SimSpace, founded in 2015, is revolutionizing cybersecurity with their elite cyber range platform. As a Senior Software Engineer on the User Emulation and Attack Team, you'll be at the forefront of developing microservices that power realistic cyber attack simulations. This role combines technical leadership with hands-on development, requiring expertise in Java/Kotlin, Spring Boot, and containerization. You'll be responsible for designing scalable systems, mentoring team members, and ensuring high-quality code delivery. The position offers a competitive salary range of $150,000-$210,000, comprehensive benefits, and the flexibility of remote work. The ideal candidate brings 8+ years of software development experience and a passion for building secure, resilient systems. SimSpace provides an inclusive, growth-oriented environment with a strong focus on their mission of protecting critical infrastructure through advanced cybersecurity solutions. Their tech stack includes Python, Golang, Kotlin, Java, and Kubernetes, offering opportunities to work with cutting-edge technologies while making a meaningful impact in the cybersecurity field.