Job Title: Principal SBA Engineer (5G Core Network Development) Location: Stevenage, UK (Fully Remote)
Job Type: Permanent
Job Summary: We are seeking Principal-level SBA Engineers to design and implement 5G Service-Based Architecture (SBA) components for core network development. This role focuses on building cloud-native, standards-compliant microservices (AMF, SMF, PCF, NRF) using cutting-edge technologies like Kubernetes, Docker, and CI/CD pipelines. Key Responsibilities:
* Design & Development:
o Develop 3GPP-compliant microservices (AMF, SMF, PCF, NRF) aligned with TS 23.501/29.500 standards.
o Build RESTful APIs for inter-NF communication (OpenAPI compliance).
* Cloud-Native Deployment:
o Containerize services using Docker/Kubernetes for public/private 5G clouds (AWS, Azure, telco clouds).
* Performance Optimization:
o Ensure low-latency, high-throughput performance for critical network functions.
* DevOps & Automation:
o Integrate with CI/CD pipelines (GitLab/Jenkins) for seamless deployments.
* Testing & Compliance:
o Write unit/integration tests and debug in simulated/live environments.
o Maintain 3GPP standards compliance and detailed documentation.
Required Skills & Experience: Core Technical Skills:
* 5G SBA Expertise: Hands-on experience with AMF, SMF, NRF, PCF or similar 5G core components.
* Programming: Proficiency in Go, Java, or C++.
* Cloud/Containerization: Docker, Kubernetes, Helm, and public clouds (AWS/Azure).
* Networking: Deep knowledge of HTTP/2, SCTP, Diameter, PFCP.
* CI/CD & Testing: GitLab, Jenkins, Robot Framework.
Qualifications:
* Bachelor's/Master's in Computer Science, Telecommunications, or related field.
* 4+ years in telecom software development (5G/4G core preferred).
Preferred Skills:
* NFV/service mesh (Istio, ONAP, OSM).
* Observability tools (Prometheus, Grafana, ELK).
* Linux scripting (Shell/Python).
* Contributions to open-source telecom projects.
Why Apply?
* Lead cutting-edge 5G SBA development for global telecom networks.
* Fully remote role with a focus on innovation and standards compliance.
* Opportunity to work with cloud-native technologies and agile methodologies.
Note:
* Candidates must be UK-based (no visa sponsorship).
* Emphasis on 3GPP standards and performance metrics for network validation.