Description We are on the lookout for a VoIP Engineer to join our client's team, based in Scottsdale, Arizona. This role is pivotal within our Communications sector, where the focus will be on designing, developing, configuring, and maintaining VoIP Class 5 systems, including the NetSapiens SNAPsolution suite and Insights Pro monitoring solution. Responsibilities + Designs, develops, configures and sustains engineering support of VoIP Class 5 systems including NetSapiens SNAPsolution suite, Insights Pro monitoring solution, APIs and approved third party applications. + Works closely with business partners, network engineering and VoIP vendors to design and support future VoIP services and provide strategic and architectural issue resolution within the network. + Develops standard configurations, procedures and guidelines for selecting, installing and deploying integrated solutions and platforms within the VoIP environment. + Develops detailed testing documentation and thoroughly tests proposed solutions in a lab environment. + Generates and executes test plans to ensure the correct implementation of Voice services. + Follows through with vendors for timely resolution of issues; verifies fixes delivered by vendors. + Provides Tier 3 support as needed toward the analysis and resolution of escalating troubles/issues from Technical Support personnel. + Plans, documents, tests, and implements disaster recovery models at all levels of the telephony network. + Keeps abreast of industry and technology trends, available products and services in support of IP Telephony and custom applications. + Coaches and provides technical guidance to Technical Support staff as needed. Requirements + Technical Knowledge – Expert understanding of SIP (Session Initiation Protocol) and related protocols. VOIP Telephony, TCP/IP, firewalls, routers, Session Border Controllers, Traffic Engineering, testing methods, Central Office protection practices. Experience in Digital Switching Technology, microwave and fiber-optic systems, provisioning, and DS-1 and DS-3 a plus but not required. + Customer Service – able to personally provide high level of interactive service to targeted customer base/market, building relationships and acting as internal company advocate. + Team Orientation & Interpersonal – highly motivated, passionate and creative team-player with ability to develop and maintain collaborative relationships with all levels within and external to the organization. + Communication – able to effectively and persuasively express self, using language and grammar in a professional manner. + Organization & Time Management – able to work independently with minimal supervision, planning, scheduling and organizing professional schedule to complete actions within established deadlines, handling multiple priorities with strong attention to detail. + Project Management – able to prepare a plan that achieves stated objectives, establish and meet project deadlines, modify plan to reflect changing priorities and successfully complete project. + Analytical Problem-Solving & Decision Making – able to research, analyze, identify viable options, draw sound conclusions, present findings and make thoughtful recommendations considering overall risk and short-term and long-term impact. + Adaptability to Change – able to be flexible and supportive, react swiftly to and able to positively and proactively assimilate change in rapid growth environment. + Systems & Software – proficient knowledge of Microsoft Office software applications. Technology Doesn't Change the World, People Do.® Robert Half is the world’s first and largest specialized talent solutions firm that connects highly qualified job seekers to opportunities at great companies. We offer contract, temporary and permanent placement solutions for finance and accounting, technology, marketing and creative, legal, and administrative and customer support roles. Robert Half works to put you in the best position to succeed. We provide access to top jobs, competitive compensation and benefits, and free online training. Stay on top of every opportunity - whenever you choose - even on the go. Download the Robert Half app (https://www.roberthalf.com/us/en/mobile-app) and get 1-tap apply, notifications of AI-matched jobs, and much more. All applicants applying for U.S. job openings must be legally authorized to work in the United States. Benefits are available to contract/temporary professionals, including medical, vision, dental, and life and disability insurance. Hired contract/temporary professionals are also eligible to enroll in our company 401(k) plan. Visit roberthalf.gobenefits.net for more information. © 2025 Robert Half. An Equal Opportunity Employer. M/F/Disability/Veterans. By clicking “Apply Now,” you’re agreeing to Robert Half’s Terms of Use (https://www.roberthalf.com/us/en/terms) .