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Trainee Junior Javascript Developer Jobs in Missouri

Compunnel

Software Engineer IV

Kansas City, MO · On-site

... junior developers, sharing knowledge and promoting best practices. Percentage of time spent on ... CSS, JavaScript). • Strong understanding of object-oriented programming (OOP) principles and ...

D2 Technical Services

AWS Cloud Engineer

Saint Louis, MO · On-site

$130 - $140K/hr

Mentoring junior developers * Writing and reading unit tests; understanding code-quality analysis concepts * Writing and debugging Javascript, Typescript, or closely-related language * Developing ...

Abile Group, Inc

Cloud Engineer

Springfield, MO · On-site

$150 - $200/hr

Mentors junior developers. * Writes and reads unit tests; understanding code-quality analysis concepts. * Writes and debuggs Javascript, Typescript, or closely-related language. * Developes ...

Abile Group, Inc.

Cloud Engineer

Saint Louis, MO

$54.25 - $72.50/hr

Mentors junior developers. * Writes and reads unit tests; understanding code-quality analysis concepts. * Writes and debuggs Javascript, Typescript, or closely-related language. * Developes ...

D2 Technical Services

AWS Cloud Engineer

Saint Louis, MO · On-site

$130 - $140K/hr

Mentoring junior developers * Writing and reading unit tests; understanding code-quality analysis concepts * Writing and debugging Javascript, Typescript, or closely-related language * Developing ...

MasterCard

Senior Software Engineer - Java

O Fallon, MO · Hybrid

$116K - $153K/yr

Mentor junior and mid-level engineers, share technical knowledge, and contribute to a culture of ... React, Angular, TypeScript, JavaScript, HTML5 / CSS3 oData & Integration: SQL, PostgreSQL / Oracle ...

Mastercard, Inc.

Senior Software Engineer - Java

O Fallon, MO · On-site

$116K - $153K/yr

... junior and mid-level engineers, share technical knowledge, and contribute to a culture of ... React, Angular, TypeScript, JavaScript, HTML5 / CSS3 oData & Integration: SQL, PostgreSQL / Oracle ...

teKnoluxion Consulting LLC

Cloud Engineer

Springfield, MO · On-site

$125 - $150/hr

Mentoring junior developers * Writing and reading unit tests; understanding code-quality analysis concepts * Writing and debugging Javascript, Typescript, or closely-related language * Developing ...

teKnoluxion

Cloud Engineer

Saint Louis, MO · On-site

$122K - $147K/yr

Mentoring junior developers * Writing and reading unit tests; understanding code-quality analysis concepts * Writing and debugging Javascript, Typescript, or closely-related language * Developing ...

GDIT

Cloud Engineer

Saint Louis, MO · On-site

$125K - $170K/yr

Mentoring junior developers * Writing and reading unit tests; understanding code-quality analysis concepts * Writing and debugging Javascript, Typescript, or closely-related language * Developing ...

USM

Pega developer - ONLY GC or USC

Saint Louis, MO

$54.75 - $71.75/hr

Mentor junior developers and supervise implementation of designed solution. Experience/Education ... JavaScript, Ajax, etc.) Experience working with web services Development experience with Unix-based ...

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Trainee Junior Javascript Developer information

What does a trainee junior JavaScript developer do?

A Trainee Junior Javascript Developer is an entry-level professional who assists in building and maintaining web applications using JavaScript. They typically work under the guidance of more experienced developers, learning to write clean code, debug simple issues, and use frameworks like React or Node.js. This role is designed to help individuals develop foundational programming skills and gain practical experience in real-world software development projects.

What types of projects can a trainee junior JavaScript developer expect to work on during their first year?

As a Trainee Junior Javascript Developer, you will typically start by assisting with smaller tasks such as bug fixes, writing unit tests, or implementing basic features under the guidance of senior developers. Over time, you'll gain exposure to collaborative projects like developing user interfaces, integrating APIs, or maintaining front-end codebases using frameworks such as React or Vue.js. These projects help you build technical skills while learning best practices in code review, version control, and agile workflows. Regular mentorship and code feedback are common, fostering rapid professional growth in a supportive team environment.

What are the key skills and qualifications needed to thrive as a trainee junior JavaScript developer, and why are they important?

To thrive as a Trainee Junior Javascript Developer, you need a solid understanding of JavaScript fundamentals, HTML, CSS, and a relevant degree or coding bootcamp experience. Familiarity with version control systems like Git, basic knowledge of frameworks such as React or Node.js, and exposure to development environments are typically required. Strong problem-solving skills, eagerness to learn, and effective communication set candidates apart in this role. These skills and qualities are crucial for adapting to fast-paced development teams and building a foundation for future growth in software engineering.

What is the difference between Trainee Junior Javascript Developer vs Junior Web Developer?

AspectTrainee Junior Javascript DeveloperJunior Web Developer
Required CredentialsBasic coding knowledge, often in training or bootcampSome experience or formal education in web development
Work EnvironmentInternship or entry-level training programFull-time role in a development team
Employer UsageTraining programs, startups, or companies hiring entry-levelEstablished companies, agencies, or startups

In summary, a Trainee Junior Javascript Developer is typically in training or an internship, focusing on learning JavaScript basics, while a Junior Web Developer has more experience and handles broader web development tasks. Both roles serve as entry points but differ in experience level and responsibilities.

What are popular job titles related to Trainee Junior Javascript Developer jobs in Missouri?

For Trainee Junior Javascript Developer jobs in Missouri, the most frequently searched job titles are:

What job categories do people searching Trainee Junior Javascript Developer jobs in Missouri look for?

The top searched job categories for Trainee Junior Javascript Developer jobs in Missouri are:

What cities in Missouri are hiring for Trainee Junior Javascript Developer jobs?

Cities in Missouri with the most Trainee Junior Javascript Developer job openings:

Trainee Junior Javascript Developer jobs near you
Infographic showing various Trainee Junior Javascript Developer job openings in Missouri as of July 2026, with employment types broken down into 85% Full Time, 3% Part Time, 1% Temporary, and 11% Contract. Highlights an 82% Physical, 3% Hybrid, and 15% Remote job distribution.

TEST ENGINEER with Security Clearance

CEdge Software Consultants

Saint Louis, MO • On-site

Other

Re-posted 13 days ago

Job description

CEdge has an opportunity for a Test Systems Engineer (MID), located in St Louis, MO. If you are ready to work alongside World Renowned Technology experts, and carry the skills below, this is the opportunity that will inevitably take your career to unbelievable levels! ***This position requires a TS/SCI Security Clearance*** TO01, Test Systems Engineer Responsibilities Senior-level Test Systems Engineers assist in leading Application, System and Integration Testing teams performing test and evaluation across the National System of Geospatial-intelligence (NSG), Allied System of Geospatial-intelligence (ASG) and Federal Agencies to ensure timely and accurate GEOINT. Duties include: · Guides Mid-level ​and Junior-level system engineers performing test and evaluation across the National System of Geospatial-intelligence (NSG), Allied System of Geospatial-intelligence (ASG) and Federal Agencies. · Performs testing of applications and application programming interfaces (APIs) in DevOps pipelines utilizing quality assurance measures established by the government and industry best practices. · Performs independent integration testing on the system software or hardware to determine the system’s compliance with specified requirements. · Plans and executes manual tests, and automated test scripts using scripting and programming languages. · Supports technical investigations for defects discovered during test activities. Required: · Bachelor’s degree or higher in Engineering, Computer Science, Information Technology, Management Information Systems, or related STEM degree program, or 6 years of experience as a Test Systems Engineer. · 6 years of experience with test management and defect tracking tools. · Experience with three or more of the following; JMeterand, Jenkins, Docker, Postman, Swagger, Nexus, Apigee or GitHub/GitLab (or equivalent software packages), Java, Bash, Curl, XML, JSON, SQL, Python, Javascript, and AWS and C2S. · Experience with traditional, Agile, and DevOps development practices and associated testing strategies. · TS/SCI clearance adjudication or ability to obtain SCI and pass a polygraph. Desired: · Master’s degree in Computer Science, Information Technology, Management Information Systems, or related STEM degree program. · Working knowledge of Model Based Systems Engineering, processes, tools and languages. · Working knowledge of Software Development Frameworks.

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