Peraton is seeking a Senior Linux System Administrator to support our high-impact Cyber Intelligence team in San Antonio, TX. Join us at the forefront of national security as you help operate and secure critical cloud-based repositories in a fast-paced, mission-driven environment where your skills directly support global operations. This role is ideal for someone who thrives in dynamic environments, enjoys solving complex technical problems, and is passionate about contributing to real-world cybersecurity missions. You’ll work hands-on with large-scale Hadoop and Accumulo clusters, helping maintain the stability, performance, and security of our cloud systems.