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Justin Marsh

Director, Advisory Technical Consulting

As Director of Advisory Technical Consulting, Justin has a decade of experience specializing in process improvement, automation, and application management. A leader in client management, operation support, and application support, Justin has developed and refined his expertise through years of practice. He offers a unique and global view of process and is a proven solutionist, driven by efficiency and a penchant for change. Justin’s approach is centered on a thorough understanding of the client’s requirements, which he seeks to address from all vantages to reduce long-term risk and cost.

Prior to Lighthouse, Justin was an eDiscovery Director at H5, where he was responsible for the architecture, installation, administration, stability, scalability, and client consulting for all hosted applications. In this role, Justin partnered closely with information governance and security teams to ensure that the company’s implementation and use of various technologies satisfied legal and regulatory requirements as well as applicable industry standards, including ITAR, PCI, HITRUST, and ISO 27001.

In addition, Justin also launched a development team responsible for increasing reliability, reusability, and efficiencies through automation; in doing so, he maintained close relations with H5’s technical and client groups to identify challenges both inside and outside the hosted applications that would benefit from automation efficiencies. Notably, Justin was one of four founding eDiscovery team members at H5, responsible for creating a support and development team and leading three technical teams during his tenure.

Outside of the office Justin is an ultra-runner and has completed several ultra-marathons ranging from 30 kilometers to 100 kilometers, the longest of which required almost thirteen hours of running. His affinity for running and the outdoors has taken him to infinite destinations, the most frequent of which is Mt. Diablo, California. He currently lives in Concord, California, with his wife, young daughter, dog, and cat.

Technical Expertise:

Relativity, Nuix, Elasticsearch, Data Lakes, SQL, Python, Ruby, C#, VB, .NET, JIRA, Confluence


  • BS in Applied Mathematics – San Francisco State University