May 2020 – Jul 2021 · 1 yr 2 mos · New Delhi, Delhi, India · Remote

• Created Watch Along for Android, allowing users to video chat and watch content simultaneously.
• Integrated a remote build cache, and fixed several cache misses to reduce build times and increase build reproducibility.
• Fixed top ANR (Application Not Responding) reports, taking daily ANR-free sessions from 99.4% to 99.8%.
• Wrote multiple design decision documents for the app re-write. I also mentored the team on best practices for multi-module management, and migrating dependency injection from Dagger 2 to Hilt.
• Played a key role in hiring, taking 60+ interviews in my short stint.

Jul 2017 – May 2020 · 2 yrs 10 mos · Gurugram, Haryana, India · On-site

• Led multiple initiatives as part of the Mobile Platform team (2 engineers) to improve modularisation (auth, payments, notifications), build times, developer experience, app health & performance, security.
• Developed a MQTT based SDK (replacing a third party one) for pub-sub operations reducing monthly costs by 95% ($19000 to $900).
• Co-implemented Sushi, the design system powering all Android apps at Zomato.
• Setup CI/CD infra for Android using Github Actions & S3 to automate builds, checks, and release artifacts.
• Worked with Kotlin, MVVM, Architecture Components, Coroutines, Data Binding to develop multiple core features used by millions of people daily.

Jun 2016 – Jul 2016 · 1 mo · Bengaluru, Karnataka, India · On-site

• I mostly worked on the CodeMonk Android app, rewriting a large part to become offline-first. I also got to work on the backend in Django.

Apr 2016 – Aug 2016 · 4 mos · New Delhi, Delhi, India · Remote

• Research project on inter-process communication and content providers in Android. Migrated multiple apps to use a single shared database and networking stack to reduce code complexity, data redundancy, and inconsistency issues.

Jan 2016 – Dec 2021 · 5 yrs 11 mos · New Delhi, Delhi, India · Remote

• Consultant for Paydash, a monitoring tool for block officials overseeing MGNREGA, India's employment guarantee program for rural households.
• Wrote the Android app from scratch and maintained it for six years.
• Occasional maintenance of the website, setting up analytics.
• Wrote and maintained multiple cron jobs, web scrapers, and ETL services that helped policy managers derive insights about the effectiveness of the MGNREGA program.

Dec 2015 – Mar 2017 · 1 yr 3 mos · New Delhi, Delhi, India · Remote

• Freelanced/Mentored while attending college to learn, fund my tuition fees and expenses. Completed 163 sessions/jobs with a 4.9/5 aggregate rating. Some of my reviews -
• "favorite mentor. often available, always patient, and most importantly, knows his stuff!"
• "Great work! Prempal quickly assessed my situation and helped me fix an error in my code. Highly recommend."
• "Prempal is very professional and efficient in the assistance he provides. Having been dubious about online assistance in the past, this experience has most certainly changed my mind. Thanks Prempal"
• "Above and beyond! Once again, Prempal saved me from some serious confusion and wasted time."
• "Very impressed by Prempal. He is very kind, patient and knows his Python. As a beginner, he is taking some of the pain out of the learning process :)"
• "Prempal is the best. He is VERY good at explaining why certain choices were made and the advantages of various approaches - especially for a beginner like me."

Dec 2015 – Jan 2016 · 1 mo · Gurgaon, India · On-site

• I built a web dashboard to monitor the relative performance of the sub-zones/areas Peppertap delivered in.

Nov 2012 – Apr 2013 · 5 mos · New Delhi, Delhi, India · Remote

• While still in school, I started creating quizzes for Contests2Win in my free time. It was great fun getting paid to read Wikipedia articles and creating questions out of them.