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Senior Reliability Engineer Jobs in Illinois (NOW HIRING)

Entegris

Process Reliability Engineer

Aurora, IL · On-site

$101K - $127K/yr

  • Medical

  • Dental

  • Vision

  • Retirement

  • PTO

The position reports to the Senior Maintenance Manager. What You'll Do Reliability Analysis & Asset ... Engineering Documentation : Manage and produce engineering drawings (P&IDs, electrical schematics ...

P2P

Site Reliability Engineer, Observability

Chicago, IL · On-site

$160 - $200/hr

  • Retirement

  • PTO

Position Senior Site Reliability Engineer - part of Ripple's Technical Operations team. This role focuses on observability, releasability, security, and DevSecOps practices to keep Ripple's products ...

Entegris

Process Reliability Engineer

Aurora, IL · On-site

$101K - $127K/yr

  • Medical

  • Dental

  • Vision

  • Retirement

  • PTO

The position reports to the Senior Maintenance Manager. WhatYou'llDo Reliability Analysis & Asset ... Engineering Documentation : Manage and produce engineering drawings (P&IDs, electrical schematics ...

Entegris

Process Reliability Engineer

Aurora, IL · On-site

$102K - $128K/yr

  • Medical

  • Dental

  • Vision

  • Retirement

  • PTO

The position reports to the Senior Maintenance Manager. WhatYou'llDo Reliability Analysis & Asset ... Engineering Documentation : Manage and produce engineering drawings (P&IDs, electrical schematics ...

Trans Union LLC

Staff Site Reliability Engineer

Chicago, IL · On-site

$58.75 - $78/hr

  • Medical

  • Dental

  • Vision

  • Retirement

  • PTO

As a Staff Site Reliability Engineer at TransUnion, you will serve as a senior technical leader and force multiplier on the SRE team. Operating with full autonomy, you will drive reliability strategy ...

Rivian

Senior Field Quality & Reliability Engineer

Normal, IL · On-site

$135K - $168K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Role Summary The Field Quality and Reliability Engineer is responsible for driving the highest quality and reliability standards for our commercial vehicle platform. This role will achieve this by ...

TransUnion

Staff Site Reliability Engineer

Chicago, IL · On-site

$58.75 - $78/hr

  • Medical

  • Dental

  • Vision

  • Retirement

  • PTO

As a Staff Site Reliability Engineer at TransUnion, you will serve as a senior technical leader and force multiplier on the SRE team. Operating with full autonomy, you will drive reliability strategy ...

TransUnion

Staff Site Reliability Engineer

Chicago, IL · On-site

$58.75 - $78/hr

  • Medical

  • Dental

  • Vision

  • PTO

As a Staff Site Reliability Engineer at TransUnion, you will serve as a senior technical leader and force multiplier on the SRE team. Operating with full autonomy, you will drive reliability strategy ...

Transunion

Staff Site Reliability Engineer

Chicago, IL

$58.75 - $78/hr

  • Medical

  • Dental

  • Vision

  • PTO

As a Staff Site Reliability Engineer at TransUnion, you will serve as a senior technical leader and force multiplier on the SRE team. Operating with full autonomy, you will drive reliability strategy ...

SEI Investments

Senior DevOps/SRE Engineer

Chicago, IL · On-site

$140K - $170K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

We are looking for a Senior Site Reliability Engineer to work as part of a lean, product-focused engineering organization. This role is about building and operating reliable cloud-based systems by ...

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Senior Reliability Engineer information

See Illinois salary details

$20

$62

$89

How much do senior reliability engineer jobs pay per hour?

As of Aug 17, 2026, the average hourly pay for senior reliability engineer in Illinois is $62.42, according to ZipRecruiter salary data. Most workers in this role earn between $51.49 and $74.76 per hour, depending on experience, location, and employer.

What does a senior reliability engineer do?

A Senior Reliability Engineer is responsible for ensuring that systems, products, or processes operate reliably and efficiently over time. They analyze failure data, design reliability tests, develop maintenance strategies, and work with cross-functional teams to improve system performance and reduce downtime. Their expertise helps organizations minimize risk, optimize lifecycle costs, and maintain high standards of quality and safety. Senior Reliability Engineers often mentor junior team members and play a key role in developing reliability standards and best practices.

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

To thrive as a Senior Reliability Engineer, you need expertise in reliability engineering principles, root cause analysis, and a relevant engineering degree such as mechanical, electrical, or industrial engineering. Familiarity with tools like FMEA, RCA software, CMMS, and certifications such as Certified Reliability Engineer (CRE) are often required. Strong analytical thinking, communication skills, and the ability to lead cross-functional teams set top performers apart. These skills are essential for minimizing downtime, improving system reliability, and ensuring safe, efficient operations.

What are some common challenges faced by senior reliability engineers, and how are they typically addressed within the team?

Senior Reliability Engineers often encounter challenges such as diagnosing complex system failures, balancing proactive maintenance with urgent reactive fixes, and ensuring consistent communication across multidisciplinary teams. These challenges are typically addressed through root cause analysis, prioritization frameworks, and fostering a culture of knowledge sharing. Regular collaboration with operations, maintenance, and engineering teams helps in developing effective solutions and continuous improvement strategies.

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

AspectSenior Reliability EngineerReliability Engineer
CredentialsTypically requires 5+ years experience, certifications like CRE or Six SigmaEntry to mid-level, often with 2-4 years experience, similar certifications
Work EnvironmentDesigns and oversees reliability programs, leads projectsPerforms analysis, supports reliability improvements
Industry UsageUsed across manufacturing, energy, aerospaceCommon in same industries, often as a stepping stone to senior roles

The main difference between a Senior Reliability Engineer and a Reliability Engineer lies in experience, leadership responsibilities, and scope of work. Senior Reliability Engineers typically lead projects and develop strategies, while Reliability Engineers focus on analysis and supporting reliability initiatives. Both roles are vital in ensuring equipment and system dependability across industries.

How much do senior reliability engineers get paid?

Senior reliability engineers typically earn between $90,000 and $130,000 annually, depending on experience, industry, and location. They often have expertise in systems analysis, failure modes, and reliability tools like FMEA and RCM, which can influence compensation levels.

What are the most commonly searched types of Reliability Engineer jobs in Illinois?

The most popular types of Reliability Engineer jobs in Illinois are:

What are popular job titles related to Senior Reliability Engineer jobs in Illinois?

For Senior Reliability Engineer jobs in Illinois, the most frequently searched job titles are:

What job categories do people searching Senior Reliability Engineer jobs in Illinois look for?

The top searched job categories for Senior Reliability Engineer jobs in Illinois are:

What cities in Illinois are hiring for Senior Reliability Engineer jobs?

Cities in Illinois with the most Senior Reliability Engineer job openings:

What are popular job titles related to Senior Reliability Engineer jobs in IL?

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

Senior Reliability Engineer jobs near you
Infographic showing various Senior Reliability Engineer job openings in Illinois as of August 2026, with employment types broken down into 84% Full Time, and 16% Contract. Highlights an 92% In-person, 4% Hybrid, and 4% Remote job distribution, with an average salary of $129,830 per year, or $62.4 per hour.

Process Reliability Engineer

Entegris

Aurora, IL • On-site

$101K - $127K/yr

Full-time

Medical, Dental, Vision, Retirement, PTO

Re-posted 10 days ago

Entegris rating

8.2

Company rating: 8.2 out of 10

Based on 40 frontline employees who took The Breakroom Quiz

88th of 540 rated manufacturers

Job description

Job Title:
Process Reliability Engineer
Job Description:
The Role
Entegris is currently seeking a Process Reliability Engineer to join our Engineering & Maintenance team. This position will be based in our Aurora, Illinois facility. This position is embedded within the 845 Slurry production area, one of our core manufacturing operations supporting advanced semiconductor fabrication.
In this role, you will serve as the technical subject matter expert for process and support equipment reliability across the Slurry production area. You will drive improvements in equipment uptime, asset lifecycle management, and maintenance effectiveness while collaborating with Operations, Maintenance, and Engineering teams to deliver safe, consistent, and high-quality manufacturing results.
The position reports to the Senior Maintenance Manager.
What You'll Do
Reliability Analysis & Asset Lifecycle Planning
  • Build and maintain the Criticality Analysis plus Critical Spare Parts assessments for all production equipment.

  • Develop and maintain an equipment replacement/repair roadmap driven by reliability data, asset age, and lifecycle cost analysis.

  • Calculate equipment reliability metrics (MTTR, MTBF, etc.) and perform root cause failure analyses (RCFA) to identify failure patterns, prioritize maintenance resources, and reduce unplanned downtime.

  • Build Reliability Block Diagrams (RBD) for critical systems to assess single-point-of-failure risks and model overall system availability (OEE).

Factory Floor Technical Support - Provide SME technical support for key production systems (chemical addition, batch-making, product filling, ultra-pure water, hot oil, process chillers, wastewater, etc.), ensuring uptime and optimal performance. Identify opportunities and run associated projects to improve overall system design.
Project Management: Lead small to medium scale capital and CI projects from inception through completion. Responsibilities include budgeting, project definition utilizing front end loading (FEL), securing funding, following through to commissioning/start up, providing project status updates, managing and completing all aspects of commissioning, and project closure/lessons learned.
Maintenance Support: Develop and refine preventive and reactive maintenance procedures and spare parts inventory processes using tools like SAP-PM, Parsable, SharePoint, and Reliance. Train maintenance personnel as warranted.
Engineering Documentation: Manage and produce engineering drawings (P&IDs, electrical schematics, etc.) and documentation (equipment specifications, maintenance repair procedures) using AutoCAD and similar tools.
EHS Support: Participate in Environmental, Health, and Safety projects focusing on process safety management, ergonomic improvements, and compliance with safety standards. Support and lead EHS teams as needed.
Continuous Learning and Improvement: Stay informed of industry trends, new technologies, and best practices to continually enhance your knowledge and the company's manufacturing capabilities.
What We Seek
Education & Experience
  • Bachelor's degree in Chemical, Mechanical, or Electrical Engineering required.

  • Minimum 5 years of experience in a manufacturing environment, preferably in the chemical, specialty materials, or semiconductor supply chain industry.

Technical Skills
  • Proficiency with CMMS platforms, specifically SAP-PM; experience with Parsable, SharePoint, Reliance, and MS Project is beneficial.

  • Proficient with Microsoft Office Suite; AutoCAD experience required for P&ID and schematic management.

  • Knowledge of predictive and preventive maintenance methodologies, failure analysis, risk management, and lifecycle asset management.

  • Familiarity with batch manufacturing, piping systems, dispersion and separation process equipment, utility systems, and PLC operation preferred.

Core Competencies
  • Demonstrated ability to lead projects, manage competing priorities, and deliver results in a dynamic manufacturing environment.

  • Excellent problem-solving skills with a data-driven approach to decision-making.

  • Strong verbal and written communication skills; ability to present technical content to both technical and non-technical audiences.

  • Collaborative team player who drives results through influence and partnership across operations, maintenance, and engineering functions.

Additional Qualifications
  • Familiarity with health, safety, and environmental regulations in a manufacturing context required.

  • Six Sigma Green Belt certification is a plus.

  • Ability to lift up to 25 lbs; ability to work in a chemical manufacturing environment.

Why Work at Entegris
Lead. Inspire. Innovate. Define Your Future.
Not everyone who works for a global company shares the same background, experiences and perspectives. We leverage the differences of our employees to bring new ideas to the table. Every employee throughout the company is encouraged to share input on projects and initiatives. Our decision-making process is truly a collaborative effort as we realize there are leaders at every level of the organization. We put our values at the core of how we operate as an organization - not just when it's convenient, but in a lasting and meaningful way. We want the time and energy you spend here to have a positive impact on your life inside and outside of the office.
What We Offer
Our total rewards package goes above and beyond just a paycheck. Whether you're looking to build your career, improve your health, or protect your wealth, we offer generous benefits to help you achieve your goals.
  • Compensation: $91,000 - $122,500 per year range with actual pay dependent on candidate overall skills for the role
  • Annual bonus eligibility
  • Progressive paid time off policy that empowers you to take the time you need to recharge
  • Generous 401(K) plan with an impressive employer match with no delayed vesting
  • Excellent health, dental and vision insurance packages to fit your needs
  • Education assistance to support your learning journey
  • A values-driven culture with colleagues that rally around People, Accountability, Creativity and Excellence

Entegris does not provide immigration-related sponsorship for this role. Do not apply for this role if you will need Entegris immigration sponsorship (e.g., H1B, TN, STEM OPT, etc.) now or in the future.
At Entegris we are committed to providing equal opportunity to all employees and applicants. Our policy is to recruit, hire, train, and reward employees for their individual abilities, achievements, and experience without regard to race, color, religion, sexual orientation, age, national origin, disability, marital or military status.
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