{"id":1607143,"url":"https://alion.io/job/caci-international-cybersecurity-engineer-network-security-tools","title":"Cybersecurity Engineer - Network Security Tools","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":"Workday","truth_index":{"grade":"D","score":44,"open_postings":830,"ghost_share":0.718,"stale_share":0.007,"repost_share":0.876,"time_to_fill_p50_days":47,"computed_at":"2026-10-10T05:45:15Z"}},"role":"Security","role_family":"Security","seniority":"senior","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Saint Louis, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":75200,"max":158100,"currency":"USD","period":"year","gross":null,"usd_annual":158100},"salary_estimate":null,"experience_years_min":7,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Active Directory","optional":false},{"name":"Corelight","optional":false},{"name":"Darktrace","optional":false},{"name":"LDAP","optional":false},{"name":"Linux","optional":false},{"name":"PKI","optional":false},{"name":"Tcpdump","optional":false},{"name":"Vectra AI","optional":false}],"status":"live","first_seen_at":"2026-10-01T19:53:39Z","employer_posted_date":"2026-10-01","last_verified_at":"2026-10-11T19:34:33Z","board_verified":true,"closed_at":null,"days_open":10,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":10},"description":"Job Title: Cybersecurity Engineer - Network Security ToolsJob Category: Information TechnologyTime Type: Full timeMinimum Clearance Required to Start: TS/SCIEmployee Type: RegularPercentage of Travel Required: Up to 10%Type of Travel: Local* * *The Opportunity\nTCS is looking for a Cybersecurity Engineer for the Network Security Services - Network Defense team. This position is responsible for developing, deploying, and maintaining cybersecurity tools to defend the National Geospatial-Intelligence Agency (NGA) networks. Duties include designing, procuring, implementing, operating, sustaining, and disposing of IT security solutions on multiple networks, at multiple locations worldwide, in support of the NGA GEOINT mission.\nResponsibilities\nDesign, implement, and deliver task or project-based defensive cybersecurity solutions for on-premise and cloud environments. \nDeploy, configure, and maintain network security tools, ensuring software installations, updates, core services, and applied configurations are functioning within design specifications. \nDevelop and maintain network architecture diagrams, inventories, and licensing status for the various capabilities within the scope of the team. \nProvide written reports and oral briefings to contract and government leadership. \nCoordinate issues with the appropriate stakeholders to ensure task completeness and overall customer satisfaction. \nEvaluate and report on new/emerging network security technologies to enhance capacity, performance and reliability of the networks. \nEvaluate and recommend configuration changes and technology upgrades to address performance, standardization, and align industry best practices. \nApply a solid understanding of networking protocols and utilize network troubleshooting tools (tcpdump, traceroute, netstat, nslookup, etc.) to diagnose and resolve issues. \nQualifications\nRequi red:\nSecurity Clearance: Active TS/SCI. \nAbility to obtain and maintain a CI polygraph. \nDOD 8570 IAT II certification (Security+, CySA+, etc.) \nAbility to obtain and maintain DOD 8570 CSSP Infrastructure Support certification (CEH, CySA+, etc.) \nAbility to work weekends and evening hours as needed. \nAbility to work independently with little direction or guidance.\nDesired:\nDemonstrated knowledge of implementation and management of NDR and IDS/IPS platforms (VectraAI, Extrahop, Darktrace, Corelight, Cisco Firepower, Trellix NX, etc.) \nDemonstrated knowledge of implementation and management of packet broker/network visibility platforms (Gigamon, Ixia, Garland, etc.) \nDemonstrated knowledge of implementation and management of packet capture platforms (NetWitness, Axellio, Endace, etc.) \nDemonstrated knowledge of implementation and management of email security platforms (Trellix EX, Cisco Secure Email Gateway, Ironport, Proofpoint, Abnormal, etc.) \nExpertise in Linux system administration, including scripting and system automation. \nExpertise in configuring system logging, analyzing logs for troubleshooting, and implementing secure networking services. \nFamiliarity with DoW PKI, Kerberos, LDAP, Active Directory, and Authentication (SAML, OAuth). \nBachelor’s degree in Computer Science, Information Technology, Computer Engineering, Electrical Engineering, or related field. \n7+ years related technical experience to network security technologies, tools, and techniques. \n5+ years experience with large-scale enterprise/global networks. \nUnderstanding of DoW, DISA, and IC standards and processes. \nUnderstanding of DoW network architecture. \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$75,200-$158,100CACI 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":5488,"description_truncated":false,"requirements":{"experience_years_min":7,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":true,"languages":[]},"benefits":["Flexible time off"],"hiring_locations":[{"name":"United States","iso":"US","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Cybersecurity","Network Security","Information Security","IT Consulting & Digital Transformation"],"lifecycle":[{"event":"open","at":"2026-10-01T19:53:39Z"}],"visa":[],"liveness":{"score":68,"band":"ok","label":"Likely open","p_open":1,"p_active":0.678,"p_room":1,"age_days":8,"expected_fill_days":47,"reasons":["conf:4","stale_co","urgency","velocity","win:early","comp:brand"],"computed_at":"2026-10-10T05:45:15Z"},"pay":{"stated_usd_annual":158100,"is_top_pay":false},"html_url":"https://alion.io/job/caci-international-cybersecurity-engineer-network-security-tools","json_url":"https://alion.io/job/caci-international-cybersecurity-engineer-network-security-tools.json","meta":{"generated_at":"2026-10-11T22:28:09Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler_verified","counted_by":"address","units_charged":1,"used_today":12355,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-12T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.02,"usd":0.002,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":58481},"rest":"https://alion.io/mcp/rest/get_company?id=58481"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fcaci-international-cybersecurity-engineer-network-security-tools"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":1,"usd":0.1},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Fcaci-international-cybersecurity-engineer-network-security-tools"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.02,"usd":0.002},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Fcaci-international-cybersecurity-engineer-network-security-tools"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/caci-international-cybersecurity-engineer-network-security-tools\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fcaci-international-cybersecurity-engineer-network-security-tools"}]}