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Senior Windows Platform Engineer

Remote, from Estonia, Italy or·Full-time·Added 8 days ago (last checked 5 Nov)

Malwarebytes

6 open roles

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Our summary

Work mode: Remote (from Estonia, Italy or)
Contract: Permanent, full-time hours
English: Required
Experience: 8+ years

Visa options

The ad doesn’t mention sponsorship
No sponsorship mentioned, and this kind of work is rarely sponsored in Spain.
May fit the digital nomad visa
A remote job for a company outside Spain: you apply yourself, no sponsor needed. It asks for about €2,849 a month in remote income.

More jobs that may fit the digital nomad visa

Skills

Requirements

What we're looking for

8+ years of professional C++ development
Solid understanding of Windows internals at both user and kernel level
Strong debugging skills: WinDbg, crash dumps
High standards for code quality: solid grasp of SOLID principles and design patterns, applied consistently in a large codebase
Experience shipping software that runs with high privileges on production systems

Nice to have

Experience with antivirus, EDR, or endpoint security products
Knowledge of Windows security features: ELAM, PPL, or kernel isolation
Experience with driver signing or HLK/WHQL certification
Familiarity with threat detection techniques or malware analysis
Knowledge of C# and .NET, including common patterns and best practices

Pay & benefits

What you'll get

Comprehensive medical, dental, and vision insurance coverage
Employee Referral Bonus Program 
Wellness programs  
An opportunity to do something great for yourself and the world!

(Benefits and Perks subject to change by country/region)

The role

Malwarebytes is looking for..

Malwarebytes protects millions of people and businesses from online threats. We are looking for a Senior C++ Developer with strong systems programming experience to work on the core of our antivirus engine.

This is a hands-on engineering role. You will implement new protection features at both user and kernel space, and help keep our engine fast, stable, and effective on millions of devices.

What you'll do

Work on the antivirus engine: implement new detection and protection features
Build and maintain user and kernel-level components
Write safe, efficient C++ code that runs with high privileges on production systems
Debug hard system issues using crash dumps, kernel debuggers, and trace tools
Work with Research to bring new threat detection ideas into the engine
Review code and share knowledge with teammates
Use AI tools to speed up development and testing
Implement several new features in the antivirus engine, end to end
Contribute to both user mode and kernel mode components
Become a reliable owner of your area of the codebase

About Malwarebytes

Malwarebytes is a cybersecurity company that develops anti-malware and endpoint protection software for consumers and businesses. The company's product portfolio includes threat prevention, detection, and response solutions, and it operates globally with a focus on protecting devices and networks from malicious software and cyber threats.

Industry: Cybersecurity
Headquarters: Santa Clara, California, USA

Good to know if you are moving

The company has a global presence with job openings in Spain, including roles in engineering and data analytics.
The careers page lists positions in Spain, indicating the company hires internationally and may offer relocation support.
The company's headquarters is in Santa Clara, California, USA, but it has operations in Europe, including Spain.
The company is known for its cybersecurity products, which may appeal to professionals with experience in security and software development.

In their own words

About the company & team

Here at Malwarebytes, we believe that when you’re free from threats, you’re free to thrive. It all started in 2008 with one person who needed help with a malware infection, and a community coming together to find solutions. In that moment in time a product was born for all people, with a mission to rid the world of malware. Our product has since grown and evolved, from removing malware, to protecting devices, to ever-changing prevention.

About Malwarebytes Inc.

Malwarebytes began after our founder, Marcin Kleczynski, accidentally infected his parents’ computer while downloading a video game as a teenager. At the time, there was no product that could fully solve the problem, so he set out to build one. That early experience shaped our mission: to create protection that works when people need it most.
Since then, the digital threat landscape has only grown more complex. Attackers are faster, stealthier, and more sophisticated, while traditional solutions often overwhelm people with complicated tools and settings. At Malwarebytes, we believe protection should be both powerful and refreshingly simple because if security feels too hard to use, people will not use it. That is why our aspiration is always to stay one step ahead: cutting through the noise, stopping threats others miss, and delivering peace of mind in an unpredictable digital world.

All open roles at Malwarebytes