Our Team

At Jacob Construction and Design, collaboration is what defines us. Our breadth of capabilities stems from time-tested processes, lasting partnerships, and effective communication. What truly sets us apart from our competition is our people. Our team of qualified engineers, licensed contractors, electricians, construction managers, admin staff and skilled tradesmen hold a diverse set of skills and experience, ensuring a well-rounded perspective on company operations. This collective expertise coupled with innovative technology allows us to directly fine-tune the outcome of every one of our projects. At the end of the day, our goal is to build smarter by listening, learning, and responding to our people. The combined experience and collaborative effort of our team ensures our projects are completed on time, on budget, and in line with all specifications.

The following leaders are the driving force behind JCD’s development and pursuit to continuously push the boundaries in innovative construction practices.



Jacob H. Pickering


Jacob Pickering has been at the helm of Jacob Construction & Design, Inc. since its inception in 2007. With two decades invested in the construction industry, he has acquired the management skills and first-hand working knowledge to bring projects of all scales to life. As the head of day-to-day operations, he strives to leverage his construction experience and knowledge to help JCD derive sustainable solutions to client needs and challenges. Although Jacob has supervised the construction of some of JCD’s most complex projects, his primary focus is business development and aligning the company’s strategic focus on new and emerging market opportunities. But equally important is the care and devotion he places on maintaining and strengthening current client relationships. No matter how busy his day may be, he prides in having an open-door policy and is not afraid to get his hands dirty.

Erick V. Marretti

Senior Project Manager

Erick Marretti manages JCD’s Northern California region. In this capacity, he is responsible for both the acquisition of new work, as well as the management of JCD’s high profile projects. As the senior project manager and estimator with well over 25 years of construction experience, Erick has maintained an impeccable track record for successfully delivering projects from concept to completion. He currently overseas Jacob Construction & Design’s field office out of Monterey, California, from which he manages our multi-million-dollar Design-Build and Indefinite Delivery Indefinite Quantity contracts. His role is to monitor project performance, ensuring scheduling, safety, and quality goals are continuously scrutinized and achieved in all JCD projects.


Monica Vega

Executive Assistant

Monica Vega is integral to all Jacob Construction & Design’s operations given her experience in project management and Indefinite Delivery Indefinite Quantity contracts. From our main office, she provides leadership to our admin team for day-to-day support of our field managers, subcontractors, and clients. She is also the checks and balances for all JCD’s procurement efforts. With well over a decade of hands-on experience, Ms. Vega keeps Jacob Construction & Design, Inc. current with all contracting requirements in the local, state, and federal arena. Her skills and working knowledge of management, the various phases of construction, communication, and the changing legal structures allow JCD to stay competitive in the contracting market.

Karl O. Koskin

Project Manager/Quality Control Manager

Karl Koskin manages JCD’s JOC division in Marine Corps Mountain Warfare Training Center in Bridgeport, California. He has well over 25 years of construction experience, 20 of which has been in the capacity of direct supervision, quality control and safety management of on-site crews and subcontractors. From conception to completion, Mr. Koskin is actively involved in aspects of the project and able to constantly deliver on time and on budget. He has maintained an impressive track record for managing multiple concurrently run projects while fostering a culture for safety and quality.