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Junior Full Stack Developer Jobs in Washington, IL

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 ... Mentor junior engineers and contribute to a culture of technical excellence and continuous learning.

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 ... Mentor junior engineers and contribute to a culture of technical excellence and continuous learning.

Avani Technology Solutions, Inc.

Java Developer

Peoria, IL · On-site

$50 - $64.75/hr

Peoria, IL Duration: 12 months Client wants a Strong front end Mid/Sr level Java Developer Must have Angular 2, Typescript, Bootstrap, Spring MVC and Full Stack Development experience. Please Fill up ...

Varsity Tutors

Web Development Tutor

Normal, IL · Remote

$18 - $40/hr

Ability to explain client-server architecture, MVC patterns, and authentication while preparing students for full-stack development roles and software engineering careers. * Conceptual Teaching ...

TEKsystems

Pega Developer

Bloomington, IL

$50 - $65/hr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

They need to have a strong Pega developer with Pega Skills, Rest API and Pega Senior Systems ... As an industry leader in Full-Stack Technology Services, Talent Services, and real-world ...

State Farm

Software Engineer

Bloomington, IL · On-site

  • Medical

  • Dental

  • Vision

  • Retirement

Full Stack Development experience * Proficiency in JavaScript, TypeScript, C# Experience with ... React.js, Angular * Experience with version control systems (Git) DevOps & Infrastructure:

Varsity Tutors

JavaScript Tutor

Normal, IL · Remote

$18 - $40/hr

Ability to explain callback functions, scope and hoisting, and the event loop while preparing students for web development careers and full-stack engineering coursework. * Conceptual Teaching ...

TEKsystems

AI Machine Learning Engineer

Bloomington, IL · Remote

$50 - $70/hr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

... developer tooling (e.g., VS Code extensions, CLI tools) • Strong problem-solving skills and ... As an industry leader in Full-Stack Technology Services, Talent Services, and real-world ...

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All JobsFull Stack Developer JobsJunior Full Stack Developer JobsJunior Full Stack Developer Jobs in Washington, IL

Junior Full Stack Developer information

See Washington, IL salary details

$22.6K

$83.9K

$129.7K

How much do junior full stack developer jobs pay per year?

As of Aug 18, 2026, the average yearly pay for junior full stack developer in Washington, IL is $83,919.00, according to ZipRecruiter salary data. Most workers in this role earn between $63,200.00 and $82,100.00 per year, depending on experience, location, and employer.

What is a junior full stack developer?

A Junior Full Stack Developer is an entry-level software engineer who is capable of working on both the front-end and back-end components of web applications. They typically have foundational knowledge of programming languages such as JavaScript, HTML, CSS, as well as experience with frameworks like React, Node.js, or similar technologies. Junior Full Stack Developers collaborate with more experienced developers to build, test, and maintain web applications. Their responsibilities often include writing code, debugging, and learning best practices under supervision. This role is ideal for individuals looking to grow their skills in all areas of web development.

What does a junior full stack developer do?

A full stack developer works on both the user-facing and back-end elements of websites and applications. A junior full stack developer works under the supervision of a senior developer. In this position, your duties include handling coding responsibilities for front-end, user-facing elements. You use JavaScript, HTML, and CSS for this part of the job. You also use languages such as Python, SQL, and PHP for the back-end system of a website, including the database, cloud network, and security features. In addition to coding, you test and debug your developments and work with other team members using development strategies and methodologies.

What are the key skills and qualifications needed to thrive as a junior full stack developer, and why are they important?

To thrive as a Junior Full Stack Developer, you need a solid understanding of front-end and back-end programming languages (such as JavaScript, HTML/CSS, and a back-end language like Python or Node.js), along with a relevant degree or coding bootcamp certification. Familiarity with frameworks (like React or Angular), version control systems (such as Git), and basic database management is typically required. Strong problem-solving skills, adaptability, and effective teamwork set standout developers apart. These skills are crucial for building robust, user-friendly applications and collaborating efficiently in fast-paced development environments.

What are some common challenges junior full stack developers face during their first year on the job?

Junior Full Stack Developers often encounter challenges such as balancing the demands of both front-end and back-end development, adapting to new frameworks or tools, and managing time effectively across multiple projects. Collaborating with more experienced team members and understanding how to communicate technical concepts clearly can also be a learning curve. Regular code reviews and mentorship are commonly provided to help junior developers grow their skills and confidence in a supportive team environment.

What is the difference between Junior Full Stack Developer vs Front End Developer?

AspectJunior Full Stack DeveloperFront End Developer
Required SkillsHTML, CSS, JavaScript, basic backend knowledge, frameworks like React or AngularHTML, CSS, JavaScript, UI/UX design, frameworks like React, Angular, or Vue
Work EnvironmentCollaborates on both client-side and server-side projects, often in startups or tech companiesFocuses on user interface and experience, primarily in web development teams
Common UsageEntry-level role for full stack development in various industriesSpecialized role focusing on front-end development in web projects

The main difference is that a Junior Full Stack Developer works on both front-end and back-end tasks, while a Front End Developer specializes in creating and optimizing user interfaces. The Junior Full Stack Developer has a broader skill set, whereas the Front End Developer focuses more on design and user experience.

More about Junior Full Stack Developer jobs

What cities near Washington, IL are hiring for Junior Full Stack Developer jobs?

Cities near Washington, IL with the most Junior Full Stack Developer job openings:

Junior Full Stack Developer jobs near you
Infographic showing various Junior Full Stack Developer job openings in Washington, IL as of August 2026, with employment types broken down into 83% Full Time, 12% Part Time, 4% Contract, and 1% Nights. Highlights an 84% Physical, 4% Hybrid, and 12% Remote job distribution, with an average salary of $83,919 per year, or $40.3 per hour.

Full Stack Developer

Caterpillar

East Peoria, IL • On-site

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 18 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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