Senior Software Engineers and Front-End Engineers

Title:

Belong. Connect. Grow. with KBR.

Program Overview

At KBR, our National Security Solutions team delivers advanced engineering and mission-critical technology to customers across the intelligence and national security communities. In support of our Novastar program, we are expanding our software engineering capability and seeking high-caliber talent to join a growing, technically elite team.

We are hiring:

• Senior Software Engineers
• Front-End (UI) Engineers
• Software Developers

Why KBR?

Mission-Focused Innovation
Work at the leading edge of engineering, mission IT, cybersecurity, and advanced defense systems.

Collaborative Engineering Culture
Join a high-performance environment that values technical rigor, knowledge sharing, and continuous innovation.

National Impact
Contribute to the architecture and optimization of systems that directly support national security and next-generation defense capabilities.

Position Overview

KBR is seeking experienced Senior Software Engineers and Front-End Engineers to support mission-critical systems in the Dayton, Ohio area. The ideal candidate is a front-end (UI) expert with active DoD clearance and deep experience building secure, scalable platforms in highly controlled environments.

Core Responsibilities

Platform & Kubernetes Engineering

• Architect and operate multi-cluster Kubernetes environments (control, data, CI/CD, and observability planes) with strong isolation and zero-trust security defaults.
• Lead implementation of service mesh technologies (e.g., Istio) to enable mTLS, traffic shaping, and fine-grained authorization policies.
• Manage ingress configurations (Gateways/VirtualServices) and east-west traffic policies.
• Develop and maintain Kubernetes CRDs, controllers, and operators to reconcile developer intent into runtime infrastructure.
• Implement network policy enforcement (eBPF/Cilium), secrets management, RBAC/ABAC, and policy-driven automation.
• Establish and maintain observability stacks (metrics, logs, traces) and SLO-driven reliability standards.
• Support high availability (HA), backup/restore strategies, and disaster recovery (DR) planning.
• Enable secure air-gapped deployments and software supply chain integrity (container images, SBOMs, provenance).

Front-End & UX Engineering

• Build a “single pane of glass” developer and consumer interface to streamline modeling, orchestration, monitoring, and analytics workflows.
• Design and implement modular front-end applications using React/TypeScript (or equivalent frameworks).
• Develop reusable components and UX patterns tailored to operational planners and mission users.
• Integrate with REST, gRPC, and GraphQL APIs supporting model catalogs, scenario design, job orchestration, and metadata access.
• Implement real-time visualization of timing, synchronization, and entity interactions via WebSockets or Server-Sent Events.
• Build secure UI flows incorporating OIDC/OAuth2 authentication, role-based access control, and audit logging.
• Translate complex simulation constructs (timing models, state-of-play logic, user-driven inputs) into intuitive, mission-ready user experiences.
• Collaborate closely with API, platform, and HPC engineering teams to continuously refine workflows aligned to mission validation, verification, and accreditation (VV&A) requirements.

Qualifications

• Active DoD security clearance required.
• Advanced experience with Kubernetes in multi-cluster environments.
• Strong background in service mesh architecture (Istio or equivalent).
• Proficiency in modern front-end frameworks (React/TypeScript preferred).
• Experience building secure systems in connected and air-gapped environments.
• Deep understanding of zero-trust architectures and policy-driven security.
• Familiarity with high-performance computing (HPC) and simulation-driven systems preferred.

If you are passionate about building secure, scalable, and mission-critical platforms in support of national security objectives, we encourage you to apply. A member of our recruiting team will follow up directly.

Belong, Connect and Grow at KBR
At KBR, we are passionate about our people and our Zero Harm culture.  These inform all that we do and are at the heart of our commitment to, and ongoing journey toward being a People First company.  That commitment is central to our team of team’s philosophy and fosters an environment where everyone can Belong, Connect and Grow. We Deliver – Together. 

KBR is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, disability, sex, sexual orientation, gender identity or expression, age, national origin, veteran status, genetic information, union status and/or beliefs, or any other characteristic protected by federal, state, or local law.