Abhi Bhan
Senior Managing Director
Abhi Bhan has an extensive background in matching customers with critical systems appropriate to their businesses. Bhan has deep technology solution experience in both domestic and international markets, spanning digital transformation, business process services, infrastructure and managed services, enterprise applications services, and big data and analytics.
Terri Talkington
Head of Infrastructure
As a senior technology leader, Terri Talkington provides strategic direction for PST’s infrastructure and engineering teams, ensuring that innovation, reliability, and growth remain core priorities. She works closely with product teams to embed security compliance, delivery excellence, and platform stability into every stage of the development lifecycle.
Chris Rivera
Head of Software Engineering
Chris Rivera brings extensive experience in solutions engineering and enterprise software delivery within highly regulated transportation environments. As Head of Software Engineering at PS Technology, Rivera leads multiple development teams responsible for mission-critical rail crew management, attendance, and compliance platforms used by Class I, commuter, and shortline railroads. With a strong focus on scalable architecture, cross-functional collaboration, and modern engineering practices, Rivera partners closely with customers and internal stakeholders to deliver reliable, high-impact systems that improve operational efficiency and safety across the rail industry.
Jeff Girbach
Head of Simulation and Training
Jeff Girbach brings more than a decade of experience in railroad safety technologies, specializing in training simulation and safety‑critical operational systems. His wide‑ranging technical and leadership background has driven the development of innovative solutions across the rail industry.