The Opportunity
Location: Remote US/Travel as needed
Reports To: Director of Infrastructure & Network Security
Job Type: Full-time
Position Summary
Vesta Corporation is seeking a Senior Network Engineer to lead the design, implementation, and ongoing operations of our global enterprise network. This is a senior individual-contributor role that operates at the intersection of complex multi-site networking, hybrid cloud infrastructure, and PCI compliance. The ideal candidate brings 10+ years of hands-on enterprise networking experience, deep familiarity with both commercial and open-source tooling, and the ability to drive infrastructure modernization initiatives with limited oversight.
Key Responsibilities
- Design, implement, and maintain scalable, secure network infrastructure across data centers, remote sites, and cloud environments (AWS and Azure).
- Architect and operate routing and switching infrastructure including BGP, NAT, VLANs, Spanning Tree, IPsec VPNs, PBR, and HSRP.
- Manage and tune enterprise firewall platforms (Cisco, pfSense, Check Point) in alignment with PCI DSS segmentation and access control requirements.
- Administer and optimize F5 BIG-IP LTM/GTM for application delivery, load balancing, and traffic steering across production environments.
- Manage Cloudflare DNS, WAF, and network security policies for internet-facing properties.
- Maintain network security policy management via FireMon; contribute to access path analysis and rule lifecycle management.
- Evaluate, deploy, and operationalize free open-source software (FOSS) as replacements for commercial products where appropriate (e.g., network monitoring, IPAM, configuration backup).
- Manage Proxmox-based virtualization as it relates to network-adjacent workloads and VM/LXC networking.
- Coordinate with vendors and carriers to manage WAN circuits, resolve outages, and drive cost optimization.
- Maintain comprehensive documentation for network topology, configurations, and operational runbooks; support PCI DSS and SOC 1 Type 2 audit evidence collection.
- Participate in on-call rotation and be available for after-hours work including unscheduled incidents.
- Travel to domestic data center and office locations as needed to support deployments or incidents.
Technical Expertise & Core Competencies
Required
- 10+ years of hands-on enterprise networking experience in large-scale, multi-site environments.
- Expert-level Cisco routing and switching: IOS/NX-OS, BGP, OSPF, EIGRP, VLANs, STP.
- Enterprise firewall administration: Cisco ASA/FTD, pfSense, and Check Point — rule management, segmentation strategy, and change control.
- F5 BIG-IP LTM/GTM: virtual servers, pools, iRules, traffic policies, GTM topology records.
- Cloudflare: DNS management, WAF rulesets, and security policy administration.
- FireMon: policy analysis, rule review workflows, access path validation.
- Deep understanding of TCP/IP, DNS, DHCP, routing/switching protocols, and secure remote access.
- Experience operating in PCI DSS‑compliant environments including control implementation and audit evidence collection.
- Strong troubleshooting capabilities with the ability to resolve complex outages under time pressure.
Preferred / Nice to Have
- Proxmox VE: VM/LXC provisioning, cluster management, and software‑defined networking.
- Experience deploying FOSS tools to replace commercial networking or monitoring products (e.g., Oxidized, NetBox, or similar).
- Hybrid cloud networking: AWS Direct Connect, Azure ExpressRoute, site-to-site VPN, cloud-native security groups.
- Zero-trust / overlay VPN concepts and implementation (e.g., Tailscale or equivalent).
- Structured cabling standards, rack design, and power management in physical data center environments.
- Vendor management: circuit provisioning, carrier escalations, hardware lifecycle coordination.
Qualifications
- 10+ years of enterprise networking experience in complex, multi-site or global environments.
- Demonstrated ability to work independently and drive projects to completion without heavy oversight.
- Strong vendor management skills — able to coordinate service delivery and incident resolution with carriers, ISPs, and hardware vendors.
- Proven ability to document infrastructure for audits, incident response, and operational continuity.
- Willingness and ability to travel domestically as needed (estimated low frequency; valid driver’s license required).
- Available for on-call rotation and after-hours support windows.
Education & Certifications
Education
- Bachelor’s degree in Information Technology, Computer Science, or a related field, or equivalent professional experience.
Preferred Certifications
- AWS Certified Advanced Networking Specialty, AWS Solutions Architect, or equivalent.
- Microsoft Azure Network Engineer Associate or equivalent Azure networking certification.
- Cisco CCNP (or higher) — Enterprise, Data Center, or Security track.
- Check Point CCSE or equivalent firewall platform certification.
- CCIE (any track), F5 Certified BIG‑IP Administrator, or other advanced certifications are a strong differentiator.