Sr. Full-Stack Engineer

About the RoleCulmen International is seeking a Senior Full-Stack Engineer to support secure, mission-ready software development for USPACOM J32 targeting and mission-planning workflows.Must be located in the NCR and able to commute onsite to the Mark Center.As the Senior Full-Stack Engineer, you will design, develop, integrate, and field secure software applications that support targeting and mission-planning operations. You will build user-facing and backend services, develop system integrations, implement auditability and security controls, and collaborate directly with operators and subject matter experts to translate complex operational processes into intuitive, mission-focused software solutions. This role requires full software development lifecycle expertise, including requirements analysis, architecture, testing, deployment, and sustainment in classified environments.What You’ll Do in Your New RoleDesign, build, and field secure, mission-ready software supporting USPACOM J32 joint targeting and fires-planning workflows.Develop operator-facing applications for Target-Effect Pairing (TEP), including ranked recommendations, alternative pairings, constraint-driven tradeoffs, and explanations.Build backend services for workflow orchestration, recommendation processing, review and adjudication, approval routing, deconfliction, and draft force-assignment support.Translate Joint Fires and Targeting SME input into intuitive workflows supporting Phase 3 Capabilities Analysis and Phase 4 Commander’s Decision and Force Assignment.Implement human-machine teaming controls that allow authorized users to accept, reject, modify, and route recommendations while preserving human authority over inherently governmental decisions.Create traceable and auditable software that records source data, model or ruleset versions, recommendation history, user actions, timestamps, and approval rationale.Integrate with Government-designated systems—including Maven Smart System (MSS), object-management systems, simulation services, and command-and-control interfaces—through secure APIs and event-driven patterns.Build interfaces that clearly communicate inventory constraints, timing and availability limitations, assumptions, confidence indicators, infeasible conditions, and recommended next steps.Develop resilient services capable of supporting single-target, multi-target, and constrained-resource planning scenarios in connected and degraded operating conditions.Implement role-based and attribute-based access controls, classification-aware data handling, secure service communication, and tamper-evident audit capabilities.Create automated unit, integration, regression, performance, and security tests suitable for Government acceptance and independent test and evaluation.Partner directly with J32 operators, Joint Fires and Targeting SMEs, weaponeering experts, data engineers, security teams, and Government system owners.Participate in sprint planning, backlog refinement, operator demonstrations, technical reviews, and fielding activities in Government-designated environments.Produce maintainable code, API documentation, architecture decision records, release notes, runbooks, and transition materials supporting Government operation and sustainment.Required Qualifications7+ years of professional full-stack software engineering experience, including delivery of complex, data-intensive applications.Demonstrated experience supporting one or more phases of the intelligence targeting lifecycle, joint targeting process, fires planning, deliberate or dynamic targeting, operational planning, intelligence analysis, command-and-control (C2), or decision-support systems within a Combatant Command, Service Component, Intelligence Community, or DoD operational environment.Strong experience with modern front-end frameworks, backend services, RESTful APIs, event-driven architectures, relational or document databases, and automated testing.Experience building workflow, mission-planning, decision-support, command-and-control, or operational intelligence applications.Ability to transform complex operational and doctrinal processes into usable, explainable software.Experience with data provenance, audit logging, workflow state management, access controls, and configuration or model versioning.Familiarity with containerized deployments, CI/CD pipelines, infrastructure-as-code, observability, and secure cloud or on-premises environments.Demonstrated ability to collaborate with operational users and deliver incrementally through frequent demonstrations and feedback.Understanding of human-centered design for high-consequence workflows where recommendations must remain transparent, reviewable, and reversible.Excellent written and verbal communication skills, including the ability to explain technical decisions to operational and Government stakeholders.Eligibility for TS/SCI; active clearance strongly preferred.Ability to support on-site engagement with USPACOM J32 operators as mission needs require.Desired QualificationsExperience with joint targeting, Joint Fires, weaponeering, target-effect pairing, force assignment, or course-of-action analysis.Experience working in DoD classified environments, disconnected or restricted networks, and security-compliance-driven settings.Experience integrating with Maven Smart System, operational data repositories, simulation engines, or government interfaces of record.Experience developing optimization or recommendation systems that present alternatives, constraints, and explainable rationale.Experience supporting independent T&E, operational acceptance testing, and deployment of software into government production environments.About the CompanyCulmen International is committed to enhancing international safety and security, strengthening homeland defense, advancing humanitarian missions, and optimizing government operations. With experience in over 150 countries, Culmen supports our clients to accomplish critical missions in challenging environments.Exceptional Medical/Dental/Vision Insurance, premiums for employees are 100% paid by Culmen, and dependent coverage is available at a nominal rate (including same or opposite sex domestic partners) 401k – Vested immediately and 4% matchLife insurance and disability paid by the companySupplemental Insurance AvailableOpportunities for Training and Continuing Education12 Paid HolidaysTo learn more about Culmen International, please visit All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, pregnancy, genetic information, disability, status as a protected veteran, or any other protected category under applicable federal, state, and local laws.Job SummaryID: 2026-4571Position Type: Regular Full-Time W2Clearance Requirements: Top Secret with SCI eligibility