Sr. Full Stack Engineer

CGI • Huntsville, AL

5d • Onsite

About The Position

CGI Federal is seeking a Full Stack Engineer – Senior to support application design, development, integration, and modernization for a major federal transformation program. This senior role develops secure, scalable, cloud-ready solutions and works across the entire stack—front-end, back-end, APIs, databases, and cloud environments. The Full Stack Engineer collaborates with Product, DevSecOps, Cloud, Data, QA, and Migration teams to deliver mission-critical capabilities that meet federal performance, security, and compliance standards.

Requirements

• Must have an Active Top Secret Security Clearance
• U.S. Citizenship
• Bachelor’s degree and 8+ years of experience in software engineering or full-stack development
• Experience developing both front-end and back-end solutions using modern frameworks
• Hands-on experience with APIs, microservices, relational and NoSQL databases
• Experience with CI/CD pipelines, Git, DevSecOps environments, and automated testing
• Strong ability to troubleshoot issues across the entire stack
• Excellent communication and documentation skills

Nice To Haves

• Experience supporting DOJ, FBI, Intelligence Community, or other national-security programs
• Experience with cloud-native architectures (AWS strongly preferred)
• Familiarity with containerization (Docker), orchestration (Kubernetes), or serverless frameworks
• Experience with performance engineering, load testing, or automated quality pipelines
• Knowledge of Python, Java, JavaScript/TypeScript, or similar languages used across full-stack systems

Responsibilities

• Design, develop, and maintain front-end and back-end components for enterprise applications
• Build and optimize REST APIs, microservices, and system-to-system integrations
• Ensure code quality, performance, and maintainability across the full stack
• Develop cloud-compatible services and applications (AWS preferred)
• Support deployment of pipelines, infrastructure integration, and CI/CD workflows
• Align application architecture with modernization and cloud migration requirements
• Collaborate with Scrum Masters, Product Leads, QA Automation Engineers, Cloud Engineers, and Data Engineers
• Participate in sprint planning, backlog refinement, technical design reviews, and demos
• Mentor mid-level engineers and support knowledge-sharing across teams
• Implement secure coding practices, logging, auditing, and data-handling requirements
• Conduct performance tuning, optimization, and reliability improvements
• Ensure delivery aligns with federal security standards and program governance
• Support automated testing and validation of application functionality and integrations
• Troubleshoot defects across the stack and coordinate with QA to resolve issues
• Validate readiness for release and major deployment events
• Develop technical design documents, API specifications, data flow diagrams, and code documentation
• Maintain full-stack engineering artifacts required for release, sustainment, and audits
• Provide status updates and technical insights to leadership and cross-functional teams

Benefits

• Life at CGI is rooted in ownership, teamwork, respect and belonging.
• You are invited to be an owner from day 1 as we work together to bring our Dream to life.
• We benefit from our collective success and actively shape our company’s strategy and direction.
• Your work creates value.
• You’ll develop innovative solutions and build relationships with teammates and clients while accessing global capabilities to scale your ideas, embrace new opportunities, and benefit from expansive industry and technology expertise.
• You’ll shape your career by joining a company built to grow and last.
• You’ll be supported by leaders who care about your health and well-being and provide you with opportunities to deepen your skills and broaden your horizons.
• Come join our team—one of the largest IT and business consulting services firms in the world.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior