Nina Maldonado
El Paso
Summary
Experienced Senior Telecommunications and Network Engineer with over 15 years leading cross-functional teams and delivering secure, scalable VoIP and network solutions across military, government, and enterprise environments. Skilled in Cisco technologies, Windows/Linux systems, and cybersecurity. Known for driving complex projects from planning to execution, mentoring technical staff, and collaborating with stakeholders to design reliable, compliant infrastructure that meets evolving business needs.
Overview
11
11
years of professional experience
1
1
Certification
Work History
Senior Network Engineer
Janus Research Group
09.2025 - Current
- Resolves routing (BGP, OSPF, DMVPN) and switching tactical multidomain network infrastructure through research, installation and customization, network administration, and network management support.
- Integrated Palo Alto firewalls with SIEM platforms (Splunk, SolarWinds) for real-time threat visibility and incident response automation.
- Conducted STIG compliance hardening and audit remediation for Network appliances, ensuring alignment with DoD cybersecurity standards.
- Developed and maintained firewall rule documentation, change control procedures, and disaster recovery plans for mission-critical infrastructure.
Senior Network Manager
Prime Technical INC.
08.2025 - 09.2025
- Directed the full redesign and upgrade of Cisco Unified Communications Manager (CUCM) from version 12.5 to 14, enhancing system performance, security, and feature availability across a multi-site VoIP infrastructure.
- Upgraded Cisco Unity Connection (CUC) from 12.5 to 14, ensuring seamless voicemail integration, directory synchronization, and compliance with DoD STIG requirements.
- Leveraged Cisco Prime Collaboration Deployment (PCD) to automate cluster migrations, system backups, and version upgrades, reduce manual intervention and minimize service disruption.
- Conducted pre-upgrade assessments, validated licensing, and performed compatibility checks to ensure readiness across 6,000+ endpoints.
- Rebuilt CUCM and CUC clusters with optimized dial plans, route patterns, and device pools to support scalability and simplified administration.
- Implemented and verified disaster recovery protocols using PCD, ensuring backup integrity and rapid restoration capabilities.
- Collaborated with cross-functional teams to validate call flow, voicemail routing, and integration with CUBE, SIP trunks, and LDAP post-upgrade.
- Documented upgrade procedures, rollback strategies, and system changes to support audit readiness and long-term maintainability.
Senior VoIP Engineer Advisor
General Dynamics Information Technology
02.2020 - 07.2025
- Collaborated in the development of the VoIP architecture and infrastructure of 16 Army Bases.
- Install, configure, and maintain CUCM, CUC, CUBE, Voice Gateways, Media Gateways, DHCP, and DNS, resolving client business problems through research, installation and customization, network administration, and network management support.
- Managed Active Directory, DNS, DHCP, group policies, and identity integrations to enforce secure access and streamline authentication workflows.
- Implemented STIG requirements and system hardening by applying patching, upgrades, and configuration management for infrastructure servers, ensuring compliance and operational continuity to meet the Defense Information System Agency standards.
- Directed and coordinated multiple teams in the comprehensive deployment, configuration, and cyber patching of 8 clusters within a controlled lab environment. Resulting in shorter migration times on site.
- Oversaw the end-to-end execution of enterprise VoIP migrations for Army bases, managing SME cluster transitions for more than 60,000 users and aligning technical teams to meet aggressive deployment timelines. Provided technical assistance to site engineers during configuration, cutover, migration, and outage periods.
- Successfully integrated a third-party system with Cisco Unified Communications Manager (CUCM), enabling emergency crash line calling for airport operations, updating ANI/ALI data for enhanced 911 response accuracy, and provisioning new servers to support high-volume hospital call centers—significantly improving organizational communication capabilities across critical sectors.
- Sustained open lines of communication with Army stakeholders and engineering teams to provide status reports, coordinate efforts, and ensure project deliverables remained aligned with mission requirements.
- Conducted risk analysis and implemented mitigation protocols to address potential issues during VoIP migration activities, ensuring compliance, continuity, and stakeholder confidence.
Unified Communications Engineer
VAE INC.
12.2018 - 01.2020
- Provisioned phone and user profiles, speed dials, display names, and voicemail settings within Cisco Unified Communications Manager (CUCM) to support dynamic user requirements across enterprise environments.
- Planned and executed VoIP infrastructure upgrades and migration activities, evaluating hardware/software compatibility and ensuring seamless integration with existing systems.
- Administered, operated, and maintained VoIP platforms and unified communications equipment, resolving issues through advanced diagnostics and system-level troubleshooting.
- Enhanced operational efficiency by improving monitoring of complex VoIP features and developing streamlined processes and interface requirements.
- Led the integration of full-scale VoIP/phone networks, including planning, design, installation, maintenance, and coordination across multi-site deployments.
- Monitored, analyzed, and resolved hardware/software issues affecting VoIP and phone network performance, ensuring high availability and minimal disruption.
- Devised solutions to moderately complex operational challenges within the constraints of installed equipment, optimizing system reliability and user experience.
- Utilized monitoring tools, performance analysis platforms, and network management software to isolate faults, assess performance trends, and trace data/protocol activity for proactive issue resolution.
Systems & Network Administration
Milvets Systems Technology, INC.
11.2015 - 11.2018
- Standardized and implemented scheduled maintenance plan documentation processes, improving operational consistency and audit readiness across IT systems.
- Performed Tier 3 network administration duties, delivering technical support, diagnostics, and troubleshooting for end users and mission-critical systems.
- Configured and managed Group Policies to enforce Active Directory-based control over operating systems, applications, and user environments across domain-joined devices.
- Provided system administrator support for the deployment, evaluation, and optimization of IT services tailored to government, military operations, and client-specific requirements.
- Administered Active Directory, managing users, computers, DNS zones, and organizational units (OUs) to maintain secure and efficient identity infrastructure.
- Oversaw LAN/WAN network communications, hardware, and application software operations, ensuring high availability and performance across distributed environments.
Technical Support
Imprimis, Inc.
04.2015 - 10.2015
- Diagnosed and resolved complex server issues, including Active Directory replication failures, authentication errors, and domain controller connectivity problems, ensuring system integrity and uptime across enterprise environments.
- Created and modified DHCP scopes to support dynamic IP allocation for networked devices, optimizing address management and reducing configuration conflicts.
- Conducted regular and secure system backups for sensitive data, validating restore points and ensuring compliance with organizational retention policies and disaster recovery protocols.
- Provisioned and managed network share drive access based on user roles and operational requirements, while performing routine maintenance and namespace updates on the Distributed File System (DFS) to support scalable file access across sites.
- Executed remote administration tasks using TeamViewer, including software installations, system diagnostics, and user support, enabling efficient troubleshooting and minimizing on-site intervention.
Information Technology Specialist | System Administrator
United States Army
03.2015 - 03.2007
- Processed and submitted IT accreditation packages in accordance with Network Operations Security Center (NOSC) requirements, ensuring systems met all cybersecurity, configuration, and documentation standards for operational approval.
- Installed, configured, maintained, and troubleshot both user-specific and enterprise-level software and hardware across classified and unclassified environments, often under high-pressure deployment timelines.
- Developed and implemented standardized procedures for securely storing and deploying Ghost images of authorized software across all user machines, streamlining provisioning and ensuring compliance with DoD software baselines.
- Performed component-level diagnostics and repair on LAN/WAN infrastructure, resolving connectivity and performance issues across routers, switches, and end-user devices in support of mission-critical operations.
- Created, managed, and decommissioned user accounts and profiles, including Public Key Infrastructure (PKI) and Common Access Card (CAC) credentials, ensuring secure authentication and access control across systems.
- Assembled, configured, and deployed desktop and notebook systems; installed command-standard and commercial off-the-shelf (COTS) software on government workstations in accordance with agency policies.
- Collected, documented, and maintained telecommunications security (TEMPEST) and operational procedure data to support compliance audits and safeguard sensitive communications infrastructure.
- Delivered consistent results in high-stress, time-sensitive environments, supporting rapid deployments and system readiness for military operations and government clients.
Education
B.S. - Cloud Computing and Network Administration
Western Governance University
Millcreek, UT05.2028
Skills
Enterprise Network Design & Engineering
Windows Server & Linux Administration
VoIP Architecture (CUCM, CUC, CUBE)
Monitoring & Diagnostics
Active Directory, DNS, DHCP, Group Policies
Routing & Switching (Cisco, VLANs, STP)
Virtualization (VMware, Load Balancing)
Firewall & VPN Management (Firepower, Palo Alto, IPSec, SSL)
Cybersecurity & STIG Compliance
Monitoring & Diagnostics
Disaster Recovery & Change Management
Network Documentation & Visio Design
Certification
- CCNP
- CCNA
- CompTIA Security +
- Lean Six Sigma Green Belt
Training
- Network System Administrator - New Horizons Computer Learning Centers
- Computer Networking & Security - New Horizons Computer Learning Centers
- Cisco Routing & Switching - New Horizons Computer Learning Centers
- Microsoft Operation System - New Horizons Computer Learning Centers
- Microsoft Server Administration - New Horizons Computer Learning Centers
- PMP Certification: 35+ PDU Formal PMP Training
- Telecommunication Architectures & Information Technologies
Timeline
Senior Network Engineer
Janus Research Group
09.2025 - Current
Senior Network Manager
Prime Technical INC.
08.2025 - 09.2025
Senior VoIP Engineer Advisor
General Dynamics Information Technology
02.2020 - 07.2025
Unified Communications Engineer
VAE INC.
12.2018 - 01.2020
Systems & Network Administration
Milvets Systems Technology, INC.
11.2015 - 11.2018
Technical Support
Imprimis, Inc.
04.2015 - 10.2015
Information Technology Specialist | System Administrator
United States Army
03.2015 - 03.2007
B.S. - Cloud Computing and Network Administration
Western Governance University