Tejashwadeep Jha profile photo 1 on Tal

Tejashwadeep Jha

SWE @ PhonePe | Ex - Mercari Inc. 🗼, Cisco | Expert @ Codeforces, Guardian @ Leetcode | Android, Distributed Systems, Backend, Competitive Programming

Bengaluru

3+ years of work experience

PhonePe
Jul 20251 yr 2 mosPresent

Bengaluru

- Developed Indus-Arena, an instant-play gaming feature from the ground up, building a fully dynamic and responsive UI with Jetpack Compose and implementing a scalable MVI architecture. - Engineered a high-performance video delivery system by implementing strategic caching and preloading, slashing data consumption by over 82% (from 700MB to 120MB) and drastically reducing playback buffering for a seamless user experience. - Enhanced feature stability and enabled data-driven improvements by writing comprehensive unit tests to ensure code quality and setting up a detailed analytics pipeline to monitor user engagement and performance. www.indusappstore.com
Cisco
Feb 20255 mosJun 2025

Bengaluru, Karnataka, India

- Building Cygnus, Cisco’s first unified, plug-and-play, config-driven CI/CD platform that standardizes and automates the validation and deployment of all networking operating systems used across Cisco devices, ensuring consistency, efficiency, and scalability. - Implemented a fully parameterized downstream job for ISO builds, improving modularity, code quality, and scalability. – Reduced CI resource usage by ~37%, parallelized test execution across testbeds, and automated test report feedback to PRs, streamlining developer workflows.
Mercari, Inc.
Dec 20243 mosFeb 2025

Tokyo, Japan

- Started by fixing a UI issue affecting Tablet and Foldable devices. While investigating, found more bugs, raised tickets, and fixed them — making the app more reliable across different screen types. - Worked on multiple high-priority (P0) bugs related to Okihasso. - Got tired of fixing UI issues, so picked up some technical debt. Refactored old unit tests from an outdated coroutine version to Kotlin Coroutines 1.9.0, cleaned up unnecessary test fixtures, and learned about unit testing in the process. - Redesigned the shipping method selection flow for Low-Cost Carriers (LCC) on the seller side. Spent a week brainstorming and planning, proposed a new approach to the team, implemented it behind a feature flag, and wrote tests to ensure everything worked smoothly.
Cisco
Jun 20243 mosAug 2024

Bengaluru, Karnataka, India

– Refractored legacy CGI scripts from Perl to Python, reducing code lines by 50% and making it more scalable and efficient. – Enhanced the UI/UX of the tool using Javascript and CSS. Added real-time telemetry and a PING feature to ensure IP addresses are active before executing scripts, all managed through a Flask backend server. – Built a switch health monitoring system using Elasticsearch as the database for storing time-series data, Telegraf to establish a gRPC connection with switches and stream data to the database, and Grafana for visualization, all containerized in Docker for easy deployment and scalability, and hosted on a ubuntu based virtual machine.
Developers & Coders Club
Aug 20238 mosMar 2024

Developers & Coders Club
Nov 202211 mosSep 2023

Tejashwadeep’s AI Stack

codex
codex
opencode
opencode

Education

National institute of technology Agartala

Bachelor of Technology - BTech, Electrical Engineering

National institute of technology Agartala

20214 yrs2025

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Headline

SWE @ PhonePe | Ex - Mercari Inc. 🗼, Cisco | Expert @ Codeforces, Guardian @ Leetcode | Android, Distributed Systems, Backend, Competitive Programming

About

I’m Tejas, a software engineer currently at PhonePe, working on the Indus Appstore (India's homegrown alternative to the Play Store). I’ve worked across infrastructure, backend, and android. I enjoy building well-architected systems, tools that make developers faster, and infrastructure that holds strong under pressure. TLDR; i have a bunch of skills and I change them according to my mood and job requirements (︶‿︶) (:chill_relaxed_energy)

Location

Bengaluru

AI stack

codex

opencode

Work experience

Software Engineer at PhonePe, Jul 2025 - Present · 1 yr 2 mos, Bengaluru, - Developed Indus-Arena, an instant-play gaming feature from the ground up, building a fully dynamic and responsive UI with Jetpack Compose and implementing a scalable MVI architecture. - Engineered a high-performance video delivery system by implementing strategic caching and preloading, slashing data consumption by over 82% (from 700MB to 120MB) and drastically reducing playback buffering for a seamless user experience. - Enhanced feature stability and enabled data-driven improvements by writing comprehensive unit tests to ensure code quality and setting up a detailed analytics pipeline to monitor user engagement and performance. www.indusappstore.com

Software Engineer at Cisco, Feb 2025 - Jun 2025 · 5 mos, Bengaluru, Karnataka, India, - Building Cygnus, Cisco’s first unified, plug-and-play, config-driven CI/CD platform that standardizes and automates the validation and deployment of all networking operating systems used across Cisco devices, ensuring consistency, efficiency, and scalability. - Implemented a fully parameterized downstream job for ISO builds, improving modularity, code quality, and scalability. – Reduced CI resource usage by ~37%, parallelized test execution across testbeds, and automated test report feedback to PRs, streamlining developer workflows.

Software Engineer at Mercari, Inc., Dec 2024 - Feb 2025 · 3 mos, Tokyo, Japan, - Started by fixing a UI issue affecting Tablet and Foldable devices. While investigating, found more bugs, raised tickets, and fixed them — making the app more reliable across different screen types. - Worked on multiple high-priority (P0) bugs related to Okihasso. - Got tired of fixing UI issues, so picked up some technical debt. Refactored old unit tests from an outdated coroutine version to Kotlin Coroutines 1.9.0, cleaned up unnecessary test fixtures, and learned about unit testing in the process. - Redesigned the shipping method selection flow for Low-Cost Carriers (LCC) on the seller side. Spent a week brainstorming and planning, proposed a new approach to the team, implemented it behind a feature flag, and wrote tests to ensure everything worked smoothly.

Software Engineer at Cisco, Jun 2024 - Aug 2024 · 3 mos, Bengaluru, Karnataka, India, – Refractored legacy CGI scripts from Perl to Python, reducing code lines by 50% and making it more scalable and efficient. – Enhanced the UI/UX of the tool using Javascript and CSS. Added real-time telemetry and a PING feature to ensure IP addresses are active before executing scripts, all managed through a Flask backend server. – Built a switch health monitoring system using Elasticsearch as the database for storing time-series data, Telegraf to establish a gRPC connection with switches and stream data to the database, and Grafana for visualization, all containerized in Docker for easy deployment and scalability, and hosted on a ubuntu based virtual machine.

Competitive Programming Lead at Developers & Coders Club, Aug 2023 - Mar 2024 · 8 mos

Junior Core Team Member - Android Development at Developers & Coders Club, Nov 2022 - Sep 2023 · 11 mos

Education

Bachelor of Technology - BTech, Electrical Engineering, National institute of technology Agartala