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Microsoft UK • Cheltenham, United Kingdom

Principal Security Researcher – Microsoft Red Team

Employment type:  Full time
8.9

/10

Transparency Ranking

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top 3 scores:
83%

Location

81%

Hours

79%

Autonomy

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Job Description

Security represents the most critical priorities for our customers in a world awash in digital threats, regulatory scrutiny, and estate complexity. Microsoft Security aspires to make the world a safer place for all. We want to reshape security and empower every user, customer, and developer with a security cloud that protects them with end to end, simplified solutions.

The Microsoft Security organization accelerates Microsoft’s mission and bold ambitions to ensure that our company and industry is securing digital technology platforms, devices, and clouds in our customers’ heterogeneous environments, as well as ensuring the security of our own internal estate. Our culture is centered on embracing a growth mindset, a theme of inspiring excellence, and encouraging teams and leaders to bring their best each day. In doing so, we create life-changing innovations that impact billions of lives around the world.

Do you want to find and exploit security vulnerabilities that impact hundreds of millions of users? Join the Microsoft Red Team where you'll join the offensive side of security and emulate real-world attacks against Microsoft. We help ensure Microsoft is ready to face and respond to even the most determined adversaries by exploring new ways to find and prevent security flaws.

We are looking for a Principal Security Researcher to work alongside other Security Researchers and Penetration Testers experienced in identifying and exploiting vulnerabilities in all layers of the services including application, cloud, network, and operational security domains. You will also collaborate across Microsoft with developers and security personnel from multiple teams. By adopting the tactics, techniques, and procedures of potential attackers, you will provide critical insights that empower our security teams to strengthen defenses and protect against the evolving landscape of digital threats.

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.


#MSFTSecurity #Cheltenham #microsoftredteam

Responsibilities

  • Research and discover zero-day vulnerabilities in cloud environments and associated technologies.
  • Develop and implement proof-of-concept exploits to demonstrate potential risks and work closely with engineering teams to address findings.
  • Analyze a wide array of data sources to identify potential security weaknesses and breach points within Microsoft’s infrastructure Develop tools and techniques to scale and accelerate offensive emulation and vulnerability discovery
  • Partner with operational teams to execute targeted attacks on these systems, simulating real-world threat scenarios

Advocate for security change across the company through building partnerships and clearly communicating impact of risks Embody our culture and values.

Qualifications

Required Qualifications

  • Hands-on experience in offensive security research
  • Proven track record of discovering and responsibly disclosing security vulnerabilities.
  • Ability to meet Microsoft, customer and/or government security screening requirements are required for this role. These requirements include but are not limited to the following specialized security screenings: Microsoft Cloud Background Check. This position will be required to pass the Microsoft Cloud background check upon hire/transfer and every two years thereafter.


Preferred Qualifications

  • Proficiency in multiple programming and scripting languages.
  • Proficient years of hands-on experience in offensive security research

Microsoft is an equal opportunity employer. Consistent with applicable law, 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.

Company benefits

Wellbeing allowance
Health insurance
Dental coverage
Gym membership
Mental health platform access
Buy or sell annual leave
Shared parental leave
Charity donation scheme
Employee assistance programme
Employee discounts
Volunteer days
Fertility treatment leave
Open to compressed hours
Open to job sharing
Fertility benefits
Enhanced sick pay
Enhanced sick days
Compassionate leave
Travel insurance
20 days annual leave + bank holidays
Enhanced maternity leave
Enhanced paternity leave
Adoption leave
Childcare credits
Carer’s leave
Cycle to work scheme
Faith rooms
Annual bonus
Annual pay rises
Company car
Hackathons
Open to part-time employees
Pregnancy loss leave
Life insurance
Equity packages
Financial coaching
Relocation packages
Sabbaticals
Enhanced pension match/contribution

We asked employees of Microsoft UK what it's like to work there, and this is what they told us.

Location
83%
Employees are very happy with their working location freedom
Hours
81%
Employees are very happy with the flexibility in the hours they work
Benefits
67%
Employees are largely happy with the benefits their company offers
Work-life balance
63%
Employees feel that they can switch off quite easily from work
Role modelling
74%
Employees feel that most people work flexibly
Autonomy
79%
Employees feel that they can mostly manage how they get their own work done

Working at Microsoft UK

Company employees

Globally: 228,000

Gender diversity (male:female)

67:33

Office locations

London, Reading, Cambridge, Romsey, Manchester, Edinburgh

Hiring Countries

United Kingdom

Awards & Achievements

Most flexible companies

Most flexible companies

Flexa100 2024

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