Senior Full-Stack Developer

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.

Malwarebytes is looking for..

for a experienced Full-Stack Developer to build on the core product Identity Cloud to unlock the power of our threat data platform for security professionals. You’ll get to work with a highly collaborative, friendly, inclusive, and diverse group of engineers, designers, and Product Managers. You will also work with other engineering teams across Malwarebytes to design and build high-performance applications.

What You Will Do:

• Build and scale our core product powering our security platform
• Design and evolve GraphQL APIs for performant, flexible data access
• Solve complex technical challenges across distributed systems
• Write clean, reliable, and high-quality code with strong testing practices
• Apply AI/ML-driven approaches to improve detection, automation, or developer productivity
• Collaborate across engineering, product, and security teams

Skills You'll Need to Have:

• Proven experience building frontend applications and UI components with TypeScript and React
• Solid backend experience with API development (Ruby, Node, Python, or Java)
• Hands-on experience with GraphQL and understanding of REST principles
• Knowledge of API scalability, performance, and real-time patterns (WebSockets a plus)
• Familiarity with build, packaging, and deployment (Webpack/Vite, npm/yarn, Docker, CI/CD)
• Strong computer science fundamentals and ability to solve complex problems
• Deep focus on code quality, testing, and maintainability
• Passion for AI technologies, with experience integrating LLMs, agents, or AI features into production systems

Perks & Benefits:

• Comprehensive medical, dental, and vision insurance coverage, subject to change by country/region
• Wellness programs
• Winter break
• A great work environment that supports growth, development, and well-being

Salary Range: Up to 70K EUR annually, depending on your experience, technical depth, and interview performance.

An opportunity to do something great for yourself and the world