Castellum Inc

Job Description Job Description JOB SUMMARY Specialty Systems, Inc. has an opening for a Windows Platform Engineer to join our team of technical professionals supporting Government customers and national security mission requirements. In this role, you will support the design, implementation, automation, and sustainment of Windows-based platform environments supporting mission-critical defense systems and software-intensive applications. The position involves working within Government-provided environments while supporting secure infrastructure operations, platform modernization, DevSecOps integration, and enterprise system lifecycle management activities. As a member of the Specialty Systems team, you will contribute directly to secure and reliable platform solutions supporting critical defense and intelligence missions. This position is located at our customer site location. In this position, you will work our customer's Compressed Work Schedule which consists of working four 9-hour days (M-Th) and an 8-hour day (F) for the first week of a cycle followed by four 9-hour days (M-Th) and being off on the second Friday for the second week of a cycle. This results in a 3-day weekend every other week! RESPONSIBILITIES Design, implement, and maintain Windows-based platform infrastructure across development, test, and production environments. Engineer, automate, and document system provisioning, configuration management, and deployment processes. Administer and maintain Windows Server environments, including Active Directory, Group Policy, and domain services. Implement and maintain system security configurations in compliance with DoD cybersecurity requirements (STIGs, RMF). Monitor system performance, troubleshoot issues, and optimize platform reliability and availability. Coordinate patching, updates, vulnerability remediation, and lifecycle maintenance of Windows systems. Collaborate with Agile software, systems engineering, cybersecurity, and automated/manual test teams to support platform integration and delivery. Maintain documentation, system baselines, and architecture artifacts to support program requirements. Identify risks, recommend improvements, and support modernization initiatives across platform environments. QUALIFICATIONS : Bachelor's degree in Computer Science, Engineering, Information Systems, or a related technical field is preferred. Equivalent work experience may be considered. Active Secret security clearance or the ability to obtain an interim Secret clearance within approximately four weeks after submission of the clearance application. 5+ years of experience supporting Windows-based enterprise environments or platform engineering roles. Security+ CE or ability to obtain within 3-6 months. Technical Requirements: Strong experience with Windows Server (2016/2019/2022), Windows 10/11, Active Directory, and Group Policy. Experience with PowerShell scripting and automation. Working knowledge of networking concepts and system security. Experience implementing and maintaining compliance standards (STIG, RMF, or similar). Preferred Qualifications: Experience supporting Navy or DoD programs. Experience with cloud platforms. Familiarity with DevSecOps practices and CI/CD pipelines. Experience with Jira, Confluence, Git, and artifact/configuration repositories. Experience with containerization technologies (Docker, Kubernetes on Windows). Microsoft certifications (e.g., Windows Server Hybrid Administrator, Microsoft Server Administrator). Experience with virtualized environments (VMware, VirtualBox, Hyper-V). Familiarity with Infrastructure-as-Code tools (Ansible, Terraform, or similar). Specialty Systems, Inc. provides equal employment opportunity (EEO) to all employees and applicants without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability status, genetic information, marital status, ancestry, protected veteran status, or any other characteristic protected by applicable federal, state, and local laws and offers equal opportunity for VEVRAA Protected Veterans. Specialty Systems, Inc. will not discriminate against employees and job applicants who inquire about, discuss, or disclose compensation information. Reasonable accommodation that do not cause an undue hardship on the company may be made to enable individuals with disabilities to perform essential functions, as long as that would not hinder or prevent performance of duties or be of a safety concern. PHYSICAL DEMANDS: The physical demands described here are representative of those that must be met by an employee to successfully perform the essential functions of the job. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions. While performing the duties of this job, the employee is required to reach with hands and arms. The employee is frequently required to sit, stand and walk. The employee may be required to move ten pounds and could occasionally lift or move up to twenty-five pounds. Disclaimer: The listed duties are not intended to serve as a comprehensive list of all duties performed by all employees in this classification, only a representative summary of primary duties and responsibilities.