Full Stack Software Developer

Full Stack Software DeveloperCACI is seeking a Full Stack Developer to support the Department of Homeland Security's Cyber Crimes Center (C3) in designing and implementing sophisticated web applications and investigative tools. As the Full Stack Developer, you will design and develop scalable, secure applications that support critical law enforcement investigations targeting criminal networks and dark web operations.You will work within a collaborative technical team delivering mission-critical software for national security operations applying modern full stack development practices to solve complex investigative challenges in anonymized environments.Responsibilities:Design and implement complex web applications with advanced knowledge of frontend and backend technologiesDevelop and maintain custom applications, tools, and sites to support DHS C3 investigative operationsBuild applications using dark web technologies such as Tor for secure, anonymous communicationBuild custom solutions that integrate with existing investigative systems and infrastructureDevelop RESTful APIs and microservices architecture to enable system integration and data exchangeWrite clean, maintainable code in Python and JavaScript for investigative software systems Implement responsive user interfaces using modern frameworks (React, Angular, or Vue.js)Develop server-side applications using frameworks such as Express.js, Django, or FlaskMaintain and deploy code using Docker, version control (Git/GitHub), and CI/CD pipelinesDesign and optimize database schemas for performance and scalabilityIntegrate applications with existing investigative systems through APIs and system interfacesDevelop solutions that operate in anonymized and dark web environments while maintaining operational securityCollaborate with data scientists, infrastructure engineers, and cybersecurity specialists on cross-functional projectsParticipate in code reviews, testing, and quality assurance processesDocument software architecture, APIs, and technical specificationsTroubleshoot and resolve software defects and performance issuesSupport software development lifecycle from requirements gathering through production deploymentEnsure applications meet federal security standards and compliance requirementsQualifications:Required:Bachelor's degree in Computer Science, Software Engineering, or related technical field5 or more years of demonstrated full stack development experience with a proven track record of delivering production applications2 or more years of experience developing dark web applications using technologies such as Tor for secure, anonymous communication4 or more years of experience in frontend frameworks (React, Angular, or Vue.js) with strong JavaScript/TypeScript skills4 or more years of experience in backend development experience with Python, Node.js, or JavaStrong understanding of RESTful API design and microservices architectureExperience with relational databases (PostgreSQL, MySQL) and SQL query optimizationProficiency with version control systems (Git) and collaborative development workflowsExperience maintaining and deploying applications using Docker and Kubernetes containerizationStrong understanding of software design patterns, data structures, and algorithmsKnowledge of web security best practices, secure coding principles, and anonymization technologiesWilling and able to work onsite in Fairfax, VaMust be a U.S. Citizen with the ability to pass DHS background investigation, criteria include but are not limited to:3 year check for felony convictions1 year check for illegal drug use1 year check for misconduct such as theft or fraudDesired:Master's degree in Computer Science or related technical fieldExperience integrating AI/ML models into web applications and building interfaces for AI-powered systemsKnowledge of machine learning frameworks (TensorFlow, PyTorch, scikit-learn) and AI model deploymentExcellent problem-solving and debugging skillsStrong communication skills with ability to collaborate effectively across technical teamsWhat 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.The proposed salary range for this position is:$94,400 - $198,200 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.