Senior Composites Design Engineer

Infiltrator Water Technologies LLC; Sutherlin (OR); On-site; USD 120,000 - 160,000; Full time

Job summary

Infiltrator Water Technologies LLC is seeking a Senior Composites Design Engineer for the Sutherlin, OR area. The role focuses on FRP composite product design for infrastructure, including tanks and covers, using RTM and vacuum infusion processes.

Required to lead design efforts, apply relevant codes (IBC, ASCE, AASHTO, ASTM), and perform structural analysis and testing. Travel to sites and events may be necessary; 5+ years in composites preferred with strong CAD/FEA skills.

Qualifications

• Minimum 5 years’ experience in composite product design; 10+ preferred.

Responsibilities

• Lead the design and development of FRP composite products for infrastructure apps.
• Collaborate with the Composite Sales Manager to tailor design solutions for customer projects.
• Identify new product development opportunities and cultivate OEM relationships.
• Drive value engineering to improve design efficiency and reduce cost.
• Oversee manufacturing processes, especially closed molding (RTM, vacuum infusion).
• Assist material selection: resins, reinforcements, cores, adhesives, coatings.
• Apply relevant codes/standards (IBC, AASHTO, ASCE, ASTM) for structural designs.
• Perform structural analysis and guide product testing/validation.
• Transition knowledge with retiring engineer to ensure continuity.
• Support cross-functional teams: production, QA/QC, sales, PM.
• Interface with customers, certification agencies, and third-party engineers.

Skills

Composite design

FRP materials

RTM process

Vacuum infusion

Structural analysis

3D CAD

SolidWorks

FEA tools

Codes & standards

Travel readiness

Education

Bachelor's degree in engineering

Tools

SolidWorks

Inventor

ANSYS

SolidWorks Simulation

Job description

Infiltrator Water Technologies LLC

Infiltrator Water Technologies LLC is proud to be an equal opportunity employer, and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability status, protected veteran status, or any other characteristic protected by law.

Senior Composites Design Engineer

US-OR-Sutherlin

Job ID

2026-22300

Type

Regular Full-Time

# of Openings

1

Category

Engineering

Orenco - Sutherlin

Overview

Headquartered in Old Saybrook, CT, Infiltrator Water Technologies is the leading provider of engineered plastic chambers, synthetic aggregates, tanks, advanced wastewater treatment systems, and accessories for the onsite/decentralized wastewater and storm water management industries. The majority of Infiltrator products are manufactured from recycled plastic. Founded in 1987, we operate throughout the US and Canada with 8 manufacturing plants in the US, dedicated sales, and corporate team members. Infiltrator is a pioneer in innovative plastic technologies for underground water management. Infiltrator components are used in most onsite septic systems installed in the United States and Canada. Infiltrator is a proud Corporate Partner of Habitat for Humanity and each year donates components for 50 septic systems serving Habitat homes in North America.Infiltrator is committed to advancing the state of the art in all fronts, including product design, manufacturing, materials, wastewater science, marketing, management, and employee development. In other words, we strive to be the best we can be.

Responsibilities

GENERAL POSITION SUMMARY:

The Senior Composite Design Engineer will lead the development and design of FRP (fiber-reinforced polymer composite products for infrastructure applications. This engineer leader will utilize their strong background in composite materials and processes, particularly in closed molding methods such as RTM (Resin Transfer Molding) and vacuum infusion, structural engineering capabilities and knowledge of infrastructure and related codes to develop infrastructure products like tanks, buildings, covers and other structural components.

ESSENTIAL FUNCTIONS and KRA (Key Result Areas):

• Safety/Culture
• Continuously maintains Orenco management’s safety, cultural, and professional standards.
• Promotes, encourages, and reinforces a positive safety culture, safe practices, and a safe work environment to all employees.

• Key Responsibilities:
• Lead the design and development of FRP composite products for infrastructure applications.
• Collaborate with the Composite Sales Manager to develop tailored design solutions for customer projects.
• Collaborate with the Composite Sales Manager to identify new product development opportunities and cultivate strategic OEM (Original Equipment Manufacturing) relationships that drive innovation and long‑term business growth.
• Drive value engineering initiatives to enhance design efficiency and reduce cost.
• Oversee and optimize manufacturing processes, especially closed molding techniques (RTM, vacuum infusion).
• Collaborate on material selection, including resins, reinforcements, core materials, adhesives, and coatings.
• Interpret and apply relevant codes and standards (e.g., IBC (International Building Code), AASHTO (American Association of State Highway and Transportation Officials), ASCE (American Society of Civil Engineers), ASTM (American Society for Testing and Materials), etc.) to ensure code compliance in structural designs.
• Perform structural analysis and guide product testing and validation.
• Work closely with the retiring engineer through a transition period to absorb institutional knowledge, processes, and legacy designs.
• Support cross‑functional teams including production, QA/QC (Quality Assurance/Quality Control), sales, and product and project management.
• Interface with customers, certification agencies, and third‑party engineers as needed.
• Represent the company at key composite industry events (e.g., trade shows, technical conferences) to stay current with industry trends and strengthen professional networks.

• Regular, consistent, and predictable attendance is required.
• Performs other duties as assigned.

EDUCATION:

Bachelor’s degree in Mechanical Engineering, Civil Engineering, Structural Engineering, Materials Science, or related field.

KNOWLEDGE/SKILLS/EXPERIENCE:

• Minimum 5 years’ experience in composite product design ( 10 + years preferred).
• Expertise in closed‑mold composite processes
• Strong structural engineering capabilities and working knowledge of composite materials – resins, fibers, cores, adhesives, etc.
• Familiarity with infrastructure products and relevant codes and standards for infrastructure (IBC, ACI (American Concrete Institute), AISC (American Institute of Steel Construction), ASCE, AASHTO, ASTM).
• Proficiency in 3D modeling CAD (Computer‑aided design) (e.g., SolidWorks, Inventor, etc.). SolidWorks preferred.
• Proficiency in structural analysis tools desired, but not required (e.g., FEA (Finite Element Analysis) software like ANSYS (Engineering Simulation Software), SolidWorks Simulation, or similar).
• PE (Professional Engineer) license is highly beneficial but not required.
• Demonstrated ability to work independently and collaboratively in a multidisciplinary environment.
• Excellent communication skills and documentation practices.
• Ability to be flexible and change priorities with little notice.
• Ability to use sound judgement and follow through in problem solving and decision‑making processes.
• Must be willing and able to travel. Must be able to comply with current travel regulations and guidelines of airlines and destination locations.
• Must be able to meet and maintain Orenco’s approved driver criteria; a valid driver’s license, satisfactory driving record, current insurance on personal vehicle, and meet company insurability requirements.

#HP

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EEO Statement

ADS supports an inclusive workplace that values diversity of thought, experience, and background. We celebrate the power of our differences to create better solutions for our customers by ensuring employees can be their authentic selves each day. ADS is an Equal Opportunity/Affirmative Action employer. All qualified applicants will receive consideration for employment without regard to race, religion, color, national origin, ancestry, age, physical or mental disability, sex, sexual orientation, gender identity/expression, pregnancy, veteran status, marital status, creed, status with regard to public assistance, genetic status or any other status protected by federal, state or local law.

Equal employment opportunity, including veterans and individuals with disabilities.

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