Sr. Process Engineer - Water Treatment
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First recorded by Psst: 12 October 2026. Your first 3 jobs are free to apply to (the first right away, 2 more with your email). After that, the company and the apply link are for Psst members, from $4.99 for 7 days.
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The 20-second read
- Experience
- 10+ years required
- Where you can live
- US only
- Skills and tools
- documentation, troubleshooting
- Degree or licence
- Mentioned (bachelor)
- Job type
- Full-time
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Job details
- Where you can work
- United States
- Employment type
- Full-time
- Advertised pay
- $115K–135K/yr
- Experience
- 10+ years required
- Employer publication date
- 24 September 2026
- First recorded by Psst
- 12 October 2026
- Last checked at the source
- 10 November 2026
About the job
Reporting to the Technical Director and serving as a member of the Technical Direction and Process Validation (TDPV) team, the Senior Process Engineer will collaborate with Process Engineers and Subject Matter Experts (SMEs) to evaluate potential projects and opportunities involving new construction, fleet-based solutions, and the utilization of existing customer assets.
Key responsibilities include preparing detailed process design calculations; developing and reviewing Process Flow Diagrams (PFDs) and Piping and Instrumentation Diagrams (P&IDs); providing technical guidance and support to Sales and Commercial Engineering teams; conducting site and field audits of existing plants to evaluate performance and troubleshoot operational issues; and providing operational safety input to field services, engineering, and design teams.
The Technical Direction and Process Validation team works with a wide range of water and wastewater treatment technologies, including clarification, media filtration, dissolved air flotation (DAF), ultrafiltration (UF), reverse osmosis (RO), remineralization, ion exchange (IX), electro-deionization (EDI), membrane bioreactors (MBR), degasification, adsorption, and solids dewatering systems.
Pure water applications include municipal and industrial water treatment for drinking water, boiler feedwater, process makeup water, desalination, and microelectronics manufacturing. The team also supports industrial wastewater treatment applications for discharge and reuse, cooling tower makeup and blowdown, food and beverage processing, semiconductor manufacturing, and municipal and industrial wastewater treatment.
Essential Responsibilities
- Coordinate with Sales and Commercial Engineering (CE) Teams to support opportunities including screening new opportunities during WIN reviews for regional and global projects
- Provide technical and process support to meet Sales and Commercial Engineering team’s respective needs. Represent the company at customer meetings from a process perspective to answer technical questions during bid discussions and project questions.
- Be responsible for the creation, development, and/or assessment of process design estimates and/or calculations, and block flow diagrams (BFD) and/or process flow diagrams (PFDs) for new and unique applications within the MWIS business, including but not limited to new greenfield projects, retrofit projects on existing sites, and upgrades to acquired assets.
- Prepare P-table (Process) documentation (feedwater design basis, mass balance, process design calculations, simulations, and projections, chemical injection rates and consumption, consumables, power consumption and redundancy and sparing strategies. This information is required to be prepared in advance and in preparation for detailed process review during a P-Table meeting.
- Participate in P-table (Process) reviews prior to proposal submission to ensure your proposed solution is capable of meeting and achieving the treatment system’s goals and product specifications over the entire duration of the contract.
- Participate in P-Table reviews of other SME team member’s projects as a peer reviewer, as required.
- For qualifying deals, meeting certain financial thresholds, prepare and submit P-table documentation to the Business Sustainability and Performance (BS&P) Technical Validation team to the company headquarters in Paris, France. Provide timely technical and process responses to the BS&P technical team as they complete their validation reviews.
- Coach and mentor other TDPV team members, sharing your expertise, knowledge, and background in your specific subject matter area of expertise to develop and elevate the entire team’s working knowledge
- Provide remote and/or sometimes on-site process training to field operations team members, helping them to understand a particular system’s design and how it is intended to operate and function.
- Support lifecycle cost analysis while comparing, and contrasting, different flowsheets to arrive at the best technical and economic solution
- Work with Sales and CE teams to apply process design strategies in order to position the company well in the early stages of project development, to increase the probability of success.
- Develop and maintain relationships with Regional Sales Managers and Local Representatives and other Commercial Engineering teams.
- Support new MWIS fleet asset development from a process and operational safety perspective
Why You’ll Love Working Here!
- In diversity lies strength - We strive to be a workplace that is inclusive and empowers
- people to contribute their best
- Recognition and rewards for your hard work and achievements
- Opportunity for new challenges - We are growing and love to promote from within
- An excellent leadership team and a collaborative culture that values innovation
- At all levels of the organization, we recognize talent and want to help you build your
- sustainable career!
Qualifications/Requirements
- Bachelor’s degree (or equivalent) in an Engineering discipline. Mechanical, Chemical, or Environmental Engineering is preferred.
- Minimum of 10 years’ experience in water & wastewater process engineering or equipment supply field, preferably with 3 -5 years of hands-on working knowledge on process equipment or in a water treatment plant environment.
- Minimum of 10 years’ experience in detailed process design and the ability to read and understand proposal documents and specifications, both from a technical and commercial perspective.
- Ability to work independently for long periods.
- Self-motivated, quick to deliver and a team player.
- Demonstrated dedication to safety.
- Effective troubleshooting and problem-solving skills.
- An accomplished communicator, able to produce quality technical and review documents as well as guide colleagues through technical reports and techno-economic case studies.
At the company Group, we realize diverse teams make smarter decisions, deliver better results, and build stronger communities. We’re an organization that champions diversity and inclusion at every rung of the ladder and are proud to be an equal opportunity workplace. Because our people are our greatest assets, we also offer competitive compensation and benefits that include:
Compensation - The salary range is tied to the market for similarly benchmarked roles. The range is not an absolute, but a guide, and offers will be based on the individual candidate’s knowledge, skills, experience, and market conditions, as well as internal peer equity. Depending upon all the preceding considerations for the final selected individual candidate, the offer may be lower or higher than the stated range: $115,000-135,000 USD. annually.
- Medical, Dental, & Vision Insurance Starting Day 1!
- Life Insurance
- Paid Time Off
- Paid Holidays
- Parental Leave
- 401(k) Plan
- Flexible Spending & Health Saving Accounts
- AD&D Insurance
- Disability Insurance
- Tuition Reimbursement
Disclaimer: The salary, other compensation, and benefits information is accurate as of the date
of this posting. The Company reserves the right to modify this information at any time, subject
to applicable law.
****Applicants are required to be eligible to lawfully work in the U.S. immediately; employer
will not sponsor applicants for U.S. work authorization (e.g. H-1B visa) for this
opportunity****
The company Group does not accept unsolicited resumes from external recruiting firms. All vendors must have a current and fully executed MSA on file before submitting candidates. Any unsolicited resumes and candidate profiles will be deemed the property of the company Group, and no fee will be due.
As an inclusive company, the company is committed to diversity and gives equal consideration to all applications, without discrimination.
As an inclusive company, the company is committed to diversity and gives equal consideration to all applications, without discrimination.
The company Group is a global leader in environmental services, operating across all five continents with nearly 218,000 employees. Specializing in water, energy, and waste management, the company Group designs and implements innovative solutions for decarbonization, depollution, and resource regeneration, supporting communities and industries in their ecological transformation.
Within this framework, the company's Water Technology Business brings together a dedicated team of experienced professionals committed to tackling the world’s most complex challenges related to water scarcity, quality, productivity, and energy. Together, we pursue a shared mission to create a more sustainable future.
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