ThreatDown is looking for.. We’re not looking for people who know all the answers; we want people who can think creatively and are not afraid to bring forward new ideas. The problems we solve are meaningful, exciting, and constantly-evolving your code will support thousands of enterprises customers from emerging threats and restore confidence in using their computers. Our business product team is looking for a Principal Software Developer (MacOS), ready for the challenge of delivering great business products to thousands of users. What You Will Do: Develop new and exciting products in the fight against malware Build cutting edge Enterprise grade endpoint protection for MacOS Play a key role in designing and developing tools to support all the ThreatDown initiatives Collect and process data and metrics to track emerging threats so we can keep one step ahead of the bad guys Support your fellow developers; proactively communicate, document, unit-test, and peer review Work collaboratively and effectively with a range of people in an Agile environment Create superior results while building new skills Work as a part of team to ensure everyone meets their goals Skills You'll Need to Have:



Understanding of Object-Oriented development practices Experience working with Apple’s System Extensions and Network Extension frameworks Ability to work on a high-performance team in a high-tech startup or startup-like environment Working knowledge of Swift and/or Objective-c coding languages Experience with backend development on macOS, including data management, networking, and system integrations Ability to debug and optimize macOS applications for performance Familiarity with foundational macOS frameworks and development tools, including Foundation, Xcode, Instruments, and LLDB Strong understanding of macOS system architecture and internals Familiarity with macOS security and distribution requirements, including code signing, entitlements, sandboxing, privacy permissions, and notarization Ability to debug, profile, and optimize macOS applications for performance, reliability, and resource efficiency Good To Have: Understanding of cybersecurity principles, including least privilege, defense in depth, secure-by-default design, threat modeling, and attack-surface reduction Familiarity with secure coding practices, vulnerability management, and common application and network security risks Familiarity with Apple platform deployment and management technologies, including MDM and configuration profiles Perks & Benefit: Comprehensive medical, dental, and vision insurance coverage Employee Referral Bonus Program Wellness programs Comprehensive Time Off policy An opportunity to do something great for yourself and the world (Benefits and Perks subject to change by country/region)

📌 Principal Software Engineer (España)
🏢 Malwarebytes
📍 España