Senior Industrial Hygienist

Primary Clients: Industrial, manufacturing, and commercial clients (excludes pharma manufacturing)

Reports to: Regional Manager of IH Services

Hybrid: Sits at local Trinity Office in the Continental U.S., commensurate with experience

Travel: Average 40% (variable based on client schedules)

Schedule: Full-time

You will be a resource to Trinity’s environmental consulting teams in scoping and executing our growing number of industrial hygiene projects. This role combines hands‑on technical work (field assessments, exposure monitoring, physical agent evaluations (PAE), and ventilation and control evaluations) with client service, proposal generation, and project management responsibilities.

• Technical Leadership
• Serve as a technical resource on complex industrial hygiene projects, providing guidance on exposure assessment strategies, control recommendations, and regulatory compliance
• Lead and supervise consulting field staff during IH monitoring activities, ensuring quality control, proper sampling protocols, and adherence to OSHA, NIOSH, and AIHA standards
• Develop and review sampling and analytical plans, monitoring strategies, and technical reports for a wide range of workplace health hazards including chemical, physical, and biological agents
• Interpret and communicate complex IH data findings to both technical and non-technical audiences
• Stay current with evolving IH regulations, guidelines, and best practices and serve as an internal resource for staff development
• Client Engagement and Project Delivery
• Manage multiple concurrent IH projects from scope development through final deliverable, ensuring on-time and on-budget performance
• Respond to Requests for Proposals (RFPs), developing technically sound and competitively priced scopes of work
• Serve as primary client contact for assigned accounts, building long-term relationships through responsive communication and high-quality work products
• Conduct field work across a variety of industrial settings including manufacturing, chemical processing, construction, and utilities
• Coordinate with subcontractors, laboratories, and internal teams to ensure seamless project execution
• Business Development
• Identify and pursue new business opportunities through proactive outreach, networking, and relationship-building with existing and prospective clients
• Respond to client inquiries and develop tailored proposals that clearly articulate the firm’s IH capabilities and value
• Represent the firm at industry conferences, trade shows, and professional association events, including delivering technical presentations
• Participate in delivering training courses and workshops on IH topics for clients, industry groups, and professional associations
• Collaborate with Trinity offices to develop marketing materials, capability statements, and targeted local business development strategies
• Build an internal network and work closely with the Trinity offices around the US to identify and service customers with IH needs

• Education: B.S. in Industrial Hygiene, Environmental Health, Occupational Safety, Science, Engineering, or related field
• Experience: Minimum 5 years of cumulative IH experience with demonstrated technical depth; experience in a consulting environment and with supervising a technical team preferred
• Proficiency with direct-reading instruments, personal air sampling equipment, noise dosimetry, and other standard IH monitoring tools
• Understanding of industrial ventilation and engineering control evaluation
• Knowledge of PPE / RPE evaluation and respiratory protection programs
• Expertise in sampling program development and qualitative exposure assessment methods
• Understanding of AIHA exposure assessment strategies and IH statistics
• Familiarity with jurisdictional regulatory frameworks (OSHA, MSHA, Cal/OSHA, HSE, etc.)
• Skills: Professional written and oral communication; proven client-facing skills; competency with Microsoft Office/365; familiarity with statistical and data analysis tools preferred
• Other: Ability to travel to client sites and lead field teams; ability to lift and carry up to 35 pounds of equipment; ability to work independently and manage time effectively; U.S. work authorization required

• Passion for protecting worker health through practical, science-based solutions
• Demonstrated success supporting technical teams
• Experience with proposal development, budgeting, and project financial oversight
• Strong judgment, discretion with confidential information, and a…