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Senior Software Engineer, Yahoo Mail Backend

Yahoo Inc ISR (Remote) Full-Time
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.

About Yahoo Mail

We build, enhance, and maintain one of the highest scaling email platforms on the planet.  We are the first component in the mail back end, a middle tier, that contains the APIs and business logic through which virtually all mail operations flow.  We implement REST APIs for our world-class mail clients (mobile, web, Yahoo, AOL, etc), standards-based protocols (IMAP, POP, etc) for generic mail clients, and industry leading back-end mail synchronization.  We own the data platform in metadata, storage, and indexing.  And we build even more supporting systems that are part of or support our array of serving and data components.  We share about 20 components implemented in 4M lines of code.

We directly impact approximately 220 Million users every month, serving billions of requests a day across servers & cloud solutions across the world, and are critical to Yahoo’s success.  Our logged-in experience offers even greater value to the rest of Yahoo for serving highly customized experiences.  We achieve high scale on each server using async technologies developed in house as well as from open source and cloud technologies. We take an industry leading number of connections, in the order of 100s of thousands on a single server or instance to achieve a very cost friendly footprint.  We have a unique opportunity to do hard, challenging work, solving problems at a rare scale, innovating to meet our product & users future needs, & continually modernizing, while sustaining an essential service to users’ daily lives.

This is a business critical & central platform to serve all Mail users at the center of Yahoo’s core user base & revenue.  Come join this amazing team of engineers to have a more direct impact on serving users and data at uniquely high scale, work on the next generation tech stack, and support innovative product experiences to grow users.
 

A Lot About You

We are looking for smart people, with strong CS fundamentals, that collaborate well, learn quickly, and value high quality code.  The most successful engineers own and drive their tasks to completion, collaborate well to achieve their goal, can think through scenarios and edge cases, learn from our leadership, and understand the broader impact.  If you are excited about the whole life-cycle of a product - designing, coding, testing, reviewing, launching, and troubleshooting, this is the place to be.  You will learn and gain hands-on experience while engaged in projects with significant impact on the success of Yahoo.

Your Day

  • Design, implement, test, and debug our continually evolving tech stack to scale & sustain a large scale distributed system.

  • Design, implement, test, and debug features in mail supporting client features on a large scale distributed system; revise and refine as required.

  • Personally implement significant works of complexity and size.

  • Partner with leads and architects to solve our more challenging problems.

  • Participate in agile development with weekly sprints, planning & estimating work, daily standup, & retrospectives.

  • Contribute to best practices and work culture of our team.

You Must Have

  • BS, MS, or PhD in Computer Science or related field with a strong record of academic achievement.

  • 8+ Years Experience of software development of backend systems.

  • Programming proficiency in Java

  • Proficient in Computer Science fundamentals, including data structures, algorithms, OS and networking

  • Significant experience with object-oriented programming concepts, large-scale software architecture, networking and distributed systems, and UNIX/Linux environments.

  • Experience in public cloud infrastructure (GCP, AWS, etc), design, provisioning, & deployments

  • Proficient in software engineering processes & tools for coding, testing, and debugging.

  • Excellent communication and collaborate well with a team and incorporate feedback from leaders.

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 (

) 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.

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Job Snapshot

Employee Type

Full-Time

Location

ISR (Remote)

Job Type

Other

Experience

Not Specified

Date Posted

03/27/2025

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