Principal Software Engineer (MacOS) - Remote EU

Malwarebytes; Spain; Remote; EUR 90,000 - 100,000; Full time

Benefits offered by this job

Health insurance

Referral bonus

Wellness program

Generous time off

Impactful work

Job summary

ThreatDown is seeking a Principal Software Developer (MacOS) to build enterprise-grade endpoint protection for MacOS and to contribute to ThreatDown initiatives. You will work on cutting-edge malware defense with a high-performance team in an Agile startup-like environment.

Ideal candidates have strong object-oriented design skills, proficiency in Swift/Objective-C, and deep knowledge of macOS architectures, security, and deployment requirements, including code signing and notarization.

Qualifications

• Experience with macOS development and Apple frameworks.
• Proficient in Swift and/or Objective-C.
• Strong understanding of macOS system architecture and internals.
• Familiarity with macOS security and distribution requirements, including code signing, entitlements, sandboxing, privacy permissions, and notarization.

Responsibilities

• 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

Object-oriented

Swift

Objective-C

macOS development

Debugging & optimization

Agile teamwork

Code signing

Security & distribution

Tools

Apple System Extensions

Network Extension frameworks

Xcode

Instruments

LLDB

Foundation

Job description

About ThreatDown

ThreatDown is a leader in elite Managed Detection and Response (MDR), purpose-built to empower resource-constrained security teams with high-efficacy protection, without the complexity. As attacks grow faster and more automated, ThreatDown pairs proprietary AI and threat research with analyst judgment to deploy in minutes to deliver high-efficacy protection. Recognized by MRG Effitas, AVLab, and G2, ThreatDown scales security operations to intercept sophisticated attacks at the speed of modern threats. At ThreatDown, you’ll join a team driven by innovation, resilience, and a passion for empowering businesses to thrive securely. If you're ready to make a real impact in cybersecurity, we’d love to meet you.

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.

Compensation

90,000 to 100,000 Euros

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)