Zahidul Islam

Zahidul Islam Email and Phone Number

Principal Software Engineer at Polygon Technology @ Polygon Technology
Zahidul Islam's Location
Dhaka, Bangladesh, Bangladesh
Zahidul Islam's Contact Details

Zahidul Islam personal email

About Zahidul Islam

I'm a passionate software engineer with a focus on both design and development. My journey began in 2014 as a mobile app developer, working with the native Android framework. Since 2020, I have shifted to Flutter for cross-platform app development. Over the years, I've expanded my expertise across various frontend and backend technologies, including Spring-Boot, NodeJs, ExpressJs, NestJs, NextJs, and Laravel. I also have a solid grasp of containerization, CI/CD, and orchestration tools like Docker and Kubernetes.Currently, my role involves leading cross-functional teams, mentoring juniors, and ensuring engineering excellence. I’m well-versed in software principles like OOP, SOLID, DRY, KISS, DDD, and TDD, and I take a strong interest in upholding engineering ethics in every project I work on.Music has always been a passion for me, especially Rock and Folk. I play guitar and enjoy singing. I believe music is a universal language that bridges diverse communities.Looking ahead, my goal is to become a Software Architect—capable of designing efficient, scalable software solutions across any platform or environment. On a personal level, I strive to be a dedicated father to my daughter and an effective mentor to the next generation of software engineers.

Zahidul Islam's Current Company Details
Polygon Technology

Polygon Technology

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Principal Software Engineer at Polygon Technology
Zahidul Islam Work Experience Details
  • Polygon Technology
    Principal Software Engineer
    Polygon Technology Jul 2022 - Present
    Dhaka, Bangladesh
    Develop Android apps following Modern Android Development principles, ensuring 100% compatibility from Android 5.0 to 13. Utilizing cutting-edge Android tools and Google Maps Platform API, developed an app that efficiently displays thousands of dynamic location data from the server, ensuring a seamless user experience. Established a CI/CD pipeline for all mobile projects, resulting in a 30% reduction in overall build time and a 20% decrease in test time. Defined architecture for mobile projects, guided team on state management, dependency injection, and clean architecture, resulting in 50% less complex and 60% more maintainable code. Contributed to the development of REST APIs with the backend team. Developed a notification service using expressJS. Demonstrated notable achievement by attaining an 80% unit test coverage.
  • Sheba Platform Ltd.
    Senior Software Engineer (Android)
    Sheba Platform Ltd. Jul 2019 - Jul 2022
    Dhaka, Bangladesh
    Refactored an Android app from monolithic to modular architecture. That reduced 80% legacy and unreadable code and improved the maintainability by 40%. Implemented caching, leading to a 90% reduction in loading time, and significantly improved startup performance from 15 seconds to just 4 seconds. Used Gradle config and properties to obfuscate keys from penetration testing findings. Addressed all application vulnerabilities identified, achieving 100% resolution. Caching the Flutter engine during app initialization and optimizing method calls and result handling led to an 80% reduction in loading time when transitioning from a native module to a feature in the Flutter module. Managed Google Play Console, using internal, alpha, and beta tests for controlled feature rollouts. Achieved a substantial 75% decrease in post-release critical issues. Led the planning, execution, and optimization of Agile Scrum process including sprint planning, sprint review, daily stand-ups, code reviews, and retrospectives, which uplifted the team productivity to 30%.
  • Ergo Ventures Limited
    Android Developer
    Ergo Ventures Limited Jan 2018 - Jul 2019
    Mohakhali-Dohs, R-22, H-147/B, Mohakhali, Dhaka, Bangladesh
    Developed features in Java using MVP design pattern. Cached 15MB data using embedded SQLite db and updated it in foreground service with broadcast notification. Implemented Google SMS retriever API for otp verification. Managed releases and beta tests with Google Play console.
  • Binary Craft Ltd
    Android Engineer
    Binary Craft Ltd Jan 2017 - Dec 2017
    Dhaka, Bangladesh
    Worked with cross functional teams to do requirement analysis. Define task and estimate possible deadline. Permission handling with marshmallow, OTP auto read, using MVP and mvvm to develop applications. Work with scrum team, managed tasks with Trello.
  • Promopayout Ltd
    Software Developer Android
    Promopayout Ltd Dec 2015 - Jan 2017
    Mohakhali Dohs, Dhaka, Bangladesh
    Develop new features and integration of material design in app. Used Android lollipop, marshmallow and nougat SDK. Learned MVP and developed app with it. Learned to use retrofit and recyclerview. Managed Google play console account along with other developers account e.g., Facebook, Google cloud, Firebase, OneSignal etc.
  • Aapbd
    Junior Software Engineer, Android
    Aapbd Apr 2015 - Nov 2015
    Mirpur Dohs, Dhaka, Bangladesh
    Worked with a cross functional team to Design and develop Android applications. Build apps with Android Jelly Bean, KitKat and Lollipop SDKs and Java programming language on eclipse IDE. Used SVN as version control manager. Developed and deployed an app in play store with expansion file to provide application related data. Worked with volley to implement REST API, learned to use postman.
  • Nevada Soft Bd Ltd.
    Jr Mobile App Developer
    Nevada Soft Bd Ltd. Jul 2014 - Apr 2015
    Mirpur, Dhaka, Bangladesh
    Used eclipse, java and Android SDK to develop debug and build Android applications. Used SQLite to develop an offline transaction logging application. Developed a social media app. Developed a NFC data transfer app. Worked with XMPP protocol for messaging application. Worked on an application with a dynamic UI developed with Java and made some changes in the UI requested by client.

Zahidul Islam Skills

Powerpoint Public Speaking C Jquery Windows Microsoft Sql Server Asp.net Mobile Applications Html Microsoft Office Programming Java Android Xml Microsoft Excel Oop Php Javascript C++ Css Sql Research C# Mysql

Zahidul Islam Education Details

Frequently Asked Questions about Zahidul Islam

What company does Zahidul Islam work for?

Zahidul Islam works for Polygon Technology

What is Zahidul Islam's role at the current company?

Zahidul Islam's current role is Principal Software Engineer at Polygon Technology.

What is Zahidul Islam's email address?

Zahidul Islam's email address is z.****@****hoo.com

What schools did Zahidul Islam attend?

Zahidul Islam attended Ahsanullah University Of Science And Technology, Notre Dame College, Comilla Zilla School.

What skills is Zahidul Islam known for?

Zahidul Islam has skills like Powerpoint, Public Speaking, C, Jquery, Windows, Microsoft Sql Server, Asp.net, Mobile Applications, Html, Microsoft Office, Programming, Java.

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