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Freelance Lab Test Engineer Jobs in Illinois (NOW HIRING)

Test Lab Technician

Morton, IL · On-site

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Test Lab Technician Location: Morton, IL(On-site) Company: Yinlun TDI LLC About Yinlun TDI LLC ... Headquartered in Houston, TX, Yinlun TDI LLC maintains sales and engineering facilities in ...

... to Product Engineer/Lab Manager Supervises n/a Mission Support engineering initiatives by preparing and executing tests utilizing data-acquisition systems to provide engineers with reliable ...

IEI Lab Technician Sr

Lockport, IL · On-site

$30 - $35/hr

  • Medical

  • Retirement

  • PTO

This role takes ownership of projects, executes UL testing based on engineering requests, and ... Define test requirements , determine methods, and coordinate setups, modifications, and ...

IEI Lab Technician Sr

Lockport, IL · On-site

$30 - $35/hr

  • Medical

  • Retirement

  • PTO

This role takes ownership of projects, executes UL testing based on engineering requests, and ... Define test requirements , determine methods, and coordinate setups, modifications, and ...

Battery Test and Validation Engineer II

Normal, IL

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Role Summary As a Battery Test and Validation Engineer II, you will be a key contributor to the ... Be the technical lead and provide direction to lab personnel (both in house and external) in ...

Battery Test and Validation Engineer II

Normal, IL · On-site

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Role Summary As a Battery Test and Validation Engineer II, you will be a key contributor to the ... You will work in a state- of-the-art battery lab where you will use your creativity to design and ...

Battery Test and Validation Engineer II

Normal, IL · On-site

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Role Summary As a Battery Test and Validation Engineer II, you will be a key contributor to the ... You will work in a state- of-the-art battery lab where you will use your creativity to design and ...

Test Technician

Highland, IL · On-site

$24 - $26/hr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Support and assist calibration lab with the calibration of equipment companywide. Reports to: Quality Engineering Manager Essential Duties * Wire and maintain test fixtures and test stands. * Perform ...

Lab Technician - Local

Round Lake, IL · On-site

$18.25 - $24.25/hr

Execute tests based on requirements from Product and Reliability Engineering. * Work under direction from the Reliability Test Manager, Lab Supervisor, and Test Engineers. * Set up and monitor ...

Electronic Hardware Validation Engineer

Chillicothe, IL · On-site

$80K - $105K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Document test results, findings, and technical reports. * Use lab equipment such as oscilloscopes ... Collaborate with cross-functional and global engineering teams. * Maintain lab equipment, test ...

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Showing results 41-60

Freelance Lab Test Engineer information

What is the difference between Freelance Lab Test Engineer vs Quality Control Technician?

AspectFreelance Lab Test EngineerQuality Control Technician
CredentialsRelevant certifications (e.g., ISO, ASTM), technical degreesTechnical diploma or associate degree, certifications optional
Work EnvironmentFreelance projects, laboratories, client sitesIn-house labs, manufacturing facilities, testing labs
Employer & IndustryIndependent contractors, consulting firms, various industriesManufacturers, quality departments, industrial sectors

Freelance Lab Test Engineers and Quality Control Technicians both work in laboratory settings and require technical certifications. However, Freelance Lab Test Engineers typically operate independently on diverse projects, while Quality Control Technicians are employed full-time within organizations to ensure product quality. The choice depends on whether you prefer freelance flexibility or a stable in-house role.

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

The most popular types of Lab Test Engineer jobs in Illinois are:

What are popular job titles related to Freelance Lab Test Engineer jobs in Illinois?

For Freelance Lab Test Engineer jobs in Illinois, the most frequently searched job titles are:

What job categories do people searching Freelance Lab Test Engineer jobs in Illinois look for?

The top searched job categories for Freelance Lab Test Engineer jobs in Illinois are:

What cities in Illinois are hiring for Freelance Lab Test Engineer jobs?

Cities in Illinois with the most Freelance Lab Test Engineer job openings:

Embedded Software Test Engineer 2 (On-Site)

Bel Fuse Inc.

Wheeling, IL • On-site

$85K - $128K/yr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 2 hours ago


Job description

The Embedded Software Test Engineer 2 is responsible for supporting the full software development lifecycle, including requirements definition, architecture and detailed design, implementation of embedded and application-level software, and comprehensive testing and validation. This role also contributes to the development of software tools and graphical user interfaces (GUIs) used for product testing, production support, and test data collection.
Are You Looking To:
  • Take on programming responsibilities including but not limited to: Linux, Python, C/C++, Lab Windows, STM32
  • Create and set up reliable and configurable modular software development environments
  • Develop test platforms and data capture systems, storing data to networked locations and databases
  • Setup test stations to assist with the programming and test of manufactured products
  • Create software packages that work as APIs for ease of customer integration and customization
  • Create demonstration GUI based programs to help advertise and promote dataMate products

Are You Ready To:
  • Interface directly with customers and internal teams and will require strong technical communication skills to clarify requirements and explain implementation details
  • Create detailed software requirements documentation based on customer and internal specifications, reviews and clarifications
  • Develop unit and integration level test plans and perform associated testing both on bench and in target applications
  • Coordinate software issue investigation and resolution including bench and module level troubleshooting both internally and onsite with customers
  • Maintain a system of version control and active repository of all software creations and revisions.
  • Completes other duties as assigned

What You'll Need:
  • Bachelor's (B.S.) in Computer Science or Electrical Engineering
  • 3+ years of embedded software implementation and design experience using C code, with a strong understanding of C code fundamentals and best practices, including keywords and pointers
  • 3+ years of hands-on experience with ARM-based board bring up, low-level hardware and driver installation, and debugging
  • 3+ years of experience with peripherals including SPI, UART, I2C, and eMMC
  • Experience with ethernet switch and command 10/100/1000/10G, including 7-layer Ethernet stack preferred
  • Familiarity with SGMII, GMII, and MII Host MAC/PHY interfaces preferred
  • Experience with Marvell, NXP, STMicroelectronics, and Raspberry Pi ARM-based processors preferred

What You'll Get:
  • Compensation range of $85,800 to $128,700. The compensation offered will take into account internal equity and may vary depending on the candidate's geographic region, jobrelated knowledge, skills, and experience among other factors
  • Participation in the annual bonus program
  • 401K and company match
  • Medical, Dental, Vision
  • Health Savings Account (HSA)
  • Flexible Spending Account (FSA)
  • Company Life Insurance
  • Short & Long-term disability
  • Paid Time Off (e.g., Vacation Benefits, Company Holidays, Sick Leave Benefits, Personal Days)
  • Pet Insurance
  • Tuition Reimbursement

To review a full listing of our benefits, please refer to the 2026 Bel Fuse Benefits Summary and Paid Time Off Benefits, or by visiting the Bel Fuse Careers page.
Work Opportunity
Bel will only employ those who are legally authorized to work in the United States. This is not a position for which sponsorship will be provided. Individuals with temporary visas such as E, F-1, H-1, H-2, L, B, J, or TN or who need sponsorship for work authorization now or in the future, are not eligible for hire.
Equal Opportunity Employer
Bel is an Equal Opportunity employer.