OneMain Financial Jobs

Data Network Engineer L2/L3

Location: Menomonee Falls, WI (Onsite position)

Please note, this role is not able to offer visa transfer or sponsorship now or in the future*

Job Summary

Experienced IT Team Lead with 10–12+ years in managing retail store systems and data center network infrastructure, specializing in service delivery, operations management, and technical leadership.

Key Responsibilities

• L2/L3 incident, change, problem, and service request management

• Support and troubleshoot enterprise network infrastructure (routers, switches, firewalls, VPNs)

• Firewall & security operations including Cisco ASA, Firepower NGFW, Palo Alto

• Routing & switching (EIGRP, BGP, Nexus, Catalyst, ACI)

• Site-to-site IPsec VPN setup and firewall policy management

• Cloud networking support, VPC incidents, and migration assistance

• DNS management using Bluecat

• Coordinate between onshore and offshore teams and across infra/app teams

• Act as SME, provide architectural consulting, and drive technology transformation & automation

• Lead micro-projects, PoCs, upgrades, refreshes, QoS changes, and RFCs

• Handle escalations, RCA, risk & mitigation

• Support resource planning, skill development, training, documentation (SOWs, SOPs, KAs)

• Participate in Scrum calls and provide regular WSR/MSR/PMR reporting

Required / Preferred Skills

• Strong experience in retail network operations

• Hands-on cloud environment & project deployments

• Certifications in Cloud, SD-WAN, CCNP+, Security (preferred)

Must-Have Technology Portfolio

• Cisco ASA Firewalls

• Cisco Firepower NGFW

• Cisco Catalyst & Nexus Switching

• Cisco Routing & ACI

• Cisco ISE

• Cloud VPCs & incident handling

• Palo Alto Firewall

Applications will be accepted until 3/27/2026

The annual salary for this position is between $73,350– $115,000 depending on experience and other qualifications of the successful candidate.

This position is also eligible for Cognizant’s discretionary annual incentive program, based on performance and is subject to the terms of Cognizant’s applicable plans.

Benefits: Cognizant offers the following benefits for this position, subject to applicable eligibility requirements:

· Medical/Dental/Vision/Life Insurance

· Paid holidays plus Paid Time Off

· 401(k) plan and contribution

· Long-term/Short-term Disability

· Paid Parental Leave

· Employee Stock Purchase Plan

Disclaimer: The salary, other compensation, and benefits information is accurate as of the date of this posting. Cognizant reserves the right to modify this information at any time, subject to applicable law.

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Cognizant is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to sex, gender identity, sexual orientation, race, color, religion, national origin, disability, protected Veteran status, age, or any other characteristic protected by law.