Waleed Sarwar

Waleed Sarwar

Senior Android Engineer

Accomplished Android Engineer with 7 years of experience, highly regarded for developing android applications that meet and exceed demanding client requirements in a broad range of domains, including e-commerce, recruiting, social networking, and reward-based apps. Sought for superb ability, to solve challenging problems using a combination of industry standard and cutting-edge technologies, delivering clean, well-structured code. Skillset to work compatibly with clients to understand requirements and develop products that exceed quality expectations with on-time delivery.

Stack Overflow


Senior Android Engineer at GudangAda

GudangAda is a leading B2B e-commerce platform that connects manufacturers, wholesalers, and retailers across Indonesia.


  • Charted successful course of automating the new user verification flow in the Marketplace app, reducing the Ops Team’s workload by over 50%.
  • Spearheaded the initiative to A/B test the Marketplace app product selection and store selection screens, securing 13% additional conversions.
  • Led the company’s first Design System library built on Jetpack Compose. Hosted as a private employed by three Android apps.
  • Piloted the integration of the GudanagAda design system library in the Marketplace app, elevating UI development productivity by 53%.
  • Authored a custom Image Picker library that helped reduce crashes tied to picking or capturing images by 98%.
  • Headed the Sales App technical design and implementations, which increased the BD team’s effectiveness by 70% and indirectly boosted the salesperson's productivity.
  • Delivered a practical guide on performing unit testing to achieve 100% code coverage to a team of 4 android engineers.

Engineering Advisor (Part time) at Lumina (YC W22)

Lumina is a fast-growing, first-of-its-kind job community platform for the working class. With its highly engaged community, Lumina helps tens of thousands of SMEs recruit suitable workers


  • Facilitated final Android interviews for 10+ potential Android Engineers and consulted the CTO on hiring decisions.
  • Implemented the architecture of the Lumina App for a team of 4 android engineers.
  • Attained 92% fewer bugs during a critical testing phase by carefully assessing Lumina App’s code and tech design docs.
  • Examined Lumina App’s Home Page lag and recommended potential solutions to secure a 70% performance improvement
  • Spearheaded the Research and Development of Lumina’s In-App Chat features that could support 10k concurrent users with reliability matching WhatsApp.

Senior Software Engineer at STOQO

STOQO is a B2B (Business to Business) platform that aimed to streamline the F&B (Food & Beverages) business supply chain


  • Introduced standards and architecture guidelines for building android applications at STOQO
  • Wrote the base architecture code and reusable modules to be used across different applications
  • Refactored Customer Android App legacy code base to follow architecture and standards guidelines and moved code from Java to Kotlin along with developing new features.
  • Worked as a lead engineer for rewriting the Driver Android App from React Native to Android Native which make the app robust, performant for low end devices in result increases the productivity of drivers and reduced the cost for STOQO
  • Developed native modules for Warehouse Management System App(ReactNative) to integrate with printer and QR Code Scanner and also contributed in developing new features
  • Developed new features for FA App(ReactNative). It’s basically used to get leads by STOQO Field Activators

Software Engineer at Vadion Pvt Ltd

Vadion is a software development company founded in 2011 and headquartered in Finland. They have offices in USA, Germany, and Pakistan and boast a diverse set of skills under one roof.


  • Developed new features and fix bugs in existing android application QforQuran
  • Developed a new Android application as a Lead from scratch 5Pillars. It’s a fun Islamic quiz game to boost Islamic Knowledge with a range of question for all ages and difficulties.

Software Engineer at Global Rescue LLC


  • Suggested and Implemented an Android skeleton project using Clean Architecture.
  • Worked on “Commission Engine” Frontend project. My responsibilities were to integrate AngularJS in static pages and interacts with the back- end server via GRCE public API’s.

Associate Software Engineer at Global Rescue LLC

Global Rescue is the world’s leading provider of medical, security, evacuation and travel risk management services to enterprises, governments and individuals


  • Developed new features for existing android application My Global Rescue.
  • Wrote a common code library, which comprised of all commonly used functions and features for their Android apps.
  • Converted company website into a CMS using OpenCms.


Master in Project Management from Shaheed Zulfikar Ali Bhutto Institute of Science and Technology

Bachelor in Computer Science from National University of Computer and Emerging Sciences


Fluency: Full professional proficiency

Hands-on Expertise

Languages & Frameworks
  • Kotlin
  • Java
Architectural Patterns
  • MVC
  • MVP
  • MVVM
  • MVI
  • Compose
  • Databinding
  • Paging
  • Navigation
  • ViewModel
  • LiveData
  • Room
  • DateStore
  • Hilt
  • CameraX
  • Coroutines
  • Flows
  • Extensions
  • Parcelize
  • Rest API,
  • GraphQL API
  • Location API
  • Google Maps API
  • Geofencing API
  • Geocoding API
  • Facebook SignIn API
  • Linkedin SignIn API
  • Google SignIn API
  • Firebase Cloud Messaging
3rd Party Libraries/SDKs
  • Retrofit
  • OkHttp
  • Dagger
  • Crashlytics
  • Sentry
  • Braze SDK
  • MoEngage SDK
  • MoPub SDK
  • Applovin MAX SDK
Testing Frameworks
  • Junit
  • Espresso
  • Android Studio
  • Intellij IDEA
  • JIRA
  • Github
  • BitBucket
  • Zeplin
  • Figma
  • Linear
  • Quip
  • Slack
  • Scrum


Read blog/articles
  • Medium
  • Reddit
Video Games
  • Tekken7
  • FIFA

© 2022 Waleed Sarwar. All rights reserved.