5G Core Network Development Engineer

FindErnest is looking for a talented MID_SENIOR 5G Core Network Development Engineer to join our dynamic Information Technology/IT team. In this FULL_TIME role, you will have the opportunity to work REMOTE, contributing to the development and optimization of cutting-edge 5G core network solutions. If you are passionate about network development and eager to work in a collaborative and innovative environment, we would love to have you on board!

Job: 5G Core Network Development engineer

Location : Stevenage, UK

Onsite/Remote : Remote work

Job Type: Permanent hiring

Mandatory: Please apply local and do not need Visa sponsorship only 

• 5G Core Network—designing and developing cloud-native network functions like AMF, SMF, PCF, NRF, and others in alignment with 3GPP standards (e.g., TS 23.501, 29.500 )
• Build and manage REST APIs for inter-NF (Network Function)
• Experience in container technologies like Docker and Kubernetes to deploy services in scalable, resilient environments—whether on public cloud (AWS, Azure) or private 5G telco clouds
• Integrate code into automated pipelines for continuous integration and deployment. Collaborate with DevOps teams to ensure smooth service rollouts and updates

• 6+ years of hands-on development experience with 5G SBA network functions (e.g., AMF, SMF, NRF, PCF, UDM)
• Strong programming skills in languages such as Go, Java, or C++
• Proficient in building microservices and working with REST/gRPC APIs
• Experience in Docker and Kubernetes in deploying services over public or private clouds
• Solid understanding of 3GPP specs (especially TS 23.501, 23.502, 29.500+ series)
• Experience with network function virtualization (NFV) and service mesh (e.g., Istio) will be plus

• Experience with network function virtualization (NFV) and service mesh (e.g., Istio).
• Exposure to service orchestration and management frameworks (ONAP, OSM).
• Contributions to open-source telecom projects are a plus.
• Knowledge of observability tools (Prometheus, Grafana, Jaeger, ELK stack).
• Linux scripting - Shell scripting, Python
• Knowledge and experience with Test Automation tools such as Jenkins, Robot or similar
• Has led a small team in the delivery of a specific deliverable.