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Full Stack Engineer Intern Jobs in Peoria, IL (NOW HIRING)

Caterpillar

Full Stack Developer

East Peoria, IL · On-site

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Caterpillar is seeking a Full Stack developer to join Financial Systems Data team. In this role you will play a key role in developing secure, high-performance applications tailored for financial ...

RLI Corp.

Sr. Software Engineer (.Net Full Stack)

Peoria, IL · On-site

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

The ideal candidate is a strong full-stack engineer with experience building scalable, cloud-ready applications using .NET, Blazor, RESTful APIs, and microservices. You will collaborate with ...

RLI Corp.

Sr. Software Engineer (.Net Full Stack)

Peoria, IL · On-site

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

The ideal candidate is a strong full-stack engineer with experience building scalable, cloud-ready applications using .NET, Blazor, RESTful APIs, and microservices. You will collaborate with ...

Danaher

Software Engineer Internships

Peoria, IL · On-site

As a Software Engineering Intern at Danaher, you'll work alongside experienced engineers developing ... Contributions to coding forums like Stack Overflow or other collaborative development communities ...

TEKsystems

Project Coordinator

Peoria, IL

$20 - $45/hr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

... engineering, research and development, financial systems and product roll-out, etc. or any other ... As an industry leader in Full-Stack Technology Services, Talent Services, and real-world ...

Carle Health

Radiology (Breast Imaging) - Physician

Peoria, IL · On-site

$314K - $392K/yr

  • Medical

  • Dental

  • Life

  • Retirement

  • PTO

Full Suite: Health/Dental/Life, 403-B & 457 plans with match, and paid malpractice with tail ... The Technology Stack (No Lag, No Workarounds) We provide a premium home workstation and a private ...

Carle Health

Radiology (Breast Imaging) - Physician

Peoria, IL · On-site

$314K - $392K/yr

  • Medical

  • Dental

  • Life

  • Retirement

  • PTO

Full Suite: Health/Dental/Life, 403-B & 457 plans with match, and paid malpractice with tail ... The Technology Stack (No Lag, No Workarounds) We provide a premium home workstation and a private ...

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All JobsFull Stack Engineer Intern JobsFull Stack Engineer Intern Jobs in Peoria, IL

Full Stack Engineer Intern information

See Peoria, IL salary details

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How much do full stack engineer intern jobs pay per hour?

As of Aug 17, 2026, the average hourly pay for full stack engineer intern in Peoria, IL is $24.94, according to ZipRecruiter salary data. Most workers in this role earn between $20.29 and $28.32 per hour, depending on experience, location, and employer.

What is a full stack engineer intern?

Full Stack Engineer Interns are students or recent graduates who assist in developing both the front-end and back-end components of web applications. They work under the guidance of experienced engineers to gain hands-on experience with programming languages, frameworks, and tools used throughout the software development lifecycle. Their responsibilities often include writing code, testing applications, fixing bugs, and collaborating with teams to deliver functional software. Through this internship, they develop practical skills and a deeper understanding of how web systems work end-to-end.

What are the key skills and qualifications needed to thrive as a full stack engineer intern?

To thrive as a Full Stack Engineer Intern, you need a solid understanding of programming languages like JavaScript, HTML, CSS, and at least one backend language, often supported by coursework or relevant project experience. Familiarity with frameworks such as React or Angular, backend systems like Node.js or Django, version control (Git), and basic database management is typically expected. Strong problem-solving skills, eagerness to learn, and effective communication help interns stand out in fast-paced development teams. These skills and qualities are essential for contributing to real-world projects, collaborating effectively, and accelerating professional growth in a technical environment.

What types of projects and technologies can I expect to work with as a full stack engineer intern?

As a Full Stack Engineer Intern, you can expect to work on a variety of projects ranging from building user interfaces with front-end frameworks like React or Angular to developing backend services using technologies such as Node.js, Python, or Java. Interns often assist with integrating APIs, database management, and testing features in both development and production environments. You'll likely collaborate closely with designers, product managers, and other developers, gaining exposure to the complete software development lifecycle. This hands-on experience is designed to help you build practical skills and contribute meaningful code to real applications.

What is the difference between Full Stack Engineer Intern vs Software Developer Intern?

AspectFull Stack Engineer InternSoftware Developer Intern
Required CredentialsTypically pursuing or recently completed a degree in Computer Science or related fieldTypically pursuing or recently completed a degree in Computer Science or related field
Work EnvironmentHands-on experience with both front-end and back-end development in a team settingFocus on coding, debugging, and developing software applications, often in a specific area
Employer & Industry UsageTech companies, startups, and organizations seeking versatile interns with full-stack skills

The Full Stack Engineer Intern role involves working across both front-end and back-end technologies, providing a broad development experience. In contrast, a Software Developer Intern may focus more narrowly on specific software components or applications. Both roles are valuable for gaining industry experience, but the Full Stack Engineer Intern position offers a more comprehensive view of the entire development process.

What are popular job titles related to Full Stack Engineer Intern jobs in Peoria, IL?

For Full Stack Engineer Intern jobs in Peoria, IL, the most frequently searched job titles are:

What job categories do people searching Full Stack Engineer Intern jobs in Peoria, IL look for?

The top searched job categories for Full Stack Engineer Intern jobs in Peoria, IL are:

What cities near Peoria, IL are hiring for Full Stack Engineer Intern jobs?

Cities near Peoria, IL with the most Full Stack Engineer Intern job openings:

Full Stack Engineer Intern jobs near you
Infographic showing various Full Stack Engineer Intern job openings in Peoria, IL as of August 2026, with employment types broken down into 67% Full Time, and 33% Contract. Highlights an 100% In-person job distribution, with an average salary of $51,872 per year, or $24.9 per hour.

Full Stack Developer

Caterpillar

East Peoria, IL • On-site

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 17 days ago

Caterpillar Inc. rating

7.4

Company rating: 7.4 out of 10

Based on 480 frontline employees who took The Breakroom Quiz

287th of 490 rated machine equipment manufacturers

Job description

Career Area:
Technology, Digital and Data
Job Description:
Your Work Shapes the World at Caterpillar Inc.
When you join Caterpillar, you're joining a global team who cares not just about the work we do - but also about each other. We are the makers, problem solvers, and future world builders who are creating stronger, more sustainable communities. We don't just talk about progress and innovation here - we make it happen, with our customers, where we work and live. Together, we are building a better world, so we can all enjoy living in it.
Your Impact Shapes the World at Caterpillar Inc
When you join Caterpillar, you're joining a global team who cares not just about the work we do - but also about each other. We are the makers, problem solvers and future world builders who are creating stronger, more sustainable communities. We don't just talk about progress and innovation here - we make it happen, with our customers, where we work and live. Together, we are building a better world, so we can all enjoy living in it.
About Caterpillar
Caterpillar Inc. is the world's leading manufacturer of construction and mining equipment, off-highway diesel and natural gas engines, industrial gas turbines and diesel-electric locomotives. For nearly 100 years, we've been helping customers build a better, more sustainable world and are committed and contributing to a reduced-carbon future. Our innovative products and services, backed by our global dealer network, provide exceptional value that helps customers succeed.
Job Summary:
  • Caterpillar is seeking a Full Stack developer to join Financial Systems Data team. In this role you will play a key role in developing secure, high-performance applications tailored for financial services, while collaborating with cross-functional teams to deliver impactful solutions.

What you will do:
  • Develop and maintain secure, scalable web applications using React.js/Next.js and Python.
  • Design and implement backend services, APIs, and microservices with a focus on performance and reliability.
  • Deploy and manage applications on Microsoft Azure, leveraging services like Azure Functions and App Services.
  • Build and maintain CI/CD pipelines using Azure DevOps for efficient and safe code delivery.
  • Collaborate with product managers, designers, and other developers to define and deliver new features.
  • Ensure code quality through version control, code reviews, and automated testing.
  • Troubleshoot and optimize performance across the full stack.
  • Communicate technical concepts clearly to stakeholders and contribute to business value.

Degree Requirement:
  • Bachelor's or Master's in Computer Science or Software Engineering, or Equivalent education with at least 8 Years of experience

Core Skills Required:
  • Core Application Systems: Knowledge of major production application systems used for delivery of services to internal and external clients; ability to leverage major production application systems in diverse situations.
  • Problem Solving: Knowledge of approaches, tools, techniques for recognizing, anticipating, and resolving organizational, operational or process problems; ability to apply knowledge of problem solving appropriately to diverse situations.
  • Application Design, Architecture: Knowledge of basic activities and deliverables of application design; ability to utilize application design methodologies, tools and techniques to convert business requirements and logical models into a technical application design.
  • Implementation: Knowledge of how to run applications for organizations; ability to implement application software within an organization and help end-users perform specific tasks (ex: accounting or graphic design).
  • Requirements Analysis: Knowledge of tools, methods, and techniques of requirement analysis; ability to elicit, analyze and record required business functionality and non-functionality requirements to ensure the success of a system or software development project.
  • System and Technology Integration: Knowledge of the features and facilities of systems; ability to integrate and communicate among applications, databases and technology platforms.
  • System Testing: Knowledge of system and software testing; ability to design, plan and execute system testing strategies and tactics to ensure the quality of software at all stages of the system life cycle.

What a Top Candidate Will Bring
  • Proven full-stack engineering capability, delivering modern, scalable applications across a mature tech stack (including Next.js and internal platforms such as SvelteKit or Nuxt), with strong backend development experience using modern frameworks to build performant, reliable, and data-driven services.
  • Deep Microsoft Azure expertise, with hands-on experience designing, deploying, and supporting solutions across Azure Functions, App Services, storage, databases, and DevOps tooling, complemented by strong observability and monitoring capabilities using Azure Monitor and Application Insights to ensure application health, performance, and reliability.
  • A mature DevOps and cloud engineering mindset, with practical experience implementing CI/CD pipelines and Infrastructure as Code using ARM templates, Bicep, or Terraform.
  • Experience with containerized and cloud-native architectures, including the use of Docker and Kubernetes to support scalable, resilient applications.
  • A strong focus on security and quality, applying best practices in cloud and web security, clean coding standards, version control, and Git-based workflows.
  • Strong communicator and collaborative partner, leveraging AI-enabled development practices to work effectively across engineering, product, and stakeholder teams, while continuously improving ways of working and embracing modern tools, frameworks, and engineering practices to deliver better outcomes.

Additional Info:
  • This position can be based in Peoria, IL, or Irving, TX
  • Domestic relocation assistance is available for those who qualify
  • Sponsorship is not available for all type of visa
  • International and Domestic travel up to 5%
  • This role requires onsite presence 5 days per week.

Final details:
Please frequently check the email associated with your application, including the junk/spam folder, as this is the primary correspondence method. If you wish to know the status of your application - please use the candidate log-in on our career website as it will reflect any updates to your status.
Summary Pay Range:
$112,710.00 - $183,140.00
Compensation and benefits offered may vary depending on multiple individualized factors, job level, market location, job-related knowledge, skills, individual performance and experience. Please note that salary is only one component of total compensation at Caterpillar.
Benefits:
Subject to plan eligibility, terms, and guidelines. This is a summary list of benefits.
  • Medical, dental, and vision benefits*
  • Paid time off plan (Vacation, Holidays, Volunteer, etc.)*
  • 401(k) savings plans*
  • Health Savings Account (HSA)*
  • Flexible Spending Accounts (FSAs)*
  • Health Lifestyle Programs*
  • Employee Assistance Program*
  • Voluntary Benefits and Employee Discounts*
  • Career Development*
  • Incentive bonus*
  • Disability benefits
  • Life Insurance
  • Parental leave
  • Adoption benefits
  • Tuition Reimbursement

* These benefits also apply to part-time employees
This position requires working onsite five days a week.
Relocation is available for this position.
Visa Sponsorship is not available for this position.
Posting Dates:
August 11, 2026 - August 21, 2026
Any offer of employment is conditioned upon the successful completion of a drug screen.
Caterpillar is an Equal Opportunity Employer, Including Veterans and Individuals with Disabilities. Qualified applicants of any age are encouraged to apply.
Not ready to apply? Join our Talent Community.

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