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Microsoft UK • Multiple Locations, United Kingdom

Senior Software Engineer

Employment type:  Full time
8.8

/10

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Job Description

Overview

The Microsoft Offensive Research & Security Engineering (MORSE) team is looking for a learn-it-all engineer that will help secure Microsoft products.

The MORSE team is responsible for securing Microsoft's operating systems, including Windows, cloud computing platforms, and virtualization technologies. These solutions support the daily needs of over one billion customers worldwide. This team performs security design reviews, code reviews, and vulnerability research on key features of Windows and Azure to make sure they meet the highest possible security standards. Our engineering team builds mitigations, hardens operating systems, builds scalable bug detection systems, improves developer tools, and creates cutting edge vulnerability research capabilities.

In this role, you will help engineering teams secure the operating systems built at Microsoft. The ideal candidate will have hands-on experience with native code (C/C++), penetration testing (code audit, writing fuzzers, finding creative ways to break assumptions), a clear understanding of OS security fundamentals, solid computer science skills, and a passion for keeping Microsoft customers safe.

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

  • Participate in security reviews to identify and mitigate risk in Microsoft products, including design reviews, code reviews, and fuzzing
  • Be the security contact for teams building new innovative products and technologies in the next version of Windows, Azure, and virtualization technologies.
  • Identify security vulnerabilities in a wide variety of key OS features such as network protocols, security features, and Microsoft devices
  • Leverage a broad and current understanding of security to devise new protections
  • Ability to learn new skills and operate in a fast-paced and changing environment
  • Collaborate with product teams to improve security, and articulate the business value of security investments

Qualifications
Required Qualifications:

  • Bachelor's Degree in Statistics, Mathematics, Computer Science, or related field AND relevant years experience working in security or related field.
    • OR Master's.
  • Strong experience in C, C#, or Python.

Other Requirements:

  • 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:

  • Experience in a software engineering or security-related field.
  • Experience identifying vulnerabilities in operating systems and/or native (C/C++) applications.
  • Experience exploiting bugs and bypassing security mitigations in operating systems
  • Familiarity with Microsoft Windows architecture
  • Experience with confidential computing technologies and concepts (e.g., Intel SGX/TDX, AMD SEV-SNP, ARM CCA, enclaves, vTPM), and the security properties/limitations of TEEs.
  • Public track record of relevant security research, especially around vulnerability discovery

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

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.

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 – 3 days a year
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 – 26 weeks paid
Enhanced paternity leave – 6 weeks paid
Adoption leave – 24 weeks paid
Childcare credits
Carer’s leave – 4 weeks paid
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
Family health insurance
Learning license
In house training
Personal development days
Pregnancy support

Working at Microsoft UK

Company employees:

Globally: 228,000

Gender diversity (m:f):

67:33

Hiring in countries

United Kingdom

Office Locations

Awards & Accreditations

Family Friendly

Family Friendly

Flexa awards 2025
Career Progression

Career Progression

Flexa awards 2025
Most flexible companies

Most flexible companies

Flexa100 2024

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