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Principal Software Engineer

Microsoft

Microsoft

Software Engineering
Posted on Oct 23, 2025

Principal Software Engineer

Hyderabad, Telangana, India

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Date posted
Oct 22, 2025
Job number
1900272
Work site
4 days / week in-office
Travel
0-25 %
Role type
Individual Contributor
Profession
Software Engineering
Discipline
Software Engineering
Employment type
Full-Time

Overview

Microsoft Defender for Office (MDO) team, we are responsible for delivering a cloud-based email and message filtering service that protects customers from advanced threats (malware, phish, fraud and spam) in Microsoft’s collaboration workloads (Mail, Teams, Sharepoint, OneDrive).

In Microsoft Defender for Office (MDO) team, we are responsible for delivering a cloud-based email and message filtering service that protects customers from advanced threats (malware, phish, fraud and spam) in Microsoft’s collaboration workloads (Mail, Teams, Sharepoint, OneDrive). MDO provides investigation, threat hunting and remediation capabilities that allow security teams to efficiently identify, prioritize, investigate, and respond to threats. Our mission is to stay ahead of attackers by continuously evolving our detection and prevention capabilities using advanced machine learning, heuristics, and big data analytics.

Qualifications

  • Required: Bachelor’s or Master’s Degree in Computer Science or related technical field, with 7+ years of hands-on engineering experience and a proven track record of delivering large-scale, high-impact solutions. Deep expertise in distributed systems, security platforms, and coding in languages such as C, C++, C#, Java, JavaScript, or Python.
  • Experience in organizational and technical leadership, architecting cloud services, and driving product innovation.

Preferred qualifications:

  • Proficiency in Azure Cloud PaaS, big data analytics, and modern security protocols.

Responsibilities

As a Principal Software Engineer in our team , You will be responsible for

  • Architecting and delivering email blocking system based on domain reputation which will involve building models to analyze and evaluate the domains that send malware, phishing email.
  • Architecting and building solutions to analyze bulk email pattern and isolate the emails harmful to customers.
  • Champion the product roadmap , collaborating with cross functional teams to integrate cutting edge threat detecting models and capabilities.
  • Mentor the team of brilliant engineers to design and implement with best engineering practices.


Benefits/perks listed below may vary depending on the nature of your employment with Microsoft and the country where you work.
Industry leading healthcare
Educational resources
Discounts on products and services
Savings and investments
Maternity and paternity leave
Generous time away
Giving programs
Opportunities to network and connect

Microsoft is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to age, ancestry, citizenship, color, family or medical care leave, gender identity or expression, genetic information, immigration status, marital status, medical condition, national origin, physical or mental disability, political affiliation, protected veteran or military status, race, ethnicity, religion, sex (including pregnancy), sexual orientation, or any other characteristic protected by applicable local laws, regulations and ordinances. If you need assistance and/or a reasonable accommodation due to a disability during the application process, read more about requesting accommodations.