Karan Trehan

Software Engineer currently working with Android

Hello there! I am Karan.

I have been building softwares since 2012 and have a deep interest in Android; having designed, architected, tested and maintained innumerable Android projects. I have also closely worked with server teams to help them backend systems and develop APIs.

Nowadays I try to give back, as much as possible, to the amazing tech community through conferences, meetups, open-source contributions, talks and mentorships.

Talk to me about Android, Mobile or Technology in general!

Interests

Writing

Development

Community

Employment

Current

Gojek

Engineering Manager - Mobile

March 2021 - Present • Remote

Leading & managing the Discovery pod at Gopay (GoTo Financial)
Working with the team in evaluating new frameworks to build apps in
Working on standardizing the mobile interview process across gojek and gopay

Team Lead - Android

June 2020 - February 2021 • Remote

Lead the consumer pod Android team
Lead the team in integrating an online bank in the Gojek app
Lead the team in rebuilding Transaction history for Gopay
Also participated in a standardizing the Android interview process at Gopay

Product Engineer : Android

January 2020 - June 2020 • Bengaluru, India

Working with the GoPay mobile team
Developed a currency helper for usage across all Gojek products
Developed the GoPay Home Bar

Past

Pepperfry

Senior Android Developer

June 2018 - December 2019 • Mumbai, India

Responsible for developing features for the consumer app with 50K daily active users at that time
Designed and led the Kotlin + MVVM migration of the app
Setup & contributed to the official tech blog
Led the AR experiments for the organization using ArCore
Led the design and development of the internal analytics system on mobile
Led the migration of the orders features on the Android app
Developed the Gift registry module on the Android app
Developed the omnichannel module on the Android app
Developed the support module on the Android app

Udacity

Mentor

May 2017 - December 2018 • Remote

Classroom mentor for the Android Basics Nanodegree and Android Development programs.
Mentoring students for concepts, strategies, projects and the philosophy of Android development.

m.Paani

Senior Android Developer

April 2016 - June 2018 • Mumbai, India

Leading the development, testing and maintenance of all the Android solutions provided by the organization
Led & designed the offline-first development approach
Rearchitected the app from scratch to support low-end devices
Led the development of POS extension SDKs
Led the design of the autentication system rewrite
Created Android Studio templates to easily create glued components for screens
Developed an mSwipe extension app

SKCS LLP

Director : Innovative Technologies

January 2014 - March 2016 • Mumbai, India

Led the marketing and development efforts for the organization
Helped with sales as well as R&D
Led a team of 4 developers working on backend APIs and Android development
Led the development of POS extension SDKs
Developed systems for pharma, education, sports, voice, sports & security

SKCS LLP

Partner

November 2012 - March 2016 • Mumbai, India

Developed systems for internal products
Helped in Sales and R&D

Swapnil Karekar

Education Technology Developer

November 2012 - October 2013 • Mumbai, India

Developed websites for educational institutions using Joomla

Community

Co-Organizer - GDG MAD

March 2018 - December 2020 • Mumbai, India

Helped the organizing team put together events for the tech community in Mumbai
Hosted multiple events like panels, webinars, etc
Hosted multiple roundtables where the entire audience would share ideas

Open Source

Article

Action Handling On Android: A ‘GoPay Social’ Case Study

Technical details of the Android implementation for interactions on our social flows.

Article

Rx vs Coroutines: Complex network chains on Android

Comparitive post on writing complex network chains on Android using Rx and Coroutines

App

Starwars - Showcase App

A sample modular Android app written in Kotlin using Rx, Koin, Coroutines and Architecture components

Fork Now

Article

Kotlin Migration @ Pepperfry: Part Three - Learnings

Learnings from the ongoing MVVM + Kotlin migration @ Pepperfry.

Article

Kotlin Migration @ Pepperfry: Part Two — Process

Process behind the MVVM + Kotlin migration @ Pepperfry for a better developer experience.

Article

Kotlin Migration @ Pepperfry: Part One — Motivation

Motivation behind the MVVM + Kotlin migration @ Pepperfry lead by me.

Article

The non-code aspects of us programmers

A look at the non-code aspects which make us great programmers and better persons.

Article

To Synk or not to Synk

A guide to intelligent syncing of data in your offline-first Android apps to makes sure your app does not make repeated calls

Repo

Android @ Google I/O 2018

A repo summarizing all the important Android related launches, talks, discussions at the Google I/O 2018

Fork Now

App

Posts - Showcase App

A sample Android app using Kotlin, Dagger 2, RxJava, RxAndroid, Retrofit with a modular setup...

Fork Now

Talk

Writing a modular project on Android - Talk

@ MADMeetup - Feb, about the need and process for modularizing an Android app.

View Slides

Article

Writing a modular project on Android - Article

A guide to writing a modular Android app with Posts as the core example

Article

Effective Networking On Android

A guide to effective networking on Android using Kotlin and Retrofit

Talk

GDD India - Reliving the days

@GDGMumbai GDDExtended, to help people understand what happened there off the camera & the feeling of being there.

View Slides

Talk

Google Certifications - Be Distinct!

@ GDGMumbai DevFest, to promote various benefits and perks of being Google certified.

View Slides

Talk

Recap of the Google IO 2017

@ MADMeetup June, to recap Google I/O 2017 from a user as well as developer point of view with concentration on Android.

View Slides

Get In Touch

Twitter

@karntrehan

Location

India

Email

karntrehan+website @ gmail dot com