Certified Industrial Hygienist; CIH Senior Project Manager

Overview

At Weston Solutions, Inc. you will do meaningful work and make valuable contributions. Employee-ownership at Weston is a path to professional growth and access to diverse opportunities in a highly connected community that works together across key service areas to make a difference in the environment. Weston continues to evolve and adapt to our changing world as a premier provider of environmental and infrastructure services for over sixty years.

In both the public and private sectors our teams help identify, solve, mitigate, and manage critical environmental issues to help clients achieve a more sustainable future.

The CIH Senior Project Manager leads complex Industrial Hygiene (IH) consulting projects with evolving scopes and multiple stakeholders. This role combines advanced IH technical expertise with senior-level project leadership, operating as a seller-doer responsible for client engagement, project execution, financial performance, and development of emerging PM and IH talent. The CIH Senior PM builds trust across client organizations, WESTON leadership, subcontractors, and project teams while contributing to WESTON's PM community and technical excellence.

Bay Area, CA;
Orange County, CA

• Builds and executes stakeholder engagement plans; aligns expectations across diverse internal and external stakeholders.
• Leads multidisciplinary teams, sets project vision, fosters collaboration, and resolves conflict.
• Manages complex IH projects involving multiple subcontractors, changing conditions, and competing priorities.
• Achieves financial performance targets including NIBT, margins, and DSO; ensures timely and accurate invoicing and A/R oversight.
• Ensures project quality and health & safety performance with zero accidents.
• Supports business development, including proposals, cost estimating, and identifying value creation opportunities.
• Procur es follow-on work and strengthens client relationships.
• Mentors and develops junior and mid-level staff; identifies emerging PM talent and contributes to WESTON's PM community.

• Lead advanced IH assessments including sampling strategies, exposure evaluations, air/noise monitoring, IAQ assessments, and complex hazard evaluations.
• Perform and oversee qualitative and quantitative fit testing and IH program implementation.
• Serve as senior technical reviewer; ensure accuracy, regulatory compliance, and high-quality deliverables.
• Conduct EHS/IH audits and provide expert regulatory guidance.
• Produce clear and comprehensive technical reports for client and regulatory audiences.
• Maintain active professional engagement and stay current with IH standards and best practices.

• Assemble, lead, and develop cross-functional project teams.
• Manage scope, schedule, budget, risk, and change on complex IH projects.
• Anticipate changing project conditions and implement corrective actions.
• Communicate proactively with clients and stakeholders regarding project status and decisions.
• Ensure compliance with WESTON purchasing, subcontracting, quality, and H&S requirements.
• Partner with project support specialists for smooth project execution.

• Build and maintain trusted client relationships at multiple organizational levels.
• Contribute to proposals, pricing strategies, and capture planning as a seller-doer.
• Identify opportunities for follow-on work and expanded service offerings.
• Represent WESTON through professional involvement and technical leadership.
• Mentor and supervise IH staff and emerging PMs; provide coaching and performance feedback.

• Certified Industrial Hygienist (CIH).
• Bachelor's degree in IH, Public Health, Occupational Health & Safety, Environmental Health, or related discipline.
• 10+ years of project management experience leading complex, multi-stakeholder projects.
• 7+ years of IH/EHS experience (advanced degrees may reduce years).
• Expertise in IH sampling, exposure assessment, IAQ, noise monitoring, and hazard evaluations.
• Strong regulatory knowledge and capability to serve as qualified technical reviewer.
• Demonstrated…