Principal SBA Engineer

TN United Kingdom; Stevenage; Remote; GBP 60,000 - 100,000; Full time

Job description

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:
  • Develop 3GPP-compliant microservices (AMF, SMF, PCF, NRF) aligned with TS 23.501/29.500 standards.
  • Build RESTful APIs for inter-NF communication (OpenAPI compliance).
• Cloud-Native Deployment:
  • Containerize services using Docker/Kubernetes for public/private 5G clouds (AWS, Azure, telco clouds).
• Performance Optimization:
  • Ensure low-latency, high-throughput performance for critical network functions.
• DevOps & Automation:
  • Integrate with CI/CD pipelines (GitLab/Jenkins) for seamless deployments.
• Testing & Compliance:
  • Write unit/integration tests and debug in simulated/live environments.
  • 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.