Senior Security Engineer

Join to apply for the Senior Security Engineer role at TCG1 day ago Be among the first 25 applicantsJoin to apply for the Senior Security Engineer role at TCGGet AI-powered advice on this job and more exclusive features.You've stumbled upon the rare B Corp government contractor! At TCG, we aim to prove that businesses can be good to their employees and responsible to their community while being profitable. We're an award-winning IT solutions provider to the Federal government seeking a Senior Security Engineer to join our team.US Citizenship is required for this role. In addition, the selected applicant must submit to a government background investigation and be favorably adjudicated before their first day.This position is primarily remote but will require occasional in-person meetings. The selected applicant must live within commuting distance of Washington, D.C.ResponsibilitiesPerforming security reviews of all application code before deploying to production environment and provided the results of the review to the MAX.gov ISSOMonitoring existing COTS products and Open Source tools and products for new security vulnerabilities or patchesAssessing risks from identified security vulnerabilities and providing expert recommendations on mitigationsReviewing software and hardware architectures for security implementations, assessing and reporting risks of these designs.Daily monitoring of systems for active attacks and break-ins, ensuring reporting and tuning these monitoring systemsUser profiling and analysis, reporting and active defense using Fortinet and OSS technologiesMonitoring and tuning system configurations to improve performance and address errorsSupporting development teams in implementing application specific monitoring for availability and functionalityMentoring team members on new and advanced techniques and technologiesEnsuring monitoring and defense against APTsFortinet WAF and firewall administration and maintenanceCleaning up data spills and attending briefings on current security threatsManaging Blue and Red team assessments, running practice scenariosReview and add defense in depth techniques to exist security profilesRequired SkillsA minimum of 8 years of relevant security and technical experienceIndependent problem-solving skills, strong analytical abilities, creativity, and a clear appreciation of end customer needsDemonstrated ability with advanced code assessment tools and reviewing their results for both dynamic and static scans (OWASP, SANS, CIS, etc)Experience with programming in some combination of Java/Perl/PHP/C/C++/go/Ruby/PythonWorking knowledge of web protocols (including lower layers, packet disassembly, routing, switching), ability to perform diagnostics, and knowledge of security best practicesExperience with compliance controls and security hardening for a US Government computer system at the FISMA Moderate or High levels.Advanced automation skills in bash shell scripting, python, curl, etcMultiple years of cross domain experience in IT domains such as network administration, database administration, or software developmentAbility to create system documentation for ongoing system managementDemonstrated ability to communicate effectively, both orally and in writingDemonstrated ability to learn new technologies and skillsMust be skilled at planning and organizingMust be adept at prioritizing, problem assessment, and problem-solvingMust demonstrate attention to detail and accuracyMust have a strong customer service orientationMust be flexible and adaptableAbility to work directly with clients at all levels of an organization, including high-level internal and external stakeholdersPreferred SkillsOffensive Security Certified Professional (OSCP) certificationTroubleshooting, debugging, and diagnostic skills in a complex IT environmentFamiliarity with at least one Continuous Integration/Continuous Delivery (CI/CD) mechanism.System administration experience building, configuring, and assessing Windows/RHEL/Ubuntu/ContainersWorking knowledge of various security-focused enterprise toolsetsExperience with COTS product installation, integration & supportExperience with CSS and graphing librariesFortinet Firewall Administration and maintenanceExperience with information gathering and information monitoring, working knowledge of Risk Management Framework (RMF)Ability to create system documentation for ongoing system managementExperience in an Agile/Scrum development environmentProficiency with MS Excel, MS Word and other MS Office applicationsEducationBachelor's degree preferred, preferably in Computer Science, Information Technology, or a related field. Experience may be substituted in absence of a degreeTCG does not discriminate based on race, sex, color, religion, national origin, age, disability, caste, or veteran status.Our B Corp mission is reflected in our benefits, including offerings like health care, 401K, parental leave, adoption assistance, financial planning services, student loan repayment assistance, and training budget. There's more, see for yourself.TCG is recognized for treating employees well, in fact, in 2024 The Washington Post named TCG as a "Top Workplace" for the tenth straight year based on how our employees feel about the company, the benefits TCG offers, and the work/life balance that our staff achieves. Our CEO was ranked best, by TCG employees' votes, among all midsize companies in the Washington Post Top Workplace survey.Try us ... we'll make you ternal title/grade: System Engineer, E4Salary Range: $125,000 - $150,000All individuals being hired to work for TCG must submit to, and successfully pass, a pre-employment background investigation prior to reporting for their first day of work. The pre-employment background investigation will include verification of employment and education, as well as, a criminal and DMV check.Additional documentation and background checks will also be required for positions that require clearance from the Federal government.Job Posted by ApplicantProSeniority levelSeniority levelMid-Senior levelEmployment typeEmployment typeFull-timeJob functionJob functionInformation TechnologyIndustriesIT Services and IT ConsultingReferrals increase your chances of interviewing at TCG by 2xGet notified about new Senior Security Engineer jobs in Washington, DC.Fort Meade, MD $100,000.00-$133,633.00 11 hours agoSecurity Engineer - Senior - Lead ***Top-Secret Clearance***Washington, DC $180,000.00-$210,000.00 2 weeks agoSAP Security Architect- Remote with travelFort Meade, MD $100,000.00-$133,633.00 12 hours agoFort Meade, MD $100,000.00-$133,633.00 10 hours agoDHS Sr. Operational Technology (OT) Security EngineerWashington, DC $195,000.00-$225,000.00 8 months agoWashington, DC $106,400.00-$272,300.00 3 days agoLead Principal Security Engineer TA2-13 HSENMaryland, United States $106,400.00-$272,300.00 3 days agoSAP NS2 SeniorCyber Security Systems EngineerSenior Identity, Credential, Access Management Security EngineerSecurity Customer Experience Engineer ManagerWashington, DC $119,800.00-$258,000.00 2 weeks agoWashington, DC $75,000.00-$95,000.00 2 weeks agoSecurity Strategy, Risk and Resilience (SRR) Security Strategy Senior Analyst - Global Security OrganizationWashington, DC $106,920.00-$176,400.00 2 weeks agoSAP NS2 Sr. Security Automation EngineerSenior Principal Consultant - Security A&A Engineer (Clearance Required)Reston, VA $87,000.00-$178,100.00 2 weeks agoGlobal Practice Architect, Security GTM, Google CloudWashington, DC $218,000.00-$306,000.00 1 week agoSenior Cybersecurity Analyst / Information Security Manager - Top Secret ClearanceRockville, MD $150,000.00-$190,000.00 5 months agoArlington, VA $80,000.00-$94,000.00 1 month agoBCG Platinion | Principal IT Architect, Public Sector Industry Leader (Defense & Security, Civil Sector)Fort Meade, MD $176,829.19-$201,829.19 1 month agoSecurity Control Assessor Level 3 (FORECASTED)Annapolis Junction, MD $7,000.00-$20,000.00 3 weeks agoWe’re unlocking community knowledge in a new way. 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Created: 2025-09-17