Senior Principal Wireless Architect

Job title: Senior Principal Wireless Architect
Contract type: Permanent
Location: Singapore
Salary: $150 - 200 k
Start date: 26 Feb 2021
Job Reference: 51747
Contact details: Dawn Han
Contact email:
Contact-phone: +65 6224 6864
Job published: 24 days ago


  • Be a technical leader on in-depth RF, Wireless, and RAN topics, provide technical guidance for next generation products and solutions, working closely with related architecture, design, engineering and deployments teams.
  • Lead 3GPP RAN or O-RAN Alliance standards participation and contribution
  • Lead prototype and proof-of-concept development on forward-looking products and solutions internally or in partnership with lead customers
  • File patents and/or author publications on innovative RF, Wireless, and RAN topics
  • Analyze customer needs as it relates 5G NR and RAN solutions and then communicate product requirements and communicate them to the product management and engineering teams
  • Work closely with business units and solutions teams on in-depth study of  5G
  • NR Radio Access Network design, configuration, implementation and optimization 
  • Responsible for integration, validation and implementation of 5G NR RF and RAN functional, load, performance, optimization and assurance use case-based solutions. 
  • Develop and communicate use case scenarios for Non-Stand Alone (4G-5G) and Stand Alone (5G) including beamforming, RF test and measurements, RAN optimization and assurance.
  • Educate the business unit, customers and partners on VIAVI’s 5G RF and RAN solutions 
  • Present strategic thought-leadership to our customers and industry forums and standards bodies



  • 10+ years of relevant experience in RF and RAN telecommunications role, experience working in 5G RAN and RF system deployment and planning role with a network equipment manufacturer or 5G operator is a plus
  • MS degree in Electrical Engineering/Computer Science/Computer Engineering (Ph.D preferred) with major in RF, wireless, or networking or similar. 
  • Expertise in wireless technologies e.g. 5G, LTE/LTE-A, O-RAN, IoT a must
  • Experience in attending and contributing to wireless standards bodies, e.g. 3GPP RAN/SA, O-RAN Alliance, and filing patents related to such work
  • Experience with RF and RAN test, measurement, configuration, optimization, and performance tools, including; eNB, gNB, UE emulators, Drive test tools, Spectrum/signal analyzers, Signal sources, Network analyzers
  • RAN optimization tools and assurance tools (scanners, UE based logging, triggers, RRC traces, etc.)
  • Planning tools such as Atoll or Planet.
  • In depth knowledge of major vendors of 5G NR network solutions and how they are  configured and optimized – including Dynamic Spectrum Sharing (DSS), NSA, SA Radios, beam directivity and numbering schemes for coverage and user beams, excess UEs/scheduling issues, propagation modelling and fading issues, multipath, antenna alignment, PIM etc.
  • Understanding of mobility management including the configuration and optimization of timers and other mobility parameters for intra-beam, intra-cell, inter-cell, inter-carrier and inter-RAT options.

EA Personnel Registration Number: R1110794

EA Licence Number 90C3026

Dawn Han