{"schemaVersion":"jobsearcher.job.v1","id":"c36f1273894fab5976141ab4","url":"https://jobsearcher.com/jobs/c36f1273894fab5976141ab4","canonicalUrl":"https://jobsearcher.com/jobs/c36f1273894fab5976141ab4","title":"Sr. Full Stack UI/UX Software Engineer","description":"CSSI is seeking a highly skilled Senior Full UI/UX Stack Software Engineer to support the design, development, modernization, integration, and maintenance of mission-critical applications supporting transportation and operational safety programs. The successful candidate will leverage modern web technologies, cloud-native architectures, and software engineering best practices to develop scalable solutions that enhance operational performance and decision-making. The role requires strong experience across front-end development, cloud platforms, application integration, and Agile software development.\n\nMinimum Qualifications:\n\nBachelor's degree in Computer Science, Software Engineering, Information Systems, or a related technical discipline.\nMinimum of 8 years of professional software development experience.\nMinimum of 5 years of experience developing modern web applications.\nExperience working throughout the Software Development Lifecycle (SDLC).\nExperience supporting production systems and enterprise applications.\nExperience working in Agile/Scrum development environments.\n U.S. Citizen or Green Card Permanent Resident (minimum 3+ years of U.S. residency) and Public Trust approval\n\nRequired Technical Skills:\n\nFront End Development\n\nExperience developing web applications using React, Angular, JavaScript/TypeScript, HTML5, FIGMA and CSS3.\nExperience building responsive user interfaces and reusable components.\nExperience integrating visualization and reporting tools into web applications.\n\nCloud and DevOps\n\nExperience designing and deploying applications within AWS environments.\nExperience with AWS Lambda, CloudFormation, DynamoDB, S3, CI/CD pipelines, and GitHub Actions.\nExperience automating software deployments and system operations.\n\nSoftware Engineering\n\nObject-oriented design and development.\nData structures and design patterns.\nUnit testing and Test-Driven Development (TDD).\nCode reviews and Continuous Integration/Continuous Delivery (CI/CD).\nApplication performance optimization and troubleshooting.\n\nPreferred Qualifications:\n\nAWS Developer Associate certification.\nAWS Solutions Architect certification.\nAWS DevOps certification.\nExperience with enterprise modernization initiatives.\nExperience supporting transportation, aviation, federal government, or safety-related systems.\nExperience with Tableau integration and data visualization platforms.\n\nKey Responsibilities:\n\nDesign, develop, test, and deploy full-stack software solutions supporting mission and operational objectives.\nDevelop and maintain cloud-native applications utilizing AWS services.\nBuild and enhance APIs, and web-based user interfaces.\nCollaborate with program managers, engineers, analysts, and stakeholders to translate business requirements into technical solutions.\nSupport application modernization and cloud migration initiatives.\nImplement software engineering best practices, including code reviews, automated testing, and CI/CD pipelines.\nTroubleshoot production issues and provide technical support for deployed systems.\nParticipate in Agile ceremonies, sprint planning, and development reviews.\nDevelop technical documentation, architectural diagrams, and implementation plans.\n\nDesired Competencies:\n\nStrong analytical and problem-solving skills.\nAbility to communicate technical concepts to both technical and non-technical audiences.\nAbility to work independently and within multidisciplinary teams.\nStrong customer engagement and collaboration skills.\nCommitment to quality, continuous improvement, and innovation.\n\nAbout CSSI:\n\nCSSI, LLC., has 30 years of experience working in complex, dynamic, safety critical systems supporting both government and commercial clients to address their toughest challenges, with efficient and low-risk solutions. Our collaborative work has improved the safety of transportation related human and systems infrastructure, increased the efficiency of the National Airspace System (NAS), and facilitated the modernization of both NAS and DoD systems and capabilities. Founded in 1990 and headquartered in Washington, D.C., CSSI employs nearly 200 employees throughout the country, helping customers across the United States and globally understand and implement the solutions to their biggest obstacles. For more information on CSSI, please visit www.cssiinc.com (http://www.cssiinc.com/).\n\nEqual Opportunity Employer/Protected Veterans/Individuals with Disabilities\nThis employer is required to notify all applicants of their rights pursuant to federal employment laws. For further information, please review the Know Your Rights (https://www.eeoc.gov/poster) notice from the Department of Labor.","company":"Cssi","rawCompany":"cssi","city":"Washington","state":"DC","isRemote":false,"isActive":false,"createdAt":"2026-08-19T12:53:04.298Z","occupations":[{"code":"15-1252.00","title":"Software Developers","slug":"software-developers"},{"code":"15-1299.08","title":"Computer Systems Engineers/Architects","slug":"computer-systems-engineers-architects"},{"code":"15-1211.00","title":"Computer Systems Analysts","slug":"computer-systems-analysts"}],"industries":[{"code":"541512","title":"Computer Systems Design Services","slug":"computer-systems-design-services"},{"code":"541511","title":"Custom Computer Programming Services","slug":"custom-computer-programming-services"},{"code":"513210","title":"Software Publishers","slug":"software-publishers"}],"jobPosting":{"@context":"https://schema.org","@type":"JobPosting","title":"Sr. Full Stack UI/UX Software Engineer","description":"CSSI is seeking a highly skilled Senior Full UI/UX Stack Software Engineer to support the design, development, modernization, integration, and maintenance of mission-critical applications supporting transportation and operational safety programs. The successful candidate will leverage modern web technologies, cloud-native architectures, and software engineering best practices to develop scalable solutions that enhance operational performance and decision-making. The role requires strong experience across front-end development, cloud platforms, application integration, and Agile software development.\n\nMinimum Qualifications:\n\nBachelor's degree in Computer Science, Software Engineering, Information Systems, or a related technical discipline.\nMinimum of 8 years of professional software development experience.\nMinimum of 5 years of experience developing modern web applications.\nExperience working throughout the Software Development Lifecycle (SDLC).\nExperience supporting production systems and enterprise applications.\nExperience working in Agile/Scrum development environments.\n U.S. Citizen or Green Card Permanent Resident (minimum 3+ years of U.S. residency) and Public Trust approval\n\nRequired Technical Skills:\n\nFront End Development\n\nExperience developing web applications using React, Angular, JavaScript/TypeScript, HTML5, FIGMA and CSS3.\nExperience building responsive user interfaces and reusable components.\nExperience integrating visualization and reporting tools into web applications.\n\nCloud and DevOps\n\nExperience designing and deploying applications within AWS environments.\nExperience with AWS Lambda, CloudFormation, DynamoDB, S3, CI/CD pipelines, and GitHub Actions.\nExperience automating software deployments and system operations.\n\nSoftware Engineering\n\nObject-oriented design and development.\nData structures and design patterns.\nUnit testing and Test-Driven Development (TDD).\nCode reviews and Continuous Integration/Continuous Delivery (CI/CD).\nApplication performance optimization and troubleshooting.\n\nPreferred Qualifications:\n\nAWS Developer Associate certification.\nAWS Solutions Architect certification.\nAWS DevOps certification.\nExperience with enterprise modernization initiatives.\nExperience supporting transportation, aviation, federal government, or safety-related systems.\nExperience with Tableau integration and data visualization platforms.\n\nKey Responsibilities:\n\nDesign, develop, test, and deploy full-stack software solutions supporting mission and operational objectives.\nDevelop and maintain cloud-native applications utilizing AWS services.\nBuild and enhance APIs, and web-based user interfaces.\nCollaborate with program managers, engineers, analysts, and stakeholders to translate business requirements into technical solutions.\nSupport application modernization and cloud migration initiatives.\nImplement software engineering best practices, including code reviews, automated testing, and CI/CD pipelines.\nTroubleshoot production issues and provide technical support for deployed systems.\nParticipate in Agile ceremonies, sprint planning, and development reviews.\nDevelop technical documentation, architectural diagrams, and implementation plans.\n\nDesired Competencies:\n\nStrong analytical and problem-solving skills.\nAbility to communicate technical concepts to both technical and non-technical audiences.\nAbility to work independently and within multidisciplinary teams.\nStrong customer engagement and collaboration skills.\nCommitment to quality, continuous improvement, and innovation.\n\nAbout CSSI:\n\nCSSI, LLC., has 30 years of experience working in complex, dynamic, safety critical systems supporting both government and commercial clients to address their toughest challenges, with efficient and low-risk solutions. Our collaborative work has improved the safety of transportation related human and systems infrastructure, increased the efficiency of the National Airspace System (NAS), and facilitated the modernization of both NAS and DoD systems and capabilities. Founded in 1990 and headquartered in Washington, D.C., CSSI employs nearly 200 employees throughout the country, helping customers across the United States and globally understand and implement the solutions to their biggest obstacles. For more information on CSSI, please visit www.cssiinc.com (http://www.cssiinc.com/).\n\nEqual Opportunity Employer/Protected Veterans/Individuals with Disabilities\nThis employer is required to notify all applicants of their rights pursuant to federal employment laws. For further information, please review the Know Your Rights (https://www.eeoc.gov/poster) notice from the Department of Labor.","datePosted":"2026-08-19T12:53:04.298Z","dateModified":"2026-08-19T12:53:04.298Z","hiringOrganization":{"@type":"Organization","name":"Cssi","sameAs":"https://jobsearcher.com"},"jobLocation":{"@type":"Place","address":{"@type":"PostalAddress","addressLocality":"Washington","addressRegion":"DC","addressCountry":"US"}},"identifier":{"@type":"PropertyValue","name":"JobSearcher","value":"c36f1273894fab5976141ab4"},"url":"https://jobsearcher.com/jobs/c36f1273894fab5976141ab4"}}