Our People
Stuart Ashby
Practice Head
Stuart leads our team delivering client projects, supporting our customers to achieve their ambitious mainframe modernisation goals. He has held various roles on the mainframe over the last 40 years, and has spent the last ten years focusing on mainframe-inclusive DevOps and improving the mainframer developer experience.
Gomathi Bose
PopUp Mainframe Tech Lead
Gomathi has extensive knowledge in mainframe application development. Her willingness to learn, acceptance of challenging environments and confidence in delivering results helps to provide the best solutions to clients.
Karthick Chandrasekaran
PopUp Mainframe Tech Lead
Karthick is Mainframe Tech Lead at PopUp. He has 15+ years’ mainframe experience including COBOL, DB2, JCL, VSAM, CICS, and mainframe DevOps and was instrumental in building PopUp in the early days.
Hear from Karthick in this video.
Bronwyn Davies
Head of Development
Bronwyn has more than 15 years’ experience in software delivery across many different roles, technologies and industries. She leads the dev team, driving modern ways of working and productivity as we innovate the PopUp.
Shirisha Dodla
PopUp Mainframe Engineer
Shirisha is a Mainframe Engineer, specialising in Linux, and a certified Delphix Masking and Virtualization Engineer. She considers herself a ‘forever student’, eager to learn more about mainframe and is a crucial member of our delivery team.
Hear from Shirisha in this video.
John Edwards
Mainframe Lead
John is a mainframe architect with extensive experience in application development, system admin, configuration analysis and testing across many Tier 1 financial organisations. His deep technical knowledge helps solve client’s most complex problems and advances the PopUp strategy.
Arun Mandapati
Linux Engineering Lead
Arun’s wide-ranging engineering experience includes cloud, containers, DevOps, networks, security, development and more. He is an OpenSource enthusiast and an active contributor in OpenSource developer communities. Arun’s vision helps shape and tune PopUp’s Linux layer.
Muthiah Maruthappan
PopUp Mainframe Tech Lead
Muthiah is a Mainframe Lead with extensive experience in application development, technical project management and mainframe DevOps. He is expert at integrating PopUp with other software including PopUp Virtualisation with Delphix.
Hear from Muthiah in this video.
Barath Mohan
PopUp Mainframe Engineer
Barath is a junior PopUp Mainframe Engineer and a keen learner of Linux. He is a certified Delphix Masking and Virtualization Engineer. He is a key member of our delivery team for our customer projects.
Hear from Barath in this video.
Stephen Morgan
PopUp Mainframe Tech Lead
Stephen is a PopUp Mainframe Tech Lead, with strong skills in IMS (DB & TP) systems and MQ. He also has experience in middleware, distributed systems (Unix), and cloud technologies. He is passionate about applying DevOps practices to modernize ways of working on the mainframe.
Gajalakshmi Sundararajan
Delivery Lead
Lakshmi brings a wealth of experience in project delivery and team building across a range of platforms and technologies, with special expertise in mainframe. Lakshmi plays a pivotal role in delivering projects and ensuring excellent client experience.
Gary Thornhill
Founder & Head of Commercial
Gary uses his strong leadership skills and technical mainframe experience to understand each client’s mainframe challenges and works closely with them to define how PopUp can address their delivery bottlenecks while bringing huge savings.
Derek Britton
Head of Marketing
Derek has over 3 decades’ experience in enterprise technology, over half of that in senior technology marketing leadership positions. Derek is a seasoned industry commentator, advisor, and writer.