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.
NewEnvironmental Scientist Manager Apex CompaniesEnvironmental Scientist ManagerFullerton, California$104,000–$146,000 / yearResponsible for managing municipal, utility, industrial, and commercials clients with stormwater planning and compliance efforts associated with Phase I and II Municipal Separate Storm Sewer System (MS4) Permits, the Construction General Permit (CGP), and Industrial General Permit (IGP). Fueled by high-quality delivery, exceptional client retention, and strategic acquisitions, Apex Companies continues to rank among the fastest-growing firms in the AEC industry, recently recognized by the Zweig Group for our industry-leading growth.
Environmental Scientist Manager PBS Engineering and Environmental Inc.Environmental Scientist ManagerFullerton, CA$104,000–$146,000 / yearResponsible for managing municipal, utility, industrial, and commercials clients with stormwater planning and compliance efforts associated with Phase I and II Municipal Separate Storm Sewer System (MS4) Permits, the Construction General Permit (CGP), and Industrial General Permit (IGP). Fueled by high quality delivery, exceptional client retention, and strategic acquisitions, Apex Companies continues to rank among the fastest-growing firms in the AEC industry, recently recognized by the Zweig Group for our industry-leading growth.
Environmental Scientist/Industrial Hygienist PBS Engineering and Environmental Inc.Environmental Scientist/Industrial HygienistLos Angeles, CA$75,000–$85,000 / yearThis role offers competitive compensation and a robust benefits package, a balanced mix of fieldwork and report writing, company sponsorship for professional and vocational training, work from home opportunity, collaboration with other industrial hygiene, EHS and other experts, and continued professional development and growth afforded by a rapidly growing national environmental consulting company. Fueled by high-quality delivery, exceptional client retention, and strategic acquisitions, Apex Companies continues to rank among the fastest-growing firms in the AEC industry, recently recognized by the Zweig Group for our industry-leading growth.
NewEnvironmental Scientist/Industrial Hygienist Apex CompaniesEnvironmental Scientist/Industrial HygienistLos Angeles, California$75,000–$85,000 / yearEmployee Benefits This role offers competitive compensation and a robust benefits package, a balanced mix of fieldwork and report writing, company sponsorship for professional and vocational training, work from home opportunity, collaboration with other industrial hygiene, EHS and other experts, and continued professional development and growth afforded by a rapidly growing national environmental consulting company. Fueled by high-quality delivery, exceptional client retention, and strategic acquisitions, Apex Companies continues to rank among the fastest-growing firms in the AEC industry, recently recognized by the Zweig Group for our industry-leading growth.
Senior Geologist/Senior Environmental Scientist/Professional Engineer Hydro-Environmental TechnologiesSenior Geologist/Senior Environmental Scientist/Professional EngineerLos Angeles, CaliforniaRemoteThe tools of our trade are environmental site and indoor air quality assessments, risk characterizations, remediation technologies, emergency response services, occupational health and safety services, loss control surveys, risk management consulting, safety services, and litigation/expert witness support. The candidate should have experience managing consulting assignments, must work effectively in multi-disciplinary teams, is expected to be proficient in the analysis and communication of information, and must be able to work cooperatively with agencies, organizations, and individuals to guide decision-making.
NewEnvironmental Scientist APTIMEnvironmental ScientistIrvine, CA$35–$38.46 / hourAPTIM Envir 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.
NewSenior Environmental Scientist III Apex CompaniesSenior Environmental Scientist IIIFullerton, California$83,000–$125,000 / yearResponsible for assisting municipal, utility, industrial, and commercials clients with stormwater planning and compliance efforts associated with Phase I and II Municipal Separate Storm Sewer System (MS4) Permits, the Construction General Permit (CGP), and Industrial General Permit (IGP). Fueled by high-quality delivery, exceptional client retention, and strategic acquisitions, Apex Companies continues to rank among the fastest-growing firms in the AEC industry, recently recognized by the Zweig Group for our industry-leading growth.
Senior Environmental Scientist III PBS Engineering and Environmental Inc.Senior Environmental Scientist IIIFullerton, CA$83,000–$125,000 / yearResponsible for assisting municipal, utility, industrial, and commercials clients with stormwater planning and compliance efforts associated with Phase I and II Municipal Separate Storm Sewer System (MS4) Permits, the Construction General Permit (CGP), and Industrial General Permit (IGP). Fueled by high-quality delivery, exceptional client retention, and strategic acquisitions, Apex Companies continues to rank among the fastest-growing firms in the AEC industry, recently recognized by the Zweig Group for our industry-leading growth.
Senior Stormwater/Environmental Scientist-QSD NV5Senior Stormwater/Environmental Scientist-QSDTorrance, California$120,000–$150,000 / yearOverview: NV5 is a provider of engineering and consulting services to public and private sector clients, delivering solutions through six business verticals: Environmental Health Sciences; Testing, Inspection & Consulting; Infrastructure; Utility Services; Buildings & Program Management; and Geospatial Technology. The team works to serve our existing and rapidly growing client base in multiple sectors; including public agencies (Phase I and II NPDES Permittees), industrial clients (ie: aerospace, manufacturing, food service, etc.), schools and universities, and development (real estate and construction).
NewAir Quality Scientist Intern IQAir North America, Inc.Air Quality Scientist InternLa Mirada, CA$35–$40Air quality, atmospheric science, environmental health, scientific writing, data analysis, or related experience preferred; experience with Python, R, SQL, GIS, data visualization, additional languages, or international/cross-cultural work is a plus. The ideal candidate is a strong researcher and writer who is comfortable working with scientific information and quantitative data, highly organized, and interested in air pollution, environmental health, and improving public access to air quality information.
Environmental Health and Safety (EHS) Internship, Summer 2026 Edwards LifesciencesEnvironmental Health and Safety (EHS) Internship, Summer 2026Irvine, CA$54,000–$72,000 / yearCurrent enrolled at an accredited university for the duration of the Internship project pursuing a Bachelor’s degree in Environmental Health and Safety, Environmental Sciences, Occupational Health and Safety, Chemical Engineering, Industrial Engineering, Environmental Science, or a related field. + Day‑to‑day work includes reviewing air quality data, conducting gap and applicability assessments, tracking corrective actions, maintaining documentation, and supporting verification activities.
Principal Environmental Manager Universal Engineering SciencesPrincipal Environmental ManagerLong Beach, CA$150,000–$200,000 / yearFull timeThe physical requirements for this position may include and are not limited to:o Ability to lift and/or carry up to 40 lbso Ability to stand and walk for long periods of time as well as drive long distanceso Frequent use of fingers, hands and arms for typing, cellphoneo Ability to bend, twist, reach, stoop, pull, kneel, lift, carry, and push repetitivelyo Ability to speak and hear effectively to communicate sometimes with noisy environmentso Ability to see, smell, hear and touch as well as reach, climb or balance, crouch, stoop, crawl, kneel and sito Ability to regularly lift and/or move/shake up to 40lbs. Who We Are: At UES, we’re a team of more than 4,000 engineers, scientists, geologists, inspectors, technicians, and drillers united by a shared purpose—to make a meaningful impact in the communities we serve.
Project/ Associate Level Air Quality Engineer or Scientist SLR ConsultingProject/ Associate Level Air Quality Engineer or ScientistIrvine, California$75,000–$95,000 / yearSLR strives to build diverse teams that reflect the communities we work in, and encourages applications from traditionally underrepresented groups including women, visible minorities, Indigenous peoples, people identifying as 2SLGBTQI+, veterans, and people with disabilities. Experience with reporting programs such as air emissions inventory, greenhouse gases, annual/semi-annual air permit reports, annual air compliance certifications, monthly air permit reports.
Project/ Associate Level Air Quality Engineer Or Scientist SLR ConsultingProject/ Associate Level Air Quality Engineer Or ScientistIrvine, CA$75,000–$95,000 / yearSLR strives to build diverse teams that reflect the communities we work in, and encourages applications from traditionally underrepresented groups including women, visible minorities, Indigenous peoples, people identifying as 2SLGBTQI+, veterans, and people with disabilities. Experience with reporting programs such as air emissions inventory, greenhouse gases, annual/semi-annual air permit reports, annual air compliance certifications, monthly air permit reports.
Environmental Field Project Manager - (Stack) MontroseEnvironmental Field Project Manager - (Stack)Santa Ana, CAOur 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. To thrive in this role, you'll be comfortable taking ownership of the following responsibilities: Follow established testing methods, procedures, and processes to help support consistent and reliable source testing.
Principal Environmental Consultant Terraphase Engineering IncPrincipal Environmental ConsultantLos Angeles, CA$145,000–$200,000 / 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. The ideal candidate is a technical expert and practicing environmental professional who can build lasting client relationships, manage teams, and serve as a strategic leader in private-sector remediation projects.
Environmental Field Project Manager - (Stack) Onterris PayrollEnvironmental Field Project Manager - (Stack)Santa 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. To thrive in this role, you’ll be comfortable taking ownership of the following responsibilities: Follow established testing methods, procedures, and processes to help support consistent and reliable source testing.
Principal Environmental Consultant Terraphase EngineeringPrincipal Environmental ConsultantLos Angeles, California$145,000–$200,000 / 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. The ideal candidate is a technical expert and practicing environmental professional who can build lasting client relationships, manage teams, and serve as a strategic leader in private-sector remediation projects.
NewEnvironmental Principal PBS Engineering and Environmental Inc.Environmental PrincipalSignal Hill, CA$130,000–$170,000 / yearFueled by high-quality delivery, exceptional client retention, and strategic acquisitions, Apex Companies continues to rank among the fastest-growing firms in the AEC industry, recently recognized by the Zweig Group for our industry-leading growth. The Role: We are seeking a technically strong, senior technical advisor and thought leader, translating complex environmental challenges into high-value solutions for clients.