Site Development Manager Jobs in Rialto, CA (NOW HIRING)

At Core States Group, the work you do matters to the clients we serve, the communities we support, and the teams who rely on one another to deliver with excellence. Our Cause is powerful: to create a world where all environments improve everyday life.

Why Professionals Choose Core States Group

Here’s what you can expect:

• VALUES-DRIVEN CULTURE – A workplace rooted in Integrity, Service, Inclusion, Excellence, and Innovation. Our Core Values guide how we work, how we treat each other, and how we show up for our clients every day.
• COMPENSATION – Competitive wages and bonus programs, including professional licensure bonuses.
• RETIREMENT – A strong 401(k) match, with immediate vesting, to help you invest in your future and build your retirement savings with confidence.
• HEALTHCARE – Competitive health benefits including HSA with employer contribution, life insurance options, and supplemental coverage options, giving you the flexibility to select the coverage that best fits your needs and lifestyle.
• VACATION – Generous PTO to help you recharge, relax, and maintain a healthy work-life balance.
• PERKS – Team wellness challenges, free virtual gym app, wholesale club membership reimbursement, employee recognition programs, paid parental leave and much more!
• FLEXIBLE WORK ENVIRONMENT – A flexible work environment that empowers you to do your best work, whether you’re in the office, working remotely, or blending both to support your responsibilities.
• TUITION REIMBURSEMENT – support your growth with tuition reimbursement to help advance your education and professional development.

Summary of the Role

A Civil Project Engineer is responsible for managing the planning, design, and construction of a variety of civil engineering projects, ensuring delivery on time, within budget, and to establish quality standards. This position plays a key role in overseeing project activities, coordinating resources, and guiding team members. The Civil Project Engineer will also foster collaboration and promote synergies across Core States Group to support successful project outcomes and organizational growth.

Responsibilities

• Preparation of construction plans, feasibility reports, cost estimates, drainage reports and other project documents with little supervision needed.
• Coordination with review agencies, clients, and sub-consultants for permit application.
• Preparation of grading plans, profiles, road design and details using AutoCAD Civil 3D.
• Research regulatory requirements and design standards.
• Perform detailed and complex calculations for storm water facilities, utility systems, and roadway improvements.
• Work with drafters, designers, and administrative staff to complete projects in a timely manner and within budgets.
• Preparation of site development plans for large and small scale residential, commercial, industrial, multi-use complexes, master planned communities and business parks.
• Update and manage spreadsheets, task lists, memos, and other materials related to internal programs.
• Support internal project administration by setting up new project numbers, organizing billing reports, preparing/tracking contracts, and following up on outstanding invoices.
• Participate in meetings to review project updates, receive assignments, and take meeting notes as necessary.
• Other duties as assigned.

Qualifications

We’re looking for talented professionals who are eager to grow their skills and contribute to high-quality, meaningful work. If you’re driven, collaborative, and ready to take the next step in your career, we want to hear from you. The following qualifications will help you succeed in this role:

• Bachelor’s degree from a four-year college or university in Civil Engineering or another relevant field of study preferred, or equivalent.
• Professional Engineer (PE) license required, ability to obtain additional states required.
• Proven experience of at least 5 years in civil engineering within an engineering or construction firm.
• 5+ years of site development design experience.
• Proven track record of successful project management and client relationship management.
• Prior experience and a willingness to be a direct hands-on contributor while leading the Engineering function, serving as the subject matter expert.
• AutoCAD, AutoCAD Civil 3D proficiency including the use of grading tools and creation of alignments, profiles, corridors, and surfaces.
• Demonstrated ability and willingness to identify practical uses for company-approved AI tools to improve team processes, support better decisions, and increase efficiency.
• Demonstrated ability to review AI-generated content for accuracy, protect confidential information, and remain responsible for the final work product.

Work Location

This is a hybrid position based out of the following Core States Group Offices: Kent, WA; Bellevue, WA; Puyallup, WA; Richland, WA; Scottsdale, AZ; Roseville, CA; Long Beach, CA; Ontario, CA; Frisco, TX; Bentonville, AR; Naperville, IL; Tampa; FL; Burlington, MA; Minneapolis, MN; Charleston, NC; Somerville, NJ; Philadelphia, PA; or King of Prussia, PA.

• We are also open to remote candidates based in WA.

Company Overview

Core States Group is an industry-leading architecture, engineering, and construction (A/E/C) firm trusted by many of the world’s most notable brands. With 24 offices across the United States and Canada, the firm delivers speed to market, cost certainty, and compelling design for national multisite programs and projects. Established in 1999, Core States Group drives innovation and improves everyday life for countless people across several markets, including Convenience, Distributed Generation, Financial, Grocery, Housing, Industrial, Restaurants, Retail, Semiconductor, Zero-Emission Vehicle (ZEV) Infrastructure, and more. Visit us at www.core-states.com.

A Note to Candidates

Please do not be concerned if you do not meet every requirement. At Core States Group, we are dedicated to building a diverse and inclusive workplace, so if you are excited about this role but your experience does not align perfectly with every qualification in the job description, we encourage you to apply anyway. You may be just the right candidate for this or other roles.

This position will remain open until it is filled.