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Sr. Software Engineer
Category: Software Development/ Engineering
Main location: United States, Virginia, Fairfax
Alternate Location(s): United States, Louisiana, Lafayette
Position ID:J0926-0196
Employment Type: Full Time
Position Description:
CGI is seeking a Senior Software Engineer/Developer to design, build, and maintain high-performance applications supporting Congress.gov's legislative information mission. The Engineer will develop secure, cloud-ready components integrated within LOC's enterprise development environment, delivering reliable, accessible, and scalable solutions for congressional data and public transparency.
Your future duties and responsibilities:
• Develop microservices, APIs, and modular application components.
• Write secure, efficient, maintainable code for large-scale data and public-facing systems.
• Build automated tests and ensure enterprise software quality standards.
• Integrate applications with CI/CD pipelines and DevSecOps tooling.
• Support modernization efforts, refactoring legacy functionality into cloud-ready designs.
• Participate in Agile ceremonies and collaborate with cross-functional LOC and CGI teams.
Required qualifications to be successful in this role:
• U.S. Citizenship
• Bachelor's degree in Computer Science or related field
• 7+ years of professional software development experience
• Proficiency in languages such as Java and Python
• Proficiency in MySQL, Mongo DB, Solr, and OracleExperience with secure coding practices and federal software development environments
• Experience with PHP (/Symfony), Angular, and Node
• Experience contributing within Agile/Scrum teams
Desired Qualifications
• Experience developing on AWS or other cloud platforms
• Experience modernizing legacy components to cloud-native architectures
• Familiarity with modern JavaScript frameworks, containerization, and API-first design
