LocationOnsite - Sioux Falls, SDAbout the companySONIFI is a leading provider of technology solutions for the hospitality industry, delivering managed Wi‑Fi, networking, and in‑room entertainment platforms to hotels and resorts across North America. Our solutions support reliable, secure, and scalable guest and operational experiences across complex, distributed environments.About the roleThe Sustaining Engineer, Internet Solutions applies advanced enterprise networking expertise to support, maintain, and improve SONIFI's managed Wi‑Fi and networking platforms. This role independently diagnoses and resolves complex, non‑routine technical issues, leads advanced escalations, executes system upgrades, and determines corrective actions to ensure platform reliability, performance, and scalability. The Sustaining Engineer serves as a technical authority for issue resolution and service continuity.Why the role mattersThis role plays a key part in maintaining service stability and accelerating incident resolution across SONIFI's customer environments. As a senior escalation point and technical leader, the Sustaining Engineer helps reduce repeat issues, strengthen platform resilience, and ensure consistent, high‑quality service delivery.ResponsibilitiesServe as a subject matter expert on SONIFI networking solutions and support toolsIndependently diagnose and resolve complex enterprise networking issues with significant customer or service impactLead advanced internal and external escalations in partnership with Engineering, Product, Field Support, OEMs, and partnersPerform advanced diagnostics including log analysis and packet capture review across converged services such as Wi‑Fi, TV, Casting, and IoTPlan, execute, and validate system upgrades and maintenance activities, assessing risk and customer impactProvide on‑site technical leadership during critical incidents when requiredDevelop and maintain technical documentation, training materials, and knowledge‑sharing resourcesPartner cross‑functionally to align technical solutions with business objectives and customer requirementsMaintain accurate technical documentation in Salesforce and other internal systemsRequirementsBachelor's degree in Engineering, Computer Science, Information Systems, or equivalent experience5+ years of experience supporting enterprise networking environments, with a strong focus on wireless networks in hospitality or multi‑site enterprisesAdvanced knowledge of enterprise networking concepts including L2/L3 switching, WLAN architectures, wireless protocols, gateways, firewalls, TCP/IP, OSI, RADIUS, LDAP, and packet analysisSystem‑level experience with Windows and Linux servers, virtualization, scripting, and AWS preferredProven experience serving as a technical escalation point and exercising independent technical judgmentStrong written and verbal communication skills with the ability to document and explain complex conceptsStrong customer service skills and ability to remain composed under pressureHigh awareness of network security best practicesSelf‑starter, collaborative team player, and customer advocatePreferred certificationsCCNA, CCNP, CWNP, CompTIA Network+ or Security+OEM certifications such as Ruckus, Aruba, Fortinet, or NomadixTogether, we can build your future. SONIFI pays a competitive salary for this role based on a variety of factors including location, experience, education, specialty, and training. This position is also eligible for PTO, holidays, health, dental, vision, retirement plan, pet insurance, on‑demand pay, and a variety of other benefits.SONIFI and SONIFI Health value diversity and are proud to be Equal Opportunity Employers. We consider all qualified applicants for employment regardless of age, race, color, national origin, sex, religion, veteran status, disability, sexual orientation, gender identity, or any other protected status.If you require assistance in completing our online application due to a disability, please contact Human Resources at 605‑988‑1000.For more information about Equal Employment Opportunity, please visit Solutions participates in E‑Verify, a federal program to confirm authorization to work in the United States.#Technical#J-18808-Ljbffr