Senior C++ Developer

About us

Action1 is an autonomous endpoint management platform that is 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 - AEM's foundational use case - through peer-to-peer patch distribution and real-time vulnerability assessment without needing a VPN, it eliminates costly, time-consuming routine labor, preempts ransomware and security risks, and protects the digital employee experience. Trusted by thousands of enterprises managing millions of endpoints globally, Action1 is certified for SOC 2 and ISO 27001.

The company is founder-led by industry veterans Alex Vovk and Mike Walters, American entrepreneurs who founded Netwrix, which has grown into a multi-billion-dollar industry-leading 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.
• Experience with cross-platform build systems (e.g., CMake).
• Proficiency in Bash, PowerShell
• Familiarity with cloud services such as AWS, Azure, or GCP.

What We Offer

• Fully remote work, giving you the flexibility you need in the modern world
• A multitude of interesting challenges and opportunities.
• Non-stop professional growth and learning of new technologies.
• Stable income and flexible working hours, opportunities for promotion.
• Friendly and professional peers.