Staff Environmental Scientist/Engineer Onterris PayrollStaff Environmental Scientist/EngineerSanta Ana, CaliforniaOur scientists, engineers, field teams and consultants apply systems thinking that unites science, data and practical expertise to deliver solutions that strengthen our clients’ resilience, mitigate risk and protect the air, water and soil that sustain communities, while uncovering responsible paths forward for planet and progress. The Staff Environmental Scientist/Engineer will complete tasks as assigned using applicable tools and skills to help develop, implement, and maintain management strategies, procedures, and plans for our clients to ensure compliance with state, federal, and local regulations.
Senior Project Manager - Hybrid PM2CMSenior Project Manager - HybridPomona, CALocation: Greater Los Angeles area (periodic fieldwork and office/hybrid) Summary: Lead civil/structural engineering for electric substation projects. Responsible for technical design, contractor oversight, construction support, and ensuring projects meet schedule, cost and quality targets.
Environmental Engineer APTIMEnvironmental EngineerIrvine, CA$85,000–$125,000 / yearAPTIM Environmental and Infra, LLC is committed to providing an extensive range of benefits that protect and promote the health and financial well-being of our employees and their families through the APTIM Benefits Marketplace https://aptim.makeityoursource.com/ . Compensation depends on several factors including: experience, education, key skills, geographic location of the position, client requirements, external market competitiveness, and internal equity among other employees within APTIM.
Project Manager (Transportation Focused) Harris & AssociatesProject Manager (Transportation Focused)Irvine, CAFull timeManages and leads key tasks and full range of project management cycle for small to mid-sized projects with moderate complexity/risk requiring moderate levels of functional integration and involving multiple disciplines. Monitor and control financial aspects of projects, and coordinate and adjust work effort with the team to ensure that work is completed within parameters of the agreed-to scope of work, schedule, and budget.
BIM/VDC Engineer FieldAIBIM/VDC EngineerIrvine, CaliforniaYou will be responsible for checking BIM models created by our teams, ensuring they are accurate against point cloud data, identifying deviations or modeling issues, and helping build scalable processes to make BIM QA/QC faster, more consistent, and more automated. We go beyond typical data-driven approaches or pure transformer-based architectures, and are charting a new course, with already-globally-deployed solutions delivering real-world results and rapidly improving models through real-field applications.
Structures Estimator Gables Search GroupStructures EstimatorSanta Ana, CA$100,000–$170,000 / yearThe successful candidate will play a key role in preparing accurate, competitive estimates while collaborating with operations, project management, and subcontractors throughout the preconstruction process. You'll work on challenging, high-profile projects alongside experienced professionals while helping build the roads, bridges, and treatment facilities that serve communities for years to come.
Hydrologic & Hydraulic (H&H) Engineer Zephyr U A S IncHydrologic & Hydraulic (H&H) EngineerOrange, CA$140,000–$200,000 / yearJob SummaryAs a Hydrologic and Hydraulic (H&H) Engineer, you will be key to our design team, leading drainage design, water resources engineering, and hydraulic modeling for complex rail projects, especially for Class I railroads, commuter rail, and transit authorities. Representative Projects at Zephyr Rail Hydraulic modeling and culvert design supporting LA Metro, Metrolink (SCRRA), CSX, UPRR, and BNSF corridor improvements.
NewProfessional Land Surveyor LuxusProfessional Land SurveyorCorona, CAWe are representing a multidisciplinary engineering firm seeking a highly experienced Professional Land Surveyor (PLS) to lead Surveying & Mapping operations across Southern California. Project scope ranges from small-site development to large-scale tract and master-planned community work.
NewConstruction Survey Party Chief Walker River Construction, Inc.Construction Survey Party ChiefSan Bernardino, CA$160,000–$200,000 / yearThis key leadership role will oversee survey operations, maintain project survey control, coordinate with project stakeholders, and ensure the accuracy of construction layout and as-built documentation throughout the life of the project. The successful candidate will work closely with project management, subcontractors, owners, engineers, and construction teams to deliver precise survey services on a complex heavy civil construction project.
NewLand Survey Party Chief Walker River Construction, Inc.Land Survey Party ChiefAnaheim, CA$160,000–$200,000 / yearThis key leadership role will oversee survey operations, maintain project survey control, coordinate with project stakeholders, and ensure the accuracy of construction layout and as-built documentation throughout the life of the project. The successful candidate will work closely with project management, subcontractors, owners, engineers, and construction teams to deliver precise survey services on a complex heavy civil construction project.
Aviation Project Manager HDR, Inc.Aviation Project ManagerIrvine, CAWe bring together planners, engineers, architects, construction management staff, environmental, strategic communications, economists, management consultants and specialists across disciplines to solve complex mobility challenges with innovation, technical excellence, and a deep understanding of community needs. From designing resilient highways and iconic bridges to advancing transit, passenger and freight rail, aviation, federal transportation ports and marine infrastructure, your work will directly support economic vitality, public safety, sustainable and resilient communities and quality of life.
Environmental Project Manager Terraphase Engineering IncEnvironmental Project ManagerIrvine, CA$95,000–$118,000 / yearOur unique company culture philosophy of appreciating and recognizing individuals for their work, leadership, and mentoring, while supporting and encouraging a healthy personal and professional lifestyle help to make Terraphase one of the best places to work. Terraphase was founded with the goal of developing a full-service engineering and consulting firm that provides high-quality services to clients with regional and nationwide operations.
Surveyor SuperbTech, IncSurveyorEl Monte, California$110,000–$150,000This role operates under the general direction of the Planning Manager and is responsible for overseeing survey operations that support land survey, right-of-way, utility, and asset management needs. Operate CADD workstations to produce engineering survey drawings, including horizontal and vertical alignments, layouts, profiles, assemblies, and related documentation.
Senior Building Enclosure Project Consultant ECS LtdSenior Building Enclosure Project ConsultantIrvine, California$125,000–$170,000 / yearECS is currently ranked #60 in Engineering News-Record’s Top 500 Design Firms (April 2026), #148 in Engineering News-Record’s Top 200 Environmental Firms (October 2025) and #50 in Zweig Group’s Hot Firm List (May 2025). 6+ years of related experience with building enclosure consulting, including active on-site construction observation, field investigations, testing, inspections, commissioning (BECx), design review, or forensic investigations.
Environmental Project Manager Terraphase EngineeringEnvironmental Project ManagerIrvine, CaliforniaOur unique company culture philosophy of appreciating and recognizing individuals for their work, leadership, and mentoring, while supporting and encouraging a healthy personal and professional lifestyle help to make Terraphase one of the best places to work. Terraphase was founded with the goal of developing a full-service engineering and consulting firm that provides high-quality services to clients with regional and nationwide operations.
Senior Project Manager/Practice Builder - Municipal/Roadway Kimley-HornSenior Project Manager/Practice Builder - Municipal/RoadwayRiverside, California$150,000–$260,000 / yearOur Practice Builders manage their projects profitably, transition work to qualified staff, grow and mentor staff, and act as a positive leader and mentor. This position is responsible for complex engineering design tasks as well as marketing, client engagement, and the growth of the roadway design practice in local and/or surrounding markets.
Environmental Engineer Visium Resources, Inc.Environmental EngineerAnaheim, CAIn this dynamic role, the Engineer I supports the program implementation for the nonhazardous and regulated waste programs for the company's Parks, Hotels and offsite locations. You will have an advanced understanding of the federal, state, and local solid waste regulatory frameworks and expertise working with internal partners and regulating agencies.
Project Manager -Land LennarProject Manager -LandIrvine, CaliforniaLennar is one of the nation's leading homebuilders, dedicated to making an impact and creating an extraordinary experience for their Homeowners, Communities, and Associates by building quality homes and providing exceptional customer service, giving back to the communities in which we work and live in, and fostering a culture of opportunity and growth for our Associates throughout their career. We reasonably expect the base compensation offered for this position to range from an annual salary of $80,705.00 - $147,046, subject to adjustment based on business-related factors such as employee qualifications, geographic pay differentials (e.g., cost of labor/living, etc.), and operational considerations.
Senior Project Manager Right Hire ConsultingSenior Project ManagerOntario, CaliforniaResponsibilities include interviewing and training employees; planning, assigning, and directing work; appraising performance; rewarding and disciplining employees; addressing complaints and resolving problems. S.) in Civil Engineering or equivalent discipline from a four-year college or university and civil engineering design experience totaling ten years; or equivalent combination of education and experience.
Mechanical Project Engineer (Construction) K2 StaffingMechanical Project Engineer (Construction)Temecula, CaliforniaProject Estimating (Take-Off & Analysis) Project Scheduling (Manpower scheduling) Manage RFIs (Requests for Information) Prepare Submittal Packages Manage Flow of Contractor provided submittal data Assist in data population of forms Prepare Project Progress Billings Assist in Technical Analysis, Trouble shooting, and problem solving of HVAC Air Equipment, HVAC Piping Equipment Systems, HVAC & Plumbing Equipment. Basic working knowledge of ASHRAE data & guidelines Average proficiency with MS Project scheduling program Average proficiency with MS Access or other database programs Above average proficiency with MS Excel & Word Above average proficiency with Internet Above average verbal & writing skills Above average organizational skills in handling & archiving technical data.