Jobs at Castellum, Inc.

Leads advanced data analysis supporting U.S. Department of Justice initiatives. Responsibilities include designing dashboards and reports, architecting data flows, developing SQL/Python/SSIS analytics solutions, performing ArcGIS spatial analysis, monitoring system performance, maintaining data integrity, and mentoring junior analysts. The role collaborates with legal, IT, operational, and management stakeholders to optimize enterprise systems and support decision-making, compliance, and mission objectives.

Provides hands-on mechanical engineering support for Department of Defense systems across development, qualification, production, and sustainment. Conducts hardware and manufacturing investigations, resolves technical issues, reviews engineering documentation and drawings, prepares technical reports and procedures, supports quality activities, and coordinates cross-functional corrective actions. Works directly with engineers, technicians, manufacturing, quality, vendors, and customers in a manufacturing and technical environment.

Designs, develops, debugs, tests, and sustains C# software applications supporting military command and control, cryptologic, weapons, and intelligence systems. Performs unit, integration, verification, validation, lab, and operational testing; troubleshoots technical issues; creates documentation and reports; and collaborates with government and contractor teams in Agile environments. Requires an active Secret clearance and on-site support at Joint Base MDL.

Provides onsite end-user IT support for DoD operations, managing help desk tickets, troubleshooting Windows 11, Microsoft 365, Teams, network connectivity, and system access issues. The role performs basic network fault isolation, patching, cybersecurity hardening, DISA STIG compliance, and required documentation. Candidates need at least three years of IT support experience, Security+ certification, DoD cyber workforce compliance, U.S. citizenship, and an active Secret clearance or ability to obtain an interim Secret clearance before starting.

Leads Federal Government proposal efforts from pre-RFP planning through submission. Develops compliance matrices, schedules, outlines, review plans, and proposal content; coordinates cross-functional contributors, manages deadlines, facilitates reviews, and ensures compliant, customer-focused responses. Supports capture through market and competitor research, teaming, industry events, and opportunity analysis. Maintains proposal resources and contributes to lessons learned and process improvement.

Designs, automates, secures, and maintains Red Hat Enterprise Linux platform environments supporting defense and intelligence missions. Responsibilities include Linux administration, Infrastructure-as-Code automation, system hardening, patching, STIG and RMF compliance, Windows lifecycle support, performance monitoring, troubleshooting, storage management, platform integration, documentation, risk management, and modernization. The role collaborates with software, systems engineering, cybersecurity, and testing teams in secure government environments.

Designs, automates, administers, secures, and sustains Windows platform infrastructure across development, test, and production environments. Responsibilities include Windows Server, Active Directory, Group Policy, PowerShell automation, patching, vulnerability remediation, performance optimization, STIG/RMF compliance, documentation, and lifecycle management. The role collaborates with software, systems engineering, cybersecurity, and testing teams to support secure defense and intelligence missions.

Leads end-to-end migrations from Relativity Server to Relativity Air and Everlaw, overseeing planning, execution, validation, documentation, quality assurance, automation, and stakeholder coordination. Develops migration SOPs, improves workflows, provides technical escalation support, and ensures data integrity. Supervises and mentors two System Analysts while promoting best practices across litigation support and e-discovery projects.

Designs, analyzes, monitors, and optimizes RF systems supporting DoD persistent spectrum monitoring. Responsibilities include evaluating antennas, receivers, signal paths, propagation, interference, and system performance; conducting RF modeling and signal analysis; recommending mitigation strategies; ensuring regulatory compliance; preparing technical documentation and test plans; and advising DoD stakeholders and engineering teams. The role requires an active Secret clearance and on-site support, and is contingent on contract award and funding.

Lead lifecycle logistics support for airborne ISR systems. Responsibilities include developing logistics analyses and documentation, controlling and auditing inventory and Government Furnished Material, supporting procurement, managing maintenance and configuration changes, performing quality assurance, preparing status reports, and coordinating with engineering, acquisition, and supply chain teams. The role requires at least ten years of airborne ISR logistics experience, proficiency with Microsoft Office and Adobe, and a Secret clearance. Required travel is included.

Leads cybersecurity authorization and accreditation for complex Department of Defense systems. Develops and maintains RMF/ATO packages in eMASS, defines authorization boundaries, maps security controls, coordinates vulnerability assessments and STIG evaluations, manages POA&Ms and continuous monitoring, and supports system design through sustainment. Collaborates with government cybersecurity leaders, engineers, vendors, Security Control Assessors, and Authorizing Officials to resolve risks and provide evidence for successful accreditation.

Lead Digital Division programs supporting a Department of Navy customer, managing cost, schedule, technical performance, budgets exceeding $20 million, staffing, contracts, risks, dependencies, and customer priorities. Coordinate software licensing, funding, contract modifications, engineering and IT teams, and senior stakeholder communications. The role requires translating technical details into executive reporting while ensuring compliance with DoD acquisition policies and successful delivery of mission-critical capabilities.

Supports government acquisition and lifecycle management of calibration standards, electronic test equipment, and precision measurement systems. Conducts market research, technical evaluations, product comparisons, cost estimates, and procurement documentation. Prepares CDRLs, IGCEs, SAP procurement documents, technical reports, and briefings while coordinating with engineering teams. Reviews technical specifications and vendor documentation, supports equipment demonstrations, and maintains configuration and lifecycle records. The role supports NAVAIR calibration and test equipment programs and requires eligibility for a Secret clearance.

Coordinate eDiscovery activities across litigation, investigations, and compliance matters for the U.S. Department of Justice. Manage custodial interviews, data mapping, ESI collection, vendor and technical-team coordination, data ingestion, quality control, client updates, and Relativity workspace maintenance. Support planning and tracking across multiple matters while applying EDRM and litigation-support expertise. The role requires five or more years of complex eDiscovery experience and onsite work two days weekly in Washington, DC.