GLOBE Data and Information System (DIS)

David Overoye

GLOBE DIS Manager

David Overoye has been supporting education and outreach websites for over 20 years, and has been part of the GLOBE family for over 10 years. Previous work includes USA.gov and NASA's Mars Rovers websites.

Cornell Lewis

Web Project Manager

Cornell has served as the Project Manager for the GLOBE program since 2012. Past experience includes managing and developing internal and external web sites for NASA's Jet Propulsion Laboratory (JPL).

John Schimmels

Technical Lead and Sr. Principal Developer

John has been working with the GLOBE DIS team for over 12 years, currently leading the Liferay Java applications development team and GLOBE's database system design and analysis. Prior to GLOBE, John brings an additional 18 years of experience relating to Software Development and Quality Assurance and Testing from working with NASA, California Institute of Technology, Jet Propulsion Laboratory, Raytheon, US Navy, and IBM.

Greg Hoffman

Data Analyst/Software Developer

Greg graduated from Creighton University in 2021. He has worked with GLOBE for roughly 3 years, previously working on the GIO team and currently on the DIS team. He primarily works in the GLOBE database to support with data analysis, data cleaning, and metrics reporting.

Bryan Littlefield

Senior Systems Administrator

Bryan Littlefield has been supporting NASA systems and education outreach websites for over 20 years and has been part of the GLOBE family for over 10 years. Previous work includes work supporting JPL, projects, USA.gov and NASA's Mars Rovers websites.

Donovan Theseira

Senior Software Engineer

Worked with the GLOBE Team since 2016, after graduating from Cal Poly Pomona, currently working as a lead for the Liferay Java team.

Bryan Castaneda

Software Engineer

Bryan has been supporting GLOBE DIS since 2017, implementing robust software developer platforms to enhance team agility, systems reliability, and security.

Natalie Bui

Software Engineer

Natalie is an Arizona State University graduate who has been supporting GLOBE since 2020.

Priscilla Moc

Software Engineer

Priscilla is a software developer specializing in front-end development for the GLOBE web application. She's been part of the GLOBE DIS team since 2021.

Jonas Choi

Senior Software Engineer

Joe Wieclawek

Technical Lead and Senior Mobile Application Developer

Joe is a software development lead with over 25 years of experience leading and developing web and mobile applications for NASA, NSF, and others. He's been supporting the GLOBE program since 2011.

Sean Graham

Senior Front End Developer, UI/UX and Accessibility

Sean has been working in interactive media since 1997. As a lead and developer, he has helped create user experiences for touch screen kiosks, CD, mobile and web on projects for JPL, NASA, DoD and many more. He has been part of the GLOBE team since 2017.

Daniel Balandran

Senior Application Developer

Daniel is a senior software developer with over 15 years experience developing web and mobile applications for NASA and DoD. He has been supporting the GLOBE program since 2011.

Ashwin Ravindran

Senior Application Developer

Ashwin is a Software Engineer with over 8 years of experience. He has worked on a variety of NASA projects and applications, and has been supporting the GLOBE program since 2016.

Adarsh Ravindran

Application Developer

Adarsh is part of the development team for the mobile applications. He has been part of the team since 2022.

Andrew Clifford

Application Developer

Andrew has been with the GLOBE team since January of 2024. He has 10 years of experience building custom applications with a specialty in Front End development. Andrew is currently focusing on new features and improvements to our Mobile App.

Harman Smith

Creative Director

Harman has been overseeing design for websites, apps, animations and print products for over 25 years — supporting GLOBE since 2011. Previously, he has art-directed projects for NASA and other government agencies.

Tessa Clougherty

Intern

Benny Chan

Software Developer

Elizabeth Johnson

Sr. Test Engineer

Liz has over 25 years experience as a web and mobile applications tester for NASA and GLOBE. She has been supporting the GLOBE program since 2011.

Ben Luker

Automated Test Engineer

Ben Luker is a software developer with over 5 years of experience developing and automating end to end tests for web and mobile applications for NASA and GLOBE.