Meet Our Team

As a company we focus on people first, including recruiting the best employees. Each of our team members has a special passion for the work we do. We are all committed to public transit, and we bring this enthusiasm to each of our projects. Our commitment and drive leads to not only better project results, but also a better project experience for our clients.

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Craig Jaffe

Areas of Expertise: Enterprise System Selection, Implementation Oversight, Project Management

Professional Background: Craig is known for bringing an open perspective to solving business problems. He has been working in the services industry since 1991. He has provided services for companies in the construction, insurance, entertainment, manufacturing, technology, public transportation, education, financial services, and retail sectors and for the U.S. Departments of Defense and Energy. He has held positions at CH2M HILL, Booz Allen Hamilton, Corio (now a division of IBM), PriceWaterhouseCoopers, and Gumbiner Savett, CPA’s. His experience includes business process improvement, software selection, IT strategy, and software implementation.

Life beyond Four Nines: Craig lives in Marin, California, with his wife, two children, and dog. When he isn't working on projects with Curtis and the rest of the team, he spends his time in the mountains, on the soccer field, or at the beach (sometimes under the water).

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Curtis Pierce

Areas of Expertise: Enterprise System Selection, Implementation Oversight, Project Management

Professional Background: Curtis has almost thirty years of experience in technical project management and systems engineering. He has led the design and implementation of complex systems including data integration, advanced fare collection technologies, electronic commerce, and transaction processing. He's also an expert on fare collection practices and policies. Curtis started his enterprise software career in technical support at Symantec and rose to become Director of Worldwide Training. He then founded a company in the online payments space which he grew to over 70 employees before its acquisition by eBay. Since 2006 he has been an IT consultant for public transit.

Life beyond Four Nines: Curtis lives in Berkeley, California, with his family. When he isn’t working on projects with Craig and the rest of the team, he enjoys skiing and traveling with his family, and rowing in the Oakland Estuary.

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Kathleen Gilligan

Areas of Expertise: Enterprise System Selection, Implementation Oversight

Professional Background: Kathleen solves client problems with the creativity, humor and wisdom gleaned over many years of management. She has worked with technology companies in a variety of roles including sales, marketing, training, and executive management. These experiences have given her the ability to quickly understand a client’s culture, organization and politics, as well as the impact of technology on those elements. In her time with Four Nines, Kathleen has assisted transit agencies with business process improvement and stakeholder engagement, and with software selection and implementation, for enterprise asset management (EAM) and ERP systems. Prior to Four Nines, Kathleen held executive positions with AMR Research (now Gartner), Symantec, and consulted to ERP, security, and digital asset management clients.

Life beyond Four Nines: In her time off, Kathleen’s kitchen becomes a laboratory for culinary experiments.


Laura Wolfgram

Areas of Expertise: Fare Policy, Project Management, Strategy & Planning

Professional Background: Laura has been working with transportation clients over the last eight years to evaluate performance and business processes, develop strategic plans, prioritize needs, and provide implementation support. She has technical experience in fare policy, transit asset management, transit operations & management, performance monitoring and reviews, and transit and multimodal planning. Laura has her Master's degree in Urban Planning and Bachelor’s degrees in Civil Engineering and Mathematics.

Life beyond Four Nines: Laura is actively involved in Women’s Transportation Seminar (WTS). For work and leisure, Laura enjoys traveling, experiencing new cities, and meeting new people.

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Amy Martin

Areas of Expertise: Enterprise System Selection, Implementation Oversight, Strategy & Planning

Professional Background: Amy has been working with transit agencies for five years. She currently works on fare collection, fare policy, and transit technology projects with the Four Nines team. Previously, Amy supported the design, testing, and implementation of the Sacramento region's first smart card fare payment system as a transportation planner at SACOG. Amy holds a B.S. in Environmental Policy Analysis & Planning from UC Davis and a Master's of City Planning from UC Berkeley.

Life beyond Four Nines: Outside of work, Amy enjoys watching Jeopardy! with her dog Einstein and volunteering with HOBY, a leadership organization for high schoolers.

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Kirstie Hostetter

Areas of Expertise: Fare Policy, Implementation Oversight, Strategy & Planning

Professional Background: Kirstie has worked on fare policy, fare collection technology, UI/UX design, asset management, Title VI, and technology procurement projects with the Four Nines team. She has experience in policy research, fare policy modeling, and graphic system architecture depictions. With a BS in Environmental Economics & Management and a MS in Environmental Policy & Planning, Kirstie enjoys focusing on the intersections between mobility, sustainability, and equity in her work.

Life beyond Four Nines: In her free time, Kirstie enjoys visiting one of the many parks in Boston with her dog or curling up with a good book and a cup of coffee.


Katie Trotter

Areas of Expertise: Project Management

Professional Background: Katie has a great set of skills in project management, listening, analytics, and problem solving. She brings her clients over 15 years of experience managing projects and customer success. Katie's professional experience encompasses law, high tech, and leadership development. She recently worked in sales operations and order fulfillment for IBM/BIGFIX, and for Four Nines she is contributing her expertise to product implementations at Castlight Health. She has worked with teams to deliver products, as well as to ensure customer satisfaction and quality control of contracts.

Life beyond Four Nines: Katie lives in the Bay Area. In addition to her work Katie enjoys spending time as a Girl Scout leader and volunteering at her children's school.