We are seeking a highly hands-on Principal Engineer with deep expertise across RAN, transport, LTE/5G core, and carrier-grade infrastructure. This role requires end-to-end troubleshooting capabilities (OSI Layers 1–7), strong collaboration with on-site teams, and ownership of complex wireless network challenges. Experience in the following: + Deep hands-on experience with: + RAN, LTE Core, 5G Core + Carrier-grade networks + Routing & switching + OSI Layers 1–7'Strong packet analysis and lab experienceExperience working with major telecom vendors (e.g., Ericsson)Excellent communication, collaboration, and ownership mindset **If interested - please email Kim.Ladka@experis.com to schedule a conversation about the role.** ManpowerGroup is committed to providing equal employment opportunities in a professional, high quality work environment. It is the policy of ManpowerGroup and all of its subsidiaries to recruit, train, promote, transfer, pay and take all employment actions without regard to an employee's race, color, national origin, ancestry, sex, sexual orientation, gender identity, genetic information, religion, age, disability, protected veteran status, or any other basis protected by applicable law.