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Posted last month

Principal Security Engineer

@ Microsoft

Vancouver, British Columbia

$142k–$258k/yrOn-siteFull-time4+ years experience
Apply now
SIGNALS

Overview

Microsoft is hiring a Principal Security Engineer for its Windows Security team to find and fix vulnerabilities in Windows through offensive security and vulnerability research. The work includes code audits, fuzzing, penetration testing, exploit development and designing durable mitigations, with pay in the CAD $142,400 to $257,500 range per year.

Pay:

$142,400–$257,500 a year

Responsibilities:

  • Conduct vulnerability research and offensive security assessments across Windows
  • Review product architecture and native code for security flaws
  • Develop proof-of-concept exploits and scalable mitigations
  • Build reusable security tools and automation
  • Partner with Windows engineering teams on secure design

Requirements summary:

  • Master's or Bachelor's degree in a related field plus 4 to 6+ years in security
  • Hands-on offensive security and exploit development experience
  • Experience finding vulnerabilities in operating systems or C/C++ applications
  • 5+ years in software or security engineering (preferred)
  • Familiarity with Windows architecture and internals (preferred)

Tools & skills

Source and dates

Source type not verified · eightfold

Employer posting date
2026-10-05
First seen by our source
2026-10-10
Source record updated
2026-10-15

These dates describe the source record, not a live verification that the employer is still hiring. Check the original posting.

Job details

SeniorityLead
DepartmentSoftware development
Experience4+ years
Hours per week40 (estimated)
Work settingOffice
PositionMostly sitting
Physical demandsphysical low · computer high
LanguagesEnglish, French
EducationBachelor’s degree (preferred), Master’s degree (preferred)
Fields of studyComputer Science, Mathematics, Statistics

Summary and details written by AI from the posting; the employer’s posting is the authority.

Microsoft

Saved company profile

Historical company information from a saved The Jobs API profile (LinkedIn/Crunchbase fields). It is not live-verified; figures may have changed. Missing values remain unknown.

Full company description

Every company has a mission. What's ours? To empower every person and every organization to achieve more. We believe technology can and should be a force for good and that meaningful innovation contributes to a brighter world in the future and today. Our culture doesn’t just encourage curiosity; it embraces it. Each day we make progress together by showing up as our authentic selves. We show up with a learn-it-all mentality. We show up cheering on others, knowing their success doesn't diminish our own. We show up every day open to learning our own biases, changing our behavior, and inviting in differences. Because impact matters. Microsoft operates in 190 countries and is made up of approximately 228,000 passionate employees worldwide.

LinkedIn followers
27,694,452
People associated on LinkedIn
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Reported office locations
  • 1 Microsoft Way, Redmond, Washington 98052, US
  • 1 Denison Street, North Sydney, NSW 2060, AU
  • 1950 Meadowvale Blvd, Mississauga, Ontario L5N 8L9, CA
  • 39, Quai du Président Roosevelt, Issy-les-Moulineaux, Île-de-France 92130, FR
  • Walter-Gropius-Straße 5, München, 80807, DE
  • 2-16-3 Konan, Minato-ku, Tokyo 108-0075, JP
  • Thames Valley Park Drive, Reading, Berkshire RG6 1WG, GB
  • Kanalvej 7, 2800 Kongens Lyngby, DK
  • Luchthavenlaan 1k, Zaventem, Flemish Region 1930, BE
  • Keilalahdentie 2-4, Espoo, 02150, FI
  • Viale Pasubio, 21, Milan, Lombardy 20154, IT
  • 50, Jongro 1-gil, Jongno-gu, Seoul, KR
  • Evert van de Beekstraat 354, Schiphol, North Holland 1118 CZ, NL
  • Dronning Eufemia gate 71, Oslo, 0194, NO
  • Paseo del Club Deportivo, 1, Centro Empresarial La Finca - Edificio 1, Pozuelo de Alarcón, 28223, ES
  • Regeringsgatan 25, Stockholm, 111 53, SE
  • 8058 Zürich-Flughafen, The Circle 02, Zürich, CH
  • Av. President Juscelino Kubitscheck, 1909, Sao Paulo, 04551-065, BR
  • 海淀区,丹棱街5号, 中国, 100080, CN
  • DLF Building No.5 (Epitome), Cyber City, DLF Phase III, Gurgaon, 122002, IN
  • Av. Vasco de Quiroga 3200, Col. Centro de Ciudad Santa Fe, Del Álvaro Obregón, 01210, MX
  • Ул. Крылатская, 17, Москва, 121614, RU
  • 3012 William Nicol Drive, Johannesburg, Gauteng 2191, ZA
  • Aydın Sokak No:7, Bellevue Residences, Levent Mahallesi, İstanbul, 34340, TR
  • Am Europlatz 3, Vienna, 1120, AT
  • 100 Cyberport Road, 15/F, Cyberport 2, Hong Kong, HK
  • One Microsoft Place, South County Business Park, Leopardstown, Dublin 18 D18, IE
  • רחוב הפנינה 2, רעננה, 43107, IL
  • 22 Viaduct Harbour Avenue, Auckland, NZ
  • Al. Jerozolimskie 195a, Warszawa, 02-222, PL
  • Rua do Fogo de Santelmo, Lote 2.07.02, Lisboa, 1990 – 110, PT
  • The Business Gate, Building A2 Airport Road, Cordobah, Riyadh, 11552, SA
  • 182 Cecil Street, #13-01 Frasers Tower, Singapore, 069547, SG
  • Pradiareň 1900, Svätoplukova 2A, Bratislava, 821 08, SK
  • Zhongxiao East Road Section 5 No. 68, Xinyi District, Taipei City, TW
  • Sheikh Zayed Road, Dubai Internet City, Building No 8, Dubai, 52244, AE
  • 1106 Federal Capital, Bouchard 710, Buenos Aires, AR
  • Av. Vitacura 6844, Santiago, CL
  • Calle 92 # 11 – 51, Bogota, CO
  • Kilo 28, Cairo/Alex Desert Road, Abou Rawash, Cairo, EG
  • Jl. Jend. Sudirman Kav. 52-53, Jakarta Stock Exchange Building Tower II, Jakarta, 12190, ID
  • No. 211, Jalan Tun Sambanthan, Menara Shell, Kuala Lumpur, 50470, MY
  • Ayala Avenue cor Edsa, Brgy. San Lorenzo,, 11F, One Ayala East Tower, Makati City, 1223, PH
  • Bulevardul Iuliu Maniu nr. 6P, Clădirea Campus 6.2, București, 061103, RO
  • 87/2 ถนนวิทยุ แขวงลุมพินี, ตึก CRC Tower ออลซีซันส์เพลส, เขตปทุมวัน กรุงเทพฯ, 10330, TH
Business categories
  • Cloud Security
  • Mobile Apps
  • Gaming
  • Enterprise Resource Planning (ERP)
  • Business Development
  • Data Management
  • Software
  • Education
  • Quantum Computing
  • Network Security
  • Developer Tools
  • Identity Management
  • DevOps
  • Computer Vision
  • Mobile
  • Media and Entertainment
  • Information Technology
  • Operating Systems
  • Cyber Security
  • Hardware
  • Information Services
  • Music Streaming
  • Artificial Intelligence (AI)
  • Computer
  • CRM
  • Video Conferencing
  • Health Care
  • Apps
  • Enterprise Software
  • Business Intelligence
  • Cloud Computing
  • Digital Media
  • Advertising
  • Agentic AI
  • Online Portals
  • Productivity Tools
  • Application Performance Management
  • Internet
  • SEM
  • Data Mining
  • Management Information Systems
  • Web Browsers
Other recorded names
  • Microsoft
Specialties
  • Business Software
  • Developer Tools
  • Home & Educational Software
  • Tablets
  • Search
  • Advertising
  • Servers
  • Windows Operating System
  • Windows Applications & Platforms
  • Smartphones
  • Cloud Computing
  • Quantum Computing
  • Future of Work
  • Productivity
  • AI
  • Artificial Intelligence
  • Machine Learning
  • Laptops
  • Mixed Reality
  • Virtual Reality
  • Gaming
  • Developers
  • and IT Professional
Profile identifies a recruitment agency
No
Reported total investment
1,000,000

Currency and observation date were not supplied; this is not a current valuation or a funding round.

Every company has a mission. What's ours? To empower every person and every organization to achieve more. We believe technology can and should be a force for good and that meaningful innovation contributes to a brighter world in the future and today. Our culture doesn’t just encourage curiosity; it embraces it. Each day we make progress together by showing up as our authentic selves. We show up with a learn-it-all…

FieldValue
IndustrySoftware Development
Company size10,001+ employees
HeadquartersRedmond, Washington
Organization typePublic Company
SpecialtiesBusiness SoftwareDeveloper ToolsHome & Educational SoftwareTabletsSearchAdvertisingServersWindows Operating SystemWindows Applications & PlatformsSmartphones
Open jobs on Jobsy127
LinkedInView page
Job description
Overview

The Microsoft Windows Security team is looking for a Principal Security Engineer to help secure Windows products and devices through offensive security, vulnerability research, and the development of scalable security mitigations.

The Windows Security team helps protect Windows client and server operating systems used by customers and businesses worldwide. The team performs security design and code reviews, penetration testing, and vulnerability research while developing defenses that strengthen Windows against evolving cybersecurity threats.

In this role, you will identify and investigate complex security vulnerabilities and novel attack vectors across Windows, develop proof-of-concept exploits, and design durable mitigations for individual vulnerabilities and broader classes of security issues. You will apply deep knowledge of native code, operating system security, vulnerability research, and offensive security techniques while partnering with Windows engineering teams to incorporate security into product architecture and design.

Microsoft's mission is to empower every person and every organization on the planet to achieve more. As employees, we come together with a growth mindset, innovate to empower others, and collaborate to realize our shared goals. Each day, we build on our values of respect, integrity, and accountability to create a culture of inclusion where everyone can thrive at work and beyond



Responsibilities
  • Conduct vulnerability research and offensive security assessments across Windows, using techniques such as code auditing, fuzzing, penetration testing, and exploitation to identify vulnerabilities and no
  • complex security risks, and develop durable defenses.
  • Engage with internal and external security communities to understand emerging vulnerabilities, attack techniques, and opportunities to strengthen Windows securityvel attack vectors.
  • Review product architecture, features, and native code to identify security vulnerabilities and architectural risks using manual and automated security analysis techniques.
  • Develop proof-of-concept exploits and scalable mitigations that address identified vulnerabilities and broader classes of security issues.
  • Design and build reusable security tools and automation that improve the efficiency, consistency, and quality of security reviews and vulnerability discovery.
  • Partner with Windows product engineering teams to incorporate security into product design, resolve


Qualifications

Required/minimum qualifications

Master's Degree in Statistics, Mathematics, Computer Science, or related field AND 4+ years experience in security or related field OR Bachelor's Degree in Statistics, Mathematics, Computer Science, or related field AND 6+ years experience in security or related field OR equivalent experience.

  • Hands-on experience with offensive security techniques such as penetration testing, vulnerability research, exploit development, or bypassing operating-system security mitigations

  • Experience identifying vulnerabilities in operating systems and/or native (C/C++) applications.
  • Additional or preferred qualifications

    Master's Degree in Statistics, Mathematics, Computer Science, or related field AND 8+ years experience in security or related field OR Bachelor's Degree in Statistics, Mathematics, Computer Science, or related field AND 12+ years experience in security or related field OR equivalent experience.

  • 5+ years of experience in software engineering, security engineering, or a related technical field.

  • Demonstrated experience in security research, particularly vulnerability discovery.

  • Experience exploiting vulnerabilities and bypassing security mitigations in operating systems.

  • Familiarity with Microsoft Windows architecture and operating system internals.



  • Penetration Testing IC5 - The typical base pay range for this role across Canada is CAD $142,400 - CAD $257,500 per year.

    Find additional pay information here:
    https://careers.microsoft.com/v2/global/en/canada-pay-information.html



    Penetration Testing IC5 - L'échelle salariale de base typique pour ce rôle dans l'ensemble du Canada est de 142,400 $ CAD à 257,500 $ CAD par année.

    Pour plus d'information au sujet de la rémunération, veuillez cliquer ici:
    https://careers.microsoft.com/v2/global/en/canada-pay-information.html



    Ce poste sera ouvert pendant au moins cinq jours et les candidatures seront acceptées de façon continue jusqu’à ce que le poste soit pourvu.


    This position will be open for a minimum of 5 days, with applications accepted on an ongoing basis until the position is filled.



    Microsoft est un employeur offrant l’égalité d’accès à l’emploi. Tous les candidats qualifiés seront pris en considération pour l’emploi, sans égard à l’âge, à l’ascendance, à la citoyenneté, à la couleur, aux congés médicaux ou familiaux, à l’identité ou à l’expression de genre, aux renseignements génétiques, à l’état d’immigration, à l’état matrimonial, à l’état de santé, à l’origine nationale, à un éventuel handicap physique ou mental, à l’affiliation politique, au statut de vétéran protégé ou au statut militaire, à la race, à l’ethnie, à la religion, au sexe (y compris la grossesse), à l’orientation sexuelle ou à toute autre caractéristique protégée par les lois, ordonnances et règlements locaux applicables. Si vous avez besoin d’aide avec des accommodements religieux et/ou d’un accommodement raisonnable en raison d’un handicap pendant le processus de candidature, apprenez-en plus sur la demande d’accommodement.


    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 with religious accommodations and/or a reasonable accommodation due to a disability during the application process, read more about requesting accommodations.

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