Lead Solutionns Architect - Open vRAN

DELFERS BUSINESS SOLUTIONS PTE. LTD.; Singapore; On-site; SGD 120,000 - 150,000; Full time

Job summary

A leading telecommunications firm in Singapore seeks a senior professional with extensive experience in RAN architecture and strong O-RAN knowledge. The ideal candidate will have a deep understanding of 4G/5G standards and hands-on troubleshooting capabilities. Exceptional communication skills are required for client-facing interactions. Candidates should possess at least 10 years in the industry, with 5 years in a technical leadership role.

Qualifications

• 10-15+ years of experience in telecommunications, with at least 5 years in senior RAN architecture or leadership.
• Deep knowledge of 4G/5G RAN architecture and relevant standards.
• Proven O-RAN expertise, specifically with 7.2x fronthaul split.

Skills

RAN architecture expertise

4G/5G standards knowledge

Hands-on troubleshooting

Client-facing communication

Tools

Protocol analyzers (Wireshark)

Job description

Qualifications

• Experience:10-15+ years in the telecommunications industry, with at least 5 years in a senior RAN architecture or technical leadership role.
• RAN Expertise:Deep, authoritative knowledge of 4G/5G RAN architecture, 3GPP standards, call flows, and key procedures.
• O-RAN Specialization (Must-Have):Proven experience with the O-RAN Alliance architecture, specifically the 7.2x fronthaul split, and a strong understanding of CU/DU functions, F1/E1/A1/E2 interfaces, and the role of the SMO and RIC.
• Hands-on Troubleshooting:Demonstrable experience using protocol analyzers (Wireshark, etc.), log analysis tools, and performance monitoring systems to solve complex RAN problems.
• Client-Facing Gravitas:Exceptional communication and presentation skills. Ability to remain calm, articulate, and credible in high-pressure client situations.

Nice to Have

• Direct experience with competitor vRAN solutions (Mavenir, Rakuten/Altiostar, Samsung), scripting skills (Python), and familiarity with Telco Cloud platforms (Kubernetes, OpenStack).