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TSE Team

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Meet Some TSE Team Members

Our group of engineers, discipline experts and engineering support staff comprise an industry-leading transit systems team

Simon Kim

Simon is a veteran engineering industry executive with over twenty years of experience. Prior to TSE, he served in various senior executive roles, including a role as CEO, for global infrastructure consulting firms. Most recently, Kim was President & CEO of N.A. operations for the international consulting group COWI. Kim holds a master’s in Civil Engineering from UC, Berkeley.

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Mahvash Armand
Transit Systems Leader

Mahvash brings over 25 years of experience as a systems engineer. Founder of ACI, her specialty in the rail transit industry is having delivered complex projects from early planning to successful startup and commissioning. Mahvash has been consistently recognized for her ability to mentor talent, manage challenges and deliver seamless, integrated solutions for transit systems. 

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Mario Cabael TSE Engineer

Walt Stamirowski
Sr. Program Manager

Walter has over 40 years of relevant hands-on systems design and construction and program management experience on Class 1 railroads, heavy rail, light rail and DMU rail transit projects. An expert in QA/QC procedures, with experience on major West Coast systems Walt brings a breadth of experience, attention to detail, customer support and knowledge to every project.

Mario Cabael
Traction Power Engineer

Mario has over 45 years of transit engineering experience and 12 years of experience with TSE serving as Project Engineer, Lead Traction Power Engineer, and Field Support Engineer. He has participated on two of the three BART extensions projects: DPX and CSX.

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Ferda Evans
Sr. Engineer/Quality Manager

Ferda has 18 years of experience in transit systems integration for light rail, freight rail, automated people movers, bus systems and communication infrastructure. Ferda is an Electronics and Communications Engineer with a proven track record in Supervisory Control and Data Acquisition (SCADA), Dispatch, Public Announcements (PA) systems, traction electrification and signal system integrations.

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Joycelyn Williams
Business & Compliance Mgr

Joycelyn understands the importance of corporate compliance. Her extensive background in customer service, policies and procedures, litigation, and claims administration provides her with the skills to ensure compliance with existing regulations and Best Practices. She has an extensive background in office administration and coordination with over 25 years of experience in administrative support.

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Carl Buck
VP, Projects Delivery

Carl Buck has extensive management & leadership experience in the development and deployment of train/traffic control, SCADA, and PIS & security systems for mass transit agencies around the world, including in North America, China, and Australia. An innovator in his field, Carl has held extensive roles as Systems Integrator, Solution Director, and Program Manager.

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Brian Seamount
Sr. Project Manager

Brian brings over 30 years experience to TSE, with knowledge of the transit systems industry including alternative delivery methods (Design/Build, Bid/Build, CM/GC) and project implementation experience on rail transit systems – BART, Caltrain, Sacramento RT and SFMTA. He excels in efficiently managing engineering teams.

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Mike Kozlowski
Sr. Engineer/Systems

Mike has 30 years experience in wireless communications, systems architecture, integration, value and regulatory engineering, project and personnel management, and technical consulting. Recent projects include: San Francisco Municipal Transit Agency’s (SFMTA) legacy communications systems, within the MUNI Metro Central Subway, and CTA.

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Patrick Tran
Sr. Signal Engineer

Patrick has nearly 25 years of professional engineering experience in train control systems for heavy rail transit systems with specialization in design, equipment construction, computer hardware and software development, construction management, testing, commissioning, inspecting, and placing train control and complex signal systems into revenue service.


Brendan Doss
Sr. Project Manager

Brendan has nearly 40 years of experience in Project Management Engineering Design, Supervisory Control and Data Acquisition (SCADA) Systems, Software Applications Development, and Computer Networking, integrating multi-vendor technologies into automated systems.

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Russ Wood
Quality Manager

Russell has 17 years of experience working as Senior Quality Technical Specialist on various DART projects. He has conducted Quality audits for major light rail projects throughout their lifecycle from preliminary engineering to the as-built status. He reviews contractor and subcontractor quality work to verify that conclusions, processes, findings, and recommendations are adequately supported and documented. 

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Joy Morrison
Dir. of HR & Project Controls

Joy is responsible for all levels of quality assurance, project controls and governance practices. She has overall responsibility to determine and establish procedures and quality standards and monitor their compliance. She holds more than 20 years’ experience in planning, organizing, controlling and evaluating the activities and operations related to quality and project controls.

Kate Zong
Operations Manager

Kate holds over 10 years of experience in Engineering & Project Management. She combines her technical knowledge, international experience, creativity and safety in engineering design. Her project management skills help support complex infrastructure projects. She holds an MBA from U.C. Davis.

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Tri Le
Sr. Communication Engr

Tri is a certified transit system safety and security professional with a Professional Engineering license in CA. Tri has over 10 years of experience in systems design, systems integration, system integration testing and hazard analysis, as well as performance testing. He has prepared rail system design criteria, technical specifications, technical drawings, and plans for many transit projects.

Kenneth Baker
Sr. Director, Business Dev.

Kenneth brings nearly 30 years of  experience in marketing, communications and business development to every project. With an expertise in proposal development, account management and technical writing and review, he complements TSE's engineering team. He is a graduate of Columbia University (M.S.) and Colgate University (B.S.), majoring in Geoscience.

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Stephen Falk
Sr. Signal Engineer

Stephen has 25 years of professional engineering and management experience in train control and rail transit systems, specializing in design, hardware and software development, construction management, testing, commissioning, train control systems into revenue service.

Abhinav Durgapathi
Train Control Engineer

Abhinav has a background in CBTC Systems, Automatic Train Supervision, Communications and Station Operations. He has coordinated cross-functional projects involving signaling, communications and construction. He has worked on projects for SFMTA, BART and TTC.

David Coury TSE Enginner
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TSE Engineer Kevin Nishinaga
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Jessika Herrera
Sr. Quality Specialist

Jessika has over 20 years of industry experience.  Jessika is dependable and capable of performing multiple roles on A/E/C projects. Jessika is exceptionally organized, adhering to contract requirements and providing clients with the highest quality of service. 

Holly Abernethy
Safety Certification Coordinator

Abernethy has an array of experience in the transit industry and holds a Transit Safety and Security Program (TSSP) certificate in rail and bus, as well as an Associate of Science Degree in Engineering Fundamentals. Holly supports various projects and teaming efforts in the areas of systems design and safety and security certification

Kevin Nishinaga
Sr. Systems Engineer

Kevin has extensive engineering experience in automated public transportation: Train control software design specifications, field testing CBTC systems, and analyses for advanced transit corridor studies. Kevin is also an expert in vehicle control software and vehicle-based switching.

David Coury
Sr. Signal Engineer

David has over 40 years experience in transit engineering and management, specializing in signaling design and procurement through all phases, as well as comprehensive review of testing reports and results. His expertise includes CBTC design.

Vivek Veeraganti
Systems Engineer


Vivek has a diverse experience as a professional engineer with a specialization in traction power for rail transit applications. He has worked extensively on BART projects and has extensive engineering background in various mass transportation projects focusing on power supply and SCADA.

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