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Integration Test Engineer Jobs in Illinois (NOW HIRING)

Senior Test Engineer

Columbia, IL · On-site

$107K - $195K/yr

As a Senior Test Engineer, you will play a key role in ensuring the delivery of reliable, secure ... Design and execute functional, integration, system, regression, and end-to-end testing activities.

Senior Test Engineer

East Saint Louis, IL · On-site

$107K - $195K/yr

As a Senior Test Engineer, you will play a key role in ensuring the delivery of reliable, secure ... Design and execute functional, integration, system, regression, and end-to-end testing activities.

Senior Test Engineer

Fairview Heights, IL · On-site

$107K - $195K/yr

As a Senior Test Engineer, you will play a key role in ensuring the delivery of reliable, secure ... Design and execute functional, integration, system, regression, and end-to-end testing activities.

Senior Test Engineer

Wood River, IL · On-site

$107K - $195K/yr

As a Senior Test Engineer, you will play a key role in ensuring the delivery of reliable, secure ... Design and execute functional, integration, system, regression, and end-to-end testing activities.

Senior Test Engineer

South Roxana, IL · On-site

$107K - $195K/yr

As a Senior Test Engineer, you will play a key role in ensuring the delivery of reliable, secure ... Design and execute functional, integration, system, regression, and end-to-end testing activities.

Senior Test Engineer

Roxana, IL · On-site

$107K - $195K/yr

As a Senior Test Engineer, you will play a key role in ensuring the delivery of reliable, secure ... Design and execute functional, integration, system, regression, and end-to-end testing activities.

Senior Test Engineer

Maryville, IL · On-site

$107K - $195K/yr

As a Senior Test Engineer, you will play a key role in ensuring the delivery of reliable, secure ... Design and execute functional, integration, system, regression, and end-to-end testing activities.

Senior Test Engineer

Dupo, IL · On-site

$107K - $195K/yr

As a Senior Test Engineer, you will play a key role in ensuring the delivery of reliable, secure ... Design and execute functional, integration, system, regression, and end-to-end testing activities.

Senior Test Engineer

Glen Carbon, IL · On-site

$107K - $195K/yr

As a Senior Test Engineer, you will play a key role in ensuring the delivery of reliable, secure ... Design and execute functional, integration, system, regression, and end-to-end testing activities.

Senior Test Engineer

Edwardsville, IL · On-site

$107K - $195K/yr

As a Senior Test Engineer, you will play a key role in ensuring the delivery of reliable, secure ... Design and execute functional, integration, system, regression, and end-to-end testing activities.

Senior Test Engineer

Belleville, IL · On-site

$107K - $195K/yr

As a Senior Test Engineer, you will play a key role in ensuring the delivery of reliable, secure ... Design and execute functional, integration, system, regression, and end-to-end testing activities.

Senior Test Engineer

Caseyville, IL · On-site

$107K - $195K/yr

As a Senior Test Engineer, you will play a key role in ensuring the delivery of reliable, secure ... Design and execute functional, integration, system, regression, and end-to-end testing activities.

As a Senior Test Engineer, you will play a key role in ensuring the delivery of reliable, secure ... Design and execute functional, integration, system, regression, and end-to-end testing activities.

Senior Test Engineer

Granite City, IL · On-site

$107K - $195K/yr

As a Senior Test Engineer, you will play a key role in ensuring the delivery of reliable, secure ... Design and execute functional, integration, system, regression, and end-to-end testing activities.

Senior Test Engineer

Collinsville, IL · On-site

$107K - $195K/yr

As a Senior Test Engineer, you will play a key role in ensuring the delivery of reliable, secure ... Design and execute functional, integration, system, regression, and end-to-end testing activities.

Senior Test Engineer

Hartford, IL · On-site

$107K - $195K/yr

As a Senior Test Engineer, you will play a key role in ensuring the delivery of reliable, secure ... Design and execute functional, integration, system, regression, and end-to-end testing activities.

Senior Test Engineer

East Carondelet, IL · On-site

$107K - $195K/yr

As a Senior Test Engineer, you will play a key role in ensuring the delivery of reliable, secure ... Design and execute functional, integration, system, regression, and end-to-end testing activities.

Senior Test Engineer

Venice, IL · On-site

$107K - $195K/yr

As a Senior Test Engineer, you will play a key role in ensuring the delivery of reliable, secure ... Design and execute functional, integration, system, regression, and end-to-end testing activities.

Senior Test Engineer

Madison, IL · On-site

$107K - $195K/yr

As a Senior Test Engineer, you will play a key role in ensuring the delivery of reliable, secure ... Design and execute functional, integration, system, regression, and end-to-end testing activities.

Showing results 21-40

Integration Test Engineer information

See Illinois salary details

$43.1K

$120.4K

$168.1K

How much do integration test engineer jobs pay per year?

As of Aug 10, 2026, the average yearly pay for integration test engineer in Illinois is $120,426.00, according to ZipRecruiter salary data. Most workers in this role earn between $100,800.00 and $135,700.00 per year, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive as an integration test engineer?

To thrive as an Integration Test Engineer, you need a strong background in software development, test methodologies, and system integration, often supported by a degree in computer science or a related field. Familiarity with test automation tools (such as Selenium or Jenkins), scripting languages, and continuous integration systems is typically required. Excellent analytical thinking, problem-solving abilities, and clear communication help you identify issues and collaborate effectively with development teams. These skills are crucial for ensuring seamless integration of software components, reducing defects, and delivering reliable systems.

What is an integration test engineer?

Integration Test Engineers are professionals who specialize in verifying that different software modules or components work together correctly as a complete system. They design, implement, and execute test procedures to identify issues that may arise when integrating various parts of an application or system. Their role is crucial in ensuring the quality and reliability of software products before they are released to users. Integration Test Engineers often collaborate with developers and system architects to define test plans and resolve any integration issues found during testing.

What is the difference between Integration Test Engineer vs Software Test Engineer?

AspectIntegration Test EngineerSoftware Test Engineer
Primary FocusTesting how different software modules work togetherTesting individual software components or features
Required SkillsKnowledge of integration processes, scripting, debuggingUnderstanding of testing methodologies, test case design
Work EnvironmentCollaborates with development teams during integration phasesWorks across various stages of software development, often independently
CertificationsISTQB, ISTQB Advanced Level, or similarISTQB, Certified Software Tester, or similar

While both roles focus on testing, Integration Test Engineers specialize in verifying the interaction between modules, whereas Software Test Engineers focus on testing individual components. Understanding these differences helps employers and candidates align skills with job requirements effectively.

What are some common challenges faced by integration test engineers when working with cross-functional teams?

Integration Test Engineers often work closely with development, QA, and operations teams to ensure that various software modules function seamlessly together. A common challenge is managing communication and expectations between teams, especially when modules are developed by different groups or vendors. Integration issues may arise due to inconsistencies in data formats, interfaces, or timing, requiring proactive problem-solving and clear documentation. Successful engineers excel at collaborating, coordinating test schedules, and providing detailed feedback to stakeholders, which helps streamline the integration process and resolve issues efficiently.
Infographic showing various Integration Test Engineer job openings in Illinois as of August 2026, with employment types broken down into 1% As Needed, 86% Full Time, 10% Part Time, 2% Contract, and 1% Nights. Highlights an 92% Physical, 1% Hybrid, and 7% Remote job distribution, with an average salary of $120,426 per year, or $57.9 per hour.

Senior Test Engineer

Leidos

Columbia, IL • On-site

$107K - $195K/yr

Full-time

Medical, Retirement, PTO

Posted 6 days ago


Leidos rating

8.3

Company rating: 8.3 out of 10

Based on 151 frontline employees who took The Breakroom Quiz

77th of 485 rated business services


Job description

Description

Job Description:

Are you passionate about ensuring mission-critical systems perform flawlessly when it matters most? Do you thrive in fast-paced, collaborative environments where quality and innovation go hand in hand? Leidos is seeking an experienced Senior Test Engineer to join the Chinook Program supporting an Intelligence Community customer. In this role, you’ll help deliver cutting-edge capabilities that directly support our nation’s intelligence mission while working alongside some of the industry’s brightest engineers, developers, and mission experts.

If you’re ready to make a meaningful impact through technical excellence and quality engineering, we’d love to hear from you.

As a Senior Test Engineer, you will play a key role in ensuring the delivery of reliable, secure, and high-performing software solutions. You’ll work as an integral member of a cross-functional Agile Scrum Team, developing and executing comprehensive test strategies that support rapid, iterative delivery while maintaining exceptional quality standards.

Position may be performed in the following locations below.  Please note Gaithersburg, MD is the program’s primary work location.

  • Gaithersburg, MD
  • Alexandria, VA
  • Chantilly, VA
  • Englewood, CO
  • St. Louis, MO
  • Tucson, AZ 
Clearance Level Required:

Active Top Secret/SCI with the ability to successfully pass a Polygraph examination.

Primary Responsibilities:

  • Lead planning, development, execution, and documentation of comprehensive test strategies for complex software systems.
  • Design and execute functional, integration, system, regression, and end-to-end testing activities.
  • Develop, maintain, and enhance automated test frameworks and test scripts to improve efficiency and coverage.
  • Collaborate daily with software engineers, product managers, system engineers, and Scrum Masters to define acceptance criteria and ensure quality is built into every release.
  • Analyze system requirements and technical documentation to create detailed test plans and test cases.
  • Identify, document, prioritize, and track software defects through resolution.
  • Support Agile development teams by participating in sprint planning, backlog refinement, daily stand-ups, and retrospectives.
  • Validate system performance, reliability, security, and scalability against mission requirements.
  • Generate test metrics, status reports, and quality assessments for program leadership and customer stakeholders.
  • Mentor junior test engineers and promote quality engineering best practices across the program.
  • Support Continuous Integration/Continuous Delivery (CI/CD) pipelines by integrating automated testing into deployment workflows.

Basic Qualifications:

  • US citizenship is required per contract.
  • Bachelor's degree in Computer Science, Engineering, Information Technology or related field and 8-12 years of prior relevant experience or Master’s with 6-10 years of prior relevant experience.
  • 8+ years of software testing or quality engineering experience.
  • Experience developing and executing automated test solutions using modern testing frameworks such as Cypress, Playwright, or equivalent.
  • Experience testing distributed, cloud-based, or enterprise applications.
  • Demonstrated experience creating and executing manual and automated test plans.
  • Experience with API testing using tools such as Postman or REST Assured.
  • Experience with CI/CD tools including Jenkins, GitLab, Azure DevOps, or similar platforms.
  • Experience with defect management tools such as Jira.
  • Ability to communicate results and issues to technical and non-technical customer stakeholders.

Preferred Qualifications:

  • Experience supporting DoD or Intelligence Community programs.
  • Familiarity with scripting languages including JavaScript, and Python.
  • Knowledge of containerized applications using Docker and Kubernetes.
  • Experience with performance testing tools such as JMeter or LoadRunner.
  • Experience with cloud technologies including AWS, Azure, or OpenShift
  • Knowledge of DevSecOps pipelines and automated quality assurance practices.
  • Experience working with modern software delivery environments.
  • Experience with geospatial applications or GEOINT data.
  • Certifications such as ISTQB, CASTP, CAST, CSTE, Security+, or similar.

#Chinook

#ASBA

If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares.

Original Posting:August 4, 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.

Pay Range:Pay Range $107,900.00 - $195,050.00

The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

About Leidos

Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual revenues of approximately $16.7 billion for the fiscal year ended January 3, 2025. For more information, visit www.Leidos.com.

Pay and Benefits

Pay and benefits are fundamental to any career decision. That's why we craft compensation packages that reflect the importance of the work we do for our customers. Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available at www.leidos.com/careers/pay-benefits.

Securing Your Data

Beware of fake employment opportunities using Leidos’ name. Leidos will never ask you to provide payment-related information during any part of the employment application process (i.e., ask you for money), nor will Leidos ever advance money as part of the hiring process (i.e., send you a check or money order before doing any work). Further, Leidos will only communicate with you through emails that are generated by the Leidos.com automated system – never from free commercial services (e.g., Gmail, Yahoo, Hotmail) or via WhatsApp, Telegram, etc. 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.

If you believe you are the victim of a scam, contact your local law enforcement and report the incident to the U.S. Federal Trade Commission.

Commitment to Non-Discrimination

All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.


What Leidos employees say

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About Leidos

Sourced by ZipRecruiter

At Leidos, we deliver innovative solutions through the efforts of our diverse and talented people who are dedicated to our customers' success. We empower our teams, contribute to our communities, and operate sustainable practices. Everything we do is built on a commitment to do the right thing for our customers, our people, and our community.

Industry

It services

Company size

10,000+ Employees

Headquarters location

Reston, VA, US

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