Principal Software App Engineer - Yahoo Mail

TheCodingShef; India; On-site; INR 3,000,000 - 6,000,000; Full time

Job summary

Yahoo is seeking a senior Android/React Native engineer to build and evolve Yahoo Mail’s mobile experience. The role requires strong Kotlin and Java expertise, Jetpack Compose, and hands-on API design with REST/GraphQL.

You will own features end-to-end, collaborate across teams, and solve performance and usability challenges at scale. Applicants should have 8+ years in mobile development, a CS degree (BS/MS/PhD), and experience with AI-powered development tools.

Qualifications

• BS/MS/PhD in Computer Science or a related field.
• 8+ years of experience building consumer-facing Android, mobile, or web apps.
• Strong knowledge of Kotlin and Java for Android development.

Responsibilities

• Designing, developing, testing, and shipping features for Yahoo Mail's mobile experience.
• Owning projects end-to-end from design to deployment and monitoring.
• Performing code reviews and contributing to a collaborative engineering culture.
• Drive architectural decisions and scalable, maintainable solutions for performance and usability.

Skills

Kotlin

Java

Jetpack Compose

REST APIs

React Native

Android Development

AI tools

Data structures

Education

BS/MS/PhD in Computer Science or related field

Tools

Cursor

Claude Code/Desktop

Gemini

CLI

Job description

## About the roleKotlinJavaJetpack ComposeREST / GraphQLAOSP / PlatformYahoo Mail is the ultimate consumer inbox with hundreds of millions of users. It’s the best way to access your email and stay organized from a computer, phone or tablet. With its beautiful design and lightning fast speed, Yahoo Mail makes reading, organizing, and sending emails easier than ever.\\*A little about Yahoo\\*Yahoo is a values-led company committed to building brands people love. We reach over one billion people around the world with a dynamic house of 50+ media, communication and technology brands. A global leader in digital and mobile, Yahoo brands are shaping the future of communication and media.Our mission\\*Build brands consumers love\\*Build platforms customers love\\*Build a company talent lovesWe are looking for great talent - mobile, frontend and backend software developers, UX designers, and product engineers that can contribute to the development of our exciting next-generation products. If you are excited about the overall lifecycle of a product - building, coding, testing, launching and learning, this is the place to be, because you will learn and gain hands-on experience while engaged in projects with significant impact on the success of our businesses. You are a great problem solver, the capability to work independently as well as with a team, and the willingness to learn from our leadership.\\*Android / React Native\\*We are currently looking for a highly qualified Android developer with strong React Native experience to help us build the next generation of mobile mail experience for Yahoo. We need a dedicated and technically strong engineer with industry knowledge to make our apps even better and to drive the evolution and expansion of our current applications portfolio into new technology areas and market segments.\\*Android / React Native\\*\\*BS, MS, or PhD in Computer Science or a related field, or equivalent practical experience\\*8+ years of experience building consumer-facing Android, mobile, or web applications\\*Deep technical knowledge of Android application development using Kotlin and Java, with a solid understanding of Android framework components, application lifecycles, and Jetpack Compose\\*Strong foundation in Computer Science, including data structures, algorithms, object-oriented design, and software engineering principles\\*Experience designing and integrating RESTful APIs and third-party services\\*Hands-on experience using AI-powered development tools such as Cursor, Claude Code/Desktop, Gemini, or similar, including CLI and cloud agent workflows as part of daily software development\\*Strong communication, collaboration, and problem-solving skills with the ability to work effectively across cross-functional teams\\*You will be\\*\\*Designing, developing, testing, and shipping features for Yahoo Mail's mobile experience, used by millions of users worldwide\\*Owning projects end-to-end, from technical design and implementation through deployment, monitoring, and ongoing improvements\\*Performing code reviews while contributing to and learning from a highly collaborative engineering culture\\*Driving technical decisions and recommending scalable, maintainable solutions to complex engineering and user experience challenges\\*Tackling challenging performance, reliability, and usability problems with elegant and efficient solutions\\*Taking ownership of key features and technical areas that directly impact millions of users\\*Collaborating c...