2,623 Results for

Performance Engineer Jobs in Warrenville, IL

Jobs

Chicago, IL

$200,000–$260,000 / year

Qualities that make great candidates: BS/MS/PhD in a technical field (Computer Science, Math, Physics, Engineering).Strong C++ or Python programming background with demonstrated experience developing performant, scalable applications. Information collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal.

9 days ago

Chicago, IL

Full time

Exp must incl: Implementing automation & monitoring using shell scripting; install, configure & maintain job mgmt tools (SLURM/Moab/ TORQUE/PBS); operating sys deployment w/XCAT/ROCKS; configure administer & support network storage subsys (IBM/NetAppl/Data Direct Network/LSI); distributed file sys (GPFS/Lustre/Gluster); configure, install, tune & maintain: scientific app sw, performance monitoring & optimization tools. Req'd: 5yrs: Linux build automation in a large, distributed computing environment w/ Puppet/Ansible/Git/ Docker; scripting w/Python/Shell/Perl.

26 days ago

Chicago Heights, IL

$75–$76 / hour

In this role, you will own the performance engineering strategy and execution for Receivables, partnering with Application Engineering, DevOps, and Product teams to define non-functional requirements, build scalable performance test frameworks, and drive actionable improvements across application, database, network, and infrastructure layers. * Analyze performance test results to identify bottlenecks and root causes across application, database, network, and infrastructure layers; drive performance tuning and architectural improvements with partner teams.

30+ days ago

Bedford Park, IL

$95,000–$120,000 / year

Information collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal. Decades-old metals manufacturer offering strong $$$, benefits, and great team in need of experienced Industrial Reliability Engineer to join the team!.

9 days ago

Chicago, IL

$100,000–$160,000 / year

Information collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal. Due to continued growth, they are seeking an experienced Municipal Engineer to serve as a technical leader, mentor developing staff, and help drive future expansion opportunities within the Illinois market.

9 days ago

Willowbrook, IL

$80,000–$120,000 / year

Information collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal. With decades of experience integrating architecture, engineering, and construction services in a seamless model, our client delivers innovative, sustainable solutions that accelerate project outcomes and generate long-lasting impact.

9 days ago

Schaumburg, IL

$85,000–$105,000 / year

Information collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal. Founded over six decades ago, with operations across the United States and globally, we are a manufacturing organization that develops engineered fluid power and hydraulic system solutions for demanding industrial and mobile equipment applications.

9 days ago

Chicago, IL

$90,000–$115,000 / year

Currently hiring for a Manufacturing Engineer to design and refine production workflows to boost efficiency, quality, and cost performance within a fully integrated manufacturing setting (including CNC and manual machining, sheet metal work, welding, and assembly). Information collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal.

9 days ago

Chicago, IL

$90,000–$120,000 / year

Information collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal. Our practical approach addresses our clients' complex energy needs, maximizing savings and return on investment while minimizing environmental impact across all served markets.

9 days ago

Chicago, IL

$140,000–$160,000 / year

Information collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal. The ideal candidate will design, implement, secure, and optimize network infrastructure across on-premise and cloud environments, ensuring high performance, reliability, and compliance with security best practices.

8 days ago

Park Forest, IL

$95,000–$115,000 / year

Information collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal. This position offers a unique opportunity to work on a variety of projects, from initial concept to final implementation, and to make a significant impact on our company's success.

9 days ago

Oakbrook Terrace, IL

$90,000–$110,000 / year

Information collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal. Our firm is a well-established, relationship-driven construction management and general contracting organization with a long track record of repeat client partnerships and high-quality project outcomes.

1 day ago

Schaumburg, IL

$175,000–$185,000 / year

Information collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal. We simplify the path to financial progress: for consumers, helping manage payments and track their journey toward financial freedom; for our clients, offering an all-in-one platform with automation and real-time insights to drive operational efficiency.

9 days ago

Naperville, IL

$125,000–$145,000 / year

Information collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal. The company fosters a collaborative environment where engineers work across disciplines to solve complex technical challenges, make an impact on high-performance products, and contribute to next-generation vehicle and equipment solutions.

9 days ago

Chicago, IL

$180,000–$250,000 / year

Information collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal. Build automated data validation test suites that ensure that data is processed and published in accordance with well-defined Service Level Agreements (SLAs) pertaining to data quality, data availability, and data correctness.

9 days ago

Chicago, IL

Remote

$100,000–$120,000 / year

Information collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal. We are seeking a Software Engineer with strong Java development experience and AWS cloud exposure to join a growing engineering team responsible for developing, deploying, supporting, and enhancing enterprise software applications.

1 day ago

Chicago, IL

$58.80–$84 / hour

This role involves developing secure, scalable, and reliable technology solutions to meet global risk management needs. Learn more about our Onboarding Process here https://youtu.be/rjV_NFYjyY4 .

Today

Schaumburg, IL

$53.92–$53.92

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• Bachelor of Science in Engineering, or related technical field or Five (5) years of equivalent engineering experience

• Must possess a valid, unexpired driver's license

• RETA CIRO (Certified industrial Refrigeration Operator) Ammonia Operator II

• PSM/RPM for Compliance (RAGAGEP)

• Plant Experience

• Must possess engineering license in the state, county or city jurisdiction in which work will be performed

Preferred Qualifications:

• With a Bachelor of Science degree, three (3) years of prior experience in the engineering field is preferred

• Experience with ammonia is preferred

• Without a Bachelor of Science degree, seven (7) years of prior experience in the engineering field is preferred

Military and veteran friendly employer, veterans and candidates with military experience encouraged to apply

About Us.

11 days ago

Northfield, IL

$79,000–$119,000 / year
Full time

The position works cross-functionally with Mechanical, Software, Quality, Regulatory, and Manufacturing teams to deliver safe, effective, and compliant products

Job Description.

Medline Industries, LP, and its subsidiaries, offer a competitive total rewards package, continuing education & training, and tremendous potential with a growing worldwide organization.

30 days ago

Northbrook, IL

$92,000–$138,000 / year
Full time

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Medline Industries, LP, and its subsidiaries, offer a competitive total rewards package, continuing education & training, and tremendous potential with a growing worldwide organization.

To be successful in the role, you need strong analytical skills, excellent communication skills and will be responsible for developing and maintaining enterprise and departmental business intelligence, data warehousing and reporting solutions.

20 days ago

Chicago, IL

$90–$100 / hour

This position focuses on developing scalable, secure, and high-performing Salesforce platform solutions, including reusable components, integration frameworks, and automation strategies.

Configure and manage Salesforce components including custom objects, fields, dashboards, workflows, automations, and triggers.

13 days ago

Cary, IL

$45–$51 / hour

Join a leading medical technology manufacturer as a Manufacturing Engineer supporting equipment installations, process improvements, and production optimization within a dynamic manufacturing environment. This hands-on contract opportunity offers the chance to work cross-functionally on automation, validations, and continuous improvement initiatives while making a direct impact on operational performance and product quality.

7 days ago

OAKBROOK TERRACE, IL

$103,200–$141,900

p>Develops studies, plans, criteria, specifications, calculations, evaluations, design documents, performance assessments, integrated systems analysis, cost estimates, budgets, associated with the planning, design, licensing, construction, commissioning, operation, and maintenance of Exelon's electric generation, transmission, distribution, gas and telecommunication facilities/systems. We are a Fortune 200 company, 20,000 colleagues strong serving more than 10.7 million customers at six energy companies -- Atlantic City Electric (ACE), Baltimore Gas and Electric (BGE), Commonwealth Edison (ComEd), Delmarva Power & Light (DPL), PECO Energy Company (PECO), and Potomac Electric Power Company (Pepco).

29 days ago

Downers Grove, IL

Responsibilities include developing specifications and modification packages, defining design scope, preparing design criteria documents, identifying and selecting equipment and instruments, and developing system functionality. This senior-level engineering role requires extensive experience with nuclear power plant systems, components, and structures and the ability to independently lead technical engineering efforts.

Today

Hinsdale, IL

$92,300–$166,850

April 30, 2026

For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above. If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at LeidosCareersFraud@leidos.com.

7 days ago

Chicago, IL

System One LLC is seeking an experienced Substation Electrical Engineer to support the design and delivery of high-voltage and extra-high-voltage substations and transmission systems. This role is ideal for mid- to senior-level engineers with strong technical expertise in power delivery who are looking to take on greater responsibility in design execution, coordination, and client support.

11 days ago

Chicago, IL

Full time

The role focuses on extending and maintaining test automation frameworks for Continuous Integration (CI) and Continuous Delivery (CD) pipelines. • Testing Types: Experience with full-stack testing, end-to-end system integration testing, and 3rd-party integration testing.

1 day ago

Chicago, IL

$110,000–$145,000

Employee pay is based on factors like relevant education, qualifications, certifications, experience, skills, seniority, location, performance, union contract and business needs.

By clicking “Apply Today” you agree to receive calls, AI-generated calls, text messages or emails from Kforce and its affiliates, and service providers.

Today

Naperville, IL

$93,800–$140,600 / year

We work with customers across the world in the light industry (institutional, food & beverage, manufacturing, transportation, textile care, and global high tech) and heavy industry (chemical, downstream, paper, mining, power and primary metals industries) to reduce, reuse, and recycle their water while protecting their systems and equipment.

In addition to advanced troubleshooting and commissioning support, the Service Engineer serves as a technical authority, mentor, and trainer, enabling internal service teams and delivering customer‑facing training during deployments, handoffs, and lifecycle engagements.

1 day ago

Chicago, Illinois

Contractor

For more information or to view all our open jobs, please visit www.vsoftconsulting.com or call (844) 425-8425.

Maintain security strategies using both hardware and software methodologies to audit, monitor and protect internal and external network connections, network equipment and servers .

1 day ago

Chicago, IL

Remote

$175,000–$250,000 / year

p>By combining trusted insight with expert guidance, Later removes guesswork from influencer marketing, enabling brands to choose the right creators, execute fully managed campaigns, and drive meaningful growth across awareness, engagement, and revenue.

Built on a native, AI-powered platform and more than a decade of proprietary data—including billions of social interactions, impressions, and $2.4B+ in verified influencer-driven purchases—Later helps teams understand what will work before they launch.

2 days ago

Chicago, IL

Remote

$175,000–$250,000 / year

2 days ago

Chicago, IL

Remote

p>• You believe customers are more than a number: Samsara engineers enjoy a rare closeness to the end user and you will have the opportunity to participate in customer interviews, collaborate with customer success and product managers, and use metrics to ensure our work is translating into better customer outcomes.

• You want to impact the industries that run our world: The software, firmware, and hardware you build will result in real-world impact—helping to keep the lights on, get food into grocery stores, and most importantly, ensure workers return home safely.

2 days ago

Chicago, IL

Remote

$93,600–$159,328 / year

li>Experience working with ArcGIS applications and technologies (such as ArcGIS Hub, ArcGIS Map Viewer, ArcGIS REST APIs, ArcGIS API for Python, ArcGIS Maps SDKs). You will act as a service owner and trusted decision‑maker, shaping priorities, balancing tradeoffs, and ensuring our web services remain reliable, scalable, and valuable to customers over time.

2 days ago

Chicago, IL

$115,000–$143,750 / year

p>Apex Fintech Solutions (Apex) powers innovation and the future of digital wealth management by building tech-forward solutions that help simplify, automate, and facilitate access to financial markets for all. Our robust suite of fintech software enables us to support clients such as Stash, Betterment, SoFi, Webull, and eToro, amongst many others; collectively, Apex powers access to the stock market for over 22+ million end customers.

2 days ago

Joliet, IL

$107,600–$161,500 / year

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Annual or Hourly Compensation Range:.

Primary responsibility will be to provide Process Hazard Analysis studies support which includes:
- Prepare, facilitate, and scribe PHA studies through a variety of methodologies (What-If, Checklist, HAZOP, HAZID, etc.) and Layer of Protection Analysis (LOPA) and including facility siting, human factors.

1 day ago

Chicago, IL

Remote

$125,000–$205,000 / year

2 days ago

Chicago, IL

This role focuses on building and operating scalable, high-quality data infrastructure that powers agentic AI systems, including LLM-based agents, multi-agent workflows, and tool-using AI systems.

• Architect and build scalable, secure, and observable data infrastructure to power LLM-based agents, multi-agent systems, and tool-using AI workflows.

2 days ago

Chicago, IL

Remote

$79,664–$133,120 / year

As the Product Engineer II – Utilities, you will collaborate with customers, industry teams, and other product development team members to design, develop, and support the right geospatial solutions for electric, gas, water, sewer, stormwater and telecommunications agencies.

Design and author test cases for functionality, performance, scalability, and durability; execute both manual and automated tests, analyze test results, and report results.

2 days ago

Chicago, IL

You will collaborate with architects, engineers, and cross-functional stakeholders across Samsara to brainstorm, design, rapidly prototype, and productionalize AI-driven features and capabilities that integrate deeply into real business workflows.

Samsara (NYSE: IOT) is the pioneer of the Connected Operations™ Cloud, which is a platform that enables organizations that depend on physical operations to harness Internet of Things (IoT) data to develop actionable insights and improve their operations.

2 days ago

Chicago, IL

$101,400–$152,100 / year

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Performance Engineer Jobs in Warrenville, IL

In addition to advanced troubleshooting and commissioning support, the Service Engineer serves as a technical authority, mentor, and trainer, enabling internal service teams and delivering customer‑facing training during deployments, handoffs, and lifecycle engagements.

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