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Senior Process Engineer Jobs in Peoria, IL (NOW HIRING)

RFA Engineering

Senior Electrical Engineer

Chillicothe, IL · On-site

$90K - $120K/yr

... processes. This position will operate onsite at our customer's world-class engineering and ... Senior Electrical Engineer - Power Electronics The selected candidate will support the development ...

Cintal, Inc.

Process Control Engineer 2

Chillicothe, IL · On-site

$82 - $87/hr

Interpret engineering drawings, schematic diagrams, or formulas and confer with management or engineering staff to determine quality and reliability standards. * Read worker logs, product processing ...

Caterpillar

Senior Hydraulics Engineer

Peoria, IL · On-site

$102K - $140K/yr

Caterpillar's Earth Moving Division is hiring for Sr. Hydraulics Engineer in Peoria, IL! Role ... Support Advanced Product Quality Planning (APQP) process activities to ensure components are ...

Leviton

Sr. Supplier Quality Engineer

Washington, IL · On-site

$120 - $135/hr

About the role The Senior Supplier Quality Engineer is responsible for ensuring the quality and ... Evaluate supplier quality systems, manufacturing processes, and production performance through on ...

Komatsu

Senior Engineer - Hydraulics

Peoria, IL · On-site

$115K - $135K/yr

Senior Engineer - Hydraulics Posting Start Date: 8/4/26 Job Location (Short): Peoria, Illinois, USA ... Develop and support improvements to streamline engineering processes used to design, develop ...

MyGradJob

SENIOR CHEMIST/SCIENTIST

Mapleton, IL · On-site

The Senior Chemist will be responsible for developing, scaling up, transferring, and improving ... while applying process engineering principles and experience. RESPONSIBILITIES * Technical ...

Caterpillar Brazil

Senior Data Engineer

Peoria, IL · On-site

$112.71 - $183.14/hr

As a Senior Data Engineer on the Helios Data Engineering team, you will be responsible for ... Knowledge of the decision-making process and associated tools and techniques; ability to accurately ...

New

Caterpillar Brazil

Senior Design Engineer

Peoria, IL · On-site

$113 - $169/hr

... Senior Design Engineer) to help drive innovation of our products globally. This role requires ... L6 Subject Matter Expert for MWL current production product and processes. * Collaborate and lead ...

Generac

Senior Customer Quality Engineer

East Peoria, IL

$86K - $117K/yr

The Senior Customer Quality Engineer collaborates with cross-functional teams to keep product ... Develop processes internally to meet customer requirements * Lead resolution of warranty and ...

Caterpillar

Senior Design Engineer

Peoria, IL · On-site

$112K - $169K/yr

... Senior Design Engineer ) to help drive innovation of our products globally. This role requires ... L6 Subject Matter Expert for MWL current production product and processes * Collaborate and lead ...

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Showing results 21-40

All JobsProcess Engineer JobsSenior Process Engineer JobsSenior Process Engineer Jobs in Peoria, IL

Senior Process Engineer information

See Peoria, IL salary details

$73.6K

$118.8K

$167.3K

How much do senior process engineer jobs pay per year?

As of Sep 3, 2026, the average yearly pay for senior process engineer in Peoria, IL is $118,837.00, according to ZipRecruiter salary data. Most workers in this role earn between $102,000.00 and $132,000.00 per year, depending on experience, location, and employer.

What does a senior process engineer do?

A Senior Process Engineer is responsible for designing, optimizing, and overseeing processes within manufacturing or production environments. They analyze workflows, troubleshoot issues, and implement improvements to increase efficiency, safety, and product quality. Senior Process Engineers often lead projects, mentor junior engineers, and collaborate with cross-functional teams to ensure operational excellence. Their expertise is vital in industries like chemicals, pharmaceuticals, oil and gas, and food processing.

What are the key skills and qualifications needed to thrive as a senior process engineer?

To thrive as a Senior Process Engineer, you need a strong background in chemical or process engineering, problem-solving skills, and typically a bachelor's or master's degree in a relevant field. Expertise in process simulation software (such as Aspen Plus or HYSYS), Six Sigma or Lean certifications, and familiarity with process control systems are highly valued. Outstanding analytical abilities, leadership, and effective communication set top performers apart in this role. These skills and qualifications are crucial for optimizing processes, ensuring safety and compliance, and leading teams to achieve operational excellence.

What are some common challenges senior process engineers face when working on cross-functional teams?

Senior Process Engineers often collaborate with professionals from various departments, such as operations, quality, and maintenance. A common challenge is aligning diverse priorities and communication styles to achieve shared project goals. Successfully managing these differences requires strong interpersonal and project management skills, as well as the ability to translate technical concepts for non-engineering colleagues. Regular meetings and clear documentation can help ensure everyone stays informed and engaged throughout the process.

What is the difference between Senior Process Engineer vs Process Engineer?

AspectSenior Process EngineerProcess Engineer
QualificationsBachelor's or Master's in Engineering, often with 5+ years experienceBachelor's degree in Engineering or related field, typically 1-3 years experience
ResponsibilitiesLeading process improvements, mentoring, project managementSupporting process development, data analysis, assisting senior staff
Work EnvironmentDesign teams, manufacturing plants, R&D departmentsManufacturing facilities, engineering teams, operational support

Senior Process Engineers typically have more experience, leadership duties, and oversee complex projects, while Process Engineers focus on supporting process development and implementation. Both roles are essential in manufacturing and engineering industries, but the senior role involves greater responsibility and strategic planning.

How much does a senior process engineer earn?

A senior process engineer typically earns between $80,000 and $130,000 annually, depending on experience, industry, and location. They often have specialized skills in process optimization, project management, and may hold certifications like Six Sigma or PE licensure.

What are popular job titles related to Senior Process Engineer jobs in Peoria, IL?

For Senior Process Engineer jobs in Peoria, IL, the most frequently searched job titles are:

What cities near Peoria, IL are hiring for Senior Process Engineer jobs?

Cities near Peoria, IL with the most Senior Process Engineer job openings:

Senior Process Engineer jobs near you
Infographic showing various Senior Process Engineer job openings in Peoria, IL as of August 2026, with employment types broken down into 1% As Needed, 75% Full Time, 20% Part Time, 3% Contract, and 1% Nights. Highlights an 89% Physical, 2% Hybrid, and 9% Remote job distribution, with an average salary of $118,837 per year, or $57.1 per hour.

Senior Electrical Engineer

RFA Engineering

Chillicothe, IL • On-site

$90K - $120K/yr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 11 hours ago

Job description

RFA Engineering (www.rfamec.com) is an engineering service provider dedicated to delivering our clients with timely engineering support and expertise. We are seeking an experienced level candidate to become an integral part of our engineering team. The selected candidate will work with an experienced engineering staff using state-of-the-art engineering tools & processes. This position will operate onsite at our customer's world-class engineering and manufacturing facility.
This is a full-time position with a full benefit package listed below that includes opportunities for professional growth, direct hire by our customers, and additional opportunities within our own organization.
Senior Electrical Engineer - Power Electronics
The selected candidate will support the development of advanced medium-voltage and utility-scale power conversion systems. In this role, you will design, validate, and troubleshoot power electronics hardware used in high-power inverter and converter applications. You will work closely with multidisciplinary engineering teams to develop reliable, high-performance hardware while supporting projects from concept through production.
Responsibilities
  • Design, develop, and troubleshoot power electronics hardware, including gate driver boards, power boards, sensing circuits, and protection circuitry for high-power applications.
  • Create electrical schematics, review PCB layouts, and select components such as IGBT and SiC power devices, isolated gate drivers, sensors, and power supplies.
  • Develop and execute validation plans by performing laboratory testing, including double pulse testing, switching characterization, thermal testing, fault analysis, and system commissioning.
  • Analyze switching performance, power losses, thermal behavior, and protection circuit operation using oscilloscopes, power analyzers, thermal cameras, and other laboratory equipment.
  • Investigate hardware failures, perform root cause analysis, and implement corrective actions to improve reliability and performance.
  • Collaborate with controls, mechanical, manufacturing, validation, and supplier teams to support prototype builds, product development, and production readiness while promoting Design for Manufacturability (DFM) and Design for Testability (DFT) best practices.

Requirements
  • Bachelor's degree in Electrical Engineering with at least five years of experience developing power electronics hardware.
  • Experience designing and validating inverter, converter, motor drive, battery energy storage, renewable energy, or similar high-power systems.
  • Strong knowledge of IGBT and SiC power devices, gate driver design, power converter topologies, switching behavior, thermal management, and protection circuits.
  • Experience designing and debugging power electronics PCB assemblies and performing laboratory validation using high-speed measurement equipment.
  • Strong analytical, troubleshooting, communication, and cross-functional collaboration skills.

Preferred Qualifications
  • Master's degree in Electrical Engineering with an emphasis in Power Electronics.
  • Experience with medium-voltage power conversion systems and tools such as MATLAB/Simulink, PLECS, LTspice, or Altium Designer.
  • Knowledge of Double Pulse Testing (DPT), EMI/EMC mitigation, UL and IEC standards, DFMEA, reliability engineering, and production launch support.

Visa sponsorship is NOT available for this position.
Pay Range: $90,000 - $120,000/yr - Commensurate with experience
About RFA Engineering
RFA Engineering has provided product development and engineering services to industry leading customers since 1943. Our primary focus is the development of off highway equipment including agricultural, construction, mining, recreational, industrial, and special machines. Our work includes concept development, product design, documentation, problem-solving, simulation, optimization, and testing of components, systems and complete machines. Our engineering staff is located at our Engineering Center in Minneapolis, branch office in Dubuque, IA, and at numerous customer sites throughout the U.S.
Competitive Benefits
  • Health and Dental Insurance
  • Health Savings Account
  • TelaDoc: Virtual Health Care
  • Vision Insurance
  • Company Paid / Supplemental Life Insurance
  • Company Paid Long-Term Disability
  • Supplemental Short-Term Disability
  • Retirement Savings Account (Traditional 401k & Roth 401k)
  • Flexible Spending Plan Dependent Care
  • Bonus Plan (Exempt Employees Only)
  • Paid Time Off (PTO)
  • Paid Holidays
  • Bereavement Leave
  • Employee Assistance Programs (EAP)
  • Education Assistance

Equal Opportunity and Veteran Friendly
Equal Opportunity Employer
This employer is required to notify all applicants of their rights pursuant to federal employment laws. For further information, please review the Know Your Rights notice from the Department of Labor.

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