Are you passionate about building leading software and services? Office 365 is the locomotive that is driving the growing Microsoft valuation, and is critical to the future of the company. Substrate is the set of intelligent, high value services running in a compliant environment that is enabling the next generation of transformative end-user experiences for Office and the entire company. The M365 Migration team has an opportunity for you get in on designing and building a core part of the stack.

Responsibilities

The Mailbox Migration team is looking for a self-motivated and experienced software engineer to work
on one or more of the following components owned by our team:
Mailbox Replication Service, which schedules and moves mailboxes, typically to onboard or offboard
them to our Cloud or to balance load within it.
Mailbox Cloud Cache to replicate data in near real time between our Cloud and the master copy
hosted by a 3rd party provider, such as an on-premise Exchange installation, Gmail or a generic IMAP
host.
Mailbox Migration: to move whole sets of mailboxes into our Cloud.
Mailbox Load Balancing: to intelligently relocate mailboxes to smooth overall load within our
datacenters.
These are hyperscale Cloud services involving billions of users across 100s of thousands of servers, so
your skills in choosing the right data structures and algorithms will be challenged very heavily. Your
responsibility will be to analyze, design and implement ways to improve the quality of service and
develop new features to help customers use our services. The ideal candidate should have strong
analytical, design, and development skills with depth in databases, storage, high performance data
structures and algorithms and a passion for analyzing and improving performance - I/O, memory, CPU,
concurrency. She/he should have a strong development background, excellent communication skills,
and a strong foundation in Computer Science.
Lastly, because the work is done indirectly on behalf of a giant team, skills in persuasion are key to
success.

Qualifications

Basic Qualifications:
• BS/BA in computer science, or 2+ years of software development experience

Preferred Qualifications:
• Proficiency in C# or C/C++, and strong design, implementation, and debugging skills; knowledge of scripting
languages a plus
• Familiar with distributed systems, performance analysis, databases, and/or large-scale data processing
• Strong communication skills (both written and oral)
• Ability to prioritize tasks and work independently

Microsoft is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to age, ancestry, color, family or medical care leave, gender identity or expression, genetic information, marital status, medical condition, national origin, physical or mental disability, political affiliation, protected veteran status, race, religion, sex (including pregnancy), sexual orientation, or any other characteristic protected by applicable laws, regulations and ordinances.