Full-Time
Environmental Scientist Project Manager
Updated on 9/4/2026
Apex Companies
1,001-5,000 employees
National environmental consulting and engineering firm
Compensation Overview
$104k - $146k/yr
Fullerton, CA, USA
In Person
Bachelor's, Master's, PhD
 Architecture & Civil Engineering (1) |
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- A Bachelor of Science degree in Environmental Science, Civil Engineering, or Environmental Engineering, or a related field.
- At least 10 years of professional work experience.
- Knowledge of stormwater permitting and planning, water quality monitoring, best management practices, and environmental compliance inspections.
- CPSWQ or CPESC certification.
- QSD or QSP and QISP certifications.
- Ability to read, interpret, and analyze plans, technical manuals, and permits.
- Strong analytical skills.
- Ability to be responsible and accountable for project delivery.
- Ability to perform a high level of quality assurance and quality control on work products.
- Ability to maintain attention to detail with a high level of accuracy.
- Proficient in Microsoft Office Suite.
- Ability to kneel, climb, and lift up to 50 pounds.
- Valid California driver's license and an insurable driving record.
- Manage municipal, utility, industrial, and commercial clients with stormwater planning and compliance efforts associated with Phase I and II Municipal Separate Storm Sewer System permits, the Construction General Permit, and the Industrial General Permit.
- Manage and interpret complex regulatory permits, assist clients with regulatory compliance, prepare technical reports, conduct environmental compliance inspections and sampling, and complete deliverables on time and within budget.
- Lead and manage environmental sampling, testing, and observations involving surface water, stormwater, groundwater, and wastewater.
- Interpret regulatory permits and formulate compliance strategies.
- Prepare comprehensive approaches, work plans, and technical reports and documents, including watershed management plans, stormwater management plans, annual reports, non-stormwater discharge source assessments, adaptive management plans, compliance guidance documents, compliance reports, rain and sampling event summary reports, Stormwater Pollution Prevention Plans, and Water Quality Management Plans.
- Execute and manage field investigations, including mobilization and demobilization decisions.
- Manage the workload of other Environmental Scientist staff.
- Prepare and monitor project budgets.
- Meet with clients regarding work, team performance, and current and future work.
- Perform construction site and facility environmental compliance inspections, including QSP, QISP, and FOG inspections.
- Conduct environmental sampling, testing, and observations involving surface water, stormwater, groundwater, wastewater, soils, and sediments.
- Make field observations and perform data measurement and collection assignments.
- Manage and analyze data through compilation, manipulation, and evaluation.
- Develop and implement monitoring and reporting plans and field studies.
- Perform regulatory and water quality data analyses.
- Participate in and lead technical presentations.
- A Master of Science or PhD in Environmental Science, Civil Engineering, or Environmental Engineering, or a related field.
- Proficiency with ArcGIS.
- OSHA 40-hour HAZWOPER training.
- Ability to perform maintenance and calibration of environmental monitoring instruments, meters, probes, and automated sampling equipment.
Apex Companies provides environmental consulting and engineering services to public agencies and private clients across all 50 states. Its offerings include water resources management, environmental remediation, health and safety, compliance assurance, ESG advisory, and infrastructure engineering, delivering work from site assessments to managing complex projects. A key differentiator is the breadth of services across environmental, health and safety, and ESG, plus its ARTEMIS data-management platform that organizes environmental information for risk mitigation and lending. The company aims to help clients manage environmental risk, achieve regulatory compliance, and efficiently complete projects while expanding its national footprint.
Company Size
1,001-5,000
Company Stage
N/A
Total Funding
N/A
Headquarters
Rockville, Maryland
Founded
1988
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Simplify's Take
What believers are saying
- Zweig named Apex a 2026 Hot Firm, ranking it No. 28.
- March 2026 CWE acquisition expands California engineering reach and cross-sells immediately.
- February 2026 Tully acquisition strengthens stormwater lifecycle services across Northern California projects.
What critics are saying
- Rapid roll-up integration can dilute service quality and overload project managers by 2027.
- The 2024 NRC report flagged a Severity III violation at Apex Companies.
- PE ownership under Morgan Stanley Capital Partners pressures exits; stalled growth breaks the platform thesis.
What makes Apex Companies unique
- Apex bundles water, environmental, and infrastructure work through one national platform.
- ARTEMIS gives clients environmental data management and lending support across project lifecycles.
- March 2026 CWE and Tully deals deepen California civil, water, and stormwater capabilities.
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Benefits
Health Insurance
Dental Insurance
Vision Insurance
Life Insurance
Disability Insurance
401(k) Company Match
Paid Vacation
Paid Sick Leave
Relocation Assistance
Growth & Insights and Company News
6 month growth
↑ 19%1 year growth
↑ 19%2 year growth
↑ 19%Apex Companies announced the acquisition of CWE, an award-winning civil infrastructure, water resources, and environmental engineering services firm with multiple offices in California.
Adds to Core Stormwater Strength and Enhances Ability to Deliver the Full Stormwater Lifecycle in Northern California
Raincatcher, a national mergers and acquisitions advisory firm serving small to mid-size businesses, served as the exclusive sell-side advisor to AquaWorks DBO,
Bolsters Engineering Depth and Extends Operational Presence in Intermountain West
Apex Companies, LLC has acquired Weiler Engineering Corporation, a Florida-based engineering firm. This acquisition enhances Apex's engineering capabilities and strengthens its presence in Florida. Weiler Engineering, with over 45 professionals, brings expertise in civil, structural, and utilities engineering. This move follows Apex's recent acquisitions of Johnson Engineering and Water Science Associates, further expanding its services in the municipal and private markets.