Meet Our Team

Our team has been successful designing and developing real-world software applications for:

  • US Army, Navy, Air Force
  • US Department of Transportation
  • American Medical Response (AMR)
  • German Air Force
  • US National Science Foundation (NSF)
  • US Dept of Education, University of California

In these markets:

  • Flight and Training Logistics
  • Emergency Deployment and Staffing
  • Hospital Staffing
  • Training Logistics
  • Mapping and Routing, and many more


  • Extensive fleet management technology experience
  • Ride-Sharing
  • Scheduling, Logistics and Re-deployment
  • Heuristic solutions
  • Geo-Optimization
  • AI (Artificial Intelligence)
  • Machine Learning
  • Network Optimization
  • Block chain

 Strategic Partnering:

  • Mapping, Geo-coding,
  • Complex Multi-modal Algorithm Development
  • In-transit Experiences
  • Safe Mobile Transactions
  • State-of-the-art Cybersecurity
Joe Grimes
Joseph Grimes
CEO & Director

Joseph Grimes has served as the CEO and Director of Tribal Rides since 2016. He is an accomplished executive and serial entrepreneur with a 25 year track record of success who drives technology based business opportunities from conception through implementation. Experienced in developing high level go- to-market strategies, securing financing, building and executing multi-dimensional operation plans, and, directing and motivating dedicated, goal-oriented teams to function in a coordinated and systematic fashion and accomplish stated business objectives. He graduated from University of California, Santa Barbara with an advanced degree focusing on Operations Research and Logistics.

Dr. Sorensen is a Senior Software Manager with more than 20 years of experience in software development, GIS, transportation planning and policy, and operations research. He has performed numerous projects for Federal, state, regional, and local agencies that address transportation funding, urban mobility, alternative fuels, climate change adaptation, performance measures, and emergency response logistics. Dr. Sorensen’s current work focuses on developing software solutions to support improved transportation planning and operations. Prior to joining Cambridge Systematics, he served as Associate Director for RAND Corporation’s Transportation, Space, and Technology Program. Dr. Sorensen holds a BA in computer science from Dartmouth College, an MA in urban planning from University of California, Los Angeles, and a PhD in geography from University of California, Santa Barbara.

Dr. Paul Sorensen
Dr. Paul Sorensen
Sr. System Architect
Sanjay Prasad, Esq
Sanjay Prassad, Esq
Patent Attorney

Sanjay Prasad has extensive experience in all phases of intellectual property law, licensing and related business transactions. Sanjay works across the spectrum of IP, including advising senior management and boards on intellectual property strategy and risk mitigation, developing effective corporate IP programs, advising on IP rights in corporate transactions, filing for patent and trademark protection, advising on competitive threats and disputes, and IP licensing and monetization.  Sanjay draws from his experience as chief patent counsel at Oracle Corporation where he led growth and transformation of its patent program, as a licensing executive for numerous large patent portfolio holders around the world and as outside counsel advising some of the world’s best-known (established and high-growth) companies in IP matters.   Sanjay holds a JD from Syracuse University College of Law where he was an editor of the law review.  He also holds an MS in Computer Engineering and a BS in Electrical Engineering from Boston University.

Tim Page is an accomplished mobile application developer with multiple commercial releases under his belt for leading names in mobile gaming and enterprise applications. His team designed and released the first Star Wars mobile game, as just one noteworthy example. Experienced in leading teams of designers and programmers in commercial product launches, Page brings extensive knowledge of enterprise software system requirements and solutions, and is well versed in the attributes that contribute to a successful “consumer interface-centric” mobile application product. He is Owner Yam Yam Mobile (, Virgin Interactive – Senior Executive, Led the start-to-finish production of Sports and Action games, Managed team responsible for dozens of well- known games, Highly skilled DirectX, Python, Django, PostgreSQL, Amazon EC2 (cloud-based), and REST/JSON.

Timothy Paige
Timothy Paige
Sr. Software Developer
Steve Ritacco
Head of Development

Steve has over 25 years of experience in software development and operations, ranging from embedded control to complex end-user applications and consumer portals. He has worked at industry leaders including HP, Motorola and Adobe Systems, as well as start-ups such as GO Corp. and As CTO of the Sperry & Hutchinson Company, he worked on an innovative SAS, big data, retail application. Most recently as CTO of BlueNRGY/Draker his team revitalized another SAS application in the big data, Solar/IOT space and revamped the company’s hardware offering. Steve earned a BS in Computer Science at the University of Rhode Island.

Dr. Konstantinow is a Systems Engineer and Operations Research Analyst from Santa Barbara, California, with over 30 years’ experience in software and database engineering, systems design, and data analytics. Dr. Konstantinow currently serves as Chair of the IEEE Central Coast Section and is on the Board of the Science and Engineering Council of Santa Barbara. He is an active member of the IEEE, INFORMS, AMIA, and AAAS; and holds a BA in Mathematics from New College of the University of South Florida and a PhD in Biomedical Engineering and Computer Science from the University of North Carolina, Chapel Hill.

Dr. George Konstantinow
Dr. George Konstantinow
Sr. System Engineer
Peter Grimes
Peter Grimes
Sr. Marketing Consultant

Peter Grimes, CEO, Grimes and Associates, Inc., providing marketing and consultant services to small businesses in B-to-B environments, including print, digital and on-line business and consumer facing campaigns for market entry, consumer focus and research, and Corporate and product Branding. With offices in Colorado and California, Grimes and Associates, Inc., has specialized in the personal care, apparel, and consumer product industries.

Principal Consultant: Vision Mobility, 20+ years Automotive Veteran, 19 Years at Toyota, Wealth of Automotive Sales, Marketing, Operations and Planning Experience, BEcon – Finders University.

James Carter
James Carter
Visionary Consultant