Integration Engineer (5G and IMS)

## Grow with us About this opportunity: We are looking for an Integration Engineer with hands-on experience in Communication Services, specifically 5G and IMS. In this delivery-focused role, you will be responsible for deployment, configuration, end-to-end integration and verification of Core Network and Cloud IMS solutions, to meet customer requirements and quality standards. Key Responsibilities * Plan, execute and document integration, configuration and verification activities for 5G Core and Cloud IMS solutions in customer projects * Perform end-to-end system integration across multiple network nodes and interfaces, ensuring interoperability and performance * Analyze and resolve integration, configuration and performance issues, working closely with design, support and customer teams * Contribute to deployment and migration plans, rollout strategies and cutover activities for new solutions and upgrades * Implement and maintain automation scripts, tools and procedures to improve integration efficiency and quality * Collaborate with project managers, solution architects and customer technical teams, providing technical input and status updates * Ensure solutions are integrated in line with product documentation, roadmaps, security and compliance guidelines * Produce and maintain technical documentation (integration guides, configuration baselines, test reports) * Share knowledge, best practices and lessons learned within the team and wider organization Required Skills and Experience * Bachelor’s degree in Engineering or Computer science * CS Core, UDM and IMS Portfolio Knowledge * Knowledge of virtualization and cloud platforms, including OpenStack and Kubernetes * Hands-on experience in integration, verification and troubleshooting of telecom network solutions, ideally in 4G/5G Core and IMS domains * Strong understanding of telecom signaling protocols and interfaces relevant to Core and IMS (such as SIP, Diameter, HTTP/2, MAP) * Understanding of LDAP directory services and databases * Understanding of IP networking and protocols (routing, switching, TCP/IP, DNS, firewalls, load balancers) * Strong hands-on experience integrating IMS and 5G Core nodes (CSCF, MTAS, SBC/BGF, MRF, AFG, NELS, etc.) in operator environments. * In-depth understanding of VoLTE/VoNR, IMS call flows, 4G–5G interworking, and related protocols (SIP, Diameter, HTTP/2, MAP etc.). * Ability to design and execute complex integration test campaigns and assess impacts on customer networks and services. * Proven capability to work in customer projects (Network Build, Integration & Optimization) with cost/time accountability, in multi-vendor environments * Additional programming skills are an advantage * Excellent written and spoken English skills. * 5–10 years of relevant experience in a similar role Personal Attributes * Excellent communication skills and ability to collaborate in diverse, international teams * Customer-focused mindset with strong sense of ownership and accountability * Curiosity and willingness to continuously learn new technologies and ways of working * Ability to work under pressure in dynamic project environments and manage multiple tasks * Strong analytical and problem-solving skills, with a structured and detail-oriented way of working * Team player who actively contributes to a positive, collaborative and inclusive working culture