Application Engineer Jobs in Illinois
Application Engineer jobs in Illinois are consistently active, with demand concentrated in industrial automation, manufacturing technology, and enterprise software across a range of levels from entry-level to senior. Chicago leads hiring volume by a wide margin, with Rockford and Peoria also generating steady openings tied to their manufacturing and machinery bases. Caterpillar, Abbott Laboratories, and Rockwell Automation all maintain a significant Illinois presence and regularly bring on application engineers. The most in-demand specialties are PLC and controls integration, CAD-driven mechanical applications, and SaaS implementation engineering. Find a role that fits below and apply directly.
Find Application Engineer JobsOverview
Showing 4 of 61+ Application Engineer jobs
Job description
Location: Anywhere in Country
At EY, we’re all in to shape your future with confidence.
We’ll help you succeed in a globally connected powerhouse of diverse teams and take your career wherever you want it to go. Join EY and help to build a better working world.
As a WAF Operations Solution Engineer, you will be responsible for implementing and managing Web Application Firewall (WAF) solutions to protect client applications from cyber threats. You will work within a team of cybersecurity professionals to establish effective security measures that safeguard web applications and data.
JOB SUMMARY:
In the role of WAF Operations Solution Engineer, you will configure and provide ongoing operational coverage of web application firewalls to maintain optimal performance and security for client applications. The primary purpose of this role is to assist with change requests and support problem resolution to uphold the integrity of web applications. You will actively monitor application traffic, analyze security events, and respond to incidents to mitigate risks effectively. Additionally, you will collaborate with cross-functional teams to enhance the overall security posture of web applications, leveraging your experience with various WAF solutions to implement and automate security measures.
KEY RESPONSIBILITIES:
- Configure, manage, and optimize WAF solutions to establish effective security controls for web applications.
- Provide ongoing operational coverage of web application firewalls, ensuring they function correctly and efficiently.
- Monitor application traffic and security events to identify potential threats and vulnerabilities.
- Conduct thorough analysis of security incidents, including root cause analysis and remediation efforts.
- Collaborate with incident response teams to investigate and respond to security incidents in a timely manner.
- Develop and maintain WAF policies, rules, and documentation to align with best practices and compliance requirements.
- Provide support for security audits and assessments, promoting adherence to security standards and policies.
- Stay current with emerging threats, vulnerabilities, and security technologies to enhance the organization's security posture.
- Utilize various WAF solutions, including Cloudflare and Imperva, for implementation and management, ensuring optimal configuration and performance.
- Leverage Terraform for infrastructure as code (IaC) to automate the deployment and management of WAF solutions.
- Mentor junior engineers and provide guidance on WAF management and incident response processes.
QUALIFICATIONS:
- Bachelor’s degree in computer science, Information Technology, Cybersecurity, or a related field preferred.
- 3-5 years of experience in web application security operations, with a focus on WAF management.
- Hands-on experience with WAF solutions such as Cloudflare and Imperva is required.
- Proficiency in using Terraform for infrastructure automation is preferred.
- Strong understanding of web application protocols, security principles, and best practices.
- Familiarity with ITIL processes and ticketing systems for incident management.
- Relevant certifications (e.g., CISSP, Security+) are a plus.
- Excellent analytical, problem-solving, and communication skills.
- Ability to work independently and collaboratively in a fast-paced environment.
WHAT WE OFFER:
At EY, we are committed to your professional development and career growth. You will have access to continuous training and mentorship, enabling you to enhance your skills and advance your career in cybersecurity. Join us in building a more secure and trusted working world.
Ernst & Young LLP is an equal employment opportunity employer. We value the diversity of our workforce and the knowledge of our people.
What we offer you
At EY, we’ll develop you with future-focused skills and equip you with world-class experiences. We’ll empower you in a flexible environment, and fuel you and your extraordinary talents in a diverse and inclusive culture of globally connected teams. Learn more.
- We offer a comprehensive compensation and benefits package where you’ll be rewarded based on your performance and recognized for the value you bring to the business. The base salary range for this job in all geographic locations in the US is $104,800 to $192,200. The base salary range for New York City Metro Area, Washington State and California (excluding Sacramento) is $125,800 to $218,500. Individual salaries within those ranges are determined through a wide variety of factors including but not limited to education, experience, knowledge, skills and geography. In addition, our Total Rewards package includes medical and dental coverage, pension and 401(k) plans, and a wide range of paid time off options.
- Join us in our team-led and leader-enabled hybrid model. Our expectation is for most people in external, client serving roles to work together in person 40-60% of the time over the course of an engagement, project or year.
- Under our flexible vacation policy, you’ll decide how much vacation time you need based on your own personal circumstances. You’ll also be granted time off for designated EY Paid Holidays, Winter/Summer breaks, Personal/Family Care, and other leaves of absence when needed to support your physical, financial, and emotional well-being.
Are you ready to shape your future with confidence? Apply today.
EY accepts applications for this position on an on-going basis.
For those living in California, please click here for additional information.
EY focuses on high-ethical standards and integrity among its employees and expects all candidates to demonstrate these qualities.
EY | Building a better working world
EY is building a better working world by creating new value for clients, people, society and the planet, while building trust in capital markets.
Enabled by data, AI and advanced technology, EY teams help clients shape the future with confidence and develop answers for the most pressing issues of today and tomorrow.
EY teams work across a full spectrum of services in assurance, consulting, tax, strategy and transactions. Fueled by sector insights, a globally connected, multi-disciplinary network and diverse ecosystem partners, EY teams can provide services in more than 150 countries and territories.
EY provides equal employment opportunities to applicants and employees without regard to race, color, religion, age, sex, sexual orientation, gender identity/expression, pregnancy, genetic information, national origin, protected veteran status, disability status, or any other legally protected basis, including arrest and conviction records, in accordance with applicable law.
EY is committed to providing reasonable accommodation to qualified individuals with disabilities including veterans with disabilities. If you have a disability and either need assistance applying online or need to request an accommodation during any part of the application process, please call 1-800-EY-HELP3, select Option 2 for candidate related inquiries, then select Option 1 for candidate queries and finally select Option 2 for candidates with an inquiry which will route you to EY’s Talent Shared Services Team (TSS) or email the TSS at ssc.customersupport@ey.com.
Job description
Location: Anywhere in Country
At EY, we’re all in to shape your future with confidence.
We’ll help you succeed in a globally connected powerhouse of diverse teams and take your career wherever you want it to go. Join EY and help to build a better working world.
As a WAF Operations Solution Engineer, you will be responsible for implementing and managing Web Application Firewall (WAF) solutions to protect client applications from cyber threats. You will work within a team of cybersecurity professionals to establish effective security measures that safeguard web applications and data.
JOB SUMMARY:
In the role of WAF Operations Solution Engineer, you will configure and provide ongoing operational coverage of web application firewalls to maintain optimal performance and security for client applications. The primary purpose of this role is to assist with change requests and support problem resolution to uphold the integrity of web applications. You will actively monitor application traffic, analyze security events, and respond to incidents to mitigate risks effectively. Additionally, you will collaborate with cross-functional teams to enhance the overall security posture of web applications, leveraging your experience with various WAF solutions to implement and automate security measures.
KEY RESPONSIBILITIES:
- Configure, manage, and optimize WAF solutions to establish effective security controls for web applications.
- Provide ongoing operational coverage of web application firewalls, ensuring they function correctly and efficiently.
- Monitor application traffic and security events to identify potential threats and vulnerabilities.
- Conduct thorough analysis of security incidents, including root cause analysis and remediation efforts.
- Collaborate with incident response teams to investigate and respond to security incidents in a timely manner.
- Develop and maintain WAF policies, rules, and documentation to align with best practices and compliance requirements.
- Provide support for security audits and assessments, promoting adherence to security standards and policies.
- Stay current with emerging threats, vulnerabilities, and security technologies to enhance the organization's security posture.
- Utilize various WAF solutions, including Cloudflare and Imperva, for implementation and management, ensuring optimal configuration and performance.
- Leverage Terraform for infrastructure as code (IaC) to automate the deployment and management of WAF solutions.
- Mentor junior engineers and provide guidance on WAF management and incident response processes.
QUALIFICATIONS:
- Bachelor’s degree in computer science, Information Technology, Cybersecurity, or a related field preferred.
- 3-5 years of experience in web application security operations, with a focus on WAF management.
- Hands-on experience with WAF solutions such as Cloudflare and Imperva is required.
- Proficiency in using Terraform for infrastructure automation is preferred.
- Strong understanding of web application protocols, security principles, and best practices.
- Familiarity with ITIL processes and ticketing systems for incident management.
- Relevant certifications (e.g., CISSP, Security+) are a plus.
- Excellent analytical, problem-solving, and communication skills.
- Ability to work independently and collaboratively in a fast-paced environment.
WHAT WE OFFER:
At EY, we are committed to your professional development and career growth. You will have access to continuous training and mentorship, enabling you to enhance your skills and advance your career in cybersecurity. Join us in building a more secure and trusted working world.
Ernst & Young LLP is an equal employment opportunity employer. We value the diversity of our workforce and the knowledge of our people.
What we offer you
At EY, we’ll develop you with future-focused skills and equip you with world-class experiences. We’ll empower you in a flexible environment, and fuel you and your extraordinary talents in a diverse and inclusive culture of globally connected teams. Learn more.
- We offer a comprehensive compensation and benefits package where you’ll be rewarded based on your performance and recognized for the value you bring to the business. The base salary range for this job in all geographic locations in the US is $104,800 to $192,200. The base salary range for New York City Metro Area, Washington State and California (excluding Sacramento) is $125,800 to $218,500. Individual salaries within those ranges are determined through a wide variety of factors including but not limited to education, experience, knowledge, skills and geography. In addition, our Total Rewards package includes medical and dental coverage, pension and 401(k) plans, and a wide range of paid time off options.
- Join us in our team-led and leader-enabled hybrid model. Our expectation is for most people in external, client serving roles to work together in person 40-60% of the time over the course of an engagement, project or year.
- Under our flexible vacation policy, you’ll decide how much vacation time you need based on your own personal circumstances. You’ll also be granted time off for designated EY Paid Holidays, Winter/Summer breaks, Personal/Family Care, and other leaves of absence when needed to support your physical, financial, and emotional well-being.
Are you ready to shape your future with confidence? Apply today.
EY accepts applications for this position on an on-going basis.
For those living in California, please click here for additional information.
EY focuses on high-ethical standards and integrity among its employees and expects all candidates to demonstrate these qualities.
EY | Building a better working world
EY is building a better working world by creating new value for clients, people, society and the planet, while building trust in capital markets.
Enabled by data, AI and advanced technology, EY teams help clients shape the future with confidence and develop answers for the most pressing issues of today and tomorrow.
EY teams work across a full spectrum of services in assurance, consulting, tax, strategy and transactions. Fueled by sector insights, a globally connected, multi-disciplinary network and diverse ecosystem partners, EY teams can provide services in more than 150 countries and territories.
EY provides equal employment opportunities to applicants and employees without regard to race, color, religion, age, sex, sexual orientation, gender identity/expression, pregnancy, genetic information, national origin, protected veteran status, disability status, or any other legally protected basis, including arrest and conviction records, in accordance with applicable law.
EY is committed to providing reasonable accommodation to qualified individuals with disabilities including veterans with disabilities. If you have a disability and either need assistance applying online or need to request an accommodation during any part of the application process, please call 1-800-EY-HELP3, select Option 2 for candidate related inquiries, then select Option 1 for candidate queries and finally select Option 2 for candidates with an inquiry which will route you to EY’s Talent Shared Services Team (TSS) or email the TSS at ssc.customersupport@ey.com.
See All 61 Application Engineer Jobs in Illinois
Find roles in Illinois that match your experience and apply in just a few clicks.
Find Application Engineer JobsApplication Engineer Jobs by City in Illinois
Where Illinois roles are concentrated, by current openings.
Application Engineer Job Market in Illinois
A snapshot from current Illinois openings, updated as new roles post.
Who's Hiring
Top Industries Hiring
- Manufacturing
- Technology & Software
- Automotive
- Consulting & Professional Services
- Energy
What Illinois Employers Look For
The qualifications that appear most often in application engineer jobs across Illinois.
- Bachelor's degree in engineering, computer science, or a closely related technical field
- Hands-on experience with the product or platform the role supports, such as industrial controls or enterprise software
- Ability to read and interpret engineering drawings, schematics, or technical specifications
- Strong customer-facing communication skills for pre-sales support, demos, and post-sale onboarding
- Proficiency with CAD tools, simulation software, or relevant programming languages depending on the discipline
- Willingness to travel to customer sites throughout Illinois and surrounding Midwest regions
Application Engineer Jobs in Illinois: Frequently Asked Questions
How do you become a application engineer in Illinois?
Most Illinois employers require a bachelor's degree in mechanical, electrical, industrial, or computer engineering as the foundation. Application engineering does not require a state-issued professional license in Illinois for most roles, though engineers who stamp drawings or take on formal design responsibility may pursue licensure through the Illinois Design Firm Registry or sit for the Professional Engineer exam administered by the Illinois Department of Financial and Professional Regulation. Beyond credentials, employers prioritize hands-on product knowledge and communication ability.
Which companies hire application engineers in Illinois?
Employers hiring application engineers in Illinois right now include AbbVie, FieldAI, and CVS Health, based on current listings on Migrate Mate as of August 2026. Illinois's deep manufacturing base and concentration of technology and life sciences companies means openings appear across a wider range of industries here than in most other states.
Which Illinois cities have the most application engineer jobs?
Chicago, Schaumburg, and Illinois have the most application engineer openings in Illinois. Chicago anchors the market due to its concentration of enterprise software firms, medical device companies, and industrial headquarters, while Rockford and Peoria generate steady demand from heavy equipment manufacturers and automation integrators that have operated in those corridors for decades.
Are there remote application engineer jobs in Illinois?
Yes, but they're a smaller share of the total than in purely desk-based fields, since application engineers frequently travel to customer sites or work directly with physical equipment. About 61% of application engineer openings tied to Illinois are remote or hybrid as of August 2026, and those positions tend to cluster in SaaS implementation and enterprise software support, where customer interaction happens over video and shared environments rather than on the plant floor.
How can I get hired as a application engineer in Illinois with little or no experience?
The most realistic entry path is a new-graduate or associate application engineer role at a mid-size Illinois manufacturer or automation integrator, where onboarding is structured around product training rather than assumed expertise. Caterpillar's early-career engineering programs and Abbott's associate technical roles in the Chicago suburbs are well-known Illinois examples. Candidates moving from adjacent roles such as field service technician, technical support specialist, or applications technician find the transition particularly direct. A portfolio of CAD work, a relevant internship, or an EIT designation through the Illinois Department of Financial and Professional Regulation gives a first-time applicant a measurable edge.
Where can I find and apply to application engineer jobs in Illinois?
You can find and apply to application engineer jobs in Illinois on Migrate Mate, which lists current Illinois openings updated regularly. Search the listings to see what is available across Chicago, Rockford, Peoria, and other Illinois markets, then apply directly to the roles that fit your background and target industry.
See All 61 Application Engineer Jobs in Illinois
Find roles in Illinois that match your experience and apply in just a few clicks.
Find Application Engineer Jobs