(Top 25 AI Companies 2025) Sr. Software Engineer-Linux

Stellar Cyber is a fast-growing Cybersecurity company focused on delivering holistic cyberattack protection to organizations while significantly reducing total costs of ownership with its innovative Open XDR (eXtended Detection and Response) platform based on advanced ML and security technologies. Stellar Cyber has been recognized by Gartner as one of the leading XDR players.

To accelerate our growth, we are seeking a talented Sr. Software Engineer-Linux with startup passion, a can-do attitude, and a desire to make an impact, while building a future for themselves and Stellar Cyber. If you are excited to be part of a very fast-growing team with lots of opportunities, Stellar Cyber is a great place to grow your career.

Responsibilities:

• Build robust, fault-tolerant, low footprint sensor software running on different Linux environments, e.g., Ubuntu, CentOS, or Red Hat Enterprise, which could be on cloud or on-premises.
• Design and write high-quality and high-performance code in a multi-threaded/multi-process environment to bring customer’s data into our XDR platform.
• Keep improving the performance of existing sensor software to use less host resources.
• Write a script to deploy the Linux sensor in the customer’s environment.
• Independently analyze and resolve sensor related customer cases.

• Bachelor with 5+ years of working experience or master/PhD with 2+ years of working experience in cyber security related fields.

• Familiar with at least two of the following languages: Python, C/C++, Shell script, Go, Ruby, or Java.
• Familiarity with network protocols, e.g., VXLAN, ICMP, TCP/IP, DNS, TLS, and HTTP.
• Experience on performance tuning on Linux systems.
• Experience on Network IDS, IPS and Network Security Monitoring engines, like Suricata, is a plus.
• Great team player and have a can-do attitude.
• Self-motivated with a strong sense of ownership and the ability to work independently in a high-energy, fast paced, rapidly changing environment.
• Excellent verbal, writing, and interpersonal communication skills.
• Startup working experience is a plus.