GNC Engineer - Hybrid (TS/SCI Clearance)

Trinzic; Houston (TX); Remote; USD 134,000 - 201,000; Full time

Job summary

KBR is seeking a GNC Engineer to support design, development, testing, and real-time operation of advanced aerospace systems. This role bridges engineering development and flight execution, requiring deep technical depth and the ability to translate complex system behavior into actionable decisions.

The ideal candidate has experience in flight dynamics, control systems, software interaction, and operational environments. The position is remote with limited travel to onsite locations.

Qualifications

• TS/SCI clearance required for employment.
• Bachelor’s degree in aerospace or mechanical/related field with 10+ years of experience.

Responsibilities

• GNC system development & integration.
• Design, analysis, and verification of guidance, navigation, and control algorithms.
• Review flight software design to improve performance and operability.
• Monitor vehicle performance and provide time-critical recommendations during operations.
• Develop operator displays, telemetry utilization strategies, and command interfaces.
• Testing and validation of telemetry, command pathways, and system responses.

Skills

TS/SCI Clearance

Control systems

Orbital mechanics

Guidance algorithms

Real-time systems

Embedded software

Telemetry analysis

Decision making

Education

Bachelor’s degree in aerospace or mechanical engineering

Job description

Title:

GNC Engineer - Hybrid (TS/SCI Clearance)

At KBR, we deliver science, technology and engineering solutions to governments and companies around the world. KBR employs approximately 37,000 people worldwide with customers in more than 85 countries and operations in over 28 countries. KBR is proud to work with its customers across the globe to provide technology, value-added services, and long-term operations and maintenance services to ensure consistent delivery with predictable results.

Trinzic is the future independent company to be created through the planned spin-off of KBR's Mission Technology Solutions business, expected in January 2027. Our people work at the frontier of what is possible, delivering solutions in challenging environments and advancing some of the world's highest-priority national security and space missions.

Backed by decades of mission success, deep expertise, and trusted partnerships, Trinzic will launch as a global organization with more than 18,000 employees supporting customers around the world. Join us at a defining moment and help shape the future of a company built to tackle complex challenges and make a meaningful impact.

Candidates who join KBR's Mission Technology Solutions business before the spin-off will transition to Trinzic when the separation is complete and will not need to reapply for employment.

Belong. Connect. Grow. with KBR!

Around here, we define the future.

We are a company of innovators, thinkers, creators, explorers, volunteers, and dreamers. But we all share one goal: to improve the world responsibly and safely.

Position Summary- Hybrid

THIS POSITION IS CONTINGENT UPON CONTRACT AWARD

We are seeking a GNC Engineer to support the design, development, testing, and real-time operation of advanced aerospace systems. This role bridges engineering development and flight/operational execution, requiring strong technical depth, sound judgment under pressure, and the ability to translate complex system behavior into actionable decisions.

The ideal candidate brings experience across flight dynamics, control systems, software interaction, and operational environments.

This is a remote position with limited, business-need driven travel to onsite locations.

Key Responsibilities

• GNC System Development & Integration
• Support design, analysis, and verification of guidance, navigation, and control algorithms and architecture
• Review and guide flight software design to improve system performance, robustness, and operability
• Evaluate system behavior across full mission phases (e.g., ascent, on-orbit, entry, proximity operations)
• Operational Readiness & Real-Time Support
• Develop and execute operational concepts for GNC systems in mission or test environments
• Monitor vehicle performance and make time-critical recommendations during dynamic operations
• Support anomaly resolution, fault response strategies, and contingency planning
• Requirements, Tools & Procedures
• Define system and console requirements for monitoring and commanding GNC subsystems
• Develop operator displays, telemetry utilization strategies, and command interfaces
• Maintain flight rules, procedures, and operational documentation
• Testing & Validation
• Support system-level testing (integrated labs, simulations, hardware-in-the-loop environments)
• Participate in verification of telemetry, command pathways, and system responses
• Contribute to development and validation of contingency commanding capabilities

Required Qualifications

• TS/SCI Clearance
• Bachelor’s degree in aerospace engineering, Mechanical Engineering, or related field (advanced degree preferred) and 10+ years of experience
• Strong foundation in:
• Orbital mechanics / astrodynamics
• Control systems and state estimation
• Guidance algorithms and vehicle dynamics
• Experience working with:
• Flight software or embedded systems
• Real-time or near-real-time operational environments
• Telemetry analysis and command/response systems
• Demonstrated ability to:
• Operate effectively under pressure and make timely, sound decisions
• Communicate complex technical issues clearly and concisely
• Work across multidisciplinary teams
• Must be a U.S Citizen

Preferred Qualifications

• Experience supporting mission operations or system operations in a control center or similar environment
• Background in anomaly resolution, fault detection/isolation/recovery (FDIR), and contingency operations
• Familiarity with simulation environments, integrated test labs, or hardware/software validation
• Experience developing procedures, flight rules, or operator tools
• Prior experience training or certifying personnel in technical or operational roles

What Sets a Strong Candidate Apart

• Demonstrated ownership of end-to-end GNC capabilities (not just analysis, but how the system is used)
• Ability to connect engineering design decisions to real-world operational impacts
• Proven performance in high-stakes, time-critical environments
• Strong judgment, accountability, and credibility with both engineers and operators
• Comfort operating in “gray space” where processes aren’t fully defined

Basic Compensation:

Jobs on this contract range from $133,900 - $200,800.

The offered rate will be based on the position, contract affordability, the selected candidate’s working location, knowledge, skills, abilities, experience, and in consideration of internal parity.

Additional Compensation:

• KBR may offer bonuses, commissions, or other forms of compensation to certain job titles or levels, per internal policy or contractual designation. Additional compensation may be in the form of sign on bonus, relocation benefits, short-term incentives, long-term incentives, or discretionary payments for exceptional performance.

Belong, Connect and Grow at KBRAt 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.