Wastewater Process Engineer

ARCO/Murray; Chicago (IL); On-site; USD 90,000 - 120,000; Full time

Benefits offered by this job

Bonus program

ESOP

401(k) plan

Medical, dental, and vision insurance

HSA/FSA options

Paid parental leave

Tuition reimbursement

Scholarships per child

Charitable match

Inclusive culture

Job summary

ARCO/Murray, in collaboration with BlueWTR, is seeking a Process Engineer to support process design and technical delivery on water and wastewater projects across industries in the United States. You will contribute from basis-of-design through commissioning within a design-build setup backed by ARCO/Murray’s national platform.

The role requires 3+ years in water/wastewater engineering, experience with PFDs/P&IDs and mass balances, and strong communication skills to engage clients and vendors.

Qualifications

• 3+ years in water/wastewater process engineering or related role.
• Experience developing or supporting PFDs, P&IDs, hydraulic calculations, mass balances, equipment sizing, and basis-of-design docs.
• Experience with membrane systems (UF/NF/RO), biological, chemical treatment, filtration, or solids handling.
• Strong written and verbal communication; comfortable with client, vendor, and internal discussions.
• Understanding of project cost, schedule, constructability, and how process design affects delivery.
• BS in Chemical, Environmental, or related engineering discipline.

Responsibilities

• Support process design on industrial water and wastewater projects through commissioning.
• Develop basis-of-design content, mass balances, hydraulic calculations, PFDs, P&IDs, equipment layouts, and data sheets.
• Participate in technical discussions with clients, vendors, and design-build partners; document decisions.

Skills

Water/wastewater process engineering

PFDs & P&IDs

Mass balances

Equipment sizing

Basis-of-design

Client & vendor discussions

Education

BS in Chemical, Environmental, or related engineering

Tools

PLC/SCADA architecture

Job description

About You

BlueWTR is hiring a Process Engineer to support process design and technical delivery on industrial water and wastewater projects across hyperscale data center, RNG/biogas, semiconductor, advanced manufacturing, and food & beverage markets. You'll contribute from basis-of-design through commissioning on projects ranging from greenfield UPW systems to multi-hundred-MW cooling and reuse infrastructure, working inside a design-build structure with the full backing of ARCO/Murray's national platform.

Job Details

• Location: Denver or Chicago
• Travel: 20% domestically

A Day In The Life

• Support process design on industrial water and wastewater projects, including membrane (UF/NF/RO), biological, chemical, solids handling, and reuse systems, from early design through commissioning.
• Develop basis-of-design content, mass balances, hydraulic calculations, PFDs, P&IDs, equipment layouts, equipment data sheets, and control narratives with review from senior process engineers.
• Participate in technical discussions with clients, consulting engineers, OEMs, and design-build partners; document decisions and translate process requirements into executable scope.
• Support equipment sizing and selection, OEM evaluations, technical bid reviews, procurement, and submittal reviews.
• Support startup, commissioning, troubleshooting, and optimization in coordination with senior process engineers, controls integrators, OEMs, and field teams.
• Coordinate with project managers, designers, and field teams to maintain technical quality, schedule, constructability, and clear documentation.
• Support proposals, project scoping, vendor outreach, technical research, and business development efforts for new pursuits.

Necessary Qualifications

• 3+ years in water/wastewater process engineering, industrial process design, consulting, design-build, EPC, or a closely related technical role.
• Experience developing or supporting PFDs, P&IDs, hydraulic calculations, mass balances, equipment sizing, and basis-of-design documentation.
• Working experience with one or more industrial water/wastewater treatment technologies such as membrane systems (UF/NF/RO), biological treatment, chemical treatment, filtration, or solids handling.
• Strong written and verbal communication skills; comfortable participating in client, vendor, and internal technical discussions.
• Understanding of project cost, schedule, constructability, and how process design decisions affect project delivery.
• BS in Chemical, Environmental, or related engineering discipline.

Preferred Qualifications

• EIT certification or progress toward professional license.
• Direct project experience in hyperscale data center cooling, RNG/biogas, semiconductor UPW, or food & beverage process water.
• Working knowledge of industrial controls, PLC/SCADA architecture, instrumentation, and process automation handoffs.
• NPDES permitting and industrial discharge compliance experience.
• Field, startup, commissioning, or equipment vendor experience.

What We Can Offer You

• Industry-leading performance-based bonus program
• Employee Stock Ownership Plan (ESOP)
• Traditional and Roth 401(k)
• Comprehensive medical, dental, and vision insurance
• HSA and FSA options
• Paid parental leave
• Paid sabbatical and volunteer leave
• Tuition reimbursement
• Up to $28,000 in scholarships per child
• 100% charitable match
• Inclusive, ownership-driven workplace culture

MAKE YOUR MOVE

We are proud to be one of the fastest-growing, privately-owned companies in America, celebrating over 30 years of experience as design-build experts. We have completed over 7,500 design-build projects nationwide. We ranked #9 on ENR’s Design-Build Firms list and #34 on ENR's Top 400 Contractors list of 2026. Most importantly, our clients like us, trust us, and want to do business with us. We are looking for people with the same enthusiasm, passion, and respect for the hard work that brought us to where we are today. Are you a person who can make a difference at ARCO? If the answer is “Yes!” we look forward to meeting you.

EOE, including disability/vets