Senior Principal Software Architect Security Clearance

Position: Senior Principal Software Architect with Security Clearance
Job Description See what you're missing. Our employees work on the world's most advanced software and electronics - from developing world-class autonomous mission management capabilities to advanced data analytics to support the warfighters and the intelligence community. Spanning air, land, sea, and space, we are developing the technology of tomorrow, delivered today. Drawing strength from our differences, we're innovating for the future.

And you can, too. Our flexible work environment provides you a chance to change the world without giving up your personal life. We put our customers first
-exemplified by our mission: "We Protect Those Who Protect Us®." Sound like a team you want to be a part of? Come build your career with BAE Systems. Our engineers are the lifeblood of our company and we're more than 5,000 strong. With our robust offering of educational and career development opportunities, your chances to grow are limitless. The Digital Architecture Team (DAT) is building the foundational software infrastructure that modernizes how BAE Systems create and delivers its products.

Our suite underpins the entire product development lifecycle, from ideation through sustainment. We are seeking a Senior Principal Software Architect to own the design, delivery, and sustainment of business-critical software solutions. In this role you will be a partner with engineering, operations, quality, finance, and IT/security to surface opportunities and implement high impact solutions. The ideal candidate has extensive experience architecting modern, Agile driven software and applying model-based systems engineering (MBSE) at scale, and can lead multiple concurrent projects using these methodologies.

Responsibilities
* Own the end-to-end product development lifecycle for the business-critical software suite, from concept and design through release and sustainment.
* Provide the highest level of technical accountability, ensuring architectural integrity, performance, and security for every solution delivered.
* Define and champion a Dev Sec Ops  framework that delivers secure, repeatable, enterprise-grade releases of the software suite.
* Lead the adoption and tailoring of Model-Based Systems Engineering (MBSE) to improve requirements traceability and impact analysis.
* Anchor Agile practices to the software lifecycle, guaranteeing that sprint/cadence planning aligns with architectural roadmaps and product structure.
* Manage expectations and execution across multiple concurrent software projects using Agile and MBSE, delivering on-time and on-budget.
* Establish and enforce standards for secure coding, automated unit/integration testing, continuous testing, and code-review processes.
* Create observability baselines - logging, metrics, tracing, and alerting - to guarantee production-grade reliability and rapid incident resolution.
* Partner with development, operations, security, finance, quality, and product teams to translate business goals into technical solutions.
* Facilitate cross-disciplinary workshops that surface improvement opportunities and drive consensus on architecture decisions.
* Design and oversee deployment strategies (containerization, cloud/on-prem hybrid, blue-green or canary releases) that ensure reliability, maintainability, and operational efficiency.
* Lead sustainment and lifecycle management, guaranteeing that systems remain secure, scalable, and cost-effective throughout their operational life.
* Mentor and coach engineering teams, guiding architectural decisions, fostering technical excellence, and building a culture of continuous learning.
* Drive continuous improvement initiatives that enhance effectiveness, raise product quality, and reduce cost and schedule variance across the organization. Required Education, Experience, & Skills
* 8 + years of professional software-engineering experience, including at least 2 years in a senior architect or technical-lead role.
* Strong proficiency in one or more modern languages (Python, JavaScript/Type Script, Go, C#, Java) and the ability to produce production-grade code.
* Extensive experience designing, building, and operating modern, software architectures-including micro-service-style systems, container-based deployments, and orchestration platforms that run on hybrid (cloud + on-prem) environments.
* Proven track record establishing Dev Sec Ops  pipelines and data-governance frameworks that enable trusted, repeatable, enterprise-scale releases.
* Demonstrated ability to lead cross-disciplinary, multi-project initiatives (engineering, ops, quality, finance, security) using Agile and Model-Based Systems Engineering (MBSE) to manage ambiguity and deliver on schedule.
* Proven experience with Git-based CI/CD platforms (Git Lab, Git Hub Enterprise, Azure Dev Ops, etc.) and automated security testing pipelines.
* Strong proficiency in modern programming languages (e.g., Python, JavaScript/Type Script, C#) and the ability to rapidly prototype and…