Senior Software Integration Engineer-API design

Title:

Belong. Connect. Grow. with KBR!

KBR’s National Security Solutions team provides high-end engineering and advanced technology solutions to our customers in the intelligence and national security communities. In this position, your work will have a profound impact on the country’s most critical role – protecting our national security.

Why Join Us?

• Innovative Projects: KBR’s work is at the forefront of engineering, logistics, operations, science, program management, mission IT and cybersecurity solutions.

• Collaborative Environment: Be part of a dynamic team that thrives on collaboration and innovation, fostering a supportive and intellectually stimulating workplace.

• Impactful Work: Your contributions will be pivotal in designing and optimizing defense systems that ensure national security and shape the future of space defense.

Role summary

KBR is seeking a highly experienced Senior Software Engineer to join our team in Beavercreek, OH. The ideal candidate will be a Front End (UI) expert with a Secret DoW clearance.

Key responsibilities

• Build the “single pane of glass” for developers and consumers intuitive workflows for modeling and development setup, orchestration, monitoring, and analysis

• Translate complex simulation concepts (timing, state‑of‑play, user inputs) into usable experiences

• Design and implement modular React/TypeScript front‑ends (or equivalent) with reusable components and UX patterns tailored to planners

• Integrate with platform REST/gRPC/GraphQL APIs for model catalogs, scenario design, job status, data & metadata access

• Visualize timing/synchronization, state‑of‑play, and entity interactions; real‑time status via WebSockets/SSE

• Build secure UI flows: authentication/authorization (OIDC/OAuth2), role‑based views, audit logging

• Collaborate with API/platform/HPC teams to evolve UX based on mission workflows and VV\&A needs

Work Environment:

• Location: On-site/Hybrid/Remote

• Travel Requirements: 15%

• Working Hours: Standard

Qualifications:

Required:

• 8+ years of Software Engineering experience with 4–6+ years building production SPA front‑ends (React/TypeScript preferred; Angular/Vue acceptable)

• Strong API integration skills (REST/GraphQL), state management (Redux/Zustand), and real‑time patterns

• UI/UX for complex domains; accessibility (WCAG) and performance optimization

• Ability to obtain a DoW Secret clearance

Desired:

• Data visualization (D3, Three.js/WebGL) for entity timelines, maps, and campaign metrics

• Experience with secure environments (Content Security Policy, hardened builds) and design systems

• Comfortable delivering UI assets for multi‑environment deployments

• Active Top Secret clearance with SCI eligibility

Ready to Make a Difference?

If you’re excited about making a significant impact in the field of space defense and working on projects that matter, we encourage you to apply and join our team at KBR. Let's shape the future together.

KBR Benefits

KBR offers a selection of competitive lifestyle benefits which could include 401K plan with company match, medical, dental, vision, life insurance, AD&D, flexible spending account, disability, paid time off, or flexible work schedule. We support career advancement through professional training and development.

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.