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