Sr. Network Engineer

PLEASE NOTE This is a hybrid role requiring in-office presence 3 days per week (Monday-Wednesday or Tuesday-Thursday) with 2 days remote. The candidate must be in or near Charlotte NC or have plans to relocate. This position includes participation in an on-call rotation to support critical network infrastructure. Additionally this position does not offer visa sponsorship. THE POSITION As a Senior Network Engineer you will lead the implementation maintenance optimization and architectural design of LendingTree's enterprise network infrastructure. You will serve as a subject matter expert in our Fortinet-based environment including firewalls switches access points FortiSASE and SD-WAN solutions. Collaborating with Infrastructure Engineering Security Cloud Operations and DevOps teams you will support network modernization automation and reliability initiatives. This role is ideal for a Senior engineer who is familiar with modern Infrastructure as Code (IaC) principles network automation and modern cloud networking architectures across AWS and Azure while embracing SRE fundamentals to ensure our network services are reliable scalable and observable. THE

RESPONSIBILITIES

Network Infrastructure Design implement and maintain enterprise network infrastructure including Fortinet firewalls (FortiGate) switches (FortiSwitch) and wireless access points (FortiAP) Manage and optimize FortiSASE (Secure Access Service Edge) for secure remote access and SD-WAN connectivity Administer FortiNAC (Network Access Control) for device visibility authentication and network segmentation Monitor network performance troubleshoot complex issues and ensure high availability of critical network services Implement and maintain network security policies VPNs and firewall rules aligned with security best practices Perform capacity planning and make recommendations for network infrastructure upgrades and expansions Cloud Networking Design and implement cloud networking solutions in AWS (VPC Transit Gateway Direct Connect Route 53 CloudFront etc.) Design and implement cloud networking solutions in Azure (VNet VPN Gateway ExpressRoute Azure Firewall Traffic Manager etc.) Build and maintain hybrid cloud connectivity between on-premises Fortinet infrastructure and cloud environments Support hybrid cloud connectivity between on-premises Fortinet infrastructure and cloud environments Assist with cloud-native security controls and network segmentation Observability Leverage SumoLogic and FortiAnalyzer for network observability log analysis and alerting Define and monitor Service Level Indicators (SLIs) and Service Level Objectives (SLOs) for network services Participate in incident response blameless postmortems and root cause analysis Identify and reduce toil through automation and process improvement Contribute to runbooks and operational documentation to improve reliability Automation Develop and maintain Infrastructure as Code (IaC) using Terraform for network infrastructure provisioning and configuration management Implement CI/CD pipelines for automated deployment of firewall rules network configurations and policy changes Create automation scripts using Python Ansible or other tools to streamline network operations and reduce manual tasks Leverage Fortinet APIs and SDKs for programmatic network management and orchestration Build self-service capabilities and automation workflows to improve operational efficiency Collaboration & Support Partner with InfoSec teams on implementing security controls and policies Collaborate with DevOps and Platform Engineering teams to support application infrastructure requirements Work with Infrastructure Engineering team on server storage and virtualization networking needs Create and maintain network documentation diagrams and runbooks Participate in on-call rotation to provide support for critical network infrastructure Respond to and help resolve network incidents outages and performance issues Perform planned network maintenance during change windows QUALIFICATIONS

Required Experience

5+ years of experience in network engineering or a related technical role 2+ years of hands-on experience with Fortinet products (FortiGate firewalls FortiSwitch or FortiAP) Hands-on experience with cloud networking in AWS and/or Azure environments Experience in enterprise-scale environments leading projects or mentoring teams. Mentor junior network engineers and provide technical guidance. Lead network architecture reviews and roadmap planning. Solid understanding of network protocols ( BGP OSPF VLAN STP LACP etc.) Experience with VPN technologies (IPSec SSL VPN SD-WAN Familiarity with Git and CICD Pipelines

Technical Skills

Fortinet Working knowledge of FortiOS FortiGate firewall configuration FortiSwitch FortiAP wireless and FortiSASE Cloud Networking Basic understanding of AWS VPC design Azure VNet architecture and hybrid connectivity Automation Scripting skills in Python Bash or PowerShell exposure to Terraform or Ansible Observability Hands-on experience with log management and monitoring tools (SumoLogic FortiAnalyzer CloudWatch or similar) Security In-depth knowledge of network security principles firewall policies and VPN configurations Troubleshooting Experience with packet analysis tools (Wireshark tcpdump) Professional Competencies Strong analytical and problem-solving skills Leadership skills ability to mentor and develop team members strategic thinking and experience influencing cross-functional stakeholders. Good communication skills with ability to document technical processes clearly Ability to work effectively in a hybrid team environment Eagerness to learn new technologies and grow technical expertise Strong documentation skills and attention to detail Ability to work collaboratively and ask questions when needed

NICE TO HAVE

Certifications Fortinet NSE certifications NSE Cloud certifications AWS Advanced Networking Specialty or Azure Network Engineer Associate. Networking certifications CCNA CCNP or equivalent Additional Experience Hands-on experience with FortiManager and FortiAnalyzer for centralized management and analytics Familiarity with containerized networking (Kubernetes Docker) Strong grasp of SRE practices SLIs/SLOs and incident management Hands-on experience network observability platforms (SumoLogic Datadog Splunk) Knowledge of DevOps practices and agile methodologies Experience in a SOX -compliant or regulated environment Strong understanding of SD-WAN optimization and application-aware routing

EDUCATION

Bachelor's or Master's degree in Computer Science Information Technology Network Engineering or related field (not required but nice to have) Equivalent combination of education training and experience will be considered COMPENSATION The base pay for this position is $110000-140000 however base pay offered may vary depending on internal factors job-related knowledge and candidate experience. INCENTIVE COMPENSATION Eligible for annual performance bonus BENEFITS Medical dental and vision insurance and 401(k) matching OUR CULTURE We’re a collaborative entrepreneurial team that values curiosity creativity and getting things done together. Our teammates are some of the brightest most driven people you’ll meet — and we celebrate innovation inclusion and ownership. At LendingTree you’ll find an inclusive culture where diverse perspectives make us stronger. We believe in working hard and supporting one another — with the flexibility and trust that help you thrive both personally and professionally. We’re proud to offer generous benefits wellness programs and time-off policies designed to help you recharge stay healthy and bring your best self to work every day. And yes — we still have fun doing it (our “GSD – Get Stuff Done” award is a fan favorite!) Come grow with us make an impact and be part of a company that truly cares about its people and its community. LendingTree is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees. We do not discriminate based on race color religion (or creed) gender gender expression age national origin disability marital status sexual orientation or military status. CCPA Disclosure