Principal Software Apps Engineer

Yahoo 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 trusted guide for hundreds of millions of people worldwide, empowering them to achieve their goals online through a portfolio of iconic products. We connect users to what they love — from mail, finance, and sports to shopping, news, and entertainment — through trusted experiences, meaningful content, and technology that power their everyday lives.

About Our Team

Yahoo is made up of several organizations, each led by a GM and focused on driving key product lines. This role sits within the Yahoo Mail group, home to our flagship product, Yahoo Mail. You’ll be joining a team — that has a great product line, with its 4.5+ star app experiences, strong business foundation, and robust technology, is well-positioned in the consumer communication space. Now, we’re entering our next chapter: building the most consumer-focused platform for managing the “business of life,” through email and beyond. You’ll join a team of engineers dedicated to delivering the best consumer mail experience, meticulously refining every detail to make that vision a reality.

A lot about YOU

You’re committed to growing your skills and building high-quality applications using modern technologies and cloud platforms. You thrive on creating the next generation of communication products across mobile or web. You take pride in driving projects to completion, collaborating effectively, thinking through edge cases, and understanding the broader impact of your work. You enjoy learning from experienced leaders and working with a world-class team that values clean architecture, thoughtful design, and great user experiences—while having fun along the way. If that sounds like you, we’d love to talk.

Responsibilities:

• Responsible for the definition, design, development and timely completion of major new features in current and future products

• Performing code reviews for your peers where you will be learning from and contributing to a collaborative working model

• Tackling hard engineering and user experience problems and solving them in an elegant and seamless manner.

• Taking ownership of features and areas of the mobile application that will impact millions of users.

• Working with engineering team members to explore and create interesting solutions while sharing knowledge amongst the team.

• Collaborating with user experience designers, product managers, and other engineers to deliver new features, enhancements, platform improvements and bug fixes

• Collaborate with other engineers to write testable, reliable code, continuously deploying to production systems

• Growing in a culture of learning through design discussions and code reviews

• Own, deploy, monitor and operate large scale production systems distributed across the globe. 

• Recommend alternative approaches to solving complex problems and use new technology to achieve goals

Qualifications:

• BS in Computer Science (or equivalent) with 8+ years of experience

• Strong Object Oriented programming experience:  Kotlin, Java, C++ or similar

• Strong foundation in Computer Science, with strong competencies in data structures, algorithms, and software design

• Deep technical knowledge of Android mobile application development with a solid understanding of the framework components and their life cycles. 

• Expert in software development domain and principles, including design patterns, code structure, programming languages, continuous integration, and deployment architecture

• Experience with mobile test driven development using Espresso, Roboelectric, Appium or similar technologies

• Excellent communication skills, both written and oral

• Leverage AI coding assistants (e.g., GitHub Copilot, Cursor) as a core part of your daily workflow to accelerate development velocity and optimize code quality.

Preferred Qualifications:

• Experience building apps with ReactNative

• Experience working with JetPack Compose

• Experience with AI, ML and GenAI

• Shipped an app to the Google Play store

• Experience developing Mobile applications frameworks and/or SDK solutions for Identity, Payments, Analytics 

• Experience with Web Technologies (NodeJs, JSON, TypeScript, HTML5 and CSS3)

• Experience with Scrum or similar agile development methodology

Please Note: To support collaboration in this newly established team, the role requires on-site attendance at our Dublin office two days per week.

Yahoo is proud to be an equal opportunity workplace. All qualified applicants will receive consideration for employment without regard to, and will not be discriminated against based on age, race, gender, color, religion, national origin, sexual orientation, gender identity, veteran status, disability or any other protected category. Yahoo will consider for employment qualified applicants with criminal histories in a manner consistent with applicable law. Yahoo is dedicated to providing an accessible environment for all candidates during the application process and for employees during their employment. If you need accessibility assistance and/or a reasonable accommodation due to a disability, please submit a request via the Accommodation Request Form (www.yahooinc.com/careers/contact-us.html) or call +1.866.772.3182. Requests and calls received for non-disability related issues, such as following up on an application, will not receive a response.

Yahoo has a high degree of flexibility around employee location and hybrid working. In fact, our flexible-hybrid approach to work is one of the things our employees rave about. Most roles don’t require specific regular patterns of in-person office attendance. If you join Yahoo, you may be asked to attend (or travel to attend) on-site work sessions, team-building, or other in-person events. When these occur, you’ll be given notice to make arrangements. 

If you’re curious about how this factors into this role, please discuss with the recruiter.

Yahoo is proud to be an equal opportunity workplace. All qualified applicants will receive consideration for employment without regard to, and will not be discriminated against based on age, race, gender, color, religion, national origin, sexual orientation, gender identity, veteran status, disability or any other protected category. Yahoo will consider for employment qualified applicants with criminal histories in a manner consistent with applicable law. Yahoo is dedicated to providing an accessible environment for all candidates during the application process and for employees during their employment. If you need accessibility assistance and/or a reasonable accommodation due to a disability, please submit a request via the Accommodation Request Form (www.yahooinc.com/careers/contact-us.html) or call +1.866.772.3182. Requests and calls received for non-disability related issues, such as following up on an application, will not receive a response.

Yahoo has a high degree of flexibility around employee location and hybrid working. In fact, our flexible-hybrid approach to work is one of the things our employees rave about. Most roles don’t require specific regular patterns of in-person office attendance. If you join Yahoo, you may be asked to attend (or travel to attend) on-site work sessions, team-building, or other in-person events. When these occur, you’ll be given notice to make arrangements. 

If you’re curious about how this factors into this role, please discuss with the recruiter.

Currently work for Yahoo? Please apply on our internal career site.