The constraint that defines this job

Our median learner is on a four-year-old Android phone with 3GB of RAM and a data pack they are careful with. Every kilobyte and every re-render is a real cost to a real student. If you have ever wanted an engineering problem where performance work is obviously worth doing rather than a nice-to-have, this is it.

What you will build

The lesson player: video, transcript, inline quizzes and progress sync, all of which must survive the connection dropping in the middle of a chapter. Alongside it, the practice-test experience, which has to feel instant even when a student answers forty questions in six minutes.

You will work with two other frontend engineers, a designer and the content team. Content sits in the same reviews as engineering, so you will hear directly when something you built confuses a fifteen-year-old.

What we look for

Two to five years of React, an instinct for semantic HTML and accessible markup, and real curiosity about what happens between a tap and a paint. You do not need prior EdTech experience. You do need to care that the app works on a bad connection in a small town, because that is who uses it.

Responsibilities

Build and maintain the lesson player and practice-test experiences
Keep the initial JavaScript bundle under the agreed budget for every release
Make offline and flaky-network behaviour a first-class part of every feature
Test on real low-end Android hardware, not only on a desktop emulator
Sit in content reviews and translate learner confusion into interface changes

Requirements

2-5 years of production frontend work with React
Strong HTML and CSS, including accessible form and dialog patterns
Familiarity with Core Web Vitals and how to actually move them
Experience with a bundler and reading a bundle analysis report
Comfortable working in a codebase you did not write

Skills

React JavaScript CSS Accessibility Web Performance Next.js

Benefits

Health insurance with no waiting period
A test-device library you can borrow from indefinitely
Hybrid working with two fixed office days
Paid certification and conference budget

Sarvam Learning

Chennai201-500 peopleEducation Technology

Sarvam Learning delivers exam preparation for state board and competitive exams in seven Indian languages. Most learners open the app on a phone that cost under ten thousand rupees, often on a shared data plan, so every megabyte we ship is a decision someone had to defend.

We build alongside our teachers. Content, product and engineering sit in the same review, and a lesson that confuses students gets pulled the same week. Learning outcomes, not session time, are the metric we are judged on.

The team is based in Guindy, Chennai, and about a third of engineering works fully remote.

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