Job Description One of Insight Global's retail clients is embarking on a large-scale network modernization program spanning WAN, LAN, Wi-Fi, voice, and security across store, distribution centers, data centers, and corporate environments. As part of this effort, they are evaluating multiple strategic partners and technology solutions. We need a senior, hands-on network expert to serve as the technical back-stop – pressure-testing proposed designs, validating architectures, surfacing risks, and ensuring that the solutions we select are technically sound, scalable, and implementable at enterprise scale. We are a company committed to creating diverse and inclusive environments where people can bring their full, authentic selves to work every day. We are an equal opportunity/affirmative action employer that believes everyone matters. Qualified candidates will receive consideration for employment regardless of their race, color, ethnicity, religion, sex (including pregnancy), sexual orientation, gender identity and expression, marital status, national origin, ancestry, genetic factors, age, disability, protected veteran status, military or uniformed service member status, or any other status or characteristic protected by applicable laws, regulations, and ordinances. If you need assistance and/or a reasonable accommodation due to a disability during the application or recruiting process, please send a request to HR@insightglobal.com.To learn more about how we collect, keep, and process your private information, please review Insight Global's Workforce Privacy Policy: https://insightglobal.com/workforce-privacy-policy/. Skills and Requirements • 10+ years in network engineering/architecture with multiple large, multi-vendor transformations and MSP/outsourcing programs. • Proven RFP/RFI technical evaluation: can red-team designs, build scoring frameworks, and translate gaps into contractable requirements. • Hands-on depth in routing/switching, SD-WAN, campus/Wi-Fi, firewalls, and L4–7 services; knows where designs break in the real world. • Strong documentation chops: HLD/LLD, MOPs, runbooks, acceptance criteria. • Executive-savvy communicator who can challenge vendors and brief leadership crisply. • U.S.-based; able to travel for vendor presentations/workshops. • Retail, large multi-site, or high-scale branch experience. • Certifications: CCIE/CCNP, PCNSE, Fortinet NSE 4/7, ITIL; cloud networking (Azure/GCP) familiarity.