineering, Maps, Mobile App Development, API Integration, App Store, Artificial Intelligence (AI), Online Payments, AI-assisted Development, Full-stack Development, API Management, Social Networks, Architecture, Push Notifications, Minimum Viable Product (MVP), Cross-platform App Development, Native Mobile Apps, Code Review, APIs, Back-end Development, Cursor AI, CTO, SaaS, Product Planning, Software Architecture, Software as a Service (SaaS), Technical Leadership, AI Automation, Delivery Management, Jira Administration, Firebase Cloud Functions, Leadership, Technical Architecture, Training, Education Technology (Edtech), Front-end, Lovable, Problem Solving, Product Management, App Store Acceptance Process, Deep Linking, Large Language Models (LLMs), Mobile Apps, Web App Development, Scalability, Streaming, Video Streaming, Webhooks, Payment Gateways, Geolocation, Payment APIs, Payments, Subscriptions, User Interface (UI), User Experience (UX), Gemini, Full-stack, Back-end, Instagram, Sports, Wearables, Supabase, AI Product Management, Standard Operating Procedures Development, Web Development, Platforms, CI/CD Pipelines, Software Development, Data Structures, Programming, Mathematical Logic, SDKs, Desktop App

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