[İş Radarı](https://jobradar.live/) / [Jobs](https://jobradar.live/ilanlar) / Senior Mechanical Design Engineer Active On-site Peoria, Illinois Posted · 20.09.2026 Greenhouse (US) # Senior Mechanical Design Engineer Rheo Engineering Senior Mechanical Design Engineer  Application Engineering | Peoria, IL (In-Person) | Full-Time | Relocation Assistance Provided Compensation: $95,000 – $145,000  Every project is different. Every customer has a problem nobody has solved quite this way before. If that excites you more than running the same product through the same process, keep reading.  Rheo Engineering designs and manufactures advanced powder handling equipment and integrated systems for the pharmaceutical industry. Our equipment is used in the direct manufacture of life-saving medicine around the world. We design and build everything on-site, from highly engineered containment systems to fully automated material handling lines. You’ll see your designs go from a model on your screen to a finished system on our shop floor.  We run two engineering teams: New Product Development builds and maintains Rheo’s standard product lines, while Application Engineering — the team this role sits on — works directly with our project management team and customers to turn unique requirements into custom-engineered solutions, often under tight deadlines and real constraints. If you thrive on variety and solving problems, this is the team for you.  We’re looking for a Senior Design Engineer who wants to own the technical quality of that work in a technical leadership role. You will have the opportunity to shape the Design framework and trajectory of our Application Engineering team and be a critical part of developing and mentoring Design Engineers. You’ll be looked up to and relied on throughout the team for the influence and expertise you bring.  What You’ll Do  Lead the technical execution of custom equipment projects — CAD modeling in Autodesk Inventor, design reviews, engineering calculations, and FEA  Own the quality of engineering deliverables across your projects, including drawings, customer submittals, and documentation  Manage the engineering change process: triage ECRs, review and close out ECOs, and maintain basis of design documentation  Mentor Design Engineers through hands-on guidance, model reviews, and constructive feedback that builds real capability  Collaborate across functions — fabrication, assembly, controls, manufacturing engineering, and purchasing — to keep designs producible and projects on track  Serve as a primary technical contact for customers: lead design reviews, prepare approval submittals, and communicate directly on technical matters  Source and qualify vendors, review vendor drawings, and conduct technical evaluations  Support Factory Acceptance Tests (internal and external), system integration, quality activities, and commissioning  Generate engineering standards, design calculators, and administer the CAD environment  What We’re Looking For  Significant professional experience in mechanical design engineering with demonstrated ownership of complex assembly design work from concept through release  Proficiency in Autodesk Inventor or equivalent 3D CAD  Proficiency in Microsoft 365 (Word, Excel, PowerPoint, Outlook, Teams)  Experience with FEA software tools  Proven track record of producing and reviewing engineering drawings, models, and calculations to a high standard of quality  Experience leading design reviews and managing engineering change processes (ECR/ECO)  Track record of mentoring other engineers and elevating team capability  Direct experience interfacing with customers on technical matters  Bachelor’s Degree in Mechanical Engineering or a related discipline  Preferred Qualifications  PE license or active progress toward licensure  Experience in pharmaceutical, food processing, or other regulated manufacturing environments  Familiarity with powder handling or process equipment design  Knowledge of GMP, cleanability (CIP/WIP), process containment, or OEL/OEB requirements  Familiarity with project management practices and tools  Working knowledge of ASME codes, GD&T (ASME Y14.5), and fabrication processes  Why Rheo  Privately owned and operated for 30 years and counting  Excellent benefits – see section below  Smaller team (~100 team members) with a strong, in-person work culture  Quickly growing in a stable, regulated industry where precision engineering matters  Unique, impactful work – direct influence over the safe, reliable, and efficient production of medicine throughout the world  Vertically integrated – see what you design be built in the same building   Benefits  Leading medical insurance — consistently low rates compared to other businesses in the area  Health Savings Account with employer contributions (plan-dependent)  Dental, vision, and life insurance  Short-term and long-term disability  Identity theft insurance  401(k) with 4% employer match  Generous PTO  Paid paternity and maternity leave  Paid cell phone plan with stipend for a new phone every 2 years  Employee referral program  Working Conditions  Office-based with regular time on the manufacturing floor and at vendor and client sites. Travel up to approximately 10% of the time. Standard 8-hour workday; occasional overtime as needed.    Rheo Engineering is an equal opportunity employer.  This job was verified from Greenhouse (US). Applications are completed on the original source. [Apply on the original listing ↗](https://jobradar.live/ilan/9168028b-ab9d-498d-aad9-65b39f80e088/git) ## Stop searching one by one for roles like this. Upload your resume or enter your target roles to see your first 3 matches for free. [Find jobs for me →](https://jobradar.live/uye/kayit) Your resume is never shared with employers; it is processed only for matching. Something wrong with this job?