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Java Junior Jobs in Edwardsville, IL (NOW HIRING)

Equifax, Inc.

Senior Data Engineer

Saint Louis, MO · On-site

$103K - $140K/yr

Act as a mentor to junior engineers within the Data Platform team and also the broader D&A ... Experience programming in Java * Experience scaling Airflow * Experience with dbt * DevOps / CICD ...

Leidos

Mid-Level Software Engineer

Madison, IL · On-site

$87K - $157K/yr

Participate in code reviews and mentor junior developers as needed. * Resolve various tasks as ... Python, Java, or JavaScript * Advanced Programming: Go * Front-end and Back-end Frameworks: React ...

Leidos

Mid-Level Software Engineer

Collinsville, IL · On-site

$87K - $157K/yr

Participate in code reviews and mentor junior developers as needed. * Resolve various tasks as ... Python, Java, or JavaScript * Advanced Programming: Go * Front-end and Back-end Frameworks: React ...

Boeing

Senior DevSecOps Engineer

Berkeley, MO · On-site

$107K - $147K/yr

Mentors and advises junior teammates and development teams on best practices in DevSecOps ... C++, C#, Java, or Python * Experience with cloud platforms * Experience with Agile software ...

Leidos

Mid-Level Software Engineer

Hartford, IL · On-site

$87K - $157K/yr

Participate in code reviews and mentor junior developers as needed. * Resolve various tasks as ... Python, Java, or JavaScript * Advanced Programming: Go * Front-end and Back-end Frameworks: React ...

Leidos

Mid-Level Software Engineer

Belleville, IL · On-site

$87K - $157K/yr

Participate in code reviews and mentor junior developers as needed. * Resolve various tasks as ... Python, Java, or JavaScript * Advanced Programming: Go * Front-end and Back-end Frameworks: React ...

Leidos

Mid-Level Software Engineer

Saint Louis, MO · On-site

$87K - $157K/yr

Participate in code reviews and mentor junior developers as needed. * Resolve various tasks as ... Python, Java, or JavaScript * Advanced Programming: Go * Front-end and Back-end Frameworks: React ...

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Java Junior information

See Edwardsville, IL salary details

$57.2K

$100.2K

$151.1K

How much do java junior jobs pay per year?

As of Aug 20, 2026, the average yearly pay for java junior in Edwardsville, IL is $100,229.00, according to ZipRecruiter salary data. Most workers in this role earn between $70,800.00 and $99,900.00 per year, depending on experience, location, and employer.

What is a Java Junior?

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 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 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 cities near Edwardsville, IL are hiring for Java Junior jobs?

Cities near Edwardsville, IL with the most Java Junior job openings:

Java Junior jobs near you

Senior Fullstack Software Engineer

Ascension

Saint Louis, MO • Remote

$128K - $178K/yr

Full-time

Medical, PTO

This job post has expired today. Applications are no longer accepted.

Ascension Healthcare rating

7.0

Company rating: 7.0 out of 10

Based on 1,041 frontline employees who took The Breakroom Quiz

414th of 889 rated healthcare providers

Job description

Your future role at a glance

Location: Remote

Department: Studio Engineering Product Delivery

Schedule: Full-time

Salary: $128,054.78 - $178,500.96 per year

#LI-Remote

How you'll make an impact in this role
  • Lead the design and delivery of secure, high-performance Java microservices and cloud-native applications on Google Cloud Platform to power critical patient care experiences.
  • Build modern, responsive front-end user interfaces using Next.js, React, and TypeScript to ensure intuitive digital journeys for clinicians and patients.
  • Design, deploy, and manage scalable RESTful APIs and distributed systems following strict test-driven development and architectural best practices.
  • Conduct thorough code reviews and enforce automated unit testing to guarantee platform security, high availability, and code quality.
  • Mentor junior engineers through paired programming and design discussions to foster technical growth and engineering excellence across the team.
What minimum qualifications you'll need

Education:

  • High school diploma/GED with 2 years of experience, or Associate's degree, or Bachelor's degree required.

Work Experience:

  • 1 year of experience required.
  • 4 years of experience preferred.
  • 2 years of leadership or management experience preferred.
What additional requirements you'll need
  • 5 years of professional fullstack software development experience building cloud-native applications in an Agile environment.
  • Expert-level proficiency in Java and Spring Boot paired with strong hands-on experience in Next.js or React.js, JavaScript, and TypeScript.
  • Documented experience building microservices and managing cloud infrastructure within Google Cloud Platform (GCP).
Life at Ascension: Where purpose meets opportunity

Ascension is a leading nonprofit Catholic health system with a culture and associate experience grounded in service, growth, care and connection. We empower our 97,000+ associates to bring their skills and expertise every day to reimagining healthcare, together. Recognized as one of the Best 150+ Places to Work in Healthcare and a Military-Friendly Gold Employer, you'll find an inclusive and supportive environment where your contributions truly matter.

Equal employment opportunity employer

Equal employment opportunity employer

Ascension provides Equal Employment Opportunities (EEO) to all associates and applicants for employment without regard to race, color, religion, sex/gender, sexual orientation, gender identity or expression, pregnancy, childbirth, and related medical conditions, lactation, breastfeeding, national origin, citizenship, age, disability, genetic information, veteran status, marital status, all as defined by applicable law, and any other legally protected status or characteristic in accordance with applicable federal, state and local laws. For further information, view the EEO Know Your Rights (English) poster or EEO Know Your Rights (Spanish) poster.

Fraud prevention notice

Prospective applicants should be vigilant against fraudulent job offers and interview requests. Scammers may use sophisticated tactics to impersonate Ascension employees. To ensure your safety, please remember: Ascension will never ask for payment or to provide banking or financial information as part of the job application or hiring process. Our legitimate email communications will always come from an @ascension.org email address; do not trust other domains, and an official offer will only be extended to candidates who have completed a job application through our authorized applicant tracking system.

E-Verify statement

Employer participates in the Electronic Employment Verification Program. Please click here for more information.

Benefits

Paid time off (PTO)Various health insurance options & wellness plansRetirement benefits including employer match plansLong-term & short-term disabilityEmployee assistance programs (EAP)Parental leave & adoption assistanceTuition reimbursementWays to give back to your community

Benefit options and eligibility vary by position. Compensation varies based on factors including, but not limited to, experience, skills, education, performance, location and salary range at the time of the offer.

Employment Type: FULL_TIME

What Ascension Healthcare employees say

Pay

Benefits

Hours and flexibility

Workplace

Get the full story on Breakroom

Ascension logo

About Ascension

Sourced by ZipRecruiter

Ascension is a leading non-profit, faith-based national health system made up of over 150,000 associates and 2,600 sites of care, including more than 140 hospitals and 40 senior living communities in 19 states.

Industry

Health care and social assistance and outpatient health care

Company size

10,000+ Employees

Headquarters location

St. Louis, MO, US

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