Senior Network Engineer/ Architect Requires: TS/SCI Security Cl Jobs

Senior Network EngineerTulzi Technologies, LLC (Tulzi) prides ourselves on an open, and honest culture in the workplace which builds a morale conducive to inspiring growth on our team, while balancing lifestyle by supporting personal and family goals with flexibility. Tulzi offers secure network systems and software engineering solutions in both public and private sectors. With certified expert consulting the team at Tulzi is able to address the customers mission, and follow through in the systems development life cycle.

Clearance Required: TS/SCI Title: Network Engineer Location: Tampa, FL Salary Range: $140-150K We are seeking a Senior Network Engineer to support a secure, standalone enterprise environment. This role is responsible for designing, maintaining, and securing network infrastructure supporting virtualized systems, application platforms, and compliance- driven operations.Roles & Responsibilities:Design, implement, and maintain Layer 2/Layer 3 network infrastructureConfigure and support Cisco Catalyst (9300/9500 series) and Cisco NX- OS-based switching platformsManage VLANs, trunking, segmentation, ACLs, firewall rules, and traffic segmentationMaintain network topology, routing logic, and traffic flow designSupport evaluation and future deployment of data center-optimized switching platforms for modernization initiativesDeploy and support 802.1X authentication using Cisco ISE and LDAP IntegrationImplement machine authentication with user fallback, dynamic VLAN assignment, and fail-open designManage TACACS+ for network device administrationSupport networking for VMware ESXi / vCenter environments, including vSwitch and distributed switch configurationProvision and maintain VM networkingTroubleshoot multi-tier service flows across infrastructure layersImplement and maintain STIG-compliant network configurationsEnforce port security, DHCP snooping, Dynamic ARP Inspection, and secure management accessSupport RMF security controls and FIPS-complianceIntegrate network devices with SIEM (Elastic), Zabbix, or equivalent monitoring toolsTroubleshoot network connectivity, authentication failures, and application reachability issuesPerform structured troubleshooting using logs, packet capture, and service validationSupport change control (CAB) processesExecute network upgrades (e.g., Cisco IOS-XE / NX-OS) with validation and rollback planningMaintain documentation including VLAN mappings, IP plans, and network diagramsSupport network components of backup and disaster recovery operationsValidate connectivity for backup systems and storage platformsAssist in failover and restoration proceduresWork with systems engineers, security teams, and application ownersProvide network impact analysis for system architecture decisionsRequired Qualifications:An active TS/SCI security clearance.Current DoD 8570 certification at IAT level II, (i.e. Security+ CE).3+ years of experience in network administration/engineering in a Cisco environment.Experience with Cisco switches and routersA solid foundation in networking including routing, switching, and security.Ability to work in a high-tempo operational environment where priorities change frequently.Must be able to interface with individuals at all levels of the organization both verbally and in writing.Must be well-organized with the ability to coordinate and prioritize multiple tasks simultaneously.Desired Qualifications:Experience with hybrid connectivity between on-prem and AWSFamiliarity with AWS VPC design, Site-to-Site VPN, Client VPN, and Direct ConnectUnderstanding of extending secure or restricted environments into cloud architecturesKnowledge of BGP routing concepts, including route advertisement, path selection, redundancy, and failoverExperience with BGP in hybrid cloud or enterprise routing environmentsAbility to troubleshoot routing issues such as asymmetric paths and route filteringExperience with Cisco NX-OS platforms (e.g., Nexus series)Familiarity with data center technologies such as: o vPC (Virtual Port Channel) o Leaf-spine architectures o High-throughput east-west traffic designAbility to support or lead network modernization efforts toward data center-optimized architecturesExperience with Terraform (AWS networking) or Ansible for network automationAbility to automate provisioning, validation, and compliance checksBenefits:Health and Wellness BenefitsMedical Insurance (three CareFirst healthcare plans to choose from, Dental and Vision Insurance, 75% covered for employee/ 50% per dependant)Health Savings Account (HSA) contributions $1500 individual/ $3000 familyCompany-paid Life Insurance and AD&D coverageCompany-paid Short-term and Long-term Disability InsuranceEmployees receive 20 days of vacation/10 holidays built into hourly rate/ 5 days of Administrative time (currently used for snow, jury, bereavement)Pre-tax 401k program including 6% company match100% fully vested from eligibility date