Senior Environmental Engineer or Scientist

Find your path and enjoy the journey at Haley & Aldrich
. With us, you’ll tackle clients’ most meaningful challenges in the built and natural environments – and, in turn, build stronger communities. You’ll work with teams of passionate colleagues, driven by a commitment to technical excellence and continuous learning.

As a company, we aim to build a world where communities go beyond resilience, embracing change as an opportunity to enhance safety, well‑being, and quality of life. Join us to accelerate this vision and your professional development.

We are looking to add new talent to our growing stormwater team! We are currently seeking a Senior Environmental Engineer or Scientist 1 to work in a technical field specialist role with highly skilled professionals on diverse project teams in a dynamic environment. This is an excellent opportunity to join a growing group and company and get involved in a variety of projects for a diverse range of clients.

Candidates must be able to be onsite at the primary project location in less than an hour due to site‑specific stormwater permit requirements. Relocation assistance is available, if needed. This particular requirement is not applicable to other field projects. During the stormwater season, the role is almost 100% field‑based, with early morning starts and on‑call requirements during rain events, including weekends and holidays.

Outside the rainy season, the split is approximately 50‑50 between field and office/reporting duties. The specialist will lead a field team conducting stormwater sampling, coordinate with contractors and laboratories, follow SOPs, and perform compliance inspections. They will also handle data analysis and contribute to reporting. This is a full‑time field position in Los Angeles County, in conjunction with our Costa Mesa, CA office.

• Provide a wide range of support for site‑specific environmental compliance related to stormwater quality management, construction and post‑construction BMPs, NPDES permitting, and California stormwater requirements.
• Leverage your understanding of applicable local, regional, state, and federal stormwater program guidance, policy, and regulations in California to align project scopes with client objectives and regulatory requirements to deliver superior client value.
• Prepare and/or review written communications and technical deliverables.
• Demonstrate and apply technical competence, knowledge of codes and regulations, and professional standard of practice to assigned tasks.
• Leverage understanding of technical scopes of work for assigned work and their alignment with overall project objectives to deliver quality assignments.
• Coach, mentor, and direct junior staff to ensure high‑quality execution of project tasks, including field activities and preparation of technical reports and deliverables, while facilitating knowledge transfer for team development.
• Use developing skills to be visible in your discipline by giving internal technical presentations and/or conference presentations and attending external networking events.
• Lead field programs for stormwater quality management, contaminated site investigation and management, and environmental protection‑related construction, maintenance and monitoring.
• Conduct permit reviews, perform site visits, and oversee inspection and sampling programs.
• Assist business development and proposal efforts; serve in a client service role.
• Plan and perform all work in accordance with company and client health and safety protocols.
• Demonstrate the company’s foundational safety behaviors.

• Bachelor’s degree in Environmental Science, Geology, Engineering, or related field.
• 6+ years of stormwater related experience in environmental consulting.
• Excellent written and verbal communication skills, including verbally communicating and presenting project information to clients and regulatory agencies.
• Desire to learn and grow in your profession, demonstrate a positive attitude, strong work ethic, resourcefulness, flexibility, and ownership.
• Working knowledge of regulatory frameworks that are pertinent to the work.
• During the stormwater season (October thru…