Senior Network Engineer

Overview

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How You’ll Make an Impact

As a Senior Network Engineer, you’ll play a meaningful role in crafting and supporting Epsilon’s global network infrastructure by designing, implementing, and fixing sophisticated solutions across multiple datacenters and cloud environments. Become part of a skilled network team. Use your knowledge in routing, switching, load balancing, and network security. Your work will directly impact the performance and reliability of our internal and edge Internet/peering infrastructure. You will work closely with vendors and internal collaborators to maintain high standards.

What You’ll Achieve

• Lead the design, implementation, and optimization of network services, tools, and infrastructure across on-premises and cloud environments.
• Engineer scalable, automated network solutions using Cisco, Palo Alto, F5, AWS, GCP, and Azure, with a focus on hybrid and multi-cloud deployments.
• Build and maintain infrastructure as code using DevOps tools like Puppet and Terraform, ensuring configuration consistency and preventing drift.
• Develop and manage Network DevOps and CI/CD pipelines to automate deployment, provisioning, and monitoring.
• Automate configuration and management tasks using scripting languages and tools.
• Collaborate with SRE and security teams to ensure secure, compliant, and up-to-date cloud infrastructure.
• Resolve complex network issues across LAN, WAN, Cloud, Internet, and routing protocols (BGP, OSPF), serving as a technical SME and blocking issue point.
• Monitor network performance, implement QoS, and design high-availability solutions with redundancy and failover mechanisms.
• Evaluate and deploy next-gen technologies, including cloud-managed networks, and drive adoption of standard methodologies.
• Collaborate with cross-functional teams to define technical requirements, project objectives, and offer strategic mentorship throughout the project lifecycle.
• Continuously assess existing systems, identify areas for improvement, and propose effective solutions.
• Drive standardization, documentation, and automation across all network and cloud platforms.
• Additional responsibilities as assigned.

Who You Are

• What you’ll bring with you:
• 10+ years of experience supporting high performance production environments.
• Deep expertise in WAN and routing topologies, datacenter switching architectures, firewall concepts, and traffic management technologies such as load balancing and ECMP.
• Demonstrable experience designing and operating secure hybrid multi-cloud networks (AWS, GCP, Azure), including cloud connectivity models and infrastructure as code.
• Strong programming skills in Python and experience with network automation frameworks.
• Proficient with Infrastructure as Code tools such as Terraform and Ansible to manage network configurations at scale.
• Advanced knowledge of networking protocols and technologies including Ethernet (10/40/100/400Gbps), OSPF, BGP, Spanning Tree variants, IPSec, DHCP, DNS, SNMP, LACP, IPv6, and TCP.
• Hands-on experience with enterprise networking platforms such as Cisco Catalyst and Nexus, Dell Force10, Arista, Citrix NetScaler, and F5 Big IP.
• Expertise in traditional and next-generation firewalls, intrusion prevention systems using Cisco and Palo Alto Networks solutions.
• Proficiency with network monitoring and management tools such as SolarWinds NPM/NCM, ExtraHop, AlgoSec, and NetBrain.
• Experience developing cloud networking infrastructure including DNS, CDNs, load balancers, VPCs, subnets, and security groups.
• Effective written and verbal communication and the ability to detail and share procedures for addressing issues effectively.
• Solid understanding of security frameworks and regulations (e.g., ISO 27001, NIST, PCI DSS).
• Self-starter with the initiative to work independently and drive tasks to completion with minimal supervision.
• Experience in resolving issues across network, OS, and application layers.
• Proven track record of leading incident response and root cause analysis across complex, distributed systems.
• Familiarity with observability platforms, dashboard creation, and actionable alerting.
• Ability to mentor junior team members and lead technical discussions.
• Certifications from major cloud platforms, Cisco, and Palo Alto
• Participate in after-hours on-call rotation as needed.
• Why you might stand out from other talent:
• Experience designing, implementing, maintaining, secure on-premise and cloud network environments.
• Experience driving automation adoption across network and cloud environments.
• Experience working in multi-product organizations.
• Experience collaborating effectively with technology, security, and business partners on multi-functional projects.
• Implemented innovative changes to improve operational efficiency through process optimization, automation, and standard methodology adoption.
• Demonstrable knowledge of modern technologies, including AI and machine learning, to enhance IT operations and client engagement.

Click here to view how Epsilon transforms marketing with 1 View, 1 Vision, 1 Voice.

Additional Information

When You Join Us, We’ll Create Something EPIC Together

Epsilon is a global data, technology and services company that powers the marketing and advertising ecosystem. For decades, we’ve provided marketers from the world’s leading brands the data, technology and services they need to engage consumers with 1 View, 1 Vision and 1 Voice. 1 View of their universe of potential buyers. 1 Vision for engaging each individual. And 1 Voice to harmonize engagement across paid, owned and earned channels.

Epsilon’s comprehensive portfolio of capabilities across our suite of digital media, messaging and loyalty solutions bridge the divide between marketing and advertising technology. We process 400+ billion consumer actions each day using advanced AI and hold many patents of proprietary technology, including real-time modeling languages and consumer privacy advancements. Thanks to the work of every employee, Epsilon has been consistently recognized as industry-leading by Forrester, Adweek and the MRC. Epsilon is a global company with more than 9,000 employees around the world.

Epsilon has a core set of 5 values that define our culture and guide us to create value for our clients, our people and consumers. We are seeking candidates that align with our company values, demonstrate them and make them meaningful in their day-to-day work:

• Act with integrity. We are transparent and have the courage to do the right thing.
• Work together to win together. We believe collaboration is the catalyst that unlocks our full potential.
• Innovate with purpose. We shape the market with big ideas that drive big outcomes.
• Respect all voices. We embrace differences and foster a culture of connection and belonging.
• Empower with accountability. We trust each other to own and deliver on common goals.

Because You Matter

As an Epsilon employee, you deserve perks and benefits that put you, your family and your finances first. Our benefits encompass a wide range of offerings, including but not limited to the following:

• Time to Recharge: Flexible time off (FTO), 15 paid holidays
• Time to Recover: Paid sick time
• Family Well-Being: Parental/new child leave, childcare & elder care assistance, adoption assistance
• Extra Perks: Comprehensive health coverage, 401(k), tuition assistance, commuter benefits, professional development, employee recognition, charitable donation matching, health coaching and counseling

Epsilon benefits are subject to eligibility requirements and other terms.

Epsilon is an Equal Opportunity Employer. Epsilon’s policy is not to discriminate against any applicant or employee based on actual or perceived race, age, sex or gender (including pregnancy), marital status, national origin, ancestry, citizenship status, mental or physical disability, religion, creed, color, sexual orientation, gender identity or expression (including transgender status), veteran status, genetic information, or any other characteristic protected by applicable federal, state or local law. Epsilon also prohibits harassment of applicants and employees based on any of these protected categories. Epsilon will provide accommodations to applicants needing accommodations to complete the application process. Please reach out to LeaveofAbsence@epsilon.com to request an accommodation.

For San Francisco Bay and Los Angeles Areas: Epsilon will consider for employment qualified applicants with criminal histories in a manner consistent with the City of Los Angeles’ Fair Chance Initiative for Hiring Ordinance and San Francisco Police Code Sections 4901-4919, commonly referred to as the San Francisco Fair Chance Ordinance. Applicants with criminal histories are welcome to apply.

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