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Junior Software Development Jobs in Missouri (NOW HIRING)

Navstar

Junior/Mid Software Engineer

Saint Louis, MO · On-site

G3 is a dynamic startup specializing in geospatial technology, modern application development, cloud services, and data analytics. As a software engineer, you will have the opportunity to work on ...

The Timberline Group

Senior Software Engineer

Saint Louis, MO · On-site

$119K - $157K/yr

If you also have hands-on experience with backend software development, we would like to meet you ... Ability to mentor more junior developers The Timberline Group Phone: 636-209-5537 PO Box 385 ...

CACI International

Software Engineer

Saint Louis, MO · On-site

$82K - $172K/yr

Mentor junior developers and provide technical guidance within the development team as needed. Required: Bachelor's degree in Computer Science, Software Engineering, Information Systems, or a related ...

New

Stellar IT Group

Software Engineer

Saint Louis, MO · On-site

Drive best practices in coding standards, architecture, and software development processes. * Mentor junior engineers and contribute to team growth through knowledge sharing and technical guidance.

Navstar

Software Engineer

Saint Louis, MO · On-site

Lead full-stack software development of enterprise applications and services supporting our ... Guide and mentor junior and mid-level engineers, enforce code quality, and lead peer reviews.

DLS Engineering

Principal Software Engineer

Saint Louis, MO · On-site

$150K - $157K/yr

... junior officer audience * Astute ability in writing test scripts, test-driven development, in an Agile software development environment, where built in automated test procedures are paramount and ...

Boeing

Experienced Software Engineer

Hazelwood, MO · On-site

This role will contribute to the development, maintenance, and enhancement of web-based ... Mentor junior engineers and contribute to knowledge sharing within the team Basic Qualifications ...

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Junior Software Development information

See Missouri salary details

$19.2K

$74K

$138.9K

How much do junior software development jobs pay per year?

As of Jun 28, 2026, the average yearly pay for junior software development in Missouri is $73,986.00, according to ZipRecruiter salary data. Most workers in this role earn between $51,381.00 and $88,829.00 per year, depending on experience, location, and employer.

What are some typical challenges faced by junior software developers in their first year, and how can they overcome them?

Junior software developers commonly encounter challenges such as adapting to new codebases, understanding team workflows, and managing task priorities. It can be overwhelming to navigate complex projects or unfamiliar tools, but seeking guidance from senior team members and actively participating in code reviews can help. Proactively asking questions, utilizing company documentation, and setting aside time for continuous learning are effective strategies to overcome these hurdles. Embracing a growth mindset and viewing mistakes as learning opportunities will also contribute to a smoother transition into the role.

Will AI replace junior dev?

AI tools can automate certain coding tasks and improve productivity for junior software developers, but they are unlikely to fully replace the role. Junior developers are essential for learning, problem-solving, and understanding project requirements, which AI cannot fully replicate. Instead, AI is expected to augment their work and help them develop skills more efficiently.

What is L1, L2, L3, and L4 developer?

In software development, L1, L2, L3, and L4 often refer to different levels of technical expertise and responsibility. L1 is typically entry-level or junior developers, L2 and L3 are mid-level and senior developers with increasing experience, and L4 may denote lead or architect roles. These levels help define expectations, skills, and compensation within a development team.

What do junior software developers do?

Junior software developers write, test, and maintain code for software applications under the supervision of senior developers. They often work with programming languages like Java, Python, or C++, and use development tools such as version control systems and IDEs to contribute to projects and improve their coding skills.

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

To thrive as a Junior Software Developer, you need a solid understanding of programming fundamentals, problem-solving abilities, and a relevant degree or coding bootcamp experience. Familiarity with languages such as Java, Python, or JavaScript, and version control systems like Git, is typically required. Strong communication, teamwork, and a willingness to learn are crucial soft skills for growth in this role. These skills and qualities are essential for delivering effective software solutions, collaborating with team members, and adapting to evolving technologies.

What is a Junior Software Developer?

A Junior Software Developer is an entry-level professional who assists in designing, coding, testing, and maintaining software applications under the supervision of more experienced developers. They typically work as part of a development team, learning best practices and gaining experience with various programming languages and tools. Junior developers are responsible for writing basic code, fixing bugs, and participating in code reviews while building their technical skills and knowledge of software development processes.

How much can a junior software developer make?

A junior software developer typically earns between $50,000 and $80,000 annually, depending on location, industry, and skills. Entry-level roles often require knowledge of programming languages like Java, Python, or JavaScript, and familiarity with development tools and frameworks.

What is the difference between Junior Software Development vs Junior Web Developer?

AspectJunior Software DevelopmentJunior Web Developer
Required SkillsProgramming languages, software design, debuggingHTML, CSS, JavaScript, basic backend knowledge
Work EnvironmentSoftware companies, tech startups, IT departmentsWeb agencies, tech companies, freelance projects
CertificationsComputer Science degree, coding bootcampsWeb development courses, certifications like HTML, CSS
Common UsageDeveloping software applications, systemsBuilding websites, web applications

Junior Software Development and Junior Web Developer roles share foundational programming skills and often require similar certifications. However, Junior Software Developers typically work on broader software projects across various platforms, while Junior Web Developers focus specifically on website and web application development. Both roles are common entry points in the tech industry, with overlapping skills but different specialization areas.

What are the most commonly searched types of Software Development jobs in Missouri? The most popular types of Software Development jobs in Missouri are:
What cities in Missouri are hiring for Junior Software Development jobs? Cities in Missouri with the most Junior Software Development job openings:
Junior Software Development jobs near you

Junior Software Engineer

Freedom Technology Solutions Group

Saint Louis, MO • Hybrid

Other

Posted 5 days ago

Job description

Freedom Technology Solutions Group is seeking a Software Engineer to support our client's intelligence analysis products and capabilities. This position involves providing software development capabilities to enhance existing and emerging client capabilities, including design and development, modernization of existing applications and services, and operations and sustainment. The role focuses on driving the client's adaptation of higher levels of automation and operational efficiency through agile development methodologies, rapid prototyping, and modern technology stacks. 

The Junior Software Developer applies expertise to multiple development assignments. This role requires originality in developing solutions and provides latitude in designing methodologies and approaches. 

Responsibilities:

  • Design, develop, and enhance backend services using Java, JavaScript, and Python. 
  • Build and maintain secure, automated DevSecOps pipelines for CI/CD.
  • Lead containerized solution deployments across hybrid and cloud (AWS) environments.
  • Implement and optimize geospatial data processing and API integrations.
  • Troubleshoot, debug, and improve system performance.
  • Review code contributions.
  • Contribute to system architecture discussions and recommend improvements.
  • Provide input on deliverables, schedules, and performance metrics.
  • Participate in rapid prototyping to quickly iterate and improve solutions
  • Utilize modern technology stacks to meet client needs
  • Implement CI/CD pipelines using GitLab
  • Collaborate with cross-functional teams to deliver high-quality software solutions 

Key Technologies:

  • Linux
  • Java, JavaScript, Python
  • Containerization (Docker, OpenShift, Kubernetes, ...)
  • AWS Services
  • GitLab
  • Apache Spark, Glue, and other ETL processes/procedures
  • Data Types: Structured and Unstructured, Parquet, JSON, XML, etc. 

Required Qualifications:

  • Active TS/SCI clearance (eligible for CI Poly).
  • 0-3 years software development experience.
  • Proficiency in Java, JavaScript, and Python.
  • Experience with DevSecOps pipelines, Agile methodologies, and CI/CD tools (e.g., GitLab).
  • Hands-on experience with AWS services (Lambda, ECS, S3, RDS, etc.).
  • Skilled in containerization technologies (Docker, Kubernetes, OpenShift).
  • Experience with geospatial data frameworks and APIs (e.g., GeoServer, PostGIS, ArcGIS).
  • Using GitLab for code source repository and using GitLab CI/CD
  • Developing customized code, scripts, modules, macro procedures, or libraries for specialized spatial analysis functions using languages such as Python, Java, JavaScript, PHP, C, C++, C#, Perl, or similar 

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