Principal Software Engineer

$150k - $190k

Full-time

KBR

Title:
Principal Software Engineer
Belong. Connect. Grow. with KBR!
KBR is seeking an experienced Principal Software Engineer to support the MSEIT contract at Space Systems Command (SSC). This role combines hands-on software development, technical leadership, and architecture support across multiple mission-focused software teams supporting U.S. Space Force capabilities.
Unlike engineers dedicated to a single application or team, this position operates across multiple development efforts, helping solve complex technical challenges, accelerate delivery, improve architectural consistency, and support integration across mission systems.
The successful candidate will be equally comfortable writing production code, reviewing architectural decisions, mentoring development teams, and collaborating with systems engineers, product owners, and mission stakeholders. This role serves as a technical force multiplier across the program and helps ensure consistency in engineering practices, architectural approaches, and software quality.
The program is built around modern software engineering practices, event-driven architectures, cloud-native technologies, DevSecOps, and CI/CD-oriented delivery approaches.
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.
Responsibilities:
Full Stack Development: Design, develop, test, and maintain mission-critical software applications across front-end, back-end, and service layers.
Technical Leadership: Provide hands-on technical leadership and engineering guidance across multiple software teams.
Architecture Development: Help define and evolve application, integration, data, and event-driven architectures supporting enterprise mission objectives.
Event-Driven Systems Design: Design and implement scalable event-driven architectures supporting distributed mission systems.
Enterprise Integration: Develop and guide integration patterns supporting interoperability across mission applications and operational environments.
Front-End Development: Develop modern user interfaces using Angular and related technologies.
Back-End Development: Design and implement scalable services, APIs, and distributed application components.
Cross-Team Problem Solving: Assist teams in resolving complex software, performance, scalability, integration, and architectural challenges.
DevSecOps Collaboration: Partner with platform engineering and DevSecOps teams to improve software delivery pipelines, automation, observability, and deployment practices.
Engineering Excellence: Promote best practices in software design, code quality, testing, maintainability, resiliency, and security.
Technical Mentorship: Mentor engineers through design reviews, architecture discussions, code reviews, and collaborative development.
Mission Collaboration: Work closely with systems engineers, product owners, users, and operational stakeholders to translate mission needs into technical solutions.
Work Environment:
Location: El Segundo, CA (Work-from-home flexibility with on-site support as required)
Travel Requirements: Minimal
Working Hours: Standard
Required:
Ability to obtain and maintain a DoD Secret clearance
Bachelor's degree in computer science, software engineering, computer engineering, or related technical field
10+ years of professional software development experience
Extensive experience designing and developing distributed software systems
Strong full stack development experience across modern web and enterprise application architectures
Expert-level experience with Angular or similar modern front-end frameworks
Strong experience designing and implementing scalable backend services and APIs
Extensive experience with Kafka and event-driven architecture patterns
Strong understanding of asynchronous messaging, event streaming, and distributed systems design
Experience designing and implementing enterprise integration patterns
Experience working within Agile software development environments
Strong understanding of DevSecOps practices and CI/CD delivery pipelines
Demonstrated ability to influence technical direction across multiple teams and projects
Strong communication, leadership, and technical mentoring skills
Proficient in Microsoft Office products (Word, Excel, Powerpoint)
Desired:
Active Secret or higher clearance
Master's degree in computer science, software engineering, computer engineering, or related technical field
Experience supporting Space Systems Command (SSC), Space Operations Command (SpOC/CFC), or related DoD programs
Experience supporting SATCOM, mission systems, operational C2 systems, or space-related applications
Experience with microservices architectures and service-oriented design
Experience with Kubernetes-based deployment environments
Experience developing applications within cloud-native environments
Familiarity with API gateways, service meshes, and modern integration frameworks
Experience participating in architecture review boards and technical governance activities
Familiarity with AI-enabled mission systems or data-driven operational platforms
Experience working across independently contracted software development teams
Experience with Kafka Streams, Apache Flink, RabbitMQ, NATS, or similar event-processing technologies
Experience implementing observability platforms using OpenTelemetry, Prometheus, Grafana, ELK, or similar technologies
Experience with software supply-chain security, SBOM generation, and DevSecOps security tooling
Experience working within software factory or platform engineering environments
Experience supporting large-scale modernization or enterprise transformation efforts
Certifications such as INCOSE CSEP/ESEP
Basic Compensation: $150,000 to $190,000 in El Segundo, CA
The offered rate will be based on the selected candidate's knowledge, skills, abilities and/or experience and in consideration of internal parity.
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.
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.

Apply

Vacancy posted 4 days ago

Similar jobs that could be interesting for youBased on the Principal Software Engineer in El Segundo, CA vacancy

Principal Software Engineer, Application Access Governance
$215k - $250k
El Segundo, CAEngineering - Software Engineering /Full-Time /HybridSaviynt's AI-powered identity platform manages and governs human and non... ...true agile principlesWHAT YOU BRING1+ year of experience as a Principal Software Engineer with a SaaS companyExpert-level ability...
Suggested
Full time
Saviynt
El Segundo, CA
7 hours ago
Principal Software Engineer, Continuous Integration (Starship)
$200k - $285k
...SpaceX is actively developing the technologies to make this possible, with the ultimate goal of enabling human life on Mars.PRINCIPAL SOFTWARE ENGINEER, CONTINUOUS INTEGRATION (STARSHIP)As a Principal Software Engineer on the Starship Continuous Integration team, you will...
Suggested
Permanent employment
Temporary work
Weekend work
SpaceX
Hawthorne, CA
4 days ago
Principal RF Software Engineer (Starshield)
$210k - $340k
...SpaceX is actively developing the technologies to make this possible, with the ultimate goal of enabling human life on Mars.PRINCIPAL RF SOFTWARE ENGINEER (STARSHIELD)Starshield leverages SpaceX’s Starlink technology and launch capability to support national security...
Suggested
Permanent employment
Temporary work
Remote work
Weekend work
SpaceX
Hawthorne, CA
2 days ago
Software Engineer/Principal Software Engineer - Java
$91.8k - $137.6k
...funding. Start dates are determined after funding confirmation.Northrop Grumman Aeronautics Systems is looking to add a Software Engineer - Java or Principal Software Engineer - Java to join our team on site in San Diego, CA or El Segundo, CA.The candidate should be a self-...
Suggested
Full time
Remote work
Relocation package
Shift work
Northrop Grumman
El Segundo, CA
7 hours ago
Principal Software Engineer
$114k - $171k
...Principal Or Sr. Principal Software Engineer - Software AssuranceAt Northrop Grumman, our employees have incredible opportunities to work on revolutionary systems that impact people's lives around the world today, and for generations to come. Our pioneering and inventive...
Suggested
Flexible hours
Shift work
Northrop Grumman
El Segundo, CA
7 hours ago
Principal Software Engineer
...A leading SpaceTech organization seeks a Principal Flight Software Engineer to lead the design and development of mission-critical flight software. This role involves architecting delivery of real-time flight software and mentoring engineers in a fast-paced environment...
InnoForge
El Segundo, CA
5 days ago
Senior Principal Software Engineer
$142.2k - $213.4k
...Sr. Principal Software EngineerAt Northrop Grumman, our employees have incredible opportunities to work on revolutionary systems that impact... ...Systems has an opening for a Sr. Principal Software Engineer. This role is located on site in El Segundo, CA or San Diego...
Shift work
Northrop Grumman
El Segundo, CA
1 day ago
Principal Software Engineer
...Senior Principal Software EngineerHave you ever looked up at the stars and wondered who might be looking back? Well, wonder no more. Raytheon... ...real-time data and information. Our dynamic and diverse engineers develop demanding, trusted, superior solutions to make the world...
Beyond SOF
El Segundo, CA
7 hours ago
Principal Software Engineer
$142.2k - $213.4k
...Sr. Principal Software EngineerAt Northrop Grumman, our employees have incredible opportunities to work on revolutionary systems that impact... ...Systems has an opening for a Sr. Principal Software Engineer. This role is located on site in El Segundo, CA or San Diego...
Shift work
Northrop Grumman
El Segundo, CA
7 hours ago
Principal/Sr. Principal Embedded Software Engineer (Active Secret)
$114k - $171k
...Our employees are not only part of history, they're making history.Northrop Grumman’s Space Sector is seeking a Principal/Sr. Principal Flight Software Engineer - Level 3 or 4 (Active Secret) to join our team of highly qualified, diverse professionals within the Western...
Full time
Relocation package
Monday to Thursday
Flexible hours
Shift work
Northrop Grumman
Redondo Beach, CA
4 days ago
Principal Embedded Software Engineer
$200.5k - $314.48k
...practical approach to nuclear development leverages modern software engineering to rapidly deliver safe, factory-built microreactors that use... ...beginning in 2028.About the roleRadiant is seeking a Principal Embedded Software Engineer to set the technical direction for...
Full time
Summer work
Immediate start
Remote work
Flexible hours
Weekend work
Radiant Industries
El Segundo, CA
4 days ago
Principal Software Engineer, Application Access Governance
$215k - $250k
...analysis Design and develop secure, scalable, multi-tenant software solutions that run seamlessly across major cloud platforms... ...WHAT YOU BRING ~1+ year of experience as a Principal Software Engineer with a SaaS company ~ Expert-level ability utilizing technologies...
Saviynt
El Segundo, CA
3 days ago
Principal Software Engineer
$180k - $250k
Principal Flight Software Engineer This range is provided by InnoForge. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more. Base pay range $180,000.00/yr - $250,000.00/yr InnoForge are partnering with a venture-backed...
Permanent employment
Full time
InnoForge
El Segundo, CA
5 days ago
Principal Software Engineer (Platform Team)
$200k - $285k
...SpaceX is actively developing the technologies to make this possible, with the ultimate goal of enabling human life on Mars.PRINCIPAL SOFTWARE ENGINEER (PLATFORM TEAM) The Platform Team builds the foundational tooling and security infrastructure that empowers every team at...
Permanent employment
Temporary work
SpaceX
Hawthorne, CA
3 days ago
Principal Embedded Software Engineer (actuators & Control Systems)
$180k - $260k
...Principal Embedded Software Engineer (Actuators & Control Systems) Department: Software Employment Type: Full Time Location: Redondo Beach Compensation: $180,000 - $260,000 / year Description As a Senior Embedded Software Engineer at Impulse focused...
Permanent employment
Full time
Impulsespace
Redondo Beach, CA
4 days ago
Principal Software Engineer
$184.3k - $247.1k
Job Posting Title:Principal Software EngineerReq ID:10144164Job Description:Disney Entertainment and ESPN Product & TechnologyTechnology is... ...Entertainment and ESPN Product & Technology is a global organization of engineers, product developers, designers, technologists, data...
Full time
Work experience placement
Hulu
Santa Monica, CA
2 days ago
Principal Software Engineer - Ad Experiences
$197.4k - $264.7k
Job Posting Title:Principal Software Engineer - Ad ExperiencesReq ID:10152691Job Description:Technology is at the heart of Disney’s past, present, and future. Disney Entertainment and ESPN Product & Technology is a global organization of engineers, product developers, designers...
Full time
Work at office
Shift work
Hulu
Santa Monica, CA
7 hours ago
Principal Software Engineer
$184.3k - $247.1k
...Principal Software EngineerDisney Entertainment and ESPN Product & Technology is a global organization of engineers, product developers, designers, technologists, data scientists, and more – all working to build and advance the technological backbone for Disney's media...
Work experience placement
Disney
Santa Monica, CA
1 day ago
Principal Software Engineer
$100k - $190k
...Principal Engineer, Manufacturing Systems Who we are Neros is a defense technology company rebuilding America’s drone industrial base. We... ...and enterprise system boundaries Design and build production software for factory execution, including work orders, routing, material...
Work experience placement
Neros
Torrance, CA
5 days ago
Principal Software Engineer
...Principal Software EngineerJoin us at Metadata Engineering, a driving force within the Media Engineering organization, where we fuel the magic of Disney Entertainment and ESPN Technology. Our team is dedicated to crafting, refining, and disseminating content metadata...
Work experience placement
The Walt Disney Studios
Santa Monica, CA
7 hours ago
Principal Software Engineer
$276k - $414k
...Principal Software EngineerSnap Inc is a technology company. We believe the camera presents the greatest opportunity to improve the way... ...addition to Bitmoji, Saturn, and other digital services.Snap Engineering teams build fun and technically sophisticated products that...
Temporary work
Live in
Work at office
Local area
Snap
Santa Monica, CA
7 hours ago
Software Engineer, Telemetry (Starlink)
...Today SpaceX is actively developing the technologies to make this possible, with the ultimate goal of enabling human life on Mars.SOFTWARE ENGINEER, TELEMETRY (STARLINK)At SpaceX we’re leveraging our experience in building rockets and spacecraft to deploy Starlink, the...
Permanent employment
Temporary work
Worldwide
Weekend work
SpaceX
Hawthorne, CA
7 hours ago
Software Development Engineer, CS Tools
$143.7k - $194.4k
Ring is looking for a Software Development Engineer to join AI transformation of the Customer Supporting activities. We're open to hiring this person to sit in our Hawthorne. The ideal candidate will be curious, creative, goal-oriented, and excited to support other internal...
Internship
Local area
Flexible hours
Amazon
Hawthorne, CA
3 days ago
Senior Software Engineer, Applications
$158k - $219.45k
...data centers, remote sites, and military bases. Radiant’s unique, practical approach to nuclear development leverages modern software engineering to rapidly deliver safe, factory-built microreactors that use existing, well-qualified materials. Founded in 2020, Radiant...
Full time
Summer work
Immediate start
Remote work
Flexible hours
Weekend work
Radiant Industries
El Segundo, CA
1 day ago
Software Engineer - Level 2 (AHT)
$79.3k - $137.6k
...impossible. Our employees are not only part of history, they're making history.Northrop Grumman's Space Systems Sector is seeking a Software Engineer - Level 2 to join our team. This position can be located in either Redondo Beach, CA, Aurora, CO, or Gilbert, AZ.This position...
Full time
Relocation package
Shift work
Northrop Grumman
Redondo Beach, CA
4 days ago
Software Engineer, Simulations (Application Software)
$125k - $150k
...Today SpaceX is actively developing the technologies to make this possible, with the ultimate goal of enabling human life on Mars.SOFTWARE ENGINEER, SIMULATIONS (APPLICATION SOFTWARE)As a Software Engineer on the Simulations team, you will design, develop, and test our in-...
Permanent employment
Temporary work
Weekend work
SpaceX
Hawthorne, CA
2 days ago
Software Engineer - Level 3/4
$114k - $171k
...impossible. Our employees are not only part of history, they're making history.Northrop Grumman's Space Systems Sector is seeking a Software Engineer - Level 3/4 to join our team. This position can be located in either Redondo Beach, CA or Aurora, CO.*Please be aware that...
Full time
Relocation package
Shift work
Northrop Grumman
Redondo Beach, CA
1 day ago
Software Engineer, CDN (Starlink)
...Today SpaceX is actively developing the technologies to make this possible, with the ultimate goal of enabling human life on Mars.SOFTWARE ENGINEER, CDN (STARLINK)At SpaceX we’re leveraging our experience in building rockets and spacecraft to deploy Starlink, the world’s...
Permanent employment
Temporary work
Internship
Work at office
Worldwide
Monday to Friday
Weekend work
SpaceX
Hawthorne, CA
2 hours ago
Software Development Engineer II, Ring Quick Action Service
$143.7k - $194.4k
...data to innovate and improve the experience for millions of customers around the world. We are looking for an experienced Software Development Engineer to build and scale our QAS systems. Ring is expanding and this role will be key in the development of solutions for...
Internship
Local area
Flexible hours
Amazon
Hawthorne, CA
2 hours ago
Senior Software Engineer
...and make a difference with us.Department Summary: Do you want to develop software systems that contribute to solving our nation’s most critical problems?   Do you want to work alongside engineers and scientists that are experts in their fields? Are you passionate about...
For contractors
Work experience placement
Internship
Local area
Immediate start
Mitre
El Segundo, CA
1 day ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to Principal Software Engineer. Be the first to apply!