Zack Halloran

Vice President, Engineering

Zack Halloran is currently the Vice President of Engineering at Vizit. Prior to this, they were the Director of Engineering at Adhark from August 2017 to June 2020. Adhark is an R&D entity focused on developing novel ML and AI applications for consumer insights. From June 2015 to September 2019, Zack was the Technology Team Lead at The Addis Clinic. There, they directed development of and provided support for the mobile app and web applications used to provide remote medical consultations for clinics in Ethiopia & Kenya. Zack also led OpenMRS (JAVA) and Django Application development and directed the work of the engineering team. Between January 2014 and January 2017, Zack served as the Director of Crowdmap/Director of Platform Cloud at Ushahidi. There, they designed and implemented the cloud hosting architecture for Ushahidi deployments at ushahidi.com. Zack also designed and implemented the process for automated testing and Continuous Deployment of PHP & Angular apps using Codeship, Docker and Ansible. Additionally, Zack designed and implemented the distributed job queue for Ushahidi.com deployments using Celery/RabbitMQ. Zack also conducted an expansive test writing and refactor of Crowdmap performance and features to improve user experience. Zack was also the principal engineer/architect of the new Crowmdap.com client, from server side REST processing to the Ember client. At Ushahidi, Zack also mentored colleagues about the principals of application architecture, data architecture, and conceptual modeling.


Zack Halloran has a Master of Science in Information System from Questrom School of Business at Boston University and a Master of Business Administration - MBA from the same school.


They are on a team with Joe Annunziato - Vice President, Sales, Adam Colasanto - Director, Consumer Intelligence, and JR Howard - Chief Financial Officer. Zack Halloran reports to Jehan Hamedi, Founder & CEO. Brandon Capecci - Senior UX Engineer, George Sibble - Chief Software Architect, and Bryan Chance - Senior Python Engineer report to Zack Halloran.

Roles at Vizit

  • Vice President, Engineering

    Current role


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