Principal Software Engineer

Job Title: Principal Software Engineer

Job Category: Engineering

Time Type: Full time

Minimum Clearance Required to Start: TS/SCI

Employee Type: Regular

Percentage of Travel Required: Up to 10%

Type of Travel: Local

Anticipated Posting End: 6/20/2026

The Opportunity:

This senior role is for a Software Architect/Principal Software Engineer, and requires technical leadership, system design, and implementation oversight of complex government system architectures for national critical systems. You will serve as the key decision-maker in defining the "how" a system will be implemented to meet its software requirements, coordinating efforts between our team and sub-contractors. The responsibility of this dynamic role is expected to evolve over the course of the program and includes fostering customer intimacy to ensure a full understanding of the customer's needs, and then successfully leading the engineering team to realize that critical vision.

We are seeking an accomplished Software Architect/Principal Software Engineer who is deeply customer mission-focused and passionate about providing strategic technical leadership in the software architecture and design of complex government systems, requiring proven experience leading programs involving 30+ developers in a distributed environment. This principal technical authority will be responsible for creating robust system designs derived from comprehensive requirements analysis, developing and evolving system architectures for enterprise-level solutions, establishing and maintaining rigorous interface definition standards and APIs, and leading advanced software design tasks to ensure optimal performance and maintainability. Beyond direct design, the architect is expected to drive technical consensus through trade studies, proactively identify and mitigate technical risks, act as the primary technical interface to leadership, government customers, and sub-contractor CA/CE’s, and actively participate in the mentorship and growth of the distributed engineering team, ultimately joining our team to help shape the development and delivery of custom solutions and providing significant opportunities for personal skill development.

Responsibilities:

• Lead and mentor engineering development teams across the full Software Development Life Cycle (SDLC) to ensure program and technical success
• Drive Continuous Delivery and DevOps Adoption: Lead and mentor engineering teams across the full Software Development Life Cycle (SDLC), emphasizing modern practices like continuous integration, continuous delivery (CI/CD), infrastructure as code, and automated testing to ensure rapid and reliable program and technical success
• Define Cloud-Native/Distributed System Architecture: Apply deep technical expertise to define technical objectives, establish resilient system architecture patterns (e.g., microservices, event-driven), analyze complex engineering challenges, and drive effective, scalable solutions for distributed systems
• Govern Engineering Quality and Resilience: Evaluate the quality, efficacy, and observability of engineering deliverables, including software design, development practices, automated deployment pipelines, and operational monitoring. Ensure adherence to high standards for performance, scalability, and system resilience
• Proactive Operational Risk Communication: Proactively communicate engineering status, architectural risks (including technical debt), and operational issues related to system performance, availability, latency, and security (DevSecOps) to program leadership and the customer in real-time
• Facilitate Architectural Alignment with Customers: Conduct technical exchange meetings (TEMs) with government customers and external stakeholders to present architectural roadmaps, secure design approvals, and ensure continuous technical alignment with evolving mission needs
• Champion Innovation and Technology Strategy: Continuously evaluate, prototype, and recommend emerging technologies (e.g., AI/ML integration, new programming languages, cloud services) to enhance the performance, security, and future capabilities of mission-critical software systems

Qualifications:

Required:

• Bachelor’s degree in computer science or a related technical field
• 10+ years of professional software development experience
• Active TS/SCI Security clearance with ability to obtain a poly
• Demonstrated experience as a Chief Architect, Associate Chief Architect, or equivalent technical leadership role, guiding teams through the full software development lifecycle and successfully deploying capabilities into classified government operational environments
• Strong cross-functional communication skills and proven ability to collaborate effectively within small, fast-paced teams, managing multiple tasks to meet program milestones and deadlines
• Proven track record of leading Agile software engineering initiatives across all phases, including design, development, configuration, integration, testing, and delivery to end-users
• Experience in large-scale system design and deployments on cloud platforms (e.g., AWS, Azure), with a deep understanding of architectural principles for scalability
• Familiarity with leveraging cloud services for Kubernetes deployments and management, virtual machine management, object storage, and serverless functions
• Ability to translate in-depth system engineering analysis into actionable software development concepts and implementations
• Experience in code review processes, ensuring technical soundness, adherence to coding standards, and adequate testing (including unit and integration tests)
• Demonstrated experience working on projects with geographically distributed teams
• Excellent interpersonal skills and experience engaging effectively with virtual teams

Desired:

• Strong business acumen with a proven ability to align technical solutions with business objectives
• Experience developing software on cloud platforms such as AWS or Azure, with a solid understanding of cloud-native architectures and design principles
• Familiarity with cloud services for container orchestration (e.g., Kubernetes), virtual machine management, object storage, and serverless computing
• Hands-on experience in software application deployment, virtualization technologies, and containerization (e.g., Docker)
• Experience in one or more of the following areas:
  • Satellite communication planning for individual satellites and constellations
  • SIGINT (Signals Intelligence) and GEOINT (Geospatial Intelligence) mission planning operations
  • Satellite command and control (C2) systems
  • Satellite tasking for GEOINT and SIGINT collection
  • Advanced mission planning for satellite operations, including payload operation

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What You Can Expect:

 A culture of integrity.

At CACI, we place character and innovation at the center of everything we do. As a valued team member, you’ll be part of a high-performing group dedicated to our customer’s missions and driven by a higher purpose – to ensure the safety of our nation.

An environment of trust.

CACI values the unique contributions that every employee brings to our company and our customers - every day. You’ll have the autonomy to take the time you need through a unique flexible time off benefit and have access to robust learning resources to make your ambitions a reality.

A focus on continuous growth.

Together, we will advance our nation's most critical missions, build on our lengthy track record of business success, and find opportunities to break new ground — in your career and in our legacy.

Pay Range:

There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications. Our employees value the flexibility at CACI that allows them to balance quality work and their personal lives. We offer competitive compensation, benefits and learning and development opportunities. Our broad and competitive mix of benefits options is designed to support and protect employees and their families. At CACI, you will receive comprehensive benefits such as; healthcare, wellness, financial, retirement, family support, continuing education, and time off benefits.

Since this position can be worked in more than one location, the range shown is the national average for the position.

The proposed salary range for this position is:

$114,600-$252,100

CACI is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, age, national origin, disability, status as a protected veteran, or any other protected characteristic.