Meet Our Team Leaders

Founded in 2004 and based in San Diego, California, PlanetTogether is comprised of a team of Operations Research and Software Engineers who thrive on creating innovative and practical scheduling, planning and analytics solutions to make manufacturers more successful. Here’s a peek into our personas:


Jim Cerra

Founder & CEO

Co-founder and CEO of PlanetTogether, long-time wrestler, and father of three girls – Jim thrives on family, innovation and productivity. Every day begins with a question: “How do I make this day better for my family, my clients, my employees, and my company?”

Jim has worked with some of the world’s leading manufacturers to improve their planning and scheduling systems and processes, such as: Johnson & Johnson, Sony, Corning, GPI, Procter and Gamble, New Belgium and Saint Gobain. Jim’s production scheduling software design leadership resulted in a next-generation Advanced Planning & Scheduling (APS) execution and education platform.

Prior to co-founding PlanetTogether, Jim was the APS Product Manager for Epicor Software Corporation and Senior APS Consultant at C-WAY Systems Inc, founded by Cornell University Professors and authors of Theory of Scheduling, Dr. Conway and Dr. Maxwell. Jim holds a Masters of Engineering and a B.S. degree in Operations Research and Industrial Engineering from Cornell University.


Larry Hargis

Founder & CTO

A deep and quiet thinker, Larry’s exceptional skill in software architecture, simulation software, and production scheduling algorithms was the original center of gravity for PlanetTogether. Today, Larry drives the development and execution of the company’s long range technology platform strategy. Larry is an avid runner and fuels his creative vision by running at least five miles a day to stay fit and build stamina for long hours of R&D.  

Prior to co-founding PlanetTogether, Larry headed the Advanced Planning & Scheduling (APS) development for Epicor Software Corporation and DataWorks Corporation. Larry holds a B.S. in Mathematics and Computer Science from San Diego State University.

Amin Taheri

Amin Taheri

Integrations & Add-Ins Lead

Amin is a whiz at computer science, logical thinking and problem solving. He’s in his zone in software design and leads development of critical product extensions in integration and client-specific solutions. When not at his computer, he’s camping, hiking or playing the guitar. Amin earned a B.S. in Management Science, a B.A. in Mathematics from U.C. San Diego.


John Cameron

Solution Engineer Lead

John’s a veteran APS & MRP planning system consultant and developer with a passion for legendary rock concerts. He’s clapped at more than 80 Grateful Dead shows, and proudly curates a personal library of 1,000 live concert albums and CDs. Surprisingly, John’s a left-brain mathematician who thrives on building graphical analytics and solving client planning problems. He has successfully lead system rollouts of multi-site, global manufacturers. He attended U.C. Santa Barbara for a degree in Math and Physics.


Cavan Crawford

Product Manager

Cavan is one of the behind-the-scenes geniuses that helps lead the design and development of PlanetTogether’s feature rich software. When he’s not in front of the computer or whiteboard, he can be found in the mountains – snowboarding, backpacking, or out on the racquetball courts.  A true thinker, Cavan graduated Magna Cum Laude from California State University, San Marcos with a B.S. in Computer Science.

Ryan McMartin

Ryan McMartin

Knowledge Systems Lead

Ryan hails from the Adirondack region of NY State, and has given up the cold winters to join the PlanetTogether team in San Diego. Ryan lives and breathes learning, and is the life force behind online learning and training videos. Ryan’s expertise in PlanetTogether Support, TOC, Lean, and Six Sigma perfectly positions him to make learning easy and practical.  When Ryan is not creating planning & scheduling videos, he enjoys competitive sailing, cycling or a friendly soccer match.  Ryan holds a B.S. in Physics from Union College.

John Douthitt

John Douthitt

Support Lead

JD is a San Diego native. As a leader of our support team, he enjoys solving problems, and making sure our customers have the tools they need. Outside of the office, he enjoys playing guitar, and exploring San Diego's best hiking spots. JD received his B.A. in Writing from California State University, San Marcos.


Patti Jorgensen


Patti looks after Accounts Receivable and financial software. She holds an Advanced Certificate in QuickBooks Online. Patti spent almost 20 years working for Nortel, a former Canadian telecommunications giant. Her career comprised of performing various functions within Finance and Information Technology, including cross-functional project management and process improvement activities. Patti's other career pursuits include work as a Family Therapist, Mental Health and Suicide Prevention Counsellor, as well as other diverse professional activities such as Website Development, Currency Trading, and running a Media Creation business with her husband. Patti enjoys physical activity and during her university days, she was on a Women's Varsity Wrestling Team. One of her favorite memories is a solo backpacking adventure through the Grand Canyon. In addition to being licensed in Canada as a Certified General Accountant (CGA), Patti holds a Master of Counseling degree from the University of Calgary.



























































































































































































Joseph Castel

Latin America Solutions Lead

Joseph is originally from Haiti, but has worked and lived in Dominican Republic for 6 years. He is an active learner, business enthusiast and process improvement addict, which made his integration in our team a natural fit. He is currently in charge of: software consulting, testing and system integration. Joseph holds a B.S degree in Industrial Engineering from UTESA University. He likes volunteering and speaks 4 languages: Creole, French, English and Spanish. In his free time, he likes to watch movies, listen to music, and learn new languages. As a married man, Joseph dreams to grow a happy family. As an engineer, he strives to make an impact in the engineering world. His mantra: “Beat the Odds”


Peter Brooke

Asia Solutions Lead

Peter is originally from New Zealand, but has worked and lived in Asia for over 20 years. He enjoys watching the All Blacks along with his home town team the Crusaders in the Southern Hemisphere Super Rugby league. His idea of relaxing is trekking in the jungle in his four-wheel drive.

Peter’s background includes over forty years of industry and consulting experience in ERP, Supply Chain Management, Customer Relationship Management, Lean Manufacturing and Information Technology, with major organizations in the manufacturing and distribution sector. Peter has very considerable experience in Strategic Information Systems Planning, Project Management, along with evaluation, selection, and implementation of Supply Chain Management (SCM) and Enterprise Resource Planning Systems (ERP)

He is a past President of the New Zealand Chapter of APICS and is active in promoting the aims of the society including acting as a lecturer for certification courses. He was certified at the Fellow level in Production Inventory Management (CFPIM) in 1991 as well as being certified in Integrated Resource Management (CIRM) in 1994.


Kaia Colban

BOOST Program Coordinator

Kaia led the creation of BOOST and enjoys offering students the opportunity to do real-world projects while exposing companies to headache free scheduling. She is passionate about giving back to the community and participates in many community service oriented activities. Here at PlanetTogether, she works to donate our software to select non-profits in order to increase their productivity. She is an undergraduate at Cornell University and will be graduating in 2019. In her spare time she enjoys hiking, going to the beach, and baking. 

Joseph Corigliano

Joseph Corigliano

Microsoft Partner Development Lead

Joe has a proven reputation for building trusted relationships and driving results in fast-paced and complex environments. Highly specialized in Microsoft and the Microsoft Dynamics ecosystem, Joe has enjoyed over 20 years of partnering for mutual success.


Dr. Bill Maxwell

Cornell University Professor
Board Member

Dr. Maxwell, or "Max" as his friends call him, sits on the PlanetTogether Advisory Board. Max has been on the engineering faculty at Cornell University since 1960 where he authored the ground breaking book, Theory of Scheduling.

He was a Ford Foundation distinguished visiting professor at the University of Chicago in 1968-69, a visiting professor at the University of Michigan in 1977-78, a visiting professor at the Wharton School, University of Pennsylvania, in 1983-84 and a visiting professor at Stanford University in 1989-90. He was a consultant in residence at the RAND Corporation in 1965, at General Motors Manufacturing Development in 1977-78, and at SI Handling Systems in 1983-84.

Bob Lane

Bob Lane

CEO LaneOpx
Board Member

Bob is a thought leader with vast global experience who likes to share his knowledge of operations and supply chain management to help companies get to the next level.   Bob brings years of hands-on experience in professional Services and training/ education within manufacturing firms across multiple industry sectors to improve operational efficiencies and implement sustainable results. He is recognized for turning around organizations and leading companies to success. He has held numerous leadership and executive roles for manufacturing organizations including Sony Corporation.  He is an expert in lean manufacturing, business optimization, global supply chain management and building organizations.

Bob has led the turnaround of seven distressed manufacturing and technology companies.  He has developed global and domestic lean logistics and supply chains for consumer electronics, industrial products, aerospace, medical device and building materials companies. He has collaborated and worked with more than 500 suppliers and contract manufacturers globally.  Bob has taught business professionals at various universities and associations on Supply Chain Management, Lean Manufacturing and APICS.  Bob is the Past President of APICS San Diego. He received a B.S. Degree in Industrial Engineering from CPSU and holds a Professional Certificate in Construction and Architectural Engineering from UCSD.

Moreover, Bob completed advanced Japanese manufacturing education, lean training, and Shingo Lean Six Sigma training. Bob enjoys public speaking and is often invited as the keynote speaker for a variety of professional associations and university events.