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Principal iOS Engineer, Yahoo Mail



Software Engineering
Remote, OR, USA · Remote
Posted on Thursday, April 4, 2024
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 US

The client experiences team develops products for Yahoo Mail on Android, iOS, and Web used by over 200 million users across 40 countries and 70 languages. Yahoo Mail continues to be one of the largest and most recognizable email services in the world. Delivering over 4.5B emails daily, and with consistently top-rated mobile apps, Yahoo Mail is a critical pillar in the company’s long-term growth strategy. You will join a team of engineers who strive to deliver our users best consumer mail experience and are willing to meticulously refine the details to achieve this goal.

A lot about YOU

You are passionate about growing your skills and value high quality application development on modern tech stack and cloud. You will enjoy building the next generation of communication products, web and mobile platforms. You are interested in how best to drive tasks to completion, collaborate to achieve your goals, think through scenarios and edge cases, learn from your leadership, and understand the broader impact of your work. If you are interested in joining a world-class team of passionate people and industry veterans who care about code quality, architecture, design and user experience as much as having fun together, then we’d like to talk to you.


  • 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


  • BS in Computer Science (or equivalent) with 8+ year’s experience

  • Strong OO programming experience: Swift, Objective-C, C++, Java or similar

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

  • Deep technical knowledge of iOS 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 XCUITest, Appium, Kiwi or similar technologies

  • Excellent communication skills, both written and oral

Preferred Qualifications:

  • Experience in leading app user growth initiatives

  • Shipped an app to the Apple 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

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 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 408-336-1409. Requests and calls received for non-disability related issues, such as following up on an application, will not receive a response.

At Yahoo, we know that diversity makes us stronger. We are committed to a collaborative, inclusive environment that encourages authenticity and fosters a sense of belonging. We strive for everyone to feel valued, connected, and empowered to reach their potential and contribute their best. Check out our diversity and inclusion (www.yahooinc.com/diversity/) page to learn more.

The compensation for this position ranges from $143,625.00 - $299,375.00/yr and will vary depending on factors such as your location, skills and experience. The compensation package may also include incentive compensation opportunities in the form of discretionary annual bonus or commissions, in addition to equity incentives. Yahoo provides industry-leading benefits including healthcare, 401K savings plan, company holidays, vacation, sick time, parental leave and an employee assistance program. Eligibility requirements apply.

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.