{"id":1263268,"url":"https://alion.io/job/caci-international-full-stack-software-developer","title":"Full Stack Software Developer","company":{"id":58481,"name":"CACI International","domain":"caci.com","url":"https://alion.io/company/caci-international","size_band":"5000+","is_staffing_agency":false,"employer_type":"services","is_intermediary":false,"listed_via":null,"ats_vendor":"Eightfold","truth_index":{"grade":"D","score":44,"open_postings":953,"ghost_share":0.707,"stale_share":0.004,"repost_share":0.866,"time_to_fill_p50_days":48,"computed_at":"2026-09-28T05:45:00Z"}},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Fairfax, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":94400,"max":198200,"currency":"USD","period":"year","gross":null,"usd_annual":198200},"salary_estimate":null,"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Angular","optional":false},{"name":"CI/CD","optional":false},{"name":"Django","optional":false},{"name":"Docker","optional":false},{"name":"Express","optional":false},{"name":"Flask","optional":false},{"name":"Git","optional":false},{"name":"GitHub","optional":false},{"name":"JavaScript","optional":false},{"name":"Kubernetes","optional":false},{"name":"Machine Learning","optional":false},{"name":"MySQL","optional":false},{"name":"Node JS","optional":false},{"name":"PostgreSQL","optional":false},{"name":"Python","optional":false},{"name":"PyTorch","optional":false},{"name":"React.js","optional":false},{"name":"Scikit-learn","optional":false},{"name":"SQL","optional":false},{"name":"TensorFlow","optional":false},{"name":"TypeScript","optional":false},{"name":"Vue.js","optional":false}],"status":"live","first_seen_at":"2026-09-23T00:00:00Z","employer_posted_date":"2026-09-24","last_verified_at":"2026-09-28T21:52:29Z","board_verified":true,"closed_at":null,"days_open":5,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":5},"description":"Job Title: Full Stack Software DeveloperJob Category: EngineeringTime Type: Full timeMinimum Clearance Required to Start: NoneEmployee Type: RegularPercentage of Travel Required: Up to 25%Type of Travel: Continental US* * *The Opportunity:\nCACI 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,\nYou 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.\nResponsibilities:\nDesign and implement complex web applications with advanced knowledge of frontend and backend technologies\nDevelop and maintain custom applications, tools, and sites to support DHS C3 investigative operations\nBuild applications using dark web technologies such as Tor for secure, anonymous communication\nBuild custom solutions that integrate with existing investigative systems and infrastructure\nDevelop RESTful APIs and microservices architecture to enable system integration and data exchange\nWrite clean, maintainable code in Python and JavaScript for investigative software systems Implement responsive user interfaces using modern frameworks (React, Angular, or Vue.js)\nDevelop server-side applications using frameworks such as Express.js, Django, or Flask\nMaintain and deploy code using Docker, version control (Git/GitHub), and CI/CD pipelines\nDesign and optimize database schemas for performance and scalability\nIntegrate applications with existing investigative systems through APIs and system interfaces\nDevelop solutions that operate in anonymized and dark web environments while maintaining operational security\nCollaborate with data scientists, infrastructure engineers, and cybersecurity specialists on cross-functional projects\nParticipate in code reviews, testing, and quality assurance processes\nDocument software architecture, APIs, and technical specifications\nTroubleshoot and resolve software defects and performance issues\nSupport software development lifecycle from requirements gathering through production deployment\nEnsure applications meet federal security standards and compliance requirements\nQualifications:\nRequired:\nBachelor's degree in Computer Science, Software Engineering, or related technical field\n5 or more years of demonstrated full stack development experience with a proven track record of delivering production applications\n2 or more years of experience developing dark web applications using technologies such as Tor for secure, anonymous communication\n4 or more years of experience in frontend frameworks (React, Angular, or Vue.js) with strong JavaScript/TypeScript skills\n4 or more years of experience in backend development experience with Python, Node.js, or Java\nStrong understanding of RESTful API design and microservices architecture\nExperience with relational databases (PostgreSQL, MySQL) and SQL query optimization\nProficiency with version control systems (Git) and collaborative development workflows\nExperience maintaining and deploying applications using Docker and Kubernetes containerization\nStrong understanding of software design patterns, data structures, and algorithms\nKnowledge of web security best practices, secure coding principles, and anonymization technologies\nWilling and able to work onsite in Fairfax, Va\nMust 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 convictions\n1 year check for illegal drug use\n1 year check for misconduct such as theft or fraud\n\nDesired:\nMaster's degree in Computer Science or related technical field\nExperience integrating AI/ML models into web applications and building interfaces for AI-powered systems\nKnowledge of machine learning frameworks (TensorFlow, PyTorch, scikit-learn) and AI model deployment\nExcellent problem-solving and debugging skills\nStrong communication skills with ability to collaborate effectively across technical teams\n-What You Can Expect:\nA culture of integrity.\nAt 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.\nAn environment of trust.\nCACI 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.\nA focus on continuous growth.\nTogether, 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.\nPay Range:\nThere 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.\nThe proposed salary range for this position is:\n$94,400 - $198,200CACI 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.","description_format":"text","description_chars":6280,"description_truncated":false,"requirements":{"experience_years_min":5,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":true},"security_clearance":false,"languages":[]},"benefits":["Flexible time off"],"hiring_locations":[{"name":"United States","iso":"US","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Electronic Warfare","Intelligence","IT Consulting & Digital Transformation"],"lifecycle":[{"event":"open","at":"2026-09-25T21:23:14Z"},{"event":"close","at":"2026-09-27T17:22:11Z"},{"event":"reopen","at":"2026-09-27T22:37:42Z"}],"liveness":{"score":70,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.695,"p_room":1,"age_days":5,"expected_fill_days":48,"reasons":["conf:7","stale_co","urgency","velocity","win:early","comp:brand"],"computed_at":"2026-09-28T05:45:00Z"},"pay":{"stated_usd_annual":198200,"is_top_pay":true},"html_url":"https://alion.io/job/caci-international-full-stack-software-developer","json_url":"https://alion.io/job/caci-international-full-stack-software-developer.json","meta":{"generated_at":"2026-09-28T22:39:51Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","usage":{"tier":"crawler","counted_by":"address","units_charged":1,"used_today":305,"day_limit":5000,"remaining_today":4695,"minute_limit":60,"resets_at":"2026-09-29T00:00:00Z"}}}