Software Engineer-O365
Suzhou, Jiangsu, China

Are you looking for an opportunity to defend the productivity of millions worldwide against malicious individuals and organizations?

Continually curious about innovative techniques and technologies in the rapidly developing landscape of information security?

Obsessed with finding security solutions that solve hard problems and create better experiences for users and developers?

So are we. M365 Security Engineering is the core security team for Microsoft 365's suite of services, including Office 365.

We design, build, and operate security solutions that run at cloud scale to secure the world's largest commercial SaaS service.

Our solutions enable engineers in Microsoft to build intelligent and differentiated services and products while meeting industry leading customer commitments and building customer trust.

Our vision is that building services and products that commercial and consumer customers can trust is something that any engineer at Microsoft should be able to do in a self-service way.

We invest in key areas of security and compliance centrally so that teams can focus on building the next great app, using intelligence, automation, and extensibility to scale our ability to hold teams accountable for delivering secure and compliant products and services.

Our culture is inclusive, casual and high energy; our engineers come from diverse backgrounds, are passionate and loyal to coworkers and our products, and grounded in our customer needs.

Our team has a strong sense of accountability and provides its members many opportunities for learning and career growth.

Our bold mission is to defend the productivity of people and organizations at home, at school, and at work. Enabling teams at Microsoft to deliver trustworthy intelligent services people love to use to communicate, create, learn and work together, anywhere.


We are looking for a talented engineer to join the team, one who is passionate about cloud security and performance and has a strong desire to work on worldwide-scale services, debugging and optimizing the various parts of the authentication and authorization stack.

Responsibilities include feature definition, design, and hands-on development of core authentication / authorization, identity and policy services.

The ideal candidate will be detail-oriented with a drive for results and have a good balance of problem-solving skills and ownership / accountability in independently owning feature areas.

  • Designing and coding new functionality for authentication, authorization, identity and policy services
  • Maintaining, scaling and optimizing high scale cloud services
  • Running the live site , testing and debugging in production
  • Qualifications

    Technical excellence is rooted in demonstrating a strong aptitude for problem solving. The successful candidate will be able to demonstrate this broad set of attributes well.

    As the position is one of software engineer, an ability to code is a base requirement. As there are many forms of coding in practical use today.

    having experience in languages and frameworks such as Ruby, node.js, Python, C#, Java, C, C++, and various others is acceptable, assuming the candidate can demonstrate proficiency in what they know, and can extend their learning to new languages, tools, and environments.

    Basic :

  • Strong coding skills
  • Bachelor’s degree in Computer Science or Engineering
  • Preferred :

  • Strong communication skills and a passion for solving hard problems
  • Passionate to learn new skills / knowledge
  • Knowledge and experience of security fundamentals is a plus
  • Knowledge of distributed systems, large-scale Data technologies development is a plus
  • 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.

    Benefits / perks listed below may vary depending on the nature of your employment with Microsoft and the country where you work.

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