Senior Process Engineer

Ameresco

Senior Process Engineer responsible for optimizing gas processing plants managing quality and efficiency. Collaborating across engineering disciplines and ensuring safe, cost-efficient operations.

Posted 7/1/2026full-timeRemote • Wisconsin • 🇺🇸 United StatesSeniorWebsite

About the role

Key responsibilities & impact

Perform design calculations and prepare equipment specifications
Solicit bids from equipment suppliers and assist in procurement of mechanical equipment and instrumentation
Design LFGTE plants and high RNG facilities to include GA layout, PFD, PIDs, BOM, 2D bid drawings, routing/piping subsystem, and construction drawings
Plan, develop, direct, and coordinate gas processes
Evaluate technological needs and integrate them into gas processing plants
Stop or postpone gas processing if quality or regulatory concerns arise and coordinate resolution
Collaborate with personnel at gas processing plants to troubleshoot issues and develop maintenance practices
Conduct process and production failure investigations
Implement corrective actions and prepare reports to communicate problem/resolution/progress
Provide engineering support to operations (LFGTE and RNG plants) in design, instrumentation, and maintenance
Collaborate with all engineering disciplines and operations staff to understand processes and provide design input
Develop, evaluate, and improve gas processing methods
Modify processes to enhance safety, product quality, and cost efficiency
Create accurate P&ID drawings, BOMs, and other engineering documentation
Compile quality data, establish regular communication, and facilitate action plans for continuous improvement
Create project specifications along with Instrumentation specifications, MOC and SOPs
Analyze workforce utilization, space requirements, and workflow
Design layouts for equipment and workspace efficiency
Make decisions on proper equipment selection and application
Maintain knowledge of industry standards (ASME, AGA, API, AISC, OSHA, ASTM)
Collaborate with outside vendors, contractors, and design teams to meet project specifications and deadlines
Act as a mentor to Process Engineers within the Alternative Fuels business unit
Other duties as assigned

Requirements

What you’ll need

Bachelor’s degree in chemical engineering, process engineering or a related discipline
Minimum of seven (7) years related work experience in landfill gas to energy, high BTU/RNG, oil refinery, chemical process, and/or gas process
Professional Engineer (PE) License is preferred
Technical experience with gas processing using membrane, pressure swing adsorption, and solvent adsorption processes or gas compression equipment and/or flare and thermal oxidizers is desired
Ability to use AutoCAD for creating process block diagrams, P&IDs, and control philosophy for landfill gas to energy facilities (LFGTE) and renewable natural gas (RNG) facilities
Excellent written and oral communication skills
Strong organizational, problem-solving, and analytical skills
Versatility, flexibility, and a willingness to work within constantly changing priorities with enthusiasm.
Proficient with current Microsoft Office applications, specifically Word, Excel, PowerPoint, and Access
Working knowledge of data collection, data analysis, evaluation, and scientific methods

Benefits

Comp & perks

Comprehensive and competitive employee benefits
People-oriented insurance plans
Investment and incentive plans

ATS Keywords

✓ Tailor your resume

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools

Gas ProcessingProcess Design CalculationsEquipment SpecificationsData AnalysisProcess Failure InvestigationCorrective Action ImplementationGas Compression EquipmentMembrane TechnologyPressure Swing AdsorptionSolvent Adsorption

Soft Skills

Excellent Communication SkillsStrong Organizational SkillsProblem-Solving SkillsAnalytical SkillsFlexibility

Certifications

Professional Engineer (PE) License