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Frontend Web Developer Javascript Jobs in Missouri

Sonsoft Inc

UI Mobile Web Developer

Saint Louis, MO · On-site

$48.50 - $63.25/hr

At least 2 years of experience in JavaScript frameworks and library. At least 2 years experience in Production support and performance engineering. At least 1 year of experience in Responsive Web ...

Rootshell Inc

Front End Developer

Maryland Heights, MO · On-site

$100K - $116K/yr

Design code of the web application. HTML5, JavaScript, CSS3 * Maintain quality and ensure ... Familiar with the technical implications of Front-End Development Environments. * Responsible and ...

Premier Tech Inc

Front-end Developer

Kansas City, MO · Remote

$55 - $65/hr

Consultant Front-End Developer Contract: 6 months (July 7 December 18, 2026) Location: Remote ... Strong JavaScript/TypeScript, HTML, and CSS * Proven track record taking designs from mockup to ...

New

De Lage Landen International B.V.

$80K - $93K/yr

NodeJS, JavaScript (ES6+), TypeScript * State management (Redux, Vuex, NgRx, etc.) * Responsive UI, ... Solid understanding of web application security and secure coding practices. Soft Skills & Business ...

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Frontend Web Developer Javascript information

What is the difference between Frontend Web Developer Javascript vs Frontend Web Designer?

AspectFrontend Web Developer JavascriptFrontend Web Designer
Primary FocusWriting code, implementing functionality, and developing interactive features using JavaScriptDesigning visual layouts, user interfaces, and ensuring aesthetic appeal
Skills & CertificationsJavaScript, HTML, CSS, frameworks like React or Angular, coding skillsDesign tools (Adobe XD, Figma), HTML, CSS, UX principles
Work EnvironmentDevelopment teams, coding environments, collaborative projectsDesign studios, client meetings, creative projects

While both roles work on the frontend, Frontend Web Developers Javascript focus on coding and functionality, whereas Frontend Web Designers prioritize visual design and user experience. They often collaborate but serve different core functions in web development projects.

What cities in Missouri are hiring for Frontend Web Developer Javascript jobs? Cities in Missouri with the most Frontend Web Developer Javascript job openings:
Frontend Web Developer Javascript jobs near you
Automation Team Developer

Automation Team Developer

Catapult Solutions Group

Monett, MO • On-site

$136K/yr

Contractor

Posted 6 days ago

Job description

SOFTWARE DEVELOPER - AUTOMATION TEAM
Department: QA Automation Engineering
Location: Remote (within 70 miles of Allen, TX preferred)
Role Type: Contract-to-Hire (6 months) | W2
ABOUT OUR CLIENT
We're partnering with a well-established financial technology company that powers the banking and financial services industry. Founded in 1976, they serve 9,000+ clients with 7,000+ employees and generate $2.39 billion in annual revenue. They're known for their collaborative culture, commitment to engineering excellence, and investment in cutting-edge technology-including AI tooling, cloud modernization, and homegrown platforms built to scale. Their company philosophy: Do the right thing, do whatever it takes, and have fun.
JOB DESCRIPTION
Join a small, collaborative QA Automation Team and take ownership of a custom in-house testing platform that powers how the QA team automates and executes test cases. You'll work on a true development role-writing code 100% of the time across a full-stack environment. This team of five operates under a supervisor who prioritizes mentorship and growth, so if you're a junior or mid-level developer, you'll have direct guidance from senior leadership while building real impact.
You'll be designing, developing, and supporting a custom web application that's mission-critical to the company's QA operations. You'll enhance existing software to boost stability and usability, collaborate with the QA team to refine testing scenarios, and partner with development teams to drive resolution of issues discovered during testing. This is an opportunity to build something tangible and be part of a purpose-driven engineering culture.
WHAT YOU'LL BE RESPONSIBLE FOR
  • Design, develop, test, and support a custom internal web application used by the QA team
  • Enhance existing software to improve stability, usability, accessibility, and feature set
  • Collaborate with the QA Test Team to develop test scenarios and generate simulated transactional data
  • Interact with Subject Matter Experts (SMEs) and development teams to refine the QA automation environment
  • Partner with development teams to track and drive resolution of issues discovered during QA testing
  • Contribute to the development of test objectives and performance-related requirements
  • Assist with training and documentation related to software enhancements and platform updates
  • Stay current on software development best practices and communicate relevant trends to the team

WHAT YOU'LL NEED TO HAVE
  • 18+ months of experience developing REST APIs
  • Proficiency in JavaScript, TypeScript, and Angular (or comparable front-end framework)
  • Solid understanding of Object-Oriented Programming principles (inheritance, abstraction, interfaces)
  • Experience with a modern source code repository (Git, GitHub, or Azure DevOps)
  • Strong written and verbal communication skills
  • Ability to work in a requirements-driven, Agile delivery environment

NICE-TO-HAVES
  • Bachelor's degree in Computer Science or a related field
  • Experience with C# and .NET development
  • SQL Server experience, including minor administration
  • Familiarity with document databases such as MongoDB
  • Experience with CI/CD pipelines
  • Google Cloud Platform (GCP) experience-a cloud migration is underway and GCP knowledge is a plus
  • Basic Unix/Linux skills including shell scripting
  • Java familiarity (exposure to Java applications is helpful but not required)
  • Exposure to AI coding tools such as GitHub Copilot or Gemini-based platforms
  • Knowledge of the software development lifecycle and QA processes
  • Windows Server administration (minor)

PAY & BENEFITS SUMMARY
  • $60-$65/hr. W2
  • Contract-to-Hire: 6 months with a conversion target salary of $136,350/year

APPLY NOW!
Keywords: Software Developer | Full Stack Developer | QA Automation Developer | Angular Developer | C# Developer | TypeScript Developer | JavaScript Developer | REST API Developer | Remote Software Developer | Contract Developer | QA Platform Developer | Test Automation | Agile | SQL Server | MongoDB | FinTech Developer | Banking Technology

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