Osama Mumtaz
Available for new opportunities

Osama Mumtaz

Technical Product Manager & Sr. Software Engineer

I sit at the intersection of product and engineering — leading teams, shaping roadmaps, and still writing code when it matters.

  • —Leading Android, QA, design & AI teams at Funsol
  • —Built & scaled utility apps across the Play Store
  • —BS Software Engineering, COMSATS Islamabad
Based in Islamabad, PakistanAt Funsol Technologies

7+

Years in mobile

50+

Apps shipped

40+

Engineers led

5+

Teams managed

KotlinAndroidComposeProductFirebaseAI

Technical Product Manager & Android Developer · Islamabad, Pakistan

I build Android apps that scale - and teams that deliver.

From product vision to Play Store launch, I help founders and companies ship Android apps with clarity, speed, and craft.

Get in touchView experience →
 

Introduction

Overview

Technical Product Manager and Sr. Software Engineer with 6+ years in mobile development — leading cross-functional teams and shipping products that scale.

Technical Product Manager

Sr. Software Engineer

Mobile App Engineer

Backend & DevOps

 

Career

Work Experience

Roles where I've led teams, shipped products, and driven growth.

Sep 2023 - Present

Funsol Technologies

Technical Product Manager

Funsol Technologies

  • Leading and managing multiple cross-functional teams, including Android Developers, SQA Engineers, UI/UX Designers, Python Developers, Web Developers, AI Engineers, and DevOps Engineers.
  • Driving innovation, system design, and scalability while optimising user experience and revenue strategies.
  • Implemented strategic AdMob monetisation techniques to maximise revenue while ensuring compliance with Google policies.

Oct 2021 - Sep 2023

Funsol Technologies

Team Lead

Funsol Technologies

  • Led the Android development team, overseeing the architecture, feature implementation, and code reviews.
  • Spearheaded the development and optimisation of multiple high-performing utility apps.

Aug 2020 - Oct 2021

Funsol Technologies

Android Developer

Funsol Technologies

  • Developed and optimised Android applications, improving user engagement and retention through performance enhancements.
  • Integrated third-party APIs, Firebase services, and in-app purchase models to enhance app functionality.
  • Ensured best coding practices by following MVVM, Clean Architecture, and SOLID principles.

Jan 2020 - July 2020

Rapidev DMCC

Jr. Android Developer

Rapidev DMCC

  • Developed and maintained Android applications using Java and the Android SDK.
  • Collaborated closely with cross-functional teams to design and implement robust features.

Nov 2019 - Jan 2020

EServeMD

Web Developer Intern

EServeMD

  • Contributed to the development and maintenance of the company's portal system using HTML, CSS, and PHP.
  • Ensured a responsive and user-friendly interface.

Mar 2018 - Jan 2021

Self Employed

Freelance Android & Web Developer

Self Employed

  • Began as a freelance web developer before transitioning into Android app development.
  • Designed and developed scalable mobile applications and implemented backend solutions with RESTful APIs using PHP & Python.
 

Academics

Education

Foundation in software engineering that shaped my technical career.

Comsats University, Islamabad

BS Software Engineering

Comsats University, Islamabad

2016 - 2020
 

Stack

Technologies

Tools and frameworks I use to build and ship mobile products.

Kotlin

Kotlin

Java

Java

Python

Python

JavaScript

JavaScript

HTML 5

HTML 5

CSS 3

CSS 3

Django

Django

Firebase

Firebase

PostgreSQL

PostgreSQL

MySQL

MySQL

MongoDB

MongoDB

Docker

Docker

Android Studio

Android Studio

Figma

Figma

Git

Git

 

Portfolio

Featured Projects

Real-world products I've built and scaled — from AI-powered mobile apps on the Play Store to tools on the web.

Turbo Shield VPN - Fast & Secure VPN — app screens

Turbo Shield VPN - Fast & Secure VPN

An Android VPN client built around leak protection and transparency rather than a single connect button. Smart Connect picks the fastest server automatically, while the full server list shows real-time load and latency per location and can be filtered for OTT streaming, gaming or standard use. The settings expose the controls that actually keep a tunnel honest — a kill switch that holds the tunnel open while reconnecting, IPv6 blocking so traffic can't route around an IPv4-only tunnel, privacy-focused Cloudflare DNS, Android-level always-on VPN, split tunnelling and connect-on-launch. A live stats screen graphs throughput, latency, VPN IP and protocol as you browse, and every session ends with a recap of time connected, bandwidth used and whether any leaks occurred.

androidvpnopenvpnprivacy
ReelstoMP4 - Facebook Reels & Video Downloader — app screens

ReelstoMP4 - Facebook Reels & Video Downloader

A free web tool that turns a Facebook link into an MP4 — paste the URL of a public reel or video and save it in HD straight to a phone or PC, with no app to install, no signup and no data stored. It works with both facebook.com and fb.watch links, places no cap on downloads, and ships light and dark themes plus multi-language support alongside Features, How-to and FAQ pages.

web-appfacebookvideo-downloaderno-signup
GeoPromptTracker - GEO Toolkit for AI Search — app screens

GeoPromptTracker - GEO Toolkit for AI Search

A free toolkit for Generative Engine Optimization — making sure ChatGPT, Claude, Perplexity and Google AI Overviews can find, read and cite your site. It bundles 19 no-sign-up tools, including an llms.txt generator, a FAQPage JSON-LD schema generator, and an AI-Readiness Audit that scores any URL against the technical signals that matter for AI visibility, in the spirit of a Lighthouse report but scoped to GEO/AEO. Alongside the tools sits a maintained directory of 28 AI crawlers explaining what each bot does, whether it actually respects robots.txt, and the copy-paste rules to allow or block it — plus 38 long-form guides.

GEOAI Searchllms.txtJSON-LD
sssxdown - X (Twitter) Video Downloader — app screens

sssxdown - X (Twitter) Video Downloader

A free web tool for saving public videos and GIFs from X (formerly Twitter) — paste a post link and download in a couple of clicks, with no login, no watermark and nothing stored server-side. It handles several links at once, ships a light and dark theme, and is localised into multiple languages. Supporting pages cover how-to steps, an FAQ, release notes and a privacy policy, and the whole tool stays free through a single unobtrusive ad placement.

web-appvideo-downloaderi18nno-login
 

Social proof

Testimonials

What colleagues and leaders say about working with me.

“

Osama is working with us as a Team lead (android). He manages his team activities, projects & guides them to complete their tasks on time. Osama is talented,...

Photo of Tanvir Ahmed

Tanvir Ahmed

CEO · Funsol Technologies

“

I wholeheartedly recommend Osama as a remarkable software developer with exceptional coding skills. His proficiency is not only evident in his coding abilities...

Photo of Sarosh Khalid

Sarosh Khalid

COO · Rapidev DMCC

“

I wholeheartedly recommend Osama Mumtaz, Product Manager at Funsol Technologies, for any organisation seeking a talented and versatile professional. Osama...

Photo of Hammad Farooq

Hammad Farooq

CTO · Funsol Technologies

“

Osama is extremely versatile and, from my personal experience, extremely driven as well. He is an expert in android apps crafting and how to become a great...

Photo of Hannan Shahid

Hannan Shahid

Technical Product Manager · Funsol Technologies

“

Working alongside Sir Osama as my current project manager has been a joy. His quick thinking, problem-solving abilities, and expertise in mobile application...

Photo of Zunaira Hashmi

Zunaira Hashmi

UI/UX Designer · Funsol Technologies

“

Osama has always been industrious, keen, highly professional and a valuable colleague. His zeal, energy and willingness to embrace challenges is something that...

Photo of Sania Sana

Sania Sana

HR · Funsol Technologies

 

FAQ

Frequently asked questions

What people usually want to know before getting in touch.

Osama Mumtaz is a Technical Product Manager and Senior Software Engineer based in Islamabad, Pakistan, with 7+ years in mobile. He leads Android, QA, design and AI teams at Funsol Technologies, and works across both sides of the job — owning product roadmaps while still writing production code. He has shipped 50+ apps to the Google Play Store and led 40+ engineers.

Yes. He takes on Android and cross-platform app builds, technical product management for mobile products, engineering team leadership, and Play Store launch and monetisation work. The fastest way to start a conversation is email at osamamumtaz96@gmail.com or WhatsApp at +92 318 5297392 — he typically replies within 24 hours.

Android in Kotlin and Java, Jetpack Compose and Compose Multiplatform for cross-platform work, and Firebase for backend services. Beyond mobile he works with Python, Django, JavaScript, PostgreSQL, MySQL, MongoDB and Docker, and integrates AI features into both mobile and web products.

Yes. SnapLingo, an AI-powered language learning app for children, is built in Compose Multiplatform — a single Kotlin codebase serving both platforms. For projects where a shared codebase makes sense, this cuts duplicated work without giving up native performance.

Both. Alongside Play Store apps he designs and ships web products, including GeoPromptTracker (a toolkit for AI search visibility), ReelstoMP4 and sssxdown. His background started in web development before he moved into Android, so he is comfortable across the stack.

He has led 40+ engineers across 5+ teams. As Technical Product Manager at Funsol Technologies he runs cross-functional groups spanning Android, SQA, UI/UX, Python, web, AI and DevOps, and was previously Android Team Lead there, owning architecture, delivery and code review practice.

He is based in Islamabad, Pakistan, and works remotely with clients in other time zones. Email, LinkedIn and WhatsApp are all open channels for an initial conversation.

He has taken utility apps from launch to scale on the Play Store and implemented AdMob monetisation strategies built to maximise revenue while staying inside Google's policies — a distinction that matters, since policy violations can pull an app's revenue or listing entirely.

 

Contact

Let's work together

Have a product idea, role, or collaboration in mind? Send a message — I typically reply within 24 hours.

Direct channels

Prefer reaching out directly? Use any of these — I'm happy to connect.

Email

osamamumtaz96@gmail.com

LinkedIn

osamamumtaz01

WhatsApp

+92 318 5297392

Osama Mumtaz

Technical Product Manager · Islamabad

© 2026 Osama Mumtaz. All rights reserved.