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Jr Developer Jobs in Ballwin, MO (NOW HIRING)

3B Staffing LLC

Java Developer

Lake Saint Louis, MO · On-site

$48.25 - $62.50/hr

Java Developer Location: St. Louis, MO Duration: 6 Months Senior Java/Spring boot Developer Senior developer with following skills (no hard and fast expectation for years of experience but 5+ is good ...

3B Staffing LLC

Java Developer

Lake Saint Louis, MO · On-site

$48.25 - $62.50/hr

Java Developer Location: St. Louis, MO Duration: 6 Months Senior Java/Spring boot Developer Senior developer with following skills (no hard and fast expectation for years of experience but 5+ is good ...

3B Staffing LLC

Software Developer

Saint Louis, MO · On-site

Software Developer - Contract-to-Hire Location: St. Louis, MO (USC/GC) local only Duration: 12-24 months Angular, Node.js, .NET (preferred), JavaScript/TypeScript, REST APIs, Web Application ...

3B Staffing LLC

Software Developer

Saint Louis, MO · On-site

Software Developer - Contract-to-Hire Location: St. Louis, MO (USC/GC) local only Duration: 12-24 months Angular, Node.js, .NET (preferred), JavaScript/TypeScript, REST APIs, Web Application ...

ACI Infotech

Java Developer

Lake Saint Louis, MO · On-site

$48.25 - $62.50/hr

Onsite Sr. Java Developer Location: St. Louis, MO In short, I require ::-- Java , spring boot , microservices and AWS ( cloud is compulsory , if not AWS , any other cloud will work). Responsibilities ...

Meridian Systematics

Software Developer

Saint Louis, MO · On-site

$90K - $110K/yr

Software Developer - Enterprise Geospatial Solutions Location: On-Site About the Role Join our Geospatial Services & Solutions (GSS) team to build high-performance, cost-effective software ...

Meridian Systematics

Software Developer

Saint Louis, MO · On-site

$90K - $110K/yr

Software Developer - Enterprise Geospatial Solutions Location: On-Site About the Role Join our Geospatial Services & Solutions (GSS) team to build high-performance, cost-effective software ...

The Timberline Group

.Net/Blazor Developer

Saint Louis, MO · On-site

$90 - $130/hr

Net/Blazor Developer, you will be responsible for analyzing complex software requirements to design and develop high quality components for N-tier systems. You will be expected to take a lead role ...

Meridian Systematics

Software Developer

Saint Louis, MO · On-site

$90K - $110K/yr

Vision insurance Software Developer - Enterprise Geospatial Solutions Location: On-Site About the Role Join our Geospatial Services & Solutions (GSS) team to build high-performance, cost-effective ...

Sovereign Technologies

C# Web Developer

Saint Louis, MO · On-site

As a Web Developer, work with members of a Scrum / Agile project team to develop the site concept, interface design, and architecture of the company website. Under general direction, you will design ...

1 point system

Java Developer

O Fallon, MO · On-site

$47.75 - $61.75/hr

The Sr. Software Engineer opportunity we have in St. Louis, MO. All candidates will be required to take a Glider exam , which is on recorded video and may be reviewed by the client , prior to ...

Sovereign Technologies

C# Web Developer

Saint Louis, MO · On-site

$70 - $90/hr

Programming in a thin GUI interface * Understanding and connecting to a normalized SQL structure * Detailing and documenting user specifications * Following detailed systems procedures * Coordinating ...

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Showing results 41-60

All JobsJr Developer JobsJr Developer Jobs in Ballwin, MO

Jr Developer information

See Ballwin, MO salary details

$23.3K

$86.5K

$133.7K

How much do jr developer jobs pay per year?

As of Sep 5, 2026, the average yearly pay for jr developer in Ballwin, MO is $86,522.00, according to ZipRecruiter salary data. Most workers in this role earn between $65,200.00 and $84,600.00 per year, depending on experience, location, and employer.

What is a jr developer?

Jr Developers, or Junior Developers, are entry-level professionals in the software development field. They typically have less experience than mid-level or senior developers and are responsible for writing, testing, and maintaining code under the guidance of more experienced team members. Jr Developers often work on smaller tasks, bug fixes, or simple features, and are expected to learn and grow their technical skills through mentorship and hands-on experience. Their role is essential for building a solid foundation in software development and contributing to the success of development projects.

What are the key skills and qualifications needed to thrive as a jr developer?

To thrive as a Jr Developer, you need a foundational understanding of programming languages (such as JavaScript, Python, or Java), basic software development principles, and often a relevant degree or coding bootcamp certification. Familiarity with version control systems like Git, IDEs, and workflow tools like Jira or Trello is typically required. Strong problem-solving skills, effective communication, and eagerness to learn help Jr Developers stand out in the workplace. These abilities are crucial for efficiently contributing to team projects, adapting to new technologies, and growing within a dynamic development environment.

What are some common challenges a jr developer might face when joining a new team, and how can they overcome them?

As a Jr Developer, one of the most common challenges is adapting to unfamiliar codebases and workflows. It can be daunting to understand existing projects and navigate team-specific tools and processes. To overcome this, Jr Developers should proactively seek help from team members, take thorough notes, and dedicate time to reviewing documentation and code. Embracing code reviews and asking questions will not only accelerate learning but also help build relationships within the team.

What is the difference between Jr Developer vs Junior Software Engineer?

AspectJr DeveloperJunior Software Engineer
Required CredentialsTypically an associate degree or coding bootcamp certificationUsually a bachelor's degree in computer science or related field
Work EnvironmentEntry-level, supervised tasks, learning-focusedSimilar entry-level environment, often with more complex project involvement
Employer & Industry UsageCommon in tech companies, startups, and IT departmentsUsed interchangeably in many companies, especially in software development teams
Search & Comparison IntentYes, often compared for entry-level rolesYes, often searched as a more formal or technical title

While both roles are entry-level software development positions, a Jr Developer often emphasizes basic coding tasks and learning, whereas a Junior Software Engineer may involve more structured engineering responsibilities. The titles are frequently used interchangeably, but understanding the specific job description can clarify expectations.

How hard is it to get a junior developer job?

Securing a junior developer position typically requires foundational programming skills, a portfolio of projects, and familiarity with relevant tools like Git and common programming languages. Entry-level roles are often competitive, but candidates with relevant internships, certifications, or coding bootcamp experience have better chances of being hired.

How to get hired as a junior developer?

To get hired as a junior developer, build a strong foundation in programming languages like JavaScript, Python, or Java, and create a portfolio of projects to demonstrate your skills. Gaining experience through internships, coding bootcamps, or contributing to open-source projects can improve your chances, along with obtaining relevant certifications and preparing for technical interviews.

What cities near Ballwin, MO are hiring for Jr Developer jobs?

Cities near Ballwin, MO with the most Jr Developer job openings:

Jr Developer jobs near you
Infographic showing various Jr Developer job openings in Ballwin, MO as of August 2026, with employment types broken down into 83% Full Time, 5% Part Time, and 12% Contract. Highlights an 84% Physical, 4% Hybrid, and 12% Remote job distribution, with an average salary of $86,522 per year, or $41.6 per hour.

Java Developer

3B Staffing LLC

Lake Saint Louis, MO • On-site

$48.25 - $62.50/hr

Full-time

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

Job description

Role: Java Developer
Location: St. Louis, MO
Duration: 6 Months

JOB DESCRIPTION:
Senior Java/Spring boot Developer Senior developer with following skills (no hard and fast expectation for years of experience but 5+ is good with them)

  • Hands on experience in implementing Micro services and Architecture using Apache open source projects like Mesos, Kafka,Cassandra, Hadoop.
  • Apache Tomcat, Spring Webservices, Spring Boot framework
  • Java and Web Services (RESTFul APIs)
  • Experience in implementing Docker containers for elastic scalability
  • Well versed with various exception handling techniques
  • Experience in developing, monitoring and logging framework
  • Experience in working in Telcos, especially DTV, Voice and HSD over DOCSIS type work.
  • Be able to create and interpret design documents based on specific design patterns Above all candidate should be Self-motivated and self-starter, be able to pick up and share knowledge swiftly, with "can do attitude" with good oral and written communication skills More specifically:
  • Use of Log4J or Logback (successor to Log4J) for generation of standardized disk log messages within services and applications
  • Experience creating test clients with SOAPUI
  • Experience performing performance testing of web services with JMeter and scripting input parameters from external input files
  • Experience with creating new web service and GUI app project trees using standard Maven 3.x directory tree layout
  • Experience using JUnit to create automated unit tests of all methods with web services using mock data

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