The specialists behind the technology.

Rolling stock · Asset management · Reliability improvement · Systems engineering · Technical procurement · Commercial & contract management

CH Liew is an engineering and asset management specialist with almost 30 years across rolling-stock procurement, rail engineering, maintenance and asset management. As a registered professional mechanical and railway engineer, he brings an end-to-end view of how technical choices affect safety, reliability, cost and service performance. He has led reliability improvement, configuration management, technical procurement and organisational change, helping teams turn engineering evidence into disciplined investment and operational decisions. CH’s strength is practical judgement: connecting standards, contracts and frontline realities so asset owners can act with confidence.

Cyber risk assessment · Security assurance · Vulnerability assessment · Trustworthy AI · Machine learning · Network security

Matin Zamani is a cyber risk and assurance specialist who combines software engineering, machine learning and security practice. His work spans cyber risk assessment, vulnerability assessment, network security and trustworthy AI, with a focus on making complex technical risk understandable and actionable. Matin brings a research-informed perspective to assurance—testing how systems behave in practice, challenging assumptions and helping organisations strengthen controls without losing sight of operational needs. He supports clients with clear evidence, practical recommendations and a disciplined approach to emerging technology risk.