Linscott, Law & Greenspan, Engineers (LLG) provides transportation planning, traffic engineering and parking consultation services. Since our founding in 1966, projects have been completed involving a wide variety of assignments throughout the United States and overseas, with the core of our practice in Southern California. LLG maintains offices in Pasadena, Irvine and San Diego.

LLG is a well-respected firm of approximately 60 employees, comprised of dedicated professionals who serve our clients on a wide variety of traffic and transportation issues. LLG Principals and Senior Staff are recognized experts in these practice areas and possess professional registration in Traffic Engineering, Civil Engineering or both. Our diverse experience and expertise enable us to provide services to both public agencies and the private sector.BBB_Verified

LLG is also a certified Small Business Enterprise (SBE) and a VERIFIED™ D&B Credibility Corp Business.


We provide insightful, accurate, and innovative transportation planning and engineering solutions that emphasize the importance of safe, equitable, and efficient mobility for the traveling public. Our success comes from representing the public’s best interest and challenging ourselves to grow personally and professionally in a collegial environment.

Our Management Team

Keil Maberry, K.C. Yellapu, John Boarman, David Shender, Dan Kloos, Tamra Napolitano, Dave Roseman, Richard Barretto, Shankar Ramakrishnan and Zawwar SaiyedLeft to Right: Keil Maberry, K.C. Yellapu, John Boarman, David Shender, Dan Kloos, Tamra Napolitano, Dave Roseman, Richard Barretto, Shankar Ramakrishnan and Zawwar Saiyed


Left to Right: Dan Kloos, Zawwar Saiyed, Richard Barretto and Keil Maberry
Chief Financial Officer
LG2WB Engineers, Inc.
Managing Principal
Associate Principal
Associate Principal


Left to Right: David Shender and David Roseman
LG2WB Engineers, Inc.
Managing Principal

San Diego

Left to Right: K.C. Yellapu, John Boarman and Shankar Ramakrishnan
Managing Principal


Tamra Napolitano
LG2WB Engineers, Inc.



Our Founders
Circa 1976
Phil Linscott, Bill Law, and Jack Greenspan


Linscott Associates was founded by Phil Linscott in 1966, with the help of his wife Betsey, to focus on traffic and parking issues. We were one of the first independent firms in Southern California (that is, not a local office of a national firm) and remain independent to this day. Jack Greenspan joined the firm later that year, and Bill Law did so in the early 1970s. By then, we were three (namesakes, that is) and the company name was broadened to Linscott, Law & Greenspan, Engineers, a California Corporation, in 1976. Or for short, simply…LLG.

In 1984, Phil retired, and we continued as Linscott, Law & Greenspan, Engineers, but changed our incorporated name to LG2WB Engineers, Inc. to reflect the initials of the remaining and emerging company leadership at the time. This was significant in that the company leaders were grown largely from within, a practice that continues to this day. Bill subsequently retired in the early 1990s as did Jack in 2005. As they did, others emerged to lead the firm, our staff grew to more than fifty, and our offices continued to expand in Pasadena, Irvine and San Diego, while working on a variety of challenging assignments from an enviable client list.

Having achieved our 50th birthday on November 1, 2016, and while looking forward and beyond, we remain an independent firm, led by a Management Committee committed to the core values and integrity of our founders. The men and women of LLG have worked diligently to establish and maintain a reputation for providing quality services that are insightful, accurate, timely and in the traveling public’s best interest. In consultation with the public agencies, owners, developers and other design professionals, we remain committed to the fundamental values of our history while providing exemplary service to our clients.

William (Bill) A. Law
May 3rd, 1921 – August 21st, 2018

LLG Engineers - William (Bill) A. Law

It is with great sadness to inform you that Bill Law passed away on the morning of August 21, 2018. Bill’s daughter, Kathy Steimer, let us know he passed away peacefully and was with family. Our sympathy, thoughts and prayers are with the entire Law family.
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Our Legacy

On November 13th, 2016 the LLG family proudly celebrated our 50th anniversary.  The event was held aboard the Hornblower Endless Dreams in Newport Harbor, and featured three of our founders; Betsey Linscott (wife of Phil Linscott), Bill Law and Jack Greenspan.  It is rare for a company to maintain its original private ownership for five decades, and rarer still for the founders to be able to see how their legacy had developed.  This was the first time that Betsey, Bill and Jack have all been together as a group in nearly 30 years, and it afforded our current leadership and staff the pleasure and honor of meeting them to celebrate this incredible milestone as a group.  The cruise provided a picturesque venue for socializing, dining, and viewing an extensive slide show featuring photos of company events and staff members old and new. There were plenty of warm memories and laughs to be had of yesteryear fashions (thank you, 1970’s), and we were blessed with perfect weather for a perfect party.  Enjoy the celebration photos!

Our Legacy

More Photos


Clare Look-Jaeger
Retires from LLG

Clare Look Jaeger

Clare Look-Jaeger, P.E., retired from LLG in March 2022, after a 34-year career with LLG. Her leadership, welcoming attitude, and selflessness are only some of the reasons she is loved. With this, she has been an inspiration for all her colleagues, especially in the Pasadena office.
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John P. Keating
Retires from LLG after 40 Years

John P. Keating

John Keating retired from LLG in June 2021, after a 40-year career, all with LLG. After graduating from UW-Madison in 1981, he packed his compact car with all his possessions and drove west to LLG’s Pasadena office. He learned a lot from Bill Law and Lee Ward. In addition to his LLG responsibilities, John successfully managed Car Counter Company, a subsidiary of LLG. The newly opened San Diego office was struggling and in late 1985 John was asked if he would be interested in relocating to San Diego to manage it.
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Paul Wilkinson
Announces Retirement

Paul Wilkinson

After a distinguished 42-year career with Linscott, Law & Greenspan, Engineers (LLG), Paul Wilkinson recently announced that he is retiring, as of February 16, 2018. He joined LLG in 1976, having worked one year at the County of Los Angeles Road Department. Showing good promise, the following year Jack Greenspan asked him to relocate to Orange County to open an office there to better serve a growing client list in that market. That office grew to become our Corporate Headquarters. As the original “L”,” L”, and the “G” reached their own retirements, Paul represented the second generation of leadership. He was named President in 1991 and served in that capacity for 17 years. When he passed on the reins, he then became Chairman of the Board & CEO, positions he held for the last 10 years.
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We Thrive Together Whether Working or Socializing

LLG Benefits & Perks Collage

LLG offers a superior compensation package that includes base salary, productivity bonuses and a quarterly bonus plan and a benefits package that provides employer-paid medical, dental and vision insurance for employees and qualified dependents. Life insurance (at twice annual salary), long-term disability insurance, flexible spending plan or health savings account and 401(k) plan that includes a profit sharing component are sponsored by the Company for all full-time employees. We are a respected, stable firm with an almost 60-year history offering tremendous growth potential to qualified candidates.

LLG offers a comprehensive package of Benefits & Perks for all full-time employees:

  • Retirement Plan / 401k Plan
  • Quarterly Performance-Based Compensation
  • Annual Performance-Based Compensation
  • Life Insurance (equal to two times annual salary)
  • Medical Plans
  • Long Term Disability Insurance
  • Vision Insurance
  • Dental Insurance
  • Optional Alternative Work Schedule (1/2 day Fridays)
  • Paid Vacation
  • Holiday, Sick & Bereavement Leave
  • Flexible Spending & Health Savings Account
  • Company-Paid Continuing Education (work-related education)
  • Professional Societies Memberships
  • Community Service Program
  • Mentoring Program
  • Company-Sponsored Holiday Party & Picnic
  • Company-Sponsored Monthly Anniversary / Birthday Celebrations
  • Team Leaders Program
  • Special Recognition Christopher H. Nguyen Memorial Award
  • In-office professional development sessions
  • Corporate Wellness Program – Sonic Boom

LLG Annual Picnic Collage
Our annual picnic is a fun filled company social event that brings together our entire LLG team and their families. Everyone gets to enjoy some delicious food, fun games, as well as exciting prizes and gifts for all.

Mentoring program

LLG Mentoring Program

Starting a new career – or continuing your career with a new firm – can be both exciting and challenging; new people, new projects and new opportunities create a dynamic transition. LLG is committed to our employees’ success. When you join the LLG team, you will be paired with a seasoned staff member to help ease the transition into our organization. The mentoring program is part of a larger, formal training and development program that encourages on-site and off-site learning and teaching as a part of our commitment to provide a challenging and rewarding career experience.


Team Leader Program

LLG - Team Leader Program

LLG’s Team Leaders Program empowers and develops our emerging and future generation of leadership. The Team Leaders serve as a direct liaison to the Company’s Management Committee and provide insightful and valuable feedback on current and future company operations, business practices and policies, and marketing efforts. The Team meets regularly and through these efforts has created an enhanced version of the firm’s Company Values, as well as invaluable management tool technical material resource documents that have been distributed company-wide. Team Leaders are paired with a Principal who acts as a mentor in their emerging leadership roles.

Job Opportunities

You spend one-third of your average day at work…
What do you want that experience to be?

LLG strives to provide a workplace environment that allows employees to achieve success through respect, personal and professional growth. At LLG, you’ll find yourself among like-minded people – achievers who strive to continually enhance their knowledge and skillset in a professional, supportive environment.

LLG values not only education, experience and talent – but work ethic, fairness, helpfulness and a positive attitude. We have a successful track record of building positive team environments where we succeed in serving our clients and each other.

If you are looking for a positive change in your career, or are a talented and enthusiastic graduate looking to start one, LLG might be a great fit.

The Company currently has the following positions open and is accepting resumes within our offices:

LLG is an equal-opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state, or local laws.


Engineering Associate

Linscott, Law & Greenspan, Engineers (LLG) is seeking a full-time, Engineering Associate to work closely with transportation engineers & planners on various planning and design projects. Engineering Associates will assist Project Managers with professional engineering work related to the analysis and design of transportation facilities such as: conducting field investigations and documentation; contributing to the preparation of transportation impact reports, parking studies, and other technical studies; assisting with preparation of preliminary plans; and other transportation-related projects and tasks. Engineering Associates plan, perform, and coordinate professional and technical traffic engineering studies and surveys.

Pay range: $38 – $46

Location: Pasadena


  • Prepare various analyses for transportation impact studies/parking studies, e.g., trip forecasts, capacity/delay calculations, parking occupancies, etc.
  • Create report exhibits using AutoCAD, ArcGIS, or other software.
  • Create and edit conceptual improvement plans for geometric striping, traffic signals, traffic control, and street lighting.
  • Conduct field reviews of existing roadways, traffic control equipment, and pedestrian/bicycle/transit facilities.
  • Coordinate with public agencies to obtain relevant traffic data, e.g., traffic signal timing, collision records, cumulative development lists, etc.
  • Oversee and coordinate the work of consultants and contractors, including management of data requests for the collection of traffic/parking data.

Preferred Software Proficiencies:
AutoCAD; ParkCAD; AutoTURN; ArcGIS; Synchro 11; HCS2024; Microsoft Office; Bluebeam; Adobe Acrobat; and Photoshop Elements

Minimum of two years of experience applying the principles and practices of civil/traffic engineering, or a degree in a relevant discipline in lieu of the required experience. Valid California Driver’s License and proof of automobile insurance.

To be considered for this opportunity, email Francesca Bravo at with your resume.

Engineering Aide I/Technician I

Linscott, Law & Greenspan, Engineers (LLG) is seeking a part-time, entry-level Transportation Engineering Aide I/Technician I to provide support for our traffic engineering design consultation projects.

Pay range: $18 – $30

Location: Pasadena


  • Conduct fieldwork, e.g., intersection documentation, roadway measurements, photo documentation, signal timing, and parking inventory.
  • Lead efforts in updating our AutoCAD library to increase the efficiency of our design group’s plan preparation process, e.g., consolidate frequently used blocks, organize title blocks for various agencies, and develop solutions to streamline AutoCAD workflows.
  • Lead efforts in developing a GIS database of project information, e.g., location and extent of plans, extent of topographic surveys on file, and location of traffic count data.
  • With additional experience and supervision of office principals and senior staff, Aides can implement edits to conceptual mitigation measure plans, geometric striping plans, traffic signal plans, traffic control plans, and street lighting plans.
  • Aides will also assist with preparing transportation impact studies/parking studies, e.g., trip forecasts, public agency coordination, data requests, traffic/parking data count collection, and the creation of report tables/exhibits using AutoCAD/other software.
  • May also provide in-house, as-needed support to Project Managers on various Transportation Planning projects on a project-by-project basis.

Preferred skills: Familiarity with ArcGIS; Synchro, HCS; working towards an Engineering/Planning degree, or equivalent, from an accredited college or university (juniors and seniors preferred).

Required: Experience in AutoCAD and Microsoft Office. Valid California Driver’s License and proof of automobile insurance.

To be considered for this opportunity, email Corinna Gutierrez, P.E., at with a resume.


Travel Demand Modeling Analyst

Linscott, Law & Greenspan Engineers (LLG) is seeking a full-time Travel Demand Modeling Analyst to work out of our Irvine, CA, office while supporting Irvine, Pasadena and San Diego offices. The position will report to a Senior Transportation Engineer in the Irvine, CA, office.

The primary responsibilities are to provide technical support to a variety of projects ranging from travel demand model development and application (four-step, active transportation model and activity-based models), Vehicle Miles Traveled (VMT) and California Environmental Quality Act (CEQA) analyses, develop and maintain travel forecast models, survey design and evaluation, data visualization, transit and highway corridor assessments, location-based analytics, assessment of transit and shared mobility systems, transportation market research, Connected and Autonomous Vehicles (C/AV) planning and modeling analyses and network development assignments. The Analyst may also be asked to contribute to business development and project management activities.

Pay range: $37.81 – $45.00 an hour


  • Experience with travel demand software packages, such as TRANSCAD/ Cube Voyager /VISUM.
  • BS or higher in transportation planning, engineering, or related discipline.
  • 3+ years of professional experience in travel demand modeling, modeling-related planning applications, and travel demand model development.
  • Strong quantitative and interpretive abilities.
  • Working knowledge of ArcGIS.
  • Working knowledge of statistical analysis, especially as it relates to travel demand model development.
  • Working knowledge of computer programming languages (GISDK, R, Python, Java, C#, C++, VB, or FORTRAN).
  • Develop and maintain travel forecast models, including travel model software development, maintenance, improvement, and debugging.
  • Support travel model applications in long-range regional plans, transit system implementation and analysis, corridor studies, air quality conformity analysis, and major highway and transit investment studies.
  • Knowledge of SB 743, VMT, CEQA analyses.

Preferences: Proficient in MS Word and MS Excel.

To be considered for this opportunity, please email Marlena Catalusci (Irvine Office) at with your resume.

Engineering Aide I

Linscott, Law & Greenspan Engineers (LLG) is seeking a Part-time, entry-level Transportation Engineering Aide I.

Pay range: $18.39 – $20.89 per hour

Location: Irvine, CA

Fieldwork, e.g., intersection documentation, measurements, photo documentation, and signal timing. Preparation of documents, tables/graphics, and miscellaneous research in support of traffic impact studies and various parking studies, e.g., parking accumulation studies, shared parking demand studies, and code versus supply studies. With training, provide support in traffic forecasting, service level calculations, impact evaluation, and computerized traffic signal evaluations. With additional experience and under the supervision of office principals and senior staff, Aide’s will have the opportunity to prepare various sections of reports and technical memorandums.

Preferred skills: GIS and/or AutoCAD experience.

The Engineering Aide I requires a valid California Driver’s License.

All qualified applicants will receive consideration for employment without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state, or local laws

To be considered for this opportunity, please email Marlena Catalusci (Irvine Office) at with your resume.


Mid-level/Senior Transportation Planner or Traffic Engineer

Linscott, Law & Greenspan Engineers (LLG) is seeking a Full-Time, Mid-level/Senior Transportation Planner or Traffic Engineer.

Pay range: $80,000 to $110,000

Location: San Diego

Closely work with office Principals and team members in preparing and managing traffic studies, parking studies, Vehicle Miles Traveled (VMT), Active Transportation such as pedestrian and bicycle studies, conceptual design, and other mobility studies.

Required experience:
2-12 years of experience in Traffic Engineering and Transportation Planning.

Required skills:
Synchro, VISTRO, and SIDRA. Knowledge of SB743, VMT, CEQA analysis, GIS, and/or AutoCAD. Excellent writing and communication skills and client and agency interaction experience is preferred.

Preferred Certification:
Engineer-in-Training (EIT) certification and Professional Engineer registration.

All qualified applicants will receive consideration for employment without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state, or local laws.

To be considered for this opportunity, please email John Boarman, P.E., at with your resume.

Christopher H. Nguyen Memorial Award

Christopher H. Nguyen

Christopher H. Nguyen exemplified the core values of Linscott, Law & Greenspan Engineers (LLG). He personified leadership, enthusiasm, assertiveness, diligence and intelligence during his tenure at LLG. The Christopher H. Nguyen Memorial Award was established in 2006 and is named in his memory. Recipients are recognized for their outstanding contributions to the firm. The following recipients have been recognized for outstanding contributions and exhibiting many of the same qualities that Chris brought to the firm.

Natali Esparza2023
Natali E. Esparza

with LLG since 2021

Erika Carino2022
Erika Carino, PE, RSP

with LLG since 2013

David Spinler2021
David V. Spinler

with LLG since 1991

Corinna Gutierrez2020
Corinna Gutierrez, PE

with LLG since 2008

Hung Luong2019
Hung Q. Luong, PE

with LLG since 2011

Kim Preap2018
Kim H. Preap, PE

with LLG since 2003

Grace Turney2017
Grace Turney, PE

with LLG since 2013

Shane Green2016
Shane S. Green, PE

with LLG since 2004

Francesca Bravo2015
Francesca S. Bravo

with LLG since 2003

Yu Chu2014
Yu Chu, PE

with LLG since 1995

Tamra Napolitano2013
Tamra McVey Napolitano

with LLG since 1992

Alfred Ying2012
Alfred C Ying, PE

with LLG since 1999

KC Yellapu2011
K.C. Yellapu, PE, TE, PTOE

with LLG since 2005

Zawwar Saiyed2010
Zawwar Saiyed, PE

with LLG since 2006

Shankar Ramakrishnan2009
Shankar Ramakrishnan, PE

with LLG since 2004

Christopher Mendiara2008
Christopher J. Mendiara

with LLG from 1998-2020

Donald Rodriquez2007
Donald L. Rodriquez

with LLG since 1991

Dan Kloos2006
Dan Kloos, PE

with LLG since 1998