Mobile App Developer

Salarybox; Gurugram District; On-site; INR 1,200,000 - 2,400,000; Full time

Job summary

SalaryBox is seeking a mobile engineer to join an agile team building attendance and payroll apps for MSMEs in India. You will ship features end-to-end, own platform releases, and help shape the app architecture.

Expect work on Kotlin/Swift, Jetpack Compose or SwiftUI, and REST/GraphQL integrations while maintaining high-quality tests and reviews. Join a fast-growing startup backed by Y-Combinator, contributing to a product used by millions and spanning Play Console/App Store Connect releases,

Qualifications

• 1–3 years of experience building and shipping production mobile apps with end-to-end releases.
• Strong Kotlin or Swift experience with modern UI toolkits.
• Experience with REST/GraphQL, caching, and offline behaviour.

Responsibilities

• Ship features end to end, including API integration and local persistence.
• Own releases through Play Console and App Store Connect, including staged rollouts.
• Build and maintain the app architecture.
• Handle platform-specific work like permissions, background execution, push notifications, and deep links.
• Investigate crashes, ANRs, and performance regressions on real devices.
• Write unit and UI tests, and review code including AI-generated code.

Skills

Kotlin

Swift

Jetpack Compose

Coroutines

REST/GraphQL

Tools

Retrofit

Ktor

URLSession

Job description

It’s an amazing time to be joining SalaryBox as we continue to transform attendance and payroll for over 60 million MSME’s in India.We launched the app in Jan 2021, and now have more than 4 million downloads of the app.Backed by Y-Combinator, SalaryBox is India’s leading attendance and payroll app. Considered to be the engine of economies around the world, the MSME segment in India alone has ~63 million units, and employs ~100 million people. The sector accounts for 27% of GDP and is crucial to the functioning of the economy. We are on a mission to make work easier for these business owners, managers, and employees so that they can focus on the things they do best. Today, SalaryBox is a fun bunch of analytical and ambitious folks building the first-of-its-kind technologies for the MSME ecosystem. Our mission is big, so we act with urgency in everything we do. We find creative ways to test ideas and learn today so that we focus on the right things tomorrow.

We are looking for a candidate who is willing to work with an early-age startup and help us grow. You will be working with an agile team where your ideas have the potential to reach millions. You will be an integral part of the organization where you will be a critical voice in the decision-making process.

Ship features end to end, covering API integration, local persistence, offline behaviour, and state management.

Own releases through Play Console and App Store Connect, including staged rollouts and post-release monitoring.

Build and maintain the app architecture.

Handle platform-specific work such as permissions, background execution, push notifications, and deep links.

Investigate crashes, ANRs, and performance regressions on real devices.

Write unit and UI tests, and review code, including code generated with AI.

What we’re looking for:

• 1–3 years of experience building and shipping production mobile apps, with releases you owned end to end, including signing, Play Console / App Store Connect submission, and staged rollout.
• Strong Kotlin (and/or Swift) experience with coroutines and Flow (or async/await), plus a modern UI toolkit such as Jetpack Compose and/or SwiftUI.
• Hands‑on experience with the data layer, including REST/GraphQL via Retrofit/Ktor/URLSession, caching, and offline behaviour.
• Experience with Profiler/Instruments and Crashlytics to detect crashes, ANRs, memory, and startup performance issues.
• Working fluency with AI coding agents (Claude Code, Cursor, Copilot), with the judgment to review, test, and correct generated code before it ships.