{"id":2434309,"url":"https://alion.io/job/teksynap-information-systems-security-engineer-isse","title":"Information Systems Security Engineer (ISSE)","company":{"id":3119632,"name":"TekSynap","domain":"teksynap.com","url":"https://alion.io/company/teksynap","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"iCIMS","truth_index":null},"role":"Security","role_family":"Security","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":["Arlington, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":130000,"max":160000,"currency":"USD","period":"year","gross":null,"usd_annual":160000},"salary_estimate":null,"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":"2026-10-13T10:14:56Z","employer_posted_date":"2026-10-13","last_verified_at":"2026-10-14T02:45:42Z","board_verified":true,"closed_at":null,"days_open":0,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":0},"description":"Responsibilities and Qualifications\nRESPONSIBILITIES\nThe ISSE shall perform or review technical security assessments of computing environments to identify points of vulnerability as well as non-compliance with established cybersecurity standards, regulations, and recommended mitigation strategies. This 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.\nKnowledge 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), and STIGing ACAS RHEL servers.\nAbility to Run SCAP scans on Windows and RHEL servers.\nDisplays knowledge of updating RedHat 7.9 and 8 rpms as they are released, including setting up RedHat yum local rpm repositories to patch offline ACAS servers.\nDeploying Rogue sensors on each subnet, and identifying Rogue subnets and endpoints.\nAble to troubleshoot Security Center and Nessus scanner issues.\nDesign, implement, and maintain complex information technology systems.\nDesign the basic computing infrastructure to accomplish key tasks, establishing networking rules for cybersecurity, and troubleshooting network errors or other technical issues.\nLead the development of technical solutions, from refining customer requirements through design, build, test, and deployment. Document and communicate technical solutions and results of analyses leading to recommended courses of action.\nREQUIRED QUALIFICATIONS\nActive TS/SCI security clearance.\nActive CompTIA Security+ certification.\nA bachelor’s degree in computer science, information technology, or a related field. Education and experience requirements may be substituted with:1.) A master’s degree (in subjects described above) and 3 years of experience.\n2.) No degree with 12 years of intensive and progressive experience demonstrating the required proficiency levels related to task.\n\n5+ years of experience with 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.\nOverview\nWe are seeking an 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.\nTekSynap is a fast-growing high-tech company that understands both the pace of technology today and the need to have a comprehensive well planned information management environment. “Technology moving at the speed of thought” embodies these principles - the need to nimbly utilize the best that information technology offers to meet the business needs of our Federal Government customers.\nWe offer our full-time employees a competitive benefits package to include health, dental, vision, 401K, life insurance, short-term and long-term disability plans, vacation time and holidays.\nVisit us at www.TekSynap.com.\nApply now to explore jobs with us!\nThe safety and health of our employees is of the utmost importance. Employees are required to comply with any vaccination requirements mandated by contract, applicable law or regulation.\nBy applying to a role at TekSynap you are providing consent to receive text messages regarding your interview and employment status. If at any time you would like to opt out of text messaging, respond \"STOP\".\nAs part of the application process, you agree that TekSynap Corporation may retain and use your name, e-mail, and contact information for purposes related to employment consideration.\nAdditional Job Information\nWORK ENVIRONMENT AND PHYSICAL DEMANDS\nThe work environment characteristics described here are representative of those an employee encounters while performing the essential functions of the job. Reasonable accommodation may be made to enable individuals with disabilities to perform the essential functions.\nLocation: Arlington, VA\nType of environment: Office\nNoise level: Medium\nWork schedule: Schedule is day shift Monday - Friday. May be requested to work evenings and weekends to meet program and contract needs.\nAmount of Travel: less than 10%\nPHYSICAL DEMANDS\nThe physical demands described here are representative of those that must be met by an employee to successfully perform the essential functions of this job. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.\nWhile performing the duties of this job, the employee is regularly required to use hands to grip, handle, or feel; reach with hands and arms; and talk or hear. The employee is regularly required to stand; walk; sit; climb or balance; and stoop, kneel, crouch, or crawl. The employee is regularly required to lift up to 10 pounds.\nThe employee is frequently required to lift up to 25 pounds; and up to 50 pounds. The vision requirements include close vision, distance vision, peripheral vision, depth perception, and ability to adjust focus.\nWORK AUTHORIZATION/SECURITY CLEARANCE\nUS Citizen\nActive TS/SCI clearance\nWAGE INFORMATION\nTarget salary range: $130,000.00 - $160,000.00. The salary range displayed is an estimate only and is not a guarantee of compensation or salary, and will be determined on several factors regarding the individual’s particular combination of education, knowledge, skills, competencies and experience, as well as contract parameters and organizational requirements. The displayed salary is one component of the total compensation package for employees.\nOTHER INFORMATION\nPlease note this job description is not designed to cover or contain a comprehensive listing of activities, duties or responsibilities that are required of the employee for this job. Duties, responsibilities and activities may change at any time with or without notice.\nTekSynap is a drug-free workplace. We reserve the right to conduct drug testing in accordance with federal, state, and local laws. All employees and candidates may be subject to drug screening if deemed necessary to ensure a safe and compliant working environment.\nMany positions require specific certifications and/or the ability to obtain a security clearance. Security clearances may only be granted to U.S. citizens. Applicants who accept an offer of employment may be subject to investigations performed by TekSynap and/or the Government to verify the candidate meets the required qualifications and other eligibility requirements.\nEQUAL EMPLOYMENT OPPORTUNITY\nIn order to provide equal employment and advancement opportunities to all individuals, employment decisions will be based on merit, qualifications, and abilities. TekSynap does not discriminate against any person because of race, color, creed, religion, sex, sexual orientation, gender identity, protected veteran status, national origin, disability, age, genetic information or any other characteristic protected by law (referred to as “protected status”). This nondiscrimination policy extends to all terms, conditions, and privileges of employment as well as the use of all company facilities, participation in all company-sponsored activities, and all employment actions such as promotions, compensation, benefits, and termination of employment.\nTekSynap is committed to ensuring that our online application process provides an equal employment opportunity to all job seekers, including individuals with disabilities. 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