Oneleet · 5 months ago
Application Software Engineer (Endpoint Security)
United States
Full-time
Remote
Mid, Senior Level
$115K/yr - $180K/yr
6+ years expOneleet is a Y Combinator-funded cybersecurity startup focused on simplifying effective cybersecurity for companies. The Application Software Engineer will develop and maintain a cross-platform endpoint security agent, ensuring robust security measures and seamless integration with the cloud platform.
Artificial Intelligence (AI)ComplianceCyber SecurityEnterprise SoftwarePenetration TestingSaaS
Responsibilities
Design and implement cross-platform agent functionality for Windows, macOS, and Linux using Go and JavaScript
Build low-level configuration automation and system monitoring capabilities that interact with OS-specific APIs and security frameworks
Develop secure communication protocols between agents and our cloud platform using gRPC or REST APIs
Implement real-time threat detection and response capabilities at the endpoint level
Create robust update and deployment mechanisms that ensure agents remain current without disrupting user workflows
Build telemetry collection systems that provide visibility into device security posture while respecting privacy
Collaborate with the security team to implement new detection rules and compliance checks
Ensure agent performance is optimized to minimize system resource usage
Develop comprehensive testing strategies for multi-OS compatibility
Create tools and dashboards for monitoring agent health and deployment status across thousands of endpoints
Qualification
Required
5+ years of professional software development experience with a focus on systems programming or security software
Strong experience with Go and JavaScript for building production-grade applications
Deep understanding of operating system internals across Windows, macOS, and Linux
Experience with low-level configuration automation and system administration across multiple platforms
Proven experience with gRPC or REST API design and implementation
Experience building software that runs with elevated privileges while maintaining security
Strong understanding of endpoint security concepts and best practices
Experience with cross-platform development challenges and solutions
Excellent debugging and troubleshooting skills for complex system-level issues
Preferred
Experience with Electron for building cross-platform desktop applications
Experience with Windows APIs, macOS system frameworks, or Linux kernel interfaces
Background in cybersecurity, particularly endpoint detection and response (EDR) or mobile device management (MDM)
Experience with certificate management and cryptographic operations
Familiarity with compliance frameworks (SOC2, ISO27001, HIPAA)
Experience with real-time data streaming and event processing
Bachelor's or Master's degree in Computer Science, Cybersecurity, or related field
Benefits
Comprehensive benefits packages designed to support your health and well-being 🩺
Competitive comp & equity 💸
Plenty of PTO 🏝️
Floating holidays to honor the days that matter most to you 🎉
Flexible remote work 💻
Quarterly off sites to cool places (Amsterdam, Italy etc) ✈️
Company
Oneleet
Oneleet offers a cybersecurity platform for automated security and compliance.
51-200 employees
Funding
Current Stage
Growth StageTotal Funding
$35.5MKey Investors
Dawn Capital
2025-10-02Series A· $33M
2022-08-22Seed· $2.5M
Leadership Team
Bryan Onel
Chief Executive Officer
Recent News
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