Applications Engineer

LE002 Onterris Payroll, LLC; Portland (ME); On-site; USD 85,000 - 120,000; Full time

Job summary

Onterris is seeking a process engineer to join our growing team in Portland, ME. You will design treatment solutions, develop cost estimates, and collaborate with the BD and project delivery teams to translate client requests into feasible designs.

The role requires 5+ years of experience, MS Office proficiency, and strong communication. Travel is primarily domestic. The compensation range is $85,000–$120,000 plus an annual bonus, commensurate with experience.

Qualifications

• Bachelor’s degree in Chemical, Mechanical, Environmental, Process engineering or related field.
• 5+ years of related work experience.
• FE/EIT desired but not required.
• Must be proficient in MS Office products.
• Effective verbal and written communication skills.
• Self‑starter and good time management/prioritization.
• Ability to work effectively in a team and independently.
• Must possess a valid driver’s license.

Responsibilities

• Be an integral part of our safety culture and approach work with a safety-first attitude.
• Learn and understand Onterris’ highly technical product and demonstrate customer-focused problem solving.
• Collaborate with the Business Development team to evaluate requests and align design with strategy.
• Design treatment solutions using process engineering principles and Onterris tools.
• Select equipment and controls for the chosen process to meet targets.
• Coordinate with functional teams to prepare proposals and content for customers.
• Develop capital and operating cost estimates for proposals.
• Provide process engineering support and handover to delivery teams.
• Create proposal-level technical drawings (BFDs, PFDs, layouts).
• Conduct literature and web-based technical research.
• Assist with writing technical reports and project summaries.
• Travel domestically as needed to support business development or project delivery.
• Perform other duties as assigned.

Skills

Communication

Time management

Teamwork

Self-starter

Driver's license

Education

Bachelor’s degree in Chemical Engineering

FE/EIT desirable

Tools

MS Office

Job description

About Us At Onterris, we build careers grounded in purpose, responsibility and real-world impact. “For Planet and Progress” is our north star that guides everything we do. We believe environmental responsibility and human progress are interconnected, interwoven and international. Our scientists, engineers, field teams, consultants and professionals collaborate across disciplines and geographies, guiding industries and governments, ensuring that communities and environments thrive. When you join us, you’re not just forging a career, you’re joining a movement. A movement for better thinking, smarter solutions and lasting impact. Together, we will advance our way of life and protect the integrity of our environment every step of the way.

We’re looking for candidates based in: Portland, ME, Fuquay-Varina, NC, and Oconomowoc, WI.

The compensation range for this role is $85,000-$120,000, in addition to an annual bonus, commensurate with experience, skills, and geographic location.

A Day in the Life

• Be an integral part of our safety culture, approaching all aspects of work with a safety‐first attitude.
• Learn and understand the highly technical product that Onterris is delivering to our customers and demonstrate customer‑focus with creative problem‑solving skills.
• Work collaboratively with the Business Development team to evaluate the customer request and align the technical basis of design with the commercial strategy.
• Utilize process engineering principals and Onterris tools to design the treatment solution that meets or exceeds the customers effluent targets.
• Select equipment and controls necessary for the selected treatment process to allow it to function as intended.
• Consult with key functional teams and subject matter experts to confirm the process design and build the required content for customer proposals.
• Develop capital and operating cost estimates for proposals using internal tools and interacting with 3rd party suppliers.
• Provide process engineering support and lead the technical handover to the project delivery team.
• Create proposal level technical drawings – Block Flow Diagrams (BFDs), Process Flow Diagrams (PFDs), and layouts.
• Perform literature and web‑based technical research.
• Assist with writing technical reports including, but not limited to, the following: technical proposals, project summaries and pilot test summaries.
• Travels as needed, primarily domestically, to support either the business development or project team in customer discussions or the delivery of products.
• Perform other duties as assigned.

Your Expertise and Skills

• Bachelor’s degree in Chemical, Mechanical, Environmental, Process engineering or related field
• 5+ years of related work experience
• FE/EIT desired but not required
• Must be proficient in MS Office products
• Effective verbal and written communication skills
• Self‑starter and effective time management/prioritization skills
• Ability to work effectively both in a team and independently
• Must possess a valid driver's license
• Must have a reliable form of transportation to travel to job sites and the office

We are an equal opportunity employer and encourage applications from people of all backgrounds.

We acknowledge that these experiences and perspectives help to enrich our teams and contribute to our ongoing success.

We are committed to providing access and reasonable accommodation in our employment for all applicants. For US residents, click here to learn more.

At Onterris, we take on complex challenges with purpose and momentum, alongside teams that lead with integrity, deliver together, and invest in your growth.

Onterris is a leading global environmental solutions company partnering with organizations to solve complex challenges where environmental pressures, regulatory expectations and operational risks intersect. Guided by our mission to advance the way of life without compromising the integrity of our environment, we believe environmental responsibility and human progress are fundamentally connected. Our scientists, engineers, field teams and consultants apply systems thinking that unites science, data and practical expertise to deliver solutions that strengthen our clients’ resilience, mitigate risk and protect the air, water and soil that sustain communities, while uncovering responsible paths forward for planet and progress. For more information, visit www.onterris.com.

“Working with inspiring coworkers and clients across the globe over the past five years has been incredibly rewarding. Their passion motivates me to improve our client experience and work that I deliver.” - Erin Peck, Emissions Services

“There are not many places where a toxicologist can be boots‑on‑the‑ground at an environmental emergency one day and deep in a human health risk assessment or litigation the next, but this company is one of them, and honestly, that breadth is what makes me love the work. We are a team of scientists with a broad range of talents and experiences who genuinely take the mission to heart, because protecting people and communities from chemical hazards is not abstract here; it is exactly why we show up every day. The culture reflects that shared commitment in the best way: collaborative, rigorous, and truly motivated by the impact we make together.” - Andre Richardson, Consulting

“I knew my position here would be more than just a job. Every day is a new, exciting challenge to solve, and I get to go home knowing that the work I am doing is having a positive impact on the world.” - J Esteves, R&D