Senior C Developer

About us:

Action1 is an autonomous endpoint management platform trusted by many Fortune 500 companies. Cloud-native, infinitely scalable, highly secure, and configurable in 5 minutes—it just works and is always free for the first 200 endpoints, with no functional limits. By pioneering autonomous OS and third-party patching with peer-to-peer patch distribution and real-time vulnerability assessment without needing a VPN, it eliminates routine labor, preempts ransomware and security risks, and protects the digital employee experience.

In 2025, Action1 was recognized by Inc. 5000 as the fastest-growing private software company in America. The company is founder-led by Alex Vovk and Mike Walters, American entrepreneurs who previously founded Netwrix, a multi-billion-dollar cybersecurity company.

About the Role:

We are seeking an experienced Senior C++ Developer to take a leading role in developing and supporting a cross-platform endpoint agent that runs on Windows, Linux, and macOS. This agent is a key component of our platform, responsible for executing patching workflows, communicating with the cloud backend, collecting system data, and enforcing policies.

You will work closely with a high-caliber team of engineers to ensure that the agent is performant, secure, and reliable across all supported operating systems.

What you'll do

• Design, develop, and maintain a robust, efficient, and secure cross-platform agent in modern C++.
• Ensure seamless functionality and consistent behavior across Windows, Linux, and macOS environments.
• Build integrations with OS-level APIs and services related to patching, system info gathering, and task execution.
• Optimize agent performance for different platforms and deployment scenarios.
• Handle communication with the cloud backend using secure and efficient protocols.
• Stay current on system security best practices and OS updates that affect agent behavior.

Requirements :

• Strong proficiency in C++ (ideally C++17 or later), with solid cross-platform development experience.
• Good understanding of system-level programming on at least two of the following: Windows, Linux, macOS.
• Experience in multithreading and asynchronous programming
• Experience in network programming (e.g., sockets, REST, HTTP/HTTPS)
• Writing clean, portable, and maintainable code
• Familiarity with version control (Git) and CI/CD pipelines.
• Experience in developing and debugging production-ready software for heterogeneous environments.
• Strong problem-solving skills and ability to work independently.

Nice to Have:

• Experience working with OpenSSL, secure communication protocols, or certificate handling.
• Background in endpoint security, patching, or systems management.
• Experienc