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Junior Full Stack Developer Jobs in Washington, IL

Caterpillar

Autonomy Development Engineer

Mossville, IL · On-site

$97K - $158K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Own feature or subsystem development across the full software lifecycle (design, implementation ... Provide peer support and informal mentorship to junior engineers What You Have: * Programming:

Carle Health

Radiology (Breast Imaging) - Physician

Normal, IL · On-site

$312K - $391K/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 ...

IMR Soft LLC

Smart COMM Developer

Peoria, IL · On-site

Technical Lead - Smart COMM Developer Location: Peoria, IL (Onsite) Industry: P&C Insurance We are looking for a Tech Lead who has extensive experience in GhostDraft to join our customer ...

Maui Jim

Senior Analytics Developer

Peoria, IL · Hybrid

$90K - $130K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

We work hard to develop our leaders who in turn develop their team members to reach their full ... To serve as the organization's lead analytics developer and advisor, responsible for owning and ...

MAUI JIM, Inc.

Senior Analytics Developer

Peoria, IL · On-site

$90K - $130K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

We work hard to develop our leaders who in turn develop their team members to reach their full ... To serve as the organization's lead analytics developer and advisor, responsible for owning and ...

Goli Tech

IBM BAW Developer

Bloomington, IL · On-site

This senior developer role will act as an BAW development subject matter expert with primary responsibilities including designing solutions, translating business requirements, developing, documenting ...

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 ...

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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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.

Autonomy Development Engineer

Caterpillar

Mossville, IL • On-site

$97K - $158K/yr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 21 hours 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:
Engineering
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.
The Autonomy Development Engineer develops and delivers production-quality software that enables autonomous and semi-autonomous functionality for heavy equipment in mining and construction environments.
This role operates with moderate independence, owning features or subsystems while contributing to system-level design decisions. The engineer applies strong software engineering practices to solve real-world problems and supports development across the full lifecycle, from concept through validation and release. The role collaborates closely with cross-functional teams and begins to influence technical direction while supporting the advancement of autonomy technologies into production environments.
Our CAT Technology Automation and Autonomy teams are focused on evolving the state of the art and bringing emerging automation & autonomy technology into the harsh production environments found on typical mining and construction jobsites. This team is supporting projects in our Mining Productivity & Detect Systems.
What You Will Do:
  • Develop production-quality C/C++ software for autonomy and automation systems
  • Own feature or subsystem development across the full software lifecycle (design, implementation, validation, release)
  • Machine Learning Model development and training; developing CNN Models, Python scripting
  • Contribute to requirements definition, architecture discussions, and technical trade-offs
  • Troubleshoot and resolve moderately complex software and system issues
  • Support verification, validation, and functional safety activities
  • Collaborate with software, systems, hardware, and validation teams
  • Communicate technical approaches, risks, and status to stakeholders
  • Provide peer support and informal mentorship to junior engineers

What You Have:
  • Programming:
    • Strong proficiency in C/C++
    • ML Engineering and Model development; AWS, Python, MLOps
    • Ability to interpret system designs and implement scalable solutions
    • Solid debugging, profiling, and performance optimization skills
  • Software Development Life Cycle:
    • Experience contributing to all phases of development lifecycle
    • Ability to independently execute development plans and adapt to changes
  • Problem Solving:
    • Solves complex but well-defined technical problems
    • Evaluates trade-offs and recommends solutions
    • Uses structured methodologies and data-driven analysis
  • Technical Troubleshooting:
    • Discovers, analyzes, and resolves software or application problems.
    • Analyzes code, logs, and current systems as part of advanced troubleshooting.
    • Records and reports specific technical problems, solving processes and tools that have been used.
  • Education Requirements: Bachelor's Degree in Computer Science, Engineering, or related field - or commensurate industry experience.

Consideration for Top Candidates:
  • Autonomy Feature Development
    • Experience developing autonomy domains such as planning, positioning, perception, or controls
    • Robotics frameworks (e.g., ROS)
    • Translating prototypes or research into production autonomy software
    • Experience with autonomous or semi-autonomous machine behavior
  • Autonomy Platform & Framework Development
    • Experience building autonomy frameworks, middleware, or shared libraries
    • Linux-based development environments
    • CI/CD pipelines, Git, and modern DevOps practices
    • Hardware/software integration at the platform level
    • Enabling multiple teams through reusable software foundations
  • Experience in Construction or Mining Industries preferred

Additional Information:
  • This position is to work onsite at our Mossville, IL office.
  • Relocation assistance may be available for this position.
  • Visa sponsorship may be available for this position
  • This position may require travel up to 15%
  • #LI

Summary Pay Range:
$97,530.00 - $158,480.00
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
Posting Dates:
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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