{"id":2506496,"url":"https://alion.io/job/sunayu-information-systems-security-engineer-isse-tssci","title":"Information Systems Security Engineer (ISSE) -TS/SCI","company":{"id":4422519,"name":"Sunayu","domain":"sunayu.com","url":"https://alion.io/company/sunayu","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"BambooHR","truth_index":null},"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":["Arlington, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":107000,"max_usd":206000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":1306},"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Linux","optional":false},{"name":"Nessus","optional":false},{"name":"Red Hat","optional":false},{"name":"Windows","optional":false}],"status":"live","first_seen_at":"2026-09-22T00:00:00Z","employer_posted_date":"2026-09-22","last_verified_at":"2026-10-20T10:39:00Z","board_verified":true,"closed_at":null,"days_open":28,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":28},"description":"Category: Senior IT Systems Engineer - TS/SCI\nLocation: Pentagon\nClearance: TS/SCI\nTravel Required: No\nRemote Type: No\nSunayu, LLC is searching for an Information Systems Security Engineer (ISSE) to provide cyber security and security engineering services for the National Military Command Center (NMCC) customer including system security engineering, cybersecurity risk assessments, and security architecture support.\nThe ISSE shall perform, or review, technical security assessments of computing environments to identify points of vulnerability, noncompliance with established cybersecurity standards and regulations and recommended mitigation strategies.\nResponsibilities includes:\nResponsible for building, deploying and Patching HBSS Windows and ACAS RedHat Linux 7.9 and 8 servers.\nResponsible for building, maintaining, and patching all ePO, Security Center, and Nessus servers.\nProvides Security Center accounts for Vulnerability Managers to scan devices within ACAS.\nExperience with ACAS scan results and how to remediate vulnerability findings.Knowledge of the process of obtaining licenses for all HBSS ePO’s and Tenable Security Centers.\nExpertise in the process of obtaining HBSS and ACAS kickstart ISOs from DISA.\nExtensive knowledge of building virtual servers, deploying, and patching all McAfee modules via the ePO, configuring McAfee policies for each environment STIGing HBSS Windows OS,McAfee policies to comply with benchmarks (Not reviewing or confirming), STIGing ACAS RHEL servers.\nAbility to Run SCAP scans on Windows and RHEL servers.\nDisplays knowledge of updating RedHat 7.9 and 8 as they are released\nSetup RedHat yum local rpm repositories to patch offline ACAS servers.\nDeploying Rogue sensors on each subnet \nIdentifying Rogue subnets and, rogue endpoints.\nAble to troubleshoot Security Center and Nessus scanner issues.\nBasic Qualifications:\nQualified candidates must possess a TS/SCI security clearance.\nSecurity+ \n5+ years of experience in understanding all aspects of systems engineering, including design and architecture.\nDemonstrated capability to identify security risks throughout information system network structures to include the Operating Systems, hardware, and various data transfer protocols.\nEffective communication and presentation skills (i.e., ability to present ideas effectively in formal and informal situations in group and individual settings).\nStrong planning, organizational, and time management skills (i.e., ability to effectively plan, organize, and prioritize work, and to control and follow up to assure work completion).\nDemonstrated initiative (i.e. initiate appropriate action without being directed) and ability to work independently. \nFunctional Responsibilities:\nDesign, implement, and maintain complex information technology systems. To include designing the basic computing infrastructure to accomplish key tasks, establishing networking rules for cybersecurity, and troubleshooting network errors or other technical issues. \n\nLead the development of technical solutions, from refining customer requirements through design, build, test, and deployment. \nDocument and communicate technical solutions and results of analyses leading to recommended courses of action.\nMinimum Education:\nA bachelor’s degree in computer science, information technology, or related. \nEducation and experience requirements may be substituted with:\nA master’s degree (in subjects described above) and 3 years of experience.\nNo degree with 12 years of intensive and progressive experience demonstrating the required proficiency levels related to the task.\n\n-------------------------------------------------------------------\nWho We Are \nSunayu, LLC serves as a premier technology partner to the Defense and Intelligence communities, delivering mission-critical engineering solutions across the nation. Our operations are anchored in a commitment to trust, accountability, and ethical transparency, ensuring the high-performance outcomes necessary to protect our country's most vital interests. \nCulture\nOur strength lies in our community: Our team prioritizes collaboration, professional growth, and encourages open communication. At Sunayu, we don't just secure the mission-we grow together.\nCareer Development\nWe support and encourage our team members to continue their professional growth by providing company-reimbursed training and continuing education of up to $5,000 per year. We also participate in many industry conferences and events where we share our expertise and experiences.\nPay Rate\nSalary range considers factors such as (but not limited to) scope and responsibilities of the position, candidate's work experience, education/ training, key skills, as well as market and business considerations when extending an offer.\n\nBenefits\n3 Medical Plan Options\nDental and Vision \nFSA, DCFSA, HSA\nLife/AD&D Insurance\nShort-Term & Long-Term Disability \nEmployee Assistance Program (EAP)\nTraining and Educational Assistance\nPaid Time Off (PTO)\n11 Federal holidays \n401k plan with up to a 6% match (100% immediate vesting) \nEqual Opportunity Employer\nSunayu, LLC is an Equal Opportunity/Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, gender expression, national origin, age, protected veteran status, disability status, marital status, genetic information, medical condition, or any other characteristic protected by law.","description_format":"text","description_chars":5504,"description_truncated":false,"requirements":{"experience_years_min":5,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":true,"languages":[]},"benefits":["401k plan"],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Information Security"],"lifecycle":[{"event":"open","at":"2026-10-14T07:34:18Z"}],"visa":[],"liveness":{"score":41,"band":"fade","label":"Fading","p_open":1,"p_active":0.75,"p_room":0.55,"age_days":28,"expected_fill_days":27,"reasons":["conf:0","velocity","win:tail"],"computed_at":"2026-10-20T05:45:00Z"},"pay":null,"html_url":"https://alion.io/job/sunayu-information-systems-security-engineer-isse-tssci","json_url":"https://alion.io/job/sunayu-information-systems-security-engineer-isse-tssci.json","meta":{"generated_at":"2026-10-20T14:16:18Z","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":16008,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-21T00:00:00Z"}},"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":4422519},"rest":"https://alion.io/mcp/rest/get_company?id=4422519"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fsunayu-information-systems-security-engineer-isse-tssci"},{"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%2Fsunayu-information-systems-security-engineer-isse-tssci"},{"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%2Fsunayu-information-systems-security-engineer-isse-tssci"},{"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/sunayu-information-systems-security-engineer-isse-tssci\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fsunayu-information-systems-security-engineer-isse-tssci"}]}