Lionel Stephen Castro Jr

Lionel Stephen Castro Jr Email and Phone Number

Senior Security Analyst @ General Dynamics Information Technology
Washington, DC, US
Lionel Stephen Castro Jr's Location
Washington, District of Columbia, United States, United States
Lionel Stephen Castro Jr's Contact Details

Lionel Stephen Castro Jr work email

Lionel Stephen Castro Jr personal email

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About Lionel Stephen Castro Jr

Accomplished IT professional with demonstrated success implementing strategic IT initiatives that improve business functionality with positive impacts on the bottom line. Skilled IT supervisor with proven ability to lead and motivate teams to maximize productivity. Technology savvy self-starter, adept at moving into new environments and extrapolate from existing experience to quickly adapt to new technologies fluently. Possess first-rate communications and collaboration skills to lead and work in concert with divers groups effectively. Specializes in multi-platform networks and creating scalable solutionsSpecialties: see resume

Lionel Stephen Castro Jr's Current Company Details
General Dynamics Information Technology

General Dynamics Information Technology

View
Senior Security Analyst
Washington, DC, US
Website:
kforce.com
Employees:
1
Lionel Stephen Castro Jr Work Experience Details
  • General Dynamics Information Technology
    Senior Security Analyst
    General Dynamics Information Technology
    Washington, Dc, Us
  • Kforce Inc
    Information Systems Security Officer
    Kforce Inc Apr 2024 - Present
    Tampa, Fl, Us
    Responsible for the assistance with certification and accreditation (C&A) of standalone computers and networks on the Treasury Foreign Intelligence Network (TFIN); review systems to identify potential security weaknesses, recommend improvements to amend vulnerabilities, implement changes, and documents upgrades; assist with managing Cybersecurity risk using the Risk Management Framework; as well as assist with TFIN data spillage ensuring spillages are reported to appropriate parties within 24 hours.Inform/explain users about security measures such as potential threats; install software; implement security measures and monitor networks; review information necessary to maintain security and establish functioning external barriers using security tools and other measures; define, create, and maintain the documentation for certification and accreditation of each information system in accordance with government requirements; and including assessment of the impacts on system modifications and technological advances.Review systems and logs to identify potential security weaknesses, verify security methods, and recommend improvements to amend vulnerabilities; implement and document findings and changes; assist in managing, maintaining, closing vulnerabilities; assist in managing and maintaining a plan of action and milestones (POA&M); assist with Federal Information Security Management Act (FISMA) and other applicable IT audits and inspections; assist with assessing and responding to security-related requests within various ticketing systems; as well as assist with maintaining operational security posture for information systems.
  • Tyto Athene, Llc
    Senior Cyber Operations Specialist
    Tyto Athene, Llc Sep 2023 - Mar 2024
    Herndon, Virginia, Us
    Provide security requirements identification, analysis, allocation, and tracking support utilizing DoD Risk Management Framework (RMF) documentation as required; and mitigate any security-related issues or incidents that may introduce security risks or that do not comply with existing security-related policies, regulations, or standards to maintain an ATO for all components of the Marine Corps ITSM Tool and component systems. Mitigate all issues that may impact the security and authorization of the Marine Corps ITSM Tool. The contractor shall conduct identification analysis, allocation, and tracking support by DoD RMF; provide security requirement documentation as required, and comply with cybersecurity guidelines. The contractor shall enter A&A information and supporting artifacts into the Marine Corps Certification and Accreditation System Tool (MCCAST) system.Develop and update all engineering documentation and artifacts for accreditation packages, scanning, and remediation of findings; provide required security SCAN reports and Plan of Action and Milestones (POA&Ms) within established timeframes. The contractor shall submit updates to existing accreditation packages to accompany all changes to components within EEVE, ZONE A, and EITC enclaves; and create new accreditation packages for all components outside the ZONE A and EITC enclaves, supported by the Government Cybersecurity (CY) staff where Government approvals andinputs are required by policy as needed. Ensure the ATO is retained through all Marine Corps ITSM upgrades and capability improvements.
  • Jasint Consulting And Technologies, Llc
    Informaton Systems Security Manager
    Jasint Consulting And Technologies, Llc Aug 2022 - Aug 2023
    Columbia, Maryland, Us
    Plans, organizes, performs, implements, and manages the activities of the WSD/MP61 as an Information Systems Security Manager, (ISSM) to ensure the Electronic Security System (ESS) comply with legal and regulatory requirements; analyzes ISSM processes, unusual problems, questions, and cybersecurity data to ensure the appropriate operational security posture is maintained; and identify software/hardware problems, and / or cybersecurity risks and develops / implements appropriate mitigation an countermeasure actions.Represents and supports the WSD / MP61 and establishes, maintains, and supports the Cybersecurity objectives of the organization, and serves as the primary Subject Matter Expert with all supported and supporting agencies; analyzes DoD Information Assurance Vulnerability Management (AIVM) alerts, bulletins, and technical advisories for security impact and implement directed actions; and recommend and advise senior managers in matters relating to cybersecurity requirements based upon cyber directives, technical knowledge and a firm comprehension of the operational requirements and mission objectives.Conducts technical assessments in accordance with the Risk Management Framework (RMF) process and Defense Information Systems Agency (DISA) standards; ensures information systems security officers and privileged user evaluate security problems and report technical vulnerabilities and security incidents; as well as delegates specific authority to security officer personnel for carrying out their respective duties
  • Vor Technology
    Information Systems Security Officer / Information Systems Security Manager Assistant
    Vor Technology Mar 2022 - Jul 2022
    Assisted the DISA SSO on issues concerning the overall Automated Information Systems (AIS) security posture of DISA SCIFs. Formulated and managed systems policy consistent with specific responsibilities as instructed by the Director of National Intelligence (DNI), the Defense Intelligence Agency (DIA), the National Security Agency (NSA), and DISA. Reviewed and interpreted legislation, Executive orders, national and Agency policy issuances to determine applicability and required implementation by Agency activities; provided technical expertise and strategic support in the application of policies and procedures relating to Sensitive Compartmented Information (SCI) security, TEMPEST, communications security, and Automated Information Systems (AIS) security; as well as monitored and enforced SCI computer security measures.As the subject master expert for AIS security matters, interfaced directly with national level security policy officials and senior-level managers on matters involving the processing, protection, and destruction of SCI AIS material. Implemented DISA’s SCI policies and procedures for the classification and protection of classified national defense and other sensitive information originated or controlled by supported activitiesAssisted the Information System Security Manager (ISSM) in meeting the duties and responsibilities assigned; warranted that cybersecurity and cybersecurity-enabled software hardware, and firm ware comply with appropriate Department of Defense (DoD) and Intelligence Community (IC) security configuration guidelines; executed and enforced all information system cybersecurity policies and procedures, as defined by its security Assessment and Authorization (A&A) documentation; maintained a working knowledge of the system or enclave functions, its technical cybersecurity safeguards, and its operational cybersecurity measures; and ensured that all users have the requisite security clearances and supervisory
  • Peraton
    Network Engineer Ii
    Peraton Sep 2019 - Jul 2022
    Reston, Virginia, Us
    Support the Public Safety Network (PSNet) to provide the technical, analytical, and equipment-related IT support services required to achieve CNIC’s mission of critical Protection Ashore, Public Safety/Anti-Terrorism (ATFP), and Emergency Management missions, functions, and requirements. Monitor, troubleshoot, analyze, and maintain the Nav PSNet; interface with customers and government representatives on network issues that varies and ranges from simple to complex; create and complete incident cases using BMC Remedy ITSM; provide in-depth knowledge and technical expertise in the areas of design, installation, maintenance and support of network infrastructure following established methodologies and processes.Perform extensive root cause analysis, problem determination, and support of technical issues related to MPLS, IPSec, basic router/switch/firewall configurations, and diverse routing protocols; handles level 2 and 3 escalation issues through troubleshooting highly complex network infrastructure problems; require significant research and analysis and working closely with the POC onsite in client location to create resolutions proactively and reactively.
  • General Dynamics Information Technology
    Information Systems Security Analyst
    General Dynamics Information Technology Sep 2019 - Feb 2022
    Falls Church, Virginia, Us
    As on-site point of contact, responsibilities include and not limited to communicating directly with civil engineering, communications squadrons; base support as an interface back to the team at Tyndall Air Force Base. The single site representative who operates and sustains local equipment, coordinates with field install teams, liaises with base support personnel. Performs operation, maintenance, and sustainment (OM&S) of networks systems, IA controls, cyber ops, and reporting support. Perform all procedures necessary to ensure the safety of information systems assets and to protect systems from intentional or inadvertent access or destruction. Analyze and communicate information technology security requirements to cross functional teams that can be implemented and tested within the enterprise architectures and hardware.Performs Computer Security Incident Response activities for a large organization, coordinates with other government agencies to record and report incidents; monitor and analyze Intrusion Detection Systems (IDS) to identify security issues for remediation; recognizes potential, successful, and unsuccessful intrusion attempts and compromises thorough reviews and analyses of relevant event detail and summary information; evaluate firewall change requests and assess organizational risk; communicates alerts to agencies regarding intrusions and compromises to their network infrastructure, applications and operating systems; assists with implementation of counter-measures or mitigating controls.
  • Sealing Technologies, Inc.
    Network Security Engineer
    Sealing Technologies, Inc. Apr 2019 - Sep 2019
    Columbia, Maryland, Us
    Identify applicable test requirements from customer provided documents or requirements that have been specified by the customer specifically for a test; development of test-specific test plans to include a description of the test background, the test purpose, applicable test requirements, the test scope, test limitations, test methodology, design diagrams and how the test results will be captured; development and presentation of Test Readiness PowerPoint slide deck that includes the test date(s), test objective, test participants, test assessment areas, test dependencies, test architecture, site readiness status, system readiness status, and testers readiness status; Set up architectures defined in test plans; coordinate any hardware installs, license updates, cabling/recabling, software downloads, and cooperating with the Laboratory Subject Matter Experts (SME) team; test execution: run tests and evaluate results to ensure that all required data to assess the System Under Test (SUT) has been collected; Development and presentation of a Quick Look Report (Test Report) slide deck that includes the Test Date(s), Test Objective, Test Participants, Test Assessment Areas, Test Dependencies, Test configuration, Test Methodology, Test Architecture, and pertinent Test Results (such as Summary, connections per Second, Bandwidth, Functional Requirements Results, and Raw Data).CCNA level tasks to include basic network architecture design and implementation, support Cisco ASA, Juniper F5, to include configuration updates, software testing, and lifecycle refresh, utilizing various packet capture and analysis tools, support routing protocols such as BGP, OSPF, EIGRP, layer 2 technologies: ARP, PVST+, 802.1Q, and other protocols: RADIUS, TACAS+, SNMP, VRF, DNS, and HTTPS, as well as, implement and test network architecture changes and implementation plans within a test environment.
  • Am Pierce & Associates, Inc.
    Help Desk Specialist I
    Am Pierce & Associates, Inc. Oct 2018 - Mar 2019
    California, Md, Us
    Provide Tier I incident management through established Help Desk Standard Operating Procedures (SOPs). Serve as the first point of contact for customers seeking technical assistance over the phone, via email, or in person to open REMEDY tickets and initiate the repair response process.Gain knowledge and skills from experienced administrators and technicians to bolster career through support to a variety of systems engineering, maintenance, and information systems for a National Capital Region client. Work under general supervision to provide first tier support to engage end users for desktop, server, software, applications and hardware fix actions while monitoring performance of classified and unclassified LANs. Learn system administration to create and maintain user accounts; and develop, maintain, and review spreadsheets and schematics to support Configuration Management and Logistics process. Perform shift work at a 24x7x365 Operations Center.
  • Avening Management And Technical Services, Llc
    Network Operations Specialist Senior
    Avening Management And Technical Services, Llc Apr 2017 - Sep 2018
    La Plata, Maryland, Us
    Under broad direction, oversee the infrastructure and network operation, responding appropriately to alerts and events. Oversee incident resolution, ensuring appropriate response to escalations. Coordinate infrastructure repairs, including directing remote activities to ensure continuity for service delivery. Review root cause analysis documentation to address performance management and incident correlation issues. Provide data center support where appropriate. Oversee daily shift activities and document in appropriate reporting and ticketing tools and ensure continuity for any outstanding issues. Provide incident notification to Government representatives.
  • Ara
    Junior Systems Administrator
    Ara Apr 2017 - Sep 2018
    Albuquerque, Nm, Us
    Deliver Information Technology support, research, development, on the job training experience, and decision making to the Defense Threat Reduction Agency (DTRA) as part of its 24/365 Reachback team contract. Primary focus is to respond to Chemical, Biological, Radiological, Nuclear and (high yield) Explosive (CBRNE) related requests for information (RFIs) from the Combatant Commands (COCOMs), Office of the Secretary of Defense (OSD), Joint Staff (JS), Intelligence Community (IC), Department of Homeland Security (DHS), first responders, and other local/state/federal agencies. Utilize JIRA ticket system to assess technical incidents; maintain present software application updates to NIPR/SIPR desktops and laptop devices; provide strict security observation of network and software devices; Reset password to analyst team when login issue occur by operating Active Directory; and implement penetrate testing to new and current software applications for future Windows 10 Operating System image build on a quarterly basis.Interact with various IT department to meet the mission of the organization; offer assistance with other groups and cross-functional teams to complete IT projects; possess strong multi-tasking abilities, team-orientation, and contribution to assist with hardware, software, and network services to meet demands.
  • Lookingglass Cyber Solutions, Inc.
    Associate Cyber Security Analyst
    Lookingglass Cyber Solutions, Inc. Dec 2016 - Mar 2017
    Reston, Va, Us
    Supports a fully staffed, 24x7 Computer Security Center which involve critical duties and responsibilities, resolve complex technical issues during crisis situations, inclement weather, and holidays. Utilize knowledge of common Internet protocols, concept and applications, basic comprehension of HTML, PHP, Javascript, SMTP, POP3, IMAP, FTP, HTTPS, SSL, IRC, RSS, blogging, social networking sites, and web site design and hosting method to monitor and protect client;s web based Internet and Intranet.Search to verify, respond, and report incidents involving brand infringement, trademark violations, phishing and malware attacks, and online impersonations. Assist in completion of unresolved cases; as well as, follow corporate escalation protocols to assess IT violations from outside threats.
  • Shi International Corp.
    Desktop Developer/Technician
    Shi International Corp. Jul 2015 - Apr 2016
    Somerset, Nj, Us
    Create, maintain, and implement SQL source code for the development and production of the Business proprietary resource that enables installation, updates, and patches for Microsoft Windows 7, Windows 8.1, and Windows 10 for all PC, laptops, tablets, and devices for end users throughout the company.Participate in team development, specification, and design of prototype application aimed to assist end users to complete computer tasks for software. Work with SQL, JavaScript, and C# programming languages and Microsoft Windows 7, Windows 8.1, and Windows 10 operating systems to create software that meet client requirement. Operate as a single point of contact for end users to receive support and maintenance within the organization’s desktop, laptop and tablet computing environment. This includes, but not limited to installing, diagnosing, repairing, maintaining, and upgrading all PC hardware and equipment to ensure optimal workstation performance in an expedient manner to achieve the business needs.Assist in developing long-term strategies and capacity planning to accommodate future hardware requirements; conduct research on desktop products in support of PC procurement and development efforts; evaluate and recommend products for purchase; and create technical specifications for purchase of PC, laptops, tablets, desktop hardware and related products.
  • Cablevision
    Ool Level 2 - Technical Support Group Representative
    Cablevision Sep 2012 - Jul 2015
    Bethpage, New York, Us
    BASIC FUNCTION:Troubleshoot Level 2 Technical Support calls from Optimum Online and Digital Set Top Box customers who are using the supported software/hardware. This is done providing the highest quality customer service. Troubleshooting requires guiding and educating customers through established troubleshooting procedures. DUTIES AND RESPONSIBILITIES:Guide customers through established troubleshooting procedures to identify and resolve technical problems. Primary call types are IP Address for supported Operating Systems, DHCP Server Issues, RF Signal and Connectivity, and Client Side Issues. Other call types may be added as business needs require or as call mix changes. Required to maintain or exceed departmental productivity standards, quality standards and excellent attendance. Responsible for keeping informed of new products, services, and procedures. Required to notify management of any trends that may lead to service interruptions for Optimum Online customers. May be assigned projects that develop skills to support career advancement as business needs require. Participates in special projects and performs other duties as assigned. SCOPE:Position is vital to the customer support infrastructure for the Optimum Online product division.QUALIFICATIONS:Complex knowledge of DOS, Win 3.1, 95, 98, NT, 2000, XP, Vista, Apple/MAC, Internet communications, and protocols. Working knowledge of PC/MAC hardware and software. Ability to guide customers through established troubleshooting procedures to identify and resolve technical problems. Demonstrated expertise in one or more of the following specialties. Network (RF Troubleshooting, E-Mail, DCHP Server, routers), Systems (Hardware, Software, Operating Systems, New Technology) and Communications.
  • Robert Half Technology
    Help Desk Support Specialist
    Robert Half Technology Jul 2011 - Sep 2011
    Menlo Park, Ca, Us
    • Assists staff with the installation, configuration, and ongoing usability of desktop computers, peripheral equipment and software within established standards and guidelines.• Ensure desktop computers interconnect seamlessly with diverse systems including associated validated systems, file servers, email servers, computer conferencing systems, application servers, and administrative systems.• Interact with numerous computer platforms in a multi-layered client server environment.• Train and orient end users on use of equipment and software application function ability.
  • Comp2Kids
    Technician/ Instructor
    Comp2Kids Apr 2011 - Aug 2011
    Bronx, Ny, Us
    • Instructed New York City middle school students and parents on basic navigation of Microsoft Office, the Internet, email account setup, secure internet browsing and PC maintenance.• Helped bridge the digital divide by implementing instructions on PC troubleshooting of the operating system for maximum performance.• Distributed refurbished desktops, educational programs and peripherals to underprivileged families.
  • Lehman College
    Math Teacher Assistant
    Lehman College Aug 2010 - Apr 2011
    Bronx, Ny, Us
    • Instructed students individually or in small groups who achieved 86.4% passing rate and ‘B’ average.• Responsible for assisting students with Math, computers, creating handouts, and providing website materials.• Assisted in specific strategies to help students be successful in Mathematic courses including Pre-Algebra, Algebra, Pre-Calculus, Calculus, Statistics, and Linear Algebra.• Assisted in administering student evaluations; as well as provided feedback on student learning and progress with lead class instructor.
  • Per Scholas
    Student
    Per Scholas 2011 - 2011
    Bronx, Ny, Us
  • Allied Barton Security Services
    Security Officer
    Allied Barton Security Services Feb 2010 - Jul 2010
    Us
    • Welcomed visitors, answered questions and provided information pertaining to assigned facilities.• Appeared in uniform in photograph at security conference program. • Inspected and maintained all keys, locks, doors, windows, and admitted authorized personnel into facilities after business hours. • Acted as a deterrent against criminal activities, fire, illegal entry, and unauthorized use of equipment and facilities.

Lionel Stephen Castro Jr Skills

Troubleshooting Microsoft Office Windows Customer Service Computer Hardware Access Networking Microsoft Access Certified Advanced Security Practitioner Comptia Mobility+ Certfication Comptia A+ Certification Information Technology Windows 7 Itil V3 Foundations Certified Software Installation Management Comptia Security+ Certification Windows Xp Technical Support Computer Repair Public Speaking Project Management Software Documentation Data Entry Telecommunications Analysis Comptia Network+ Security Ip Laptops Dhcp Routers Operating Systems Html Hardware System Administration Servers Windows Vista Comptia A+ A+ Certified Windows Server Help Desk Support Active Directory Lotus Notes Antivirus Network Administration

Lionel Stephen Castro Jr Education Details

  • North Carolina Agricultural And Technical State University
    North Carolina Agricultural And Technical State University
    Computer Science
  • Lehman College
    Lehman College
    Computer Science
  • Per Scholas
    Per Scholas
  • Per Scholas
    Per Scholas

Frequently Asked Questions about Lionel Stephen Castro Jr

What company does Lionel Stephen Castro Jr work for?

Lionel Stephen Castro Jr works for General Dynamics Information Technology

What is Lionel Stephen Castro Jr's role at the current company?

Lionel Stephen Castro Jr's current role is Senior Security Analyst.

What is Lionel Stephen Castro Jr's email address?

Lionel Stephen Castro Jr's email address is li****@****ail.com

What is Lionel Stephen Castro Jr's direct phone number?

Lionel Stephen Castro Jr's direct phone number is +173280*****

What schools did Lionel Stephen Castro Jr attend?

Lionel Stephen Castro Jr attended North Carolina Agricultural And Technical State University, Lehman College, Per Scholas, Per Scholas.

What skills is Lionel Stephen Castro Jr known for?

Lionel Stephen Castro Jr has skills like Troubleshooting, Microsoft Office, Windows, Customer Service, Computer Hardware, Access, Networking, Microsoft Access, Certified Advanced Security Practitioner, Comptia Mobility+ Certfication, Comptia A+ Certification, Information Technology.

Who are Lionel Stephen Castro Jr's colleagues?

Lionel Stephen Castro Jr's colleagues are Joshua Lor, Erick Martinez, Matt Cohen, Lachelle Alston, Kellie Fox, Judith Masipa, Amanda Plummer.

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