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Jr Developer Jobs in St Louis, MO (NOW HIRING)

Atria Group LLC

Java Developer

Saint Louis, MO

$49.50 - $64.25/hr

Our company provides application analysis, design, development and programming, software engineering, systems development, testing, integration, and implementation, and management consulting services ...

MarketVolt

Software Developer

Saint Louis, MO · On-site

NET Software Developer / Software Engineer / Web Application Developer MarketVolt, LLC, a digital marketing software and services firm based in St. Louis, seeks a creative software developer who can ...

Marketvolt

Software Developer

Saint Louis, MO · On-site

NET Software Developer / Software Engineer / Web Application Developer MarketVolt, LLC, a digital marketing software and services firm based in St. Louis, seeks a creative software developer who can ...

Build-A-Bear Workshop

Developer

Saint Louis, MO · On-site

As a Developer, you will play a pivotal role in transforming business needs into innovative, scalable software solutions. In this hands-on, individual contributor role, you'll drive the software ...

Equifax, Inc.

Mulesoft Developer

Saint Louis, MO · On-site

Our software engineering positions provide you the opportunity to join a team of talented engineers working with leading-edge technology. You are ideal for this position if you are a forward-thinking ...

Stifel

Developer II

Saint Louis, MO

The Developer II will participate in all phases of the development process including design, integration and maintenance while observing proper behaviors, patterns, and standards. The Developer II ...

Stifel

Developer II

Saint Louis, MO

The Developer II will begin to learn cross-disciplinary development skills in a full-stack environment. The Developer II will ensure that Stifel's best practices are used in all development projects ...

Atria Group LLC

Java Developer

Saint Louis, MO · On-site

$49.50 - $64.25/hr

Our company provides application analysis, design, development and programming, software engineering, systems development, testing, integration, and implementation, and management consulting services ...

Meridian Systematics

Software Developer

Saint Louis, MO · On-site

$90K - $110K/yr

Software Developer Position Overview We are seeking an experienced Software Developer to support the Geospatial Services & Solutions (GSS) business area in delivering high-quality, cost-effective ...

Booz Allen Hamilton

Agentic AI Developer

O Fallon, IL · On-site

$99K - $225K/yr

R0241538 Agentic AI Developer The Opportunity: As an experienced engineer, you know that machine learning is critical to understanding and processing massive datasets. Your ability to conduct ...

Meridian Systematics

Software Developer

Saint Louis, MO · On-site

$90K - $110K/yr

Software Developer Position Overview We are seeking an experienced Software Developer to support the Geospatial Services & Solutions (GSS) business area in delivering high-quality, cost-effective ...

Unique System Skills LLC

Rust Developer

Saint Louis, MO · On-site

We have an opening for Rust Developer at St. Louis, MO. Kindly apply with your updated resume if you are interested. Please find the job details below: Position: Rust Developer Location: St. Louis ...

New

Meridian Systematics

Software Developer

Saint Louis, MO · On-site

$90K - $110K/yr

Training & development Software Developer Position Overview We are seeking an experienced Software Developer to support the Geospatial Services & Solutions (GSS) business area in delivering high ...

Carter Support Services

Software Developer

Saint Louis, MO · On-site

$70 - $90/hr

Software Developer Company: Carter Support Services Location: Houston Position Summary Carter Support Services is seeking a skilled and motivated Software Developer to design, develop, and maintain ...

New

Stifel

Developer II

Saint Louis, MO · On-site

The Developer II will begin to learn cross-disciplinary development skills in a full-stack environment. The Developer II will ensure that Stifel's best practices are used in all development projects ...

Meridian Systematics

Software Developer

Saint Louis, MO · On-site

$110 - $170/hr

Parental leave Software Developer Position Overview We are seeking an experienced Software Developer to support the Geospatial Services & Solutions (GSS) business area in delivering high-quality ...

Apex Informatics

Java Developer

Saint Louis, MO · On-site

$49.50 - $64.25/hr

Java Developer Location: St Louis, MO * 10+ years of hands-on software engineering experience * Excellent hands-on experience in Java * Experience in developing REST services. * Experience in unit ...

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Showing results 21-40

All JobsJr Developer JobsJr Developer Jobs in St. Louis, MO

Jr Developer information

See St Louis, MO salary details

$23.3K

$86.5K

$133.7K

How much do jr developer jobs pay per year?

As of Aug 21, 2026, the average yearly pay for jr developer in St. Louis, MO is $86,504.00, according to ZipRecruiter salary data. Most workers in this role earn between $65,100.00 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 are popular job titles related to Jr Developer jobs in St. Louis, MO?

For Jr Developer jobs in St. Louis, MO, the most frequently searched job titles are:

What job categories do people searching Jr Developer jobs in St. Louis, MO look for?

The top searched job categories for Jr Developer jobs in St. Louis, MO are:

What cities near St. Louis, MO are hiring for Jr Developer jobs?

Cities near St. Louis, MO with the most Jr Developer job openings:

Jr Developer jobs near you
Infographic showing various Jr Developer job openings in St. Louis, MO as of August 2026, with employment types broken down into 81% Full Time, 5% Part Time, and 14% Contract. Highlights an 83% Physical, 5% Hybrid, and 12% Remote job distribution, with an average salary of $86,504 per year, or $41.6 per hour.

Java Developer

Atria Group LLC

Saint Louis, MO

$49.50 - $64.25/hr

Full-time

Re-posted 24 days ago

Job description

Company Description

We specialize in Staffing, Consulting, Software Development, and Training along with IT services to small to medium size companies. AG's primary objective is to help companies maximize their IT resources and meet the ever-changing IT needs and challenges.

In addition, AG offers enterprise resource planning and enterprise application integration, supply-chain management, e-commerce solutions, and B2B public exchanges and B2B process integration solutions. Our company provides application analysis, design, development and programming, software engineering, systems development, testing, integration, and implementation, and management consulting services to various clients - including governmental agencies and private companies - throughout the United States and India.

We provide these services in multiple computing environments and use technologies such as client/server architecture, object-oriented programming languages and tools, distributed database management systems, state-of-the-art networking, and communications infrastructures. Our honest and realistic approach to recruiting dictates that AG does not entice or lure engineers from their employers. We represent only high caliber technical professionals who have committed to making a change required by career.

Job Description

Required Skills:

Java, JPA/Hibernate, spring (core), REST

Ideal Skills:

JAX-RS, JSON, HTML5, CSS, jQuery, backbone.js, bootstrap.js, Agile (Scrum)

Essential Duties: Identifies, analyzes, and documents business/technical requirements and systems specifications. Creates and performs software coding. Creates and enforces software quality standards, implements/deploys information systems. Evaluates vendor-supplied applications and deploys/integrates vendor-supplied software. Generates suggestions for process/product improvement. Communicates status of assigned work to management and follows practices and procedures covered by precedents, standards or policies. Develops an awareness of systems and operating area interrelationships. Ensures the efficient development of optimal information systems through a variety of duties including management of tasks within schedule and budgetary constraints, coordination of development/implementation efforts across disciplines, generation/presentation of users training material/development plans, and expansion of knowledge applicable to technical platforms and applications. Leads teams of developers/integrators and assists in the development of programmers/analysts through coaching and training.

Qualifications

Would prefer a bachelor's degree and five + years of experience.

Unigroup is in need of a senior Java developer. They will be part of a 10+ person team developing on a large rewrite of their enterprise system along with smaller projects as well. This individual will perform at the highest technical level of all phases of systems analysis and programming activities. This individual will also be needed to provide guidance and training for other developers. 

Additional Information
  1. Good comm skills are a big priority
  2. Duration: Long term

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