About us 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&D teams, and cross-functional groups to deliver future-proof telecom solutions. Tasks What you will do Provide architectural guidance on cloud-native network functions (CNF). Partner with development teams to ensure architectural compliance and best practices. Implement complex requirements in an easy and effective manner using C/Go/Python languages. Define performance, scalability, and resiliency targets for IMS components. Define end-to-end architecture for new IMS core components (e.g., P-CSCF, I-CSCF, S-CSCF, BGCF, HSS/UDM, TAS). Ensure alignment with 3GPP and ETSI standards for IMS and VoLTE/ VoNR solutions. Design scalable, cloud-native, microservices-based IMS components. Work with product management to translate business requirements into architectural blueprints. Prepare high-level and low-level design documents, architecture diagrams, and interface specifications. Requirements Our ideal new colleague Ex tensive experience designing IMS network elements and understanding of IMS call flows Strong knowledge of SIP, Diameter, RTP, and other telecom protocols. Experience with cloud-native architectures, containerization, and orchestration (Kubernetes). Strong understanding of VoLTE, VoWiFi, and 5G voice solutions ( VoNR ). Strong problem-solving, analytical, and documentation skills. Excellent communication skills and ability to work cross-functionally. Experience with Kamailio, FreeDiameter, or similar open-source telecom frameworks. Benefits A little more about our culture and why you should join Work-Life-Balance is a priority: Flexible working that suits you - we live and breathe a hybrid remote culture and don't mind where and when you work We are committed to building a diverse team that represents a variety of backgrounds, perspectives, and skills in a traditionally not very diverse industry We offer you the culture of a fast-growing start-up with the maturity of an enterprise company We are more interested in your experience and knowledge than formal degrees Entrepreneurial culture and flat hierarchies Mobility benefit, fitness benefit, language class benefit and wellness benefit (for full-time employees) Home office budget (for full-time employees) About us ng-voice is an equal opportunity employer. We believe demographic characteristics and diverse experiences that have nurtured unique viewpoints benefit our growth and performance and value each person and their different background as a whole. Hope we caught your attention; we look forward to getting to know you! DISCLAIMER Even if you do not meet 100% of the requirements, however, you think this role will be a good match for you, please send in your application. We would love to be in touch! Please be aware that we are currently not collaborating with agencies and any profile received will not be taken into consideration.