At Hitss, innovation is our fuel, curiosity is our engine, and respect for the customer is our compass. If you are driven by a passion for creating disruptive technological solutions, if you constantly seek challenges that push the boundaries of what’s possible, and if you believe putting the customer first is the key to success, then you’re in the right place. We want people who stand out, think outside the box, and are willing to explore new frontiers. Here, every idea is valued, every question is encouraged, and every challenge is embraced as an opportunity for learning and growth. Join us and become part of a vibrant culture where innovation is fueled by relentless curiosity and where respect for the customer permeates all our actions. Here, you’ll have the freedom to explore your skills, collaborate with brilliant minds, and transform the future of technology. If you’re ready to join a company that believes talent is the key to success, submit your resume and join our team. We look forward to meeting you and jointly driving the next generation of technological solutions. **Come be a Hit!** **Responsibilities and Duties** * Configure and administer Session Border Controllers (SBCs) for Voice over IP (VoIP) integration; * Implement, support, and troubleshoot the Webex Calling platform; * Diagnose and resolve incidents related to the SIP protocol, ensuring interoperability and quality; * Interact with customers and vendors to provide technical leadership for requirements; * Support the customer service team, acting as the communication architecture subject-matter expert. **Requirements and Qualifications** **Required Qualifications** * Bachelor’s degree in Telecommunications, Electronics, Information Systems, Computer Science, Networking, or related fields; * Certifications: CCNA; CLWXCALL (Essentials of Webex Calling); * Advanced English proficiency; Solid experience in: * SBC configuration, administration, and troubleshooting; * SIP handling: headers, SDP, codecs, interoperability; * Security and QoS: TLS, authentication, attack prevention (DoS/fraud), media optimization; * Cloud integrations: SIP Trunks, Local Gateway, and Webex Calling. * **Desired Qualifications** * Experience with Cloud Contact Center (CCaaS) platforms, especially Webex; * Knowledge of omnichannel customer service solutions (voice, chat, email, social media); * Experience with collaboration tools (Webex Meetings, Webex Messaging); * CRM integrations (Salesforce, Dynamics, Zendesk); * Familiarity with AI and automation applied to customer service: virtual agents, intelligent routing; * Analytical skills for interpreting performance reports and metrics; * Platform administration via Control Hub (technical profile); * Knowledge of security and compliance (including LGPD). **Additional Information** Want to see all our open positions? Visit our page: Hitss – Join Our Team https://globalhitss.gupy.io/ **Important: All our job openings are open to professionals with disabilities, and we uphold gender and racial/ethnic equity.** HITSS BRASIL is a multinational company within the Claro Group, operating for over 30 years in the digital solutions and IT services market across 7 countries. Combining unparalleled experience and specialized expertise, our 5,000 employees are committed to making the new happen every day. We champion innovation with integrity and strive to develop inclusive, responsible, and sustainable solutions for our employees and customers. **Through our Diversity and Inclusion pillar, everyone has equal opportunities to build their career.** We do not discriminate based on gender, religion, race, sexual orientation, socioeconomic status, or disability. If you thrive on challenges, trends, agile and innovative processes, this is where you belong. Join us!