Committed to building the next generation of 100% software-based mobile networks, ng-voice is creating innovative mobile infrastructure solutions and making them accessible for operators and enterprises that want to deploy future-proof networks.  We’re hiring a talented IMS Software Architect (m/f/d) to lead the design and evolution of our IMS (IP Multimedia Subsystem) solution. As an IMS Software Architect (m/f/d), you will define and drive the architecture of next-generation IMS components, ensuring scalability, reliability, and alignment with 3GPP standards. You will collaborate closely with product, R&amp;D teams, and cross-functional groups to deliver future-proof telecom solutions.What you will do    <ul><li>Provide architectural guidance on cloud-native network functions (CNF).</li><li>Partner with development teams to ensure architectural compliance and best practices.</li><li>Implement complex requirements in an easy and effective manner using C/Go/Python languages.</li><li>Define performance, scalability, and resiliency targets for IMS components.</li><li>Define end-to-end architecture for new IMS core components (e.g., P-CSCF, I-CSCF, S-CSCF, BGCF, HSS/UDM, TAS).</li><li>Ensure alignment with 3GPP and ETSI standards for IMS and VoLTE/VoNR solutions.</li><li>Design scalable, cloud-native, microservices-based IMS components.</li><li>Work with product management to translate business requirements into architectural blueprints.</li><li>Prepare high-level and low-level design documents, architecture diagrams, and interface specifications.</li></ul>Our ideal new colleague    <ul><li>Extensive experience designing IMS network elements and understanding of IMS call flows</li><li>Strong knowledge of SIP, Diameter, RTP, and other telecom protocols.</li><li>Experience with cloud-native architectures, containerization, and orchestration (Kubernetes).</li><li>Strong understanding of VoLTE, VoWiFi, and 5G voice solutions (VoNR).</li><li>Strong problem-solving, analytical, and documentation skills.</li><li>Excellent communication skills and ability to work cross-functionally.</li><li>Experience with Kamailio, FreeDiameter, or similar open-source telecom frameworks.</li></ul>A little more about our culture and why you should join <ul><li>Work-Life-Balance is a priority: Flexible working that suits you - we live and breathe a hybrid remote culture and dont mind where and when you work    </li><li>We are committed to building a diverse team that represents a variety of backgrounds, perspectives, and skills in a traditionally not very diverse industry   </li><li>We offer you the culture of a fast-growing start-up with the maturity of an enterprise company</li><li>We are more interested in your experience and knowledge than formal degrees </li><li>Entrepreneurial culture and flat hierarchies   </li><li>Mobility benefit, fitness benefit, language class benefit and wellness benefit (for full-time employees)</li><li>Home office budget (for full-time employees)</li></ul>