Jack F. Zoller, Jr.

CEO & Founder

“Even after all these years in this business, I’m still excited to get to work each day.”

Jack has a 360-view of this industry that makes him an unmatched resource on any project. Clients appreciate his insights and guidance, and know his word is his bond.

He started his career in the 70’s with a concentration in commercial construction and development. Since then he’s done everything from working in the field as a Project Superintendent, to spending five years as a Regional Project Manager for national retail chain.

He’s a hands-on leader who runs a tight ship, continually instilling a “customer first” ethic to all employees.

  • BA in Business Administration, St. Leo’s University
  • Postgraduate studies, NJ Institute of Technology, Construction Management Program

John F. Zoller, III


“I have a technical mind and a roll-up-your-sleeves attitude that serves our clients well.”

John currently oversees Jayeff’s operations and is involved with ever facet of the business. He has been with the company for over 15 years, but in reality has spent a “lifetime” in the industry by growing up with the company. From laborer and superintendent in the field, to project manager and estimator in the office, John has run the gamut of commercial construction.

John possesses a technical background and when combined with his field experience, he is well-versed in cost-efficient construction, value engineering, and in plan review for conformance and constructability. (A fancy way of saying he keeps your project safe, structurally sound, and up to code.) He also prides himself in being customer first and is always available to discuss your project needs.

Prior to Jayeff, John worked as a design engineer at Bohler Engineering, providing land development services to major commercial clients.

  • MS in Civil Engineering, NJIT
  • Graduate Certificate in Construction Management, NJIT
  • BS in Civil and Environmental Engineering, Lafayette College

John Del Guidice

Vice President Preconstruction

“There’s no ‘I’ in our team. Working together, everyone accomplishes more.”

John has vast experience in all forms of construction ranging from 40+ story luxury apartment buildings in NYC to approximately 1 million square foot warehouse distribution centers in NJ. He has been involved with complex projects including triple cellar storage facilities in NY, heavy site contamination & unsuitable soils requiring different forms of piles / ground improvements, & excavation projects along railroads and zero lot lines requiring secant pile walls. With approximately 18 years of commercial construction experience, he has held multiple different positions from superintendent to director of construction.

John currently leads Jayeff’s preconstruction department including everything from budgeting & estimating to project start up & permitting. He oversees a team of estimators and is responsible for preparing detailed estimates and budgets for all clients.

John is detail oriented & strives on success to ensure the project is within budget and on time. This dedication helps ensure a smooth & expeditious project kick off and hand off to the construction department. Even though John’s responsibilities do not include the day to day construction activities, he isn’t afraid to jump in and assist the project managers due to his vast knowledge of the industry.

Bob Zoller

Vice President Construction & Corporate Safety Officer

“We’re the next generation – this business is family.”

Bob grew up in the business, working as a laborer during summer breaks. He has methodically worked his way up since. He started in the Commercial Construction industry as a Field Supervisor, and quickly advanced to Operations, Estimating, Scheduling, and Customer Relations.

As Vice President of Construction and head of our Safety Compliance and Quality Control programs, he pays meticulous attention to all of our projects’ myriad details – so you don’t have to. He oversees a team of project managers to ensure each and every project is completed to the highest standards.

  • Currently holds OSHA 10 and 30 hour certifications
  • BA in Management, Western New England University

Michael Dello, CPA

Chief Financial Officer/Controller

“I believe in an under promise, over deliver approach. We strive to exceed customer expectations”

Michael  has been employed in the construction industry for over forty years from both the field and administrative sides for the business. He has worked in the in the capacity as a field Project Manager to CFO. He also has over ten years of public accounting, thirty years of private construction accounting experience and has a vast knowledge financial statement reporting.

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