Take Your Design Career To The Next Level
Kleinfelder, a Forbes' Top Employer for Engineers in North America, is committed to a people-first culture, technical excellence, and creating opportunities where employees can thrive!
Are you ready to be challenged, make a difference, and experience professional growth in your career? Kleinfelder's Design team is looking for you! From bridge and structural engineering to civil, electrical, mechanical, and process engineering, Kleinfelder's collaborative Design Services create synergy across multiple disciplines.
Step into Your New Role
Kleinfelder offers co-op positions in many fields and is committed to helping co-op students succeed. Our mentoring and training programs provide the opportunity to work with a diverse group of experienced and technical professionals, who will help guide your career development, challenge you technically, and provide you with the knowledge and confidence to succeed on your own. You will have the ability to give back to your community and work on significant projects.
The co-op position will last 6 months and start in the spring of 2027. The ideal Water Resources Engineering co-op will contribute to our team-oriented environment by providing engineering planning, design, and construction administration services on a variety of municipal water, wastewater, and stormwater infrastructure projects.
Responsibilities include:
Transportation benefit includes a paid MBTA Monthly LinkPass.
Move Forward with Kleinfelder
Kleinfelder has been connecting great people to the best work since 1961. We are engineers, scientists, and construction professionals providing solutions that improve our clients' transportation, water, energy, and other private infrastructure. As a responsive, cross-disciplinary team of bright, curious, and innovative problem-solvers, we are dedicated to doing the right thing, every day, on every project from over 85 offices in the US, Canada, and Australia. Connecting great people to the best work is our purpose - together, we deliver.
Progress with an Employer that Values You
Kleinfelder is an inclusive organization free from discrimination. We are a stronger organization when we are a diverse workforce and believe that throughdiversity, equity, and inclusion comes creativity, innovation, and unity. We are proud to offer the following:
Career Development: We are committed to investing in the professional development of our staff, offering each employee every opportunity to grow, develop, and take control of their career paths. We support these efforts through reimbursements for continuing education as well as many of the expenses associated with trainings and certifications, and opportunities for career development through our internal Mentoring Program.
The expected salary range for the position is displayed in accordance with the Massachusetts Wage Transparency Act. Final agreed upon compensation is based upon individual qualifications and experience. Salary range: $21.09 - $35.22
Equal Opportunity: Kleinfelder is an Equal Opportunity Employer - Minorities/Women/Disabled/Veterans. (Compliant with the new VEVRAA and Section 503 rules)
NOTICE TO THIRD PARTY AGENCIES
Please note that Kleinfelder does not accept unsolicited resumes from recruiters or employment agencies. In the absence of a signed Recruitment Fee Agreement, Kleinfelder will not consider or agree to payment for any referral compensation or recruiter fee. In the event a recruiter or agency submits a resume or candidate without a previously signed agreement, Kleinfelder explicitly reserves the right to pursue and hire those candidate(s) without any financial obligation to the recruiter or agency. Any unsolicited resume, including those submitted to hiring managers, are deemed to be the property of Kleinfelder.
Kleinfelder provides engineering, science, and construction services across transportation, water, energy, and private infrastructure. It delivers consulting, project management, and construction on a project-by-project basis, mainly serving North American and Australian markets. The company combines technical engineering with environmental management, geographic information systems (GIS), and pipeline safety expertise to ensure safety, regulatory compliance, and efficient delivery. Unlike firms that focus on a single discipline, Kleinfelder offers integrated end-to-end solutions by bringing together engineering, science, and construction to serve government agencies, private sector clients, and industrial entities. Its goal is to build and maintain infrastructure that is safe, sustainable, and beneficial to communities, guided by environmental stewardship and rigorous safety and compliance practices.
Company Size
1,001-5,000
Company Stage
N/A
Total Funding
N/A
Headquarters
San Diego, California
Founded
1961
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Kleinfelder, a San Diego-based engineering and environmental services firm, has hired Jason C. Williams as national aviation leader. He will guide the growth and strategy of its aviation business. Williams has over 30 years of experience across the Federal Aviation Administration (FAA), large airports, and military installations. He most recently served as director of operations at IEA Inc., where he led a 135-person team. Earlier, he was lead community planner at the FAA's Louisiana and New Mexico Airports District Office, managing grants worth over $300 million annually. At Dallas Fort Worth International Airport, he worked on a $10 billion, 10-year capital improvement plan and helped secure a $180 million letter of intent for airfield infrastructure. Kleinfelder employs over 3,300 people at more than 100 offices in the US, Canada, and Australia.
Kleinfelder names Jason C. Williams as National Aviation Leader. October 13, 2026 at 06:00 AM EDT i This article is third-party content and does not represent the views of this site. Tamar Securities, LLC make no guarantees regarding its accuracy or completeness. The Kleinfelder Group, Inc. ("Kleinfelder"), a leading engineering, design, construction management, construction materials inspection and testing, and environmental professional services firm, announced today that Jason C. Williams has joined Kleinfelder as National Aviation Leader. In this role, Williams will lead the growth and strategic direction of Kleinfelder's aviation portfolio, leveraging over 30 years of comprehensive experience across the Federal Aviation Administration (FAA), large-hub commercial airports, military installations, and international infrastructure consulting engagements. Williams brings a proven track record of executive leadership, strategic capital planning, and complex infrastructure execution. Most recently, he served as Director of Operations at IEA Inc., where he led civil engineering and infrastructure operations for a 135-person multidisciplinary team while overseeing federal contracting strategy and multi-state market expansion. Prior to his leadership role at IEA, Williams served as Lead Community Planner for the FAA's Louisiana and New Mexico Airports District Office (ADO). In this position, he managed capital improvement programs and federally funded grants valued at over $300 million annually across 110 airports, while overseeing more than 80 airport layout plans, master plans, and airspace planning initiatives. His extensive background also includes over seven years in key management roles at Dallas Fort Worth International Airport (DFW). At DFW, Williams led major aviation planning efforts supporting a $10 billion, 10-year capital improvement plan, directed airfield asset maintenance strategies to minimize operational downtime, initiated planning for the Northeast and Southwest End-Around Taxiway System, and coordinated with the FAA and U.S. Department of Transportation to secure a $180 million letter of intent for critical airfield infrastructure. His technical focus at DFW also spanned innovation and future mobility, including advanced air mobility (AAM) and electric vertical takeoff and landing vehicle (eVTOL) airspace capacity studies in collaboration with FAA headquarters. "Jason's unique combination of experience as an airport owner/operator representative, FAA regulator and planner, and consultant brings immense value to our aviation clients," said SVP and Transportation Market Leader Houman Makarechi. "His ability to translate large-hub operational best practices into scalable, practical solutions for airports of all sizes will be pivotal as we continue expanding our footprint and supporting the modernization of aviation infrastructure nationwide." "I am excited to join Kleinfelder at a time when airports across the country face critical needs for capital infrastructure renewal, capacity expansion, and modern technology integration," said Williams. "I look forward to partnering with our talented technical teams to deliver tailored, forward-looking solutions that meet the evolving operational needs of airport stakeholders and local communities." Williams holds a Master of Business Administration, cum laude, with a specialization in strategic management & marketing from Villanova University, a Bachelor of Science in Aeronautics magna cum laude, from Embry-Riddle Aeronautical University, and an Executive Certificate in Strategic Execution from the University of Virginia's Darden School of Business. He is a certified FAA Air Traffic Controller and a Certified Member of the American Association of Airport Executives. Kleinfelder. Bright People. Right Solutions. Founded in 1961, Kleinfelder is a leading engineering, design, construction management, construction materials inspection and testing, and environmental professional services firm. Kleinfelder is proud to have been recognized by Forbes as one of America's Best Employers for Engineers. Kleinfelder employs over 3,300 professionals and operates from over 100 office locations in the United States, Canada, and Australia. The company is headquartered in San Diego, California. Poised for growth, Kleinfelder continues to provide high-quality solutions for its diverse client base. Visit Kleinfelder.com and follow Tamar Securities, LLC on LinkedIn/Kleinfelder. Contacts. Dustin Esposito Vice President, Communications [email protected] (617) 498-4627 Report this content If you believe this article contains misleading, harmful, or spam content, please let Tamar Securities, LLC know.
Kleinfelder secures significant NAVFAC Pacific contract win. August 27, 2026 Kleinfelder has been selected as one of five firms supporting a cultural resources contract with the U.S. Navy's Naval Facilities Engineering Systems Command (NAVFAC) Pacific. The multiple-award contract has a combined capacity of $70 million and provides Kleinfelder the opportunity to compete for cultural resource technical services throughout the NAVFAC Pacific area of responsibility. The contract includes a one-year base period and six option years, with work expected to continue through August 2033. Kleinfelder was selected through a competitive procurement process that received eight offers. "We're excited to continue supporting NAVFAC Pacific for the next seven years," said Cacilie Craft, MA, RPA, Kleinfelder Pacific Program Manager. "This work gives us an opportunity to demonstrate our expertise in the region while also providing work and training opportunities for our wonderful team of regional professionals." Supporting cultural resources across the Pacific. Work under the contract is expected to take place primarily in Hawai[[ʻ]]i, Guam, and the Commonwealth of the Northern Mariana Islands, with additional work possible throughout NAVFAC Pacific's area of responsibility. The RFP identifies Hawai[[ʻ]]i as accounting for approximately 81% of anticipated work, followed by Guam at 18%, and the Commonwealth of the Northern Mariana Islands at 1%. The contract covers a broad range of cultural resource services, including archaeological surveys, monitoring and data recovery, architectural history and historic preservation studies, archival research, GIS, cultural and historical interpretation, as well as other specialized technical services. Future assignments will be awarded through competitive-bid task orders. The overall contract award gives Kleinfelder the opportunity to support a wide range of NAVFAC Pacific projects over the next several years through applying its team's cultural resources services across the Pacific region.
Kleinfelder expands New Jersey presence with new Murray Hill office. August 2, 2026 Kleinfelder expands New Jersey presence with new Murray Hill office and strategic consolidation of existing operations. NEW PROVIDENCE, NJ (August 3, 2026) - The Kleinfelder Group, Inc. ("Kleinfelder"), a leading engineering, design, construction management, construction materials inspection and testing, and environmental professional services firm, is pleased to announce the opening of its new Murray Hill office in New Providence, New Jersey, and the consolidation of its existing Princeton office operations into its Hamilton and Murray Hill locations. These changes further strengthen the firm's ability to serve public and private infrastructure clients throughout New Jersey, New York, and the broader region. The new Murray Hill office, located at 430 Mountain Avenue, New Providence, NJ 07974, officially opened on August 1, 2026. The office will serve as a strategic hub for clients and projects throughout Northern New Jersey and the lower New York metropolitan area. As part of this transition, the Princeton office will close, with employees relocating to either the recently remodeled Hamilton office or the new Murray Hill location. The consolidation and expansion align with Kleinfelder's growth strategy of strengthening cross-functional collaboration and providing clients with access to a broader range of integrated engineering, environmental, and infrastructure services. "These investments position us to better serve our clients while creating opportunities for greater collaboration across our teams," said Bill Rinker, Area Manager. "With the combination of our Hamilton and Murray Hill offices, we are enhancing our presence in key markets and improving our ability to deliver comprehensive solutions to public and private infrastructure owners." The Hamilton office will continue to serve the suburban Trenton and greater Philadelphia region, bringing together talent and expertise in water resources, civil engineering, environmental engineering, and environmental sciences. Meanwhile, the Murray Hill office expands Kleinfelder's footprint in Northern New Jersey and the lower New York market, providing greater proximity to clients and project opportunities in the region. The Murray Hill office will offer a full range of services, including: * Water, wastewater, and water resources engineering * Civil engineering * Environmental engineering and environmental sciences * Permitting and environmental compliance * Resiliency planning and implementation * Infrastructure advisory and asset management services Kleinfelder's teams support a diverse range of public and private infrastructure owners and specialize in projects such as: * Linear and facility-based capital improvement programs * Water infrastructure planning and design * Asset management and advisory services * Site assessment and remediation * Environmental permitting and compliance The new office and strategic consolidation support Kleinfelder's long-term objectives of expanding service offerings, strengthening market presence, attracting top talent, and delivering exceptional outcomes for clients across the region. Kleinfelder. Bright people. Right solutions. Founded in 1961, Kleinfelder is a leading engineering, design, construction management, construction materials inspection and testing, and environmental professional services firm. Kleinfelder is proud to have been recognized by Forbes as one of America's Best Employers for Engineers. Kleinfelder employs over 3,300 professionals and operates from over 100 office locations in the United States, Canada, and Australia. The company is headquartered in San Diego, California. Poised for growth, Kleinfelder continues to provide high-quality solutions for its diverse client base. Visit Kleinfelder.com and follow Kleinfelder on LinkedIn/Kleinfelder.
Kleinfelder launches ohio-based PFAS lab with nationwide mobile testing capabilities. April 30, 2026 SAN DIEGO, Calif. (April 30, 2026) - Kleinfelder, Inc. (Kleinfelder) has expanded its water treatment and laboratory services with the launch of two new PFAS testing capabilities: a dedicated laboratory and mobile pilot units designed, owned, and deployed by Kleinfelder's technical professionals. The PFAS laboratory, based in Kleinfelder's McClure, Ohio, location, serves clients nationwide and accepts samples from across the United States. The mobile pilot units can be deployed throughout North America, as client requirements dictate. As compliance deadlines to meet drinking water standards for perfluoroalkyl and polyfluoroalkyl substances, commonly referred to as PFAS, quickly approach, utilities and site owners face pressure to act, often with insufficient performance data available to guide decisions. Kleinfelder's new laboratory and mobile pilot units give utilities and site owners the ability to evaluate treatment options under realistic conditions and choose the most effective approach to meet regulations and evolving groundwater remediation objectives. Designed to help close the gap between regulatory requirements and available site data, these two new tools combine Kleinfelder's technical experience with real-world testing to support confident, data-backed decisions to inform full-scale investments. "PFAS treatment isn't one-size-fits-all," said Rebecca Katzke, PE, Kleinfelder's National Water Market Manager. "Our expanded PFAS testing capabilities provide practical answers by showing how different media perform in a client's water, how systems operate over time, and how utilities can plan for long-term compliance with confidence." Comprehensive services from evaluation to implementation. The treatability laboratory includes both Rapid Small-Scale Column Testing (RSSCTs) and batch isotherm bench-scale testing, allowing side-by-side evaluation of granular activated carbon (GAC), ion exchange, and alternative media under conditions that replicate full-scale operation. The automated, containerized mobile pilot units feature similar treatment systems to the fixed lab. Pilot systems can be configured for pressurized or gravity-flow applications and support both groundwater and surface water treatment. Integrated backwashing capabilities provide insight into pressure buildup, fouling, and backwashing needs. The mobility of these units allows testing to occur directly at client sites, producing a greater volume of high-quality, site-specific performance data. For each option, Kleinfelder's comprehensive approach delivers: * Performance data tied directly to operating conditions * Evaluation of multiple treatment media types and suppliers * Scalable results that support full-scale design and cost forecasting Either option helps clients conduct appropriate evaluations to reduce uncertainty, shorten decision timelines, and may help avoid costly redesigns later in the project lifecycle. A practical path forward for compliance. These two new testing capabilities strengthen client access to Kleinfelder's broader PFAS and emerging contaminants services, including regulatory support, treatment design, equipment procurement, and construction oversight. Clients can move seamlessly from testing and evaluation into engineered treatment systems and ongoing operational support while working with one integrated team. Kleinfelder has supported PFAS investigations, pilots, and treatment projects nationwide, as regulations continue to evolve. Kleinfelder. Bright people. Right solutions. Founded in 1961, Kleinfelder is a leading engineering, design, construction management, construction materials inspection and testing, and environmental professional services firm. Kleinfelder is proud to have been recognized by Forbes as one of America's Best Employers for Engineers. Kleinfelder employs over 3,300 professionals and operates from over 100 office locations in the United States, Canada, and Australia. The company is headquartered in San Diego, California. Poised for growth, Kleinfelder continues to provide high-quality solutions for its diverse client base. Visit Kleinfelder.com and follow Kleinfelder Inc. on LinkedIn/Kleinfelder.