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Intern Java Backend Developer Jobs in Marthasville, MO

Lead Service Management Engineer

O Fallon, MO · On-site

$95K - $126K/yr

Extensive Data Engineering All About you - 8-12+ years in data engineering or backend engineering ... Strong skills in Python and/or Java/Scala. Deep experience with Spark, Hadoop, Hive/Impala, and ...

Extensive Data Engineering All About you - * 8-12+ years in data engineering or backend engineering ... Strong skills in Python and/or Java/Scala. Deep experience with Spark, Hadoop, Hive/Impala, and ...

Senior Software Engineer

O Fallon, MO · On-site

$114K - $151K/yr

Title and Summary Senior Software Engineer Who is Mastercard? We work to connect and power an ... Hands-on experience building backend platforms using Java and Spring (Spring Boot preferred)

Senior Software Engineer

O Fallon, MO · On-site

$114K - $151K/yr

Title and Summary Senior Software Engineer Who is Mastercard? We work to connect and power an ... Handson experience building backend platforms using Java and Spring (Spring Boot preferred)

Senior Software Engineer

O Fallon, MO · On-site

$114K - $151K/yr

Title and Summary Senior Software Engineer Who is Mastercard? Mastercard is a global technology ... Proven experience with backend development with JAVA required Familiarity with Spring Boot ...

Python, Java, or JavaScript * Advanced Programming: Go * Front-end and Back-end Frameworks: React, Angular, Vue.js, jQuery, Spring Boot, Django, Node.js, Flask, or Svelte * Cloud Development: AWS ...

QA Test Engineer

Chesterfield, MO · On-site

$40.75 - $55.75/hr

... Python and/or Java/TypeScript. • We are a platform team, testing APIs for high performance ... and backend teams. • Ownership mindset: building reusable test harnesses, improving quality ...

Senior Software Engineer

O Fallon, MO · On-site

$114K - $151K/yr

Strong programming and automation skills using Java, Groovy, or similar languages Experience ... scalable backend services, APIs, and distributed systems Experience designing, building, and ...

Senior Software Engineer

O Fallon, MO · On-site

$114K - $151K/yr

... Java, Groovy, or similar languages • Experience designing, building, testing, deploying, and ... supporting scalable backend services, APIs, and distributed systems • Experience designing ...

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Intern Java Backend Developer information

See Marthasville, MO salary details

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How much do intern java backend developer jobs pay per hour?

As of Aug 22, 2026, the average hourly pay for intern java backend developer in Marthasville, MO is $48.28, according to ZipRecruiter salary data. Most workers in this role earn between $42.93 and $55.67 per hour, depending on experience, location, and employer.

What does an intern Java backend developer do?

An Intern Java Backend Developer assists in building and maintaining the server-side logic of web applications using Java. They typically work under the guidance of senior developers, writing code, fixing bugs, and learning about frameworks like Spring or Hibernate. Their responsibilities often include database interaction, API development, and ensuring applications are scalable and efficient. Interns gain practical experience with industry-standard tools and workflows, helping prepare them for a full-time backend development role.

What kinds of projects and tasks can I expect as an intern Java backend developer?

As an Intern Java Backend Developer, you’ll typically work on tasks such as writing and testing APIs, fixing bugs, and implementing core backend features under the guidance of senior developers. You may also participate in code reviews, collaborate with frontend and QA teams, and help with database management or performance optimization. These projects are designed to give you hands-on experience with Java frameworks, version control systems, and agile development practices, all while contributing to real-world applications.

What are the key skills and qualifications needed to thrive as an intern Java backend developer, and why are they important?

To thrive as an Intern Java Backend Developer, you need a solid understanding of Java programming, object-oriented principles, and basic knowledge of backend frameworks like Spring, often supported by coursework or relevant projects. Familiarity with databases (such as MySQL), version control systems like Git, and build tools (e.g., Maven or Gradle) is typically expected. Strong problem-solving abilities, eagerness to learn, and effective communication skills help you collaborate and adapt in team environments. These skills and qualities are crucial for contributing to real projects, growing your technical expertise, and supporting overall team success.

What cities near Marthasville, MO are hiring for Intern Java Backend Developer jobs?

Cities near Marthasville, MO with the most Intern Java Backend Developer job openings:

Principal Software Engineer

Work Life Limbo

Chesterfield, MO • On-site

$133K - $179K/yr

Full-time

Re-posted yesterday


Job description

Seeking a Principal Software Engineer to build and modernize digital commerce and enterprise platforms. This role is ideal for someone who thrives in a small, fast-moving team, where you'll be responsible for both direct software development and design decisions, having a direct influence on shaping critical eCommerce, ERP, and PIM integration initiatives.
The ideal candidate will bring full life cycle experience developing scalable, performant applications (preference for C# and .NET ecosystem). The Engineer will be fluent navigating frontend and backend code, integrations and migrations/upgrades. Someone who can contribute toward architectural and design solutions is also ideal.
Responsibilities
  • Full stack development in a .NET and C# environment, including modern front end frameworks.
  • Guide and support efforts to modernize and modularize applications, including migration to modern JavaScript frameworks (React, Angular, or similar).
  • Contribute to and lead system design and architecture discussions to ensure modular, scalable solutions.
  • Implement and maintain integrations with Ecommerce, PIM, and ERP systems.
  • Build and manage CI/CD pipelines in Azure DevOps.
  • Utilize Azure services to deliver secure and scalable cloud-native solutions.
  • Produce and maintain technical documentation for systems, integrations, and architecture to ensure clarity, consistency, and long-term maintainability.

Qualifications
  • 7+ years of professional software engineering experience with .NET (or Java ecosystem) and modern JavaScript frameworks (React, Angular, etc.).
  • Strong background in Ecommerce solutions and ERP/PIM integrations.
  • Proficiency with relational databases (Oracle or other RDBMS).
  • Familiarity with modular design principles for building maintainable and extensible applications.
  • Hands-on experience with Azure services and Azure DevOps pipelines.
  • Strong communication and problem-solving skills.
  • Demonstrated ability to quickly learn and pivot to new languages, frameworks, or technologies.

Preferred Qualifications
  • Proven ability to lead modernization efforts (platform migrations, modular design initiatives).
  • Experience balancing hands-on coding with design/architecture leadership.
  • Familiarity with event-driven and API-first architectures.
  • Awareness of emerging technologies and judgment to determine appropriate adoption strategies.
  • Experience mentoring and guiding engineering teams.
  • Experience with .NET Blazor and Telerik is a plus.