Senior Network / Security Engineer (Fortinet / Cisco)

Vaco; Irving (TX); Hybrid; USD 135,000 - 165,000; Full time

Job summary

Vaco is seeking a Senior Network Engineer (Fortinet / Cisco) for a Direct-Hire role in Irving, TX. The position focuses on integrating acquired networks into a golden configuration, managing large-scale enterprise infrastructure, and leading network projects with cross-functional teams.

You will design, implement, and troubleshoot LAN/WAN, data center, and security networks, while mentoring engineers and driving continuous improvements across HA, performance, and security.

Qualifications

• 9+ years in enterprise data center networking with Cisco and Fortinet.
• Hands-on experience with Cisco Nexus 7K/9K, FortiGate, FortiManager, FortiAnalyzer.
• Expertise in BGP, OSPF, EIGRP, and routing redesign.
• M&A network integration and migration planning.
• Ability to design, deploy, and troubleshoot LAN/WAN and data center networks.

Responsibilities

• Lead and execute large-scale migration and standardization of networks.
• Design, implement, and maintain LAN/WAN, wireless, and data center networks.
• Mentor junior engineers and lead network projects.
• Develop comprehensive network documentation.
• Coordinate cross-functional resources for technology projects.

Skills

Fortinet

Cisco

Data Center

Routing / Switching

BGP / OSPF / EIGRP

Network Architecture

M&A Network Integration

Tools

FortiGate

FortiManager

FortiAnalyzer

Cisco Nexus 7K/9K

Catalyst Routers/Switches

Job description

Senior Network Engineer (Fortinet / Cisco)

DETAILS

Location: Irving, TX 75039 (hybrid 4days [M-TH] per week onsite)

Position Type: Direct-Hire

Hourly / Salary: to $150K (based on experience)

JOB SUMMARY

Vaco is currently seeking a Senior Network Engineer (Fortinet / Cisco) for a Direct-Hire opportunity that is located in Irving, TX 75039 (onsite 5-days per week). The Senior Network Engineer (Fortinet / Cisco) will primarily focus on supporting the integration of acquired companies into the established enterprise network configuration, including assessment, standardization, and migration activities across network and security environments. The Senior Network Engineer (Fortinet / Cisco) will manage and optimize a large-scale enterprise network and security infrastructure and will design, implement, maintain and troubleshoot LAN / WAN, wireless, and data center networks, while ensuring high availability, performance, and security. Additionally, the Senior Network Engineer (Fortinet / Cisco) will resolve escalated technical issues, mentor junior engineers, lead network projects, perform capacity planning, maintain comprehensive documentation, and drive continuous process and systems improvements.

• Enterprise Network / Security Operations - Managing Enterprise Network / Security Infrastructure Supporting Availability / Integrity / Stability / Performance Across Large-Scale Environments | LAN / WAN / Wireless Networks / Routing / Switching Consistency / Routers / Firewalls / Switches / IP-Based Communication Systems
• Network Engineering / Administration - Designing / Implementing / Maintaining Enterprise Network Infrastructure | Supporting Performance Monitoring / Bottleneck Resolution / Capacity Planning / Infrastructure Scalability / Global Connectivity / Operational Stability
• Technical Support / Operations - Resolving Escalated Network Issues | Managing Monitoring / Alerting / Incident Activities / Enterprise Ticketing Processes / Operational Issue Resolution / Incident Documentation | Providing Advanced Troubleshooting Support
• Security / Governance - Maintaining Security Controls (Firewalls / Access Controls / Intrusion Detection) | Supporting Change Management / Operational Governance / Process Improvements / Enterprise Standards Alignment
• Infrastructure Delivery / Cross-Functional Collaboration - Managing Infrastructure Software / Hardware Initiatives / Technical Analytics / Reporting / Documentation / Knowledge Base Contributions | Coordinating Cross-Functional Resources Supporting Technology Projects / Enterprise Implementations
• M&A Network Integration - Supporting Acquired Company Network Integration / Infrastructure Standardization / Migration Activities | Aligning Legacy Environments to Enterprise Standards
• Documentation / Continuous Improvement - Developing Technical Documentation (Diagrams / Procedures / Configurations) | Supporting Technology Modernization / Process Enhancements / Operational Visibility / Long-Term Infrastructure Scalability

About the Project

The core mission is to lead the migration and standardization of a large, acquired network into an established enterprise "golden configuration." This involves assessing the acquired environment, performing gap analysis, designing migration strategies, and executing large-scale cutovers across Cisco (Nexus 7k/9k / Catalyst) and Fortinet (FortiGate / SD-WAN / FortiManager) environments while maintaining HA and security. This role will require a combination of deep technical expertise in Cisco Routing / Switching and Fortinet Security with strong integration leadership to consolidate hundreds of sites into one standardized, high-performing network. This is a high-impact role blending hands-on engineering, project leadership, and cross-team coordination during a critical growth phase, with the ultimate goal of unifying 2 large networks into one best-in-class enterprise infrastructure.

JOB REQUIREMENTS

• Enterprise Network Engineering (9+ years) - Data Center Infrastructure (advanced) / Cisco / Fortinet
• Cisco Networking (9+ years | hands-on) - Design / Configuration / Troubleshooting | Cisco Nexus 7K/9K / Catalyst Routing/Switching Platforms
• Fortinet Security (5+ years) - Supporting FortiGate / FortiManager / FortiAnalyzer / Fortinet SD-WAN
• Routing / Network Architecture (deep expertise) - Across Routing Protocols (BGP / OSPF / EIGRP / Route Redistribution / Policy-Based Routing)
• M&A Network Integration - Network Integration / Consolidation / Standardization Initiatives Following Enterprise Mergers and Acquisitions
• Enterprise Network Transformation - Delivering Large-Scale Network Migrations into Standardized Enterprise "Golden Configuration" Models | Preserving Availability / Reducing Operational Disruption
• Network Assessment / Migration Strategy - Conducting Network Assessments / Gap Analysis / Migration Planning / Roadmap Development for Acquired Enterprise Environments

PREFERRED (not required)

• Fortinet Security Ecosystem (advanced) - FortiGate HA Clusters / Security Fabric / FortiSwitch / FortiAP / Integrated Security Components
• Network Access Control (NAC) - Implementing / Managing Cisco ISE for Enterprise Network Access Control / Policy Enforcement
• Enterprise Wireless Management - Supporting Ruckus Wireless Solutions for Large-Scale WiFi Infrastructure
• Network Monitoring / Observability - Utilizing SolarWinds for Network Monitoring / Performance Management / Reporting / Operational Visibility
• VPN / Secure Connectivity - Designing / Supporting Site-to-Site IPsec VPN / SSL VPN Solutions Enterprise-wide
• M&A Network Integration - Executing Large-Scale NW Integration / Post-Acquisition Consolidation Initiatives
• Network Standardization (Multi-Site) - Leading Multi-Site Network Standardization Across Distributed Enterprise Environments | Ensuring Consistency and Compliance

Determining compensation for this role (and others) at Vaco/Highspring depends upon a wide array of factors including but not limited to the individual's skill sets, experience and training, licensure and certifications, office location and other geographic considerations, as well as other business and organizational needs. With that said, as required by local law in geographies that require salary range disclosure, Vaco/Highspring notes the salary range for the role is noted in this job posting. The individual may also be eligible for discretionary bonuses, and can participate in medical, dental, and vision benefits as well as the company's 401(k) retirement plan. Additional disclaimer: Unless otherwise noted in the job description, the position Vaco/Highspring is filing for is occupied.

EEO Notice

Vaco by Highspring is an Equal Opportunity Employer and does not discriminate against any employee or applicant for employment because of race (including but not limited to traits historically associated with race such as hair texture and hair style), color, sex (includes pregnancy or related conditions), religion or creed, national origin, citizenship, age, disability, status as a veteran, union membership, ethnicity, gender, gender identity, gender expression, sexual orientation, marital status, political affiliation, or any other protected characteristics as required by federal, state or local law.

Vaco by Highspring and its parents, affiliates, and subsidiaries are committed to the full inclusion of all qualified individuals. As part of this commitment, Vaco by Highspring and its parents, affiliates, and subsidiaries will ensure that persons with disabilities are provided reasonable accommodations. If reasonable accommodation is needed to participate in the job application or interview process, to perform essential job functions, and/or to receive other benefits and privileges of employment, please contact [e-mail].

Vaco by Highspring also wants all applicants to know their rights that workplace discrimination is illegal.

Representation Notice

By submitting to this position, you agree that you will be giving Vaco by Highspring the exclusive right to present your as a candidate for the foregoing employment opportunity. You further agree that you have represented information about yourself accurately and have not affirmatively misrepresented your qualifications. You also agree to maintain as confidential, to the fullest extent permitted by law, any information you learn from Vaco by Highspring about the position and you will limit disclosure of information about the position only to the extent necessary to perform any obligations in furtherance of your application. In exchange, Vaco by Highspring agrees to exercise reasonable efforts to represent you through all solicitation, job screening and resume dispersal.

For residents of Ontario, Canada: Based on Highspring's discussions with its Client, Highspring's understanding is that this position for employment is a current vacancy (either through Highspring as a contractor or with the client directly).

Privacy Notice

Vaco by Highspring and its parents, affiliates, and subsidiaries ("we," "our," or "Vaco by Highspring") respects your privacy and is committed to providing transparent notice of our policies.

• California residents may access Vaco by Highspring HR Notice at Collection for California Applicants and Employees here.
• Virginia residents may access our state specific policies here.
• Residents of all other states may access our policies here.
• Canadian residents may access our policies in English here and in French here.
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Additionally, submissions to this position are subject to the use of AI to perform preliminary candidate screenings, focused on ensuring minimum job requirements noted in the position are satisfied. More details about Vaco by Highspring's use of AI can be found here (https://www.highspring.com/ai-use-notices/). Further assessment of candidates beyond this initial phase will be conducted by recruiters and hiring managers. Vaco by Highspring does not know and cannot opine on if its client's use of AI products in hiring.

Pay Transparency Notice

Determining compensation for this role (and others) at Vaco by Highspring depends upon a wide array of factors including but not limited to:

• the individual's skill sets, experience and training;
• licensure and certification requirements;
• office location and other geographic considerations;
• other business and organizational needs.

With that said, as required by local law, Vaco by Highspring believes that the following salary range referenced above reasonably estimates the base compensation for an individual hired into this position in geographies that require salary range disclosure. The individual may also be eligible for discretionary bonuses.