Senior Wastewater Process Engineer

Senior Wastewater Process Engineer

Date:
Feb 21, 2026

Location:

Seattle, WA, US

Company:
Black & Veatch Family of Companies

Together, we own our company, our future, and our shared success.

As an employee-owned company, our people are Black & Veatch. We put them at the center of everything we do and empower them to grow and solve humanity's biggest challenges in an evolving world. With over 100 years of innovation in sustainable infrastructure, we provide engineering, procurement, consulting and construction expertise to build a world of difference.

Company : Black & Veatch Corporation

Opportunity Type : Staff

Project Only Hire : No

In this role, you will have the opportunity to:

• Function in a lead wastewater process engineer role as a technical specialist in conventional wastewater treatment
• Use processes such as physical/chemical primary treatment, conventional activated sludge, biological nutrient removal, fixed-film processes, membrane bio-reactors (M ), sidestream treatment, tertiary filtration, and disinfection
• Provide technical guidance over a process team, supervise engineering staff on projects, and collaborate with multi-disciplinary design teams to implement complex treatment solutions

Black & Veatch Process Engineers develop technical solutions for critical infrastructure projects. Our team supports water, industrial, and energy-transition projects, focusing on megatrends such as water scarcity, alternative fuels, and sustainability. We aim to modernize infrastructure, optimize asset use, reduce cost, and mitigate risk.

Why BV’s Process Engineering Team?

• Meaningful and rewarding work
• Supportive professionals
• Career opportunities in expanding business solutions

• Prepare complex engineering deliverables including process models, mass balance calculations, design criteria/basis of design memoranda, process flow diagrams, P&IDs, tradeoff studies, and master planning studies
• Support multiple projects with complex technical challenges
• Serve as a technical specialist guiding project teams in conventional and/or emerging wastewater treatment systems
• Perform complex research (bench, pilot, full-scale) to assess treatment performance and incorporate data into process models
• Develop recommendations for appropriate treatment processes, equipment, and materials selection
• Oversee data collection, assimilation, analysis, and management for process modeling; prepare models and perform engineering calculations

• Identify key client interests and drivers for ongoing projects and new business prospects
• Communicate client interests to project teams and develop solutions aligned with client goals
• Support business development, proposal development, client interviews, and winning messages
• Present on wastewater treatment projects and thought leadership at venues and conferences

• Mentor junior engineers and foster knowledge sharing
• Support performance management, coaching, and career development
• Provide guidance on design guides, standards, and engineering codes
• Assist in developing and updating engineering standards and provide technical guidance on projects

• Apply knowledge and comply with quality programs
• Support continuous improvement and change management
• Coordinate with internal/external team members on moderately complex projects

• Implement resource management strategies
• Manage engineering resources for small groups

• Ensure policies and processes are implemented and communicated for work groups
• Ensure adherence to corporate programs
• May approve expense reports

• Advanced degree (Master’s or Doctoral) in civil, environmental, or chemical engineering preferred
• 10 years of wastewater treatment experience with at least 5 years in water quality and treatment
• Advanced knowledge of process design for municipal wastewater treatment; familiarity with design guides and standards
• Experience with process simulators such as Bio Win, GPS-X, Sumo, and/or Simba
• Established leadership with consulting, project execution, client services, and business development
• Strong written and oral communication skills…