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Junior Javascript Jobs in Missouri (NOW HIRING)

Interco

Junior Software Developer

Saint Louis, MO

$60K - $65K/yr

Interco is seeking a talented Junior Software Developer with a strong background in JavaScript and React.js to contribute to an innovative Enterprise Resource Planning (ERP) project. In this role ...

Interco

Junior Software Developer

Saint Louis, MO · On-site

$60K - $65K/yr

Interco is seeking a talented Junior Software Developer with a strong background in JavaScript and React.js to contribute to an innovative Enterprise Resource Planning (ERP) project. In this role ...

Jobtailor

Senior Engineer

California, MO · On-site

$150 - $190/hr

Conduct design sessions, code reviews, and mentor junior engineers to elevate engineering quality ... Strong proficiency in front-end technologies, including HTML5, CSS3, JavaScript (ES6+), ReactJS ...

Staffingine LLC

WCS Developer

Springfield, MO · On-site

Provide technical leadership and mentoring to junior engineers Required Skills: * Minimum 8 years ... HTML/HTML5,J2EE,Java,JavaScript,MySQL,Apache Struts, HCL Commerce, Java Server Pages (JSP ...

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Junior Javascript information

See Missouri salary details

$7

$25

$44

How much do junior javascript jobs pay per hour?

As of Aug 11, 2026, the average hourly pay for junior javascript in Missouri is $25.28, according to ZipRecruiter salary data. Most workers in this role earn between $15.34 and $31.11 per hour, depending on experience, location, and employer.

What are some common challenges a junior JavaScript developer might face when joining a new development team?

As a Junior JavaScript Developer, you may encounter challenges such as adapting to unfamiliar codebases, learning team-specific workflows, and understanding version control practices like Git. Collaborating with more experienced developers can be both a learning opportunity and a challenge, especially when it comes to grasping advanced JavaScript concepts or frameworks used by the team. To succeed, it's helpful to communicate openly, ask questions, and take advantage of any onboarding resources or mentorship programs your company may offer.

What is the difference between Junior Javascript vs Junior Frontend Developer?

AspectJunior JavascriptJunior Frontend Developer
Required SkillsBasic JavaScript, HTML, CSSJavaScript, HTML, CSS, UI/UX basics
CertificationsNone typically requiredOptional certifications in web development
Work EnvironmentEntry-level projects, learning-focusedDeveloping user interfaces, collaborating with designers
Industry UsageCommonly used in tech companies, startupsSame as Junior Javascript, often overlapping roles

Junior Javascript focuses on core JavaScript skills, while Junior Frontend Developer encompasses a broader skill set including UI/UX basics. Both roles are entry-level and often overlap, but the Frontend Developer role may involve more design and user interface tasks.

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

To thrive as a Junior JavaScript Developer, a solid understanding of JavaScript fundamentals, HTML, and CSS is essential, often supported by a relevant degree or coding bootcamp experience. Familiarity with code editors (like VS Code), version control systems (such as Git), and frameworks like React or Angular is commonly required. Strong problem-solving skills, attention to detail, and effective communication help junior developers collaborate and learn quickly within teams. These abilities enable efficient code development, integration, and adaptation in dynamic software environments.

What does a junior JavaScript developer do?

A Junior JavaScript Developer is responsible for assisting in the development of web applications and websites using the JavaScript programming language. They typically work under the guidance of more experienced developers and help with writing, testing, and debugging code. Their tasks often involve implementing interactive features, fixing bugs, and learning modern JavaScript frameworks and tools. This role is ideal for those who are starting their career in web development and want to build their skills in front-end or full-stack development.
What are the most commonly searched types of Javascript jobs in Missouri? The most popular types of Javascript jobs in Missouri are:
What are popular job titles related to Junior Javascript jobs in Missouri? For Junior Javascript jobs in Missouri, the most frequently searched job titles are:
What job categories do people searching Junior Javascript jobs in Missouri look for? The top searched job categories for Junior Javascript jobs in Missouri are:
What cities in Missouri are hiring for Junior Javascript jobs? Cities in Missouri with the most Junior Javascript job openings:
Junior Javascript jobs near you
Infographic showing various Junior Javascript job openings in Missouri as of August 2026, with employment types broken down into 1% Internship, 80% Full Time, 5% Part Time, and 14% Contract. Highlights an 76% Physical, 4% Hybrid, and 20% Remote job distribution, with an average salary of $52,592 per year, or $25.3 per hour.

Junior Software Engineer 621

Freedom Technology Solutions Group

Saint Louis, MO • Hybrid

Full-time

Re-posted 18 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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