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$58.5K

$102.4K

$154.4K

How much do java junior jobs pay per year?

As of May 31, 2026, the average yearly pay for java junior in Roxana, IL is $102,442.00, according to ZipRecruiter salary data. Most workers in this role earn between $72,400.00 and $102,100.00 per year, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive as a Java Junior, and why are they important?

To thrive as a Java Junior, you need a solid understanding of Java programming, object-oriented principles, and a relevant degree or coursework in computer science. Familiarity with development tools like Eclipse or IntelliJ IDEA, version control systems (such as Git), and basic knowledge of databases are typically expected. Strong problem-solving abilities, eagerness to learn, and good communication skills help juniors excel in collaborative and fast-paced environments. These skills enable efficient coding, effective teamwork, and smooth adaptation to evolving project requirements.

What are some typical challenges a Java Junior might face when starting out, and how can they overcome them?

As a Java Junior, you may encounter challenges like understanding complex codebases, adapting to agile development practices, and debugging unfamiliar issues. It's common to feel overwhelmed at first, but asking questions, participating in code reviews, and pairing with more experienced developers can accelerate your learning. Regularly practicing coding, studying documentation, and using collaboration tools will also help you quickly become a productive member of the team.

What are Java Junior developers?

Java Junior developers are entry-level software engineers who specialize in programming using the Java language. They typically have a foundational understanding of Java syntax, object-oriented programming concepts, and basic software development practices. Java Juniors often assist with coding, debugging, and testing under the supervision of more experienced developers, while continuously learning and building their technical skills. Their responsibilities may also include maintaining existing applications and writing simple features as part of a development team.

What is the difference between Java Junior vs Java Developer?

AspectJava JuniorJava Developer
Required Experience0-2 years2+ years
CertificationsOptional, entry-level certificationsOptional, advanced certifications
Work EnvironmentTraining, mentorship-focusedProject-driven, independent
ResponsibilitiesLearning, basic coding tasksDesign, develop, maintain Java applications

Java Junior roles are entry-level positions focused on learning and supporting Java projects, often requiring minimal experience. Java Developers have more experience, handle complex tasks, and contribute to project design and implementation. The transition from Java Junior to Java Developer involves gaining skills, experience, and certifications over time.

What are popular job titles related to Java Junior jobs in Roxana, IL? For Java Junior jobs in Roxana, IL, the most frequently searched job titles are:
What cities near Roxana, IL are hiring for Java Junior jobs? Cities near Roxana, IL with the most Java Junior job openings:
Java Junior jobs near you
Full Stack Developer (Backend Emphasis)

Full Stack Developer (Backend Emphasis)

Agile Defense

Scott Air Force Base, IL • On-site, Remote

$110K - $150K/yr

Other

Medical, Life, Retirement, PTO

Posted 17 days ago

Job description

About Agile Defense
 
At Agile Defense we know that action defines the outcome and new challenges require new solutions. That's why we always look to the future and embrace change with an unmovable spirit and the courage to build for what comes next.
 
Our vision is to bring adaptive innovation to support our nation's most important missions through the seamless integration of advanced technologies, elite minds, and unparalleled agility-leveraging a foundation of speed, flexibility, and ingenuity to strengthen and protect our nation's vital interests.

Requisition #: 1604

Job Title: Full Stack Developer (Backend Emphasis)

Location: Hybrid, Scott AFB, IL

Clearance Level: Secret, Must Have Ability to Obtain a Clearance

Required Certification(s): Ability to obtain Security+

Job Description

We are seeking a Senior Full Stack Developer (Backend Emphasis) to support a command and control system for the Mobility Air Force. This role focuses on designing and maintaining mission critical backend services in Java and .NET, building and securing RESTful APIs, and implementing cloud native patterns in Amazon GovCloud. You will work across the entire stack, but your primary responsibility will be backend architecture, service reliability, data integrity, and integration with cloud services. 

  • You will operate within an Agile environment and mentor junior developers while contributing to evolving DevSecOps pipelines and secure deployment practices. 
  • What you will do 
  • Design, implement, test, and deploy backend features using Java and .NET in AWS GovCloud. 
  • Lead the development of RESTful services, API endpoints, and backend integration patterns. 
  • Architect and implement microservices, serverless functions, and containerized workloads using AWS services such as Lambda, ECS, EKS, Fargate, and API Gateway. 
  • Build and optimize data models, SQL queries, and relational database operations. 
  • Participate in architecture reviews, design sessions, and backlog refinement. 
  • Conduct code reviews and refactor existing backend components for scalability, maintainability, and security. 
  • Integrate backend services into CI/CD pipelines with automated builds, tests, and scans. 
  • Ensure secure coding practices and interpret output from static and dynamic security analysis tools. 
  • Use scripting languages, including Python and Bash, to automate operational and deployment tasks. 
  • Troubleshoot complex backend issues across application logic, integrations, data stores, and cloud resources. 
  • Mentor team members in API design, backend architecture, and secure coding patterns.
Education and Background
  • Minimum Experience: 5+ years of professional development, including at least 3 years of Java development. 
  • Experience owning backend services or components in production. 
  • Bachelor's degree in Computer Science, Engineering, or related field, or equivalent experience. 
  • Ability to obtain or maintain a government security clearance. 
  • Prior DoD or federal experience is strongly preferred.
Years of Experience
5 years
Required Skills
  • Deep experience with Java and .NET development in production environments. 
  • Strong understanding of REST API design, service versioning, and integration testing. 
  • Experience deploying and managing backend services in AWS using Lambda, ECS, ECR, CloudFormation, RDS, S3, CloudWatch, and IAM. 
  • Experience with microservices or modular service architectures. 
  • Strong debugging skills in distributed systems. 
  • Experience working within DoD or regulated environments with security compliance requirements. 
  • Comfortable working with minimal day to day direction and accountable for end to end delivery.
Preferred Skills
  • Java (Spring Boot or similar frameworks) and .NET (Core or Framework). 
  • SQL and relational database design. 
  • Linux administration and scripting. 
  • Containerization with Docker and orchestration patterns. 
  • CI/CD tooling such as Jenkins, GitHub Actions, or GitLab CI. 
  • Cloud networking, IAM policies, and secure cloud deployment models. 
  • Basic front end technologies for full stack integration, including HTML, CSS, and JavaScript. 
  • OpenAPI Spec 3.x and automated code generation 
  • Agile methodology.
Working Conditions
This position is eligible for remote work in the St. Louis area. However, the position requires a government security clearance, so candidates must be U.S. citizens and eligible for work without a visa sponsorship.
Benefits
In addition, Agile Defense invests in its employees beyond just compensation.  Agile's benefits offerings include, dependent upon position, Health Insurance, Life Insurance, Paid Time Off, Holiday Pay, short-term and long-term Disability, Retirement and Learning and Development opportunities as well as other optional benefit elections.
$110,000 - $150,000 a year
Our Core Values
 
Employees of Agile Defense are our number one priority, and the importance we place on our culture here is fundamental. Our culture is alive and evolving, but it always stays true to its roots. Here, you are valued as a family member, and we believe that we can accomplish great things together. Agile Defense has been highly successful in the past few years due to our employees and the culture we create together. 
 
What makes us Agile? We call it the 6Hs, the values that define our culture and guide everything we do. Together, these values infuse vibrancy, integrity, and a tireless work ethic into advancing the most important national security and critical civilian missions. It's how we show up every day. It's who we are.
 
  • Happy - Be Infectious. Happiness multiplies and creates a positive and connected environment where motivation and satisfaction have an outsized effect on everything we do.
  • Helpful - Be Supportive. Being helpful is the foundation of teamwork, resulting in a supportive atmosphere where collaboration flourishes, and collective success is celebrated.
  • Honest - Be Trustworthy. Honesty serves as our compass, ensuring transparent communication and ethical conduct, essential to who we are and the complex domains we support.
  • Humble - Be Grounded. Success is not achieved alone, humility ensures a culture of mutual respect, encouraging open communication, and a willingness to learn from one another and take on any task.
  • Hungry - Be Eager. Our hunger for excellence drives an insatiable appetite for innovation and continuous improvement, propelling us forward in the face of new and unprecedented challenges.
  • Hustle - Be Driven. Hustle is reflected in our relentless work ethic, where we are each committed to going above and beyond to advance the mission and achieve success.
 
Equal Opportunity Employer/Protected Veterans/Individuals with Disabilities
We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.
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