Board of Directors and Elected Officers





Rick Hefner


Mark McKelvin


Phyllis Marbach


Lin Yi


Past President

Phyllis Marbach

Membership Director

Karen Grothe

Programs Director

Mark TenEyck

Communications Director

Neil Wigner

Appointed Officers and Volunteers




Chapter Awards Manager

Rick Hefner

Reflector Manager

Deborah Cannon

Newsletter Editor

Jorg Largent

Web Site Manager

Neil Wigner

Social Media Manager

Doris Gebelein

Technical Society Liaison

Shirley Tseng

Professional Networking Chair

Scott Birtalan

SF Valley Engineering Council

Stephen Guine

Student Division Ambassador

Scott Birtalan

Industrial Relations Manager



New Member Ambassador

Collette Kurtz

Volunteer Coordinator

Karen Miller

Board of Director Biographies

President - Phyllis Marbach (1-year term)

Phyllis Marbach is a Senior Software Engineer for Boeing Defense Space & Security (BDS). Phyllis has over 30 years’ experience in aerospace programs; including Satellites, chemical lasers, the International Space Station, and various propulsion systems. Currently she is working with Boeing Commercial Airline (BCA) projects applying Systems Engineering Best Practices and the Boeing Agile Scrum for Engineering.  Phyllis has been a Boeing Agile Coach for Unmanned Air Systems, Networked Radios, and research programs. Ms Marbach, a Certified Scrum Master, a Certified Scrum Product Owner and Scaled Agile Coach, holds an MS degree in Engineering from UCLA.   She has been a member of INCOSE for 4 years and is an author of 3 papers and numerous presentations on NCOIC in 2006 and more recently agile systems engineering presented to local engineering groups, international conferences and publications.

Phyllis has been active in the INCOSE-LA chapter presenting at the Mini-Conference in 2012, running a panel discussion at the Mini-conference in 2013, helping run the Huntington Beach Remote Site during 2014 and hosting the August 2014 networking event in Orange County.  She joined the INCOSE Agile Systems and System Engineering Working Group in January 2013.  Phyllis recently joined the board of directors for the Women in Science and Engineering (WISE) at California State University Northridge (CSUN) and is the current Membership Director for INCOSE-LA.   

Phyllis Marbach


Vice-President - Dr. Rick Hefner (1-year term)

Rick Hefner, PhD, specializes in systems development and maintenance; project management; Lean Six Sigma; process improvement, technology transfer; and risk management. His experience spans over 35 years. Dr. Hefner currently serves as Program Director for the Caltech Center for Technology and Management Education, where he is responsible for developing and delivering professional training in systems engineering and project management. 

Previously, Rick served as director of process management at Northrop Grumman Corporation, where he managed corporate process initiatives related to Lean Six Sigma and program management. Dr. Hefner has also worked with companies in the aerospace, defense, communications, electronics, and health sciences industries, including Applied Physics Laboratory, Ares Management, Boeing, DRS Technologies, Halliburton, Herbalife, Honeywell, Jet Propulsion Laboratory, John Deere, L-3, Maytag, Motorola, Pacific Bell, Raytheon, Schlumberger, Southern California Edison, St. Jude Medical, Toshiba, U.S. Navy, and Xerox.

He is credited with over 200 publications and presentations, and certified as a Lean Six Sigma Black Belt. He earned his PhD from the University of California, Los Angeles, in applied dynamic systems control. He received his MS and BS from Purdue University in interdisciplinary engineering.


Rick Hefner


Past President – Terry Rector (1 year term, not elected)

Terry Rector is currently serving as Vice-president of the Chapter and is leading the team creating the 2016 Regional Mini-Conference. Terry has over thirty years of experience in the aerospace industry, holding positions of increased responsibility as a systems engineer, Program/Project Manager, Space Systems Operator, and Intelligence Analysis. Terry retired from the United States Air Force and currently is a Senior Project Engineer at The Aerospace Corporation, El Segundo, California.

Terry serves as Aerospace’s Protected Tactical Modem and as the program test lead supporting the Space and Missile Systems Center’s MILSATCOM Protected Tactical Service program as well as supports Small Business Innovated Research efforts. In this role, Terry is supporting the research and development, requirements generation, integration and testing of MILSATCOM programs and projects, multiple contractors and technologies.

Prior to working for Aerospace, Terry was the Vice President of Government Relations for a high tech small business specializing in 3-D chip stacking, cognitive data processing, and tactical sensors for several different land, air and space platforms. With over five years’ experience in small business, Terry understands the value of successful leadership and management of short schedules, tight budgets, and highly complex technical systems delivered by highly diverse, geographically separated teams comprised of various engineering disciplines. Lastly, Terry served for more than twenty years in the United States Air Force in communications, space, and intelligence systems.

Terry also serves as vice-president of two homeowners association where he has responsible for executing decisions in response to the wellbeing of over 2000 home owners. Terry is an active member of the Air Force Association, the Armed Forces Communications and Electronics Association, and the Institute of Electrical and Electronics Engineers.

Terry joined INCOSE-LA in 2005 and has supported the chapter on several occasions. He is best suited for locating sponsors and exhibitors for the various activities that INCOSE-LA sponsors. He has served as the Sponsorship and Exhibitor Chair for the INCOSE-LA 2009 Mini-Conference, the Conference for Systems Engineering Research (CSER) 2011 and CSER 2014 Conference Co-Chair, and has been ask to Co-Chair CSER 2017. Lastly, he has served in numerous leadership positions planning other conferences such as the Responsive Space and the Small Satellite Conference.

Terry earned his education attending college via night and weekend classes, completing a Bachelor of Science Degree in Electrical Engineering from Southern Illinois University, a Master’s of Science Degree in Space Systems from the University of North Dakota, and a Master’s of Science Degree in Program Management from the prestigious Whitmore School of Business and Economics, The University of New Hampshire, where he earned his Project Management Professional certifications.



Secretary - Jeffrey Willis (1-year term, 2nd term)

Jeffrey Willis has been employed as an electronics engineer specializing in aircraft avionics for the Northrop Grumman Corporation in Palmdale, CA since 2007.  Prior to that, he worked as a principal engineer specializing in GPS aircraft integration for ARINC Engineering Services in El Segundo, CA, bringing his total time in the aerospace industry to 12 years.  Running in parallel with that time has been Jeffrey’s service in the defense industry, serving as an air operations center officer in the US Air Force Reserves (USAFR) at March Air Reserve Base near Riverside, CA for the past 13 years.    An air operations center is the senior agency providing command and control of all air and space assets in a military campaign or theater.  His service in the USAFR has taken him to air operation centers in South Korea, Japan, Germany, and the United States, where he has worked in both the planning and operations sections.  Jeffrey currently holds the rank of lieutenant colonel.

Before embarking on his careers in the aerospace industry and USAFR, Jeffrey served 13 years on active duty for the USAF as a B-52 and E-3 navigator, bringing his total Air Force time to 26 years.  He was based in northern California, Washington, Oklahoma, and Okinawa, Japan.   During that time, Jeffrey accrued over 3,300 flying hours, and flew over 50 combat support missions to enforce the no-fly zones over Northern and Southern Iraq.  B-52 strike missions in the Middle East and E-3 counter-drug missions over Colombia make for other highlights in his flying career. 

Jeffrey completed the Cal Tech certificate courses in Systems Engineering and Project Management.  He holds a BS in Electrical Engineering from USC and an MBA/marketing emphasis from Oklahoma City University.  Jeffrey is currently working on an MS in Systems Architecting and Engineering from USC as a student of Dr. Azad Madni.

When Jeffrey isn’t otherwise engaged in either of his two jobs or schoolwork, he enjoys traveling, photography, fitness activities, and watching NBA, NFL, and college football games.  



Treasurer - Lin Yi (1-year term)

Dr. Lin Yi is a member of technical staff in Frequency and Timing Advanced Instrumentation Development group of Jet Propulsion Laboratory, California Institute of Technology. He is a subsystem engineer, technical lead and physicist in JPL Frequency Standards Test Laboratory, supporting multiple NASA internal and external missions. His expertise lies in areas of atomic clocks and global navigation satellite systems, ultrafast and deep ultraviolet laser engineering, precision instrumentation and measurement, software engineering, frequency and timing metrology, atomic, molecular, optical and plasma physics. Dr.Yi has published more than 30 peer reviewed

Journal articles and conference papers: Dr. Yi held and holds memberships in IEEE (Senior), AIAA, INCOSE and ION. He serves as a reviewer for NSF, NASA, OSA, IEEE, AIP, IOP. Dr. Yi received his B.S. in Electronics Engineering (2003) and Ph.D. in Radio physics (2009) with honors both from Peking University, P. R. China. From 2009 to 2011, He was a CNRS postdoctoral fellow at Paris Observatory in France. In 2011, he was a visiting scientist at PhysikalischTechnische Bundesanstalt in Germany. From 20112013, he was a NASA Postdoctoral Fellow at Jet Propulsion Laboratory, U.S.A. From 2013, he was hired as a permanent staff by JPL/Caltech.



Director, Membership – Mark Teneyck (2nd term of 2-year term)

Mark TenEyck is an accomplished business executive with 30 years of experience in management, design, fabrication and building. He started his first business at the age of 19 in residential home building and design. He transitioned to an 18-year tenure with Dassault Systemes in management selling innovative engineering solutions. He also designs and buds custom modern warm furniture sold in high end retail stores, is on the Advisory Board at Cerritos College and teaches computer aided design (CATIA) at Roosevelt High School. TenEyck has championed innovative methods for reduction of cost, scrap and environmental impact in product development. He is distinguished by his passion for business, focus on collaborative team building and commitment to delivering results. His contagious enthusiasm instills him and his team members with extraordinary energy and dedication in an environment where creativity and innovation are encouraged. A dynamic public speaker, teacher and mentor, Mark is a sought after presenter at meetings, team building events and conferences. He transmits key concepts in business innovation supported by smart adoption of technology to enable business to continually improve their products and processes while reducing their overall costs. Mark is passionate about his work and enjoys encouraging others to experience the dynamic of design and fabrication. He donates his time teaching in Boyle Heights and mentoring First Robotics Teams.



 Director, Membership – Michael Do (2-year term)


 Director, Communications - Neil Wigner (2-year term)

Neil Wigner is currently a Manager of Electronics, Systems Engineering and Supplier Management designing Next Generation Fighter Aircraft at Northrop Grumman Corporation for 16+ years. Prior to that Neil held positions at Raytheon Missile Systems and Lockheed Martin designing complex systems for Ballistic Missile Defense and Satellite Communications, rounding out his 20+ years in the Defense Industry.

Neil got his BS in Aerospace Engineering from the University of Colorado and his Master's in Systems Architecture and Engineering from the University of Southern California.


Director, Systems Engineering Education – Tony Magorno (2nd year of 2-year term)

Tony Magorno is currently supporting the Regional Mini-Conference 2016 as the Technical Committee Chair and   working with a very strong team of INCOSE LA members to develop a strong conference.

Tony Magorno is currently a lead cybersecurity engineer working for the MITRE Corporation.  Tony has over 24 years of experience with Department of Defense Space Systems (offensive, defensive, and tracking systems), Intelligence, Infrared Systems, Optical Systems (telescopes and lasers), cybersecurity, cryptographic management and design, and command, control, communications and computers intelligence surveillance and reconnaissance systems.  He started his career as an Air Force enlisted member tracking missiles and satellites, performing intelligence analysis, leading command and control crews, developing and designing command and control systems, training crew members, performing operations evaluations, and managing a large systems engineering and architecting team for Space Superiority.  While on active duty, he achieves his A.A.S. in Space Systems Operations through the Community College of the Air Force and graduated Cum Laude from Southern Illinois University with a B.S. in Industrial Technology.  This spurred his interest in Systems Engineering.

After the Air Force, Tony started working for ARINC Engineering Services LLC as the lead systems security engineer for Air Force Satellite Control Network.  He developed vulnerability analysis of the network based completely on open source information, which resulted in better review of the systems security posture.  He also worked as the AFSCN Information Assurance Manager ensuring components maintained security approval from the accrediting authority.  He moved on to GPS and worked in support of the SAASM Mission Planning System.  He installed the prototype and support testing to ensure SMPS was mission ready.  He also developed the security guidance for the SMPS and implemented the guidance to ensure accreditation and operational use.

Tony then moved to MITRE as a Lead INFOSEC/Cybersecurity Engineer.  During his time at MITRE he has support the Launch Range, JSpOC Mission System, Protected Tactical Service, and GPS OCX.  His work includes researching cryptographic module development, key management, security architecture, security maintenance and logistics support, and Model Based System Engineering.  During his time at MITRE he has been able to achieve a Graduate Certificate and Masters in Systems Architecting and Engineering from the University of Southern California.  He hopes to eventually move on to a PhD in the field of systems engineering.




Director Ways and Means - Stephen Guine (2-year term)

Stephen Guine is a systems engineering manager for Northrop Grumman Aerospace in Palmdale, California. He has over seventeen years of experience implementing and managing systems engineering activities on multiple Northrop Grumman programs and projects as well as for other organizations including Kaiser Permanente, PacifiCare, Los Angeles County Department of Public Health, and the Metropolitan Water District of Southern California. He was also the 2015 INCOSE-LA President.

Stephen is also the founder of The Strategy Department — a strategy and systems engineering consulting firm focused on bringing strategic systems thinking and project execution to community-based nonprofit organizations and small businesses. In this capacity, Stephen has over twenty years of experience in business process and technology consulting, information architecture development, strategic planning, and end-user education and training. 

Stephen holds a Bachelor of Arts in Political Science from the University of California Santa Barbara, a Master of Public Policy from USC, and an M.B.A. from the Drucker School of Management,. In addition, Stephen has earned certificates in systems engineering and in Aerospace Project Management from Caltech, and a certificate in Digital Avionics from the University of California, Los Angeles. Stephen is a proud veteran of the United States Marine Corps.