Sr. Full-Stack Engineer

Culmen International; Alexandria (VA); On-site; USD 140,000 - 180,000; Full time

Job summary

Culmen International is seeking a Senior Full-Stack Engineer to design, develop, and field secure software for USPACOM J32 targeting and mission-planning workflows. You will build user-facing and backend services, integrate with government systems, and ensure auditable, secure operations in classified environments.

You will collaborate with operators and SMEs to translate complex processes into intuitive, mission-focused software while maintaining human authority over critical decisions.

Qualifications

• Full software development lifecycle expertise in secure, classified environments.
• Experience 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.
• Experience integrating with government interfaces and secure systems.

Responsibilities

• Design, develop, integrate, and field secure software applications for targeting and mission-planning workflows.
• Build operator-facing applications for Target-Effect Pairing (TEP) with ranked recommendations and explanations.
• Develop backend services for workflow orchestration, recommendation processing, review and adjudication, and approval routing.
• Implement RBAC/ABAC, secure service communication, and tamper-evident audit capabilities.
• Create traceable software recording data sources, model versions, recommendation history, and decision rationale.
• Collaborate with J32 operators, SMEs, data engineers, security teams, and government system owners.
• Produce maintainable code, API documentation, and release notes for government operation and sustainment.

Job description

Culmen 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.

• Design, 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.
• Experience 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.