Principal Software Engineer

About Trinzic

Trinzic is the future independent company created through the planned spin-off of KBR's Mission Technology Solutions business, expected in January 2027. The organization will launch as a global company with more than 18,000 employees supporting customers around the world.

Trinzic will work with customers in challenging environments, delivering solutions and advancing high-priority national security and space missions. 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.

Job Summary

KBR is seeking an experienced Principal Software Engineer to support the MSEIT contract at Space Systems Command (SSC). The role blends hands-on software development, technical leadership, and architecture support across multiple mission-focused software teams.

Instead of focusing on a single application or team, this position operates across multiple development efforts. The goal is to address complex technical issues, speed up delivery, improve architectural consistency, and support integration across mission systems.

The successful candidate will write production code, review architectural decisions, mentor development teams, and collaborate with systems engineers, product owners, and mission stakeholders. This role acts as a technical force multiplier to help maintain consistency in engineering practices, architectural approaches, and software quality.

The program emphasizes modern software engineering practices, event-driven architectures, cloud-native technologies, DevSecOps, and CI/CD-oriented delivery approaches.

Key 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 aligned to enterprise mission objectives.
• Event-Driven Systems Design: Design and implement scalable event-driven architectures for distributed mission systems.
• Enterprise Integration: Develop and guide integration patterns that enable interoperability across mission applications and operational environments.
• Front-End Development: Build 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: Support resolution of complex software, performance, scalability, integration, and architectural challenges.
• DevSecOps Collaboration: Partner with platform engineering and DevSecOps teams to improve 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.

Required Experience

• Ability to obtain and maintain a DoD Secret clearance
• Bachelor's degree in computer science, software engineering, computer engineering, or a 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)

Preferred Experience

• Active Secret or higher clearance
• Master's degree in computer science, software engineering, computer engineering, or a 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

Work Environment

• Location: El Segundo, CA (work-from-home flexibility with on-site support as required)
• Travel Requirements: Minimal
• Working Hours: Standard, 40 hours per week (full-time)

Compensation

For California only, the salary range for this position is approximately $150,000 to $190,000. The offered rate will be based on the selected candidate’s knowledge, skills, abilities and/or experience and in consideration of internal parity.

Other 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 include sign-on bonus, relocation benefits, short term incentives, long term incentives, or discretionary payments for exceptional performance.