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Full Time Javascript Developer Jobs in St Louis, MO

duvari group

QA and Device Specialist

Saint Louis, MO · On-site

$45/hr

Start as a contract consultant with the opportunity to convert to a full-time employee based on ... Identify, document, and communicate defects with engineering teams. * Support production and ...

duvari group

QA and Device Specialist

Saint Louis, MO · On-site

Start as a contract consultant with the opportunity to convert to a full-time employee based on ... Identify, document, and communicate defects with engineering teams. * Support production and ...

Booz Allen Hamilton

AWS Full Stack Engineer

Arnold, MO · On-site

$99K - $225K/yr

As a full stack developer, you can resolve a problem with a complete end-to-end solution in a fast ... Full-time and part-time employees working at least 20 hours a week on a regular basis are eligible ...

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All JobsJavascript Developer JobsFull Time Javascript Developer JobsFull Time Javascript Developer Jobs in St. Louis, MO

Full Time Javascript Developer information

See St Louis, MO salary details

$28.7K

$103.6K

$164.3K

How much do full time javascript developer jobs pay per year?

As of Aug 12, 2026, the average yearly pay for full time javascript developer in St. Louis, MO is $103,623.00, according to ZipRecruiter salary data. Most workers in this role earn between $64,200.00 and $124,400.00 per year, depending on experience, location, and employer.

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

To thrive as a Full Time Javascript Developer, you need a solid grasp of JavaScript, HTML, CSS, and modern frameworks like React or Angular, often supported by a degree in computer science or related experience. Familiarity with version control systems (like Git), package managers (npm or Yarn), and build tools (Webpack, Babel) is typically expected. Strong problem-solving abilities, teamwork, and effective communication help developers excel in collaborative environments. These skills and qualities are crucial for building robust, scalable web applications and ensuring seamless integration within development teams.

What are some typical collaboration scenarios for a full time JavaScript developer within a software development team?

As a Full Time JavaScript Developer, you will frequently collaborate with UI/UX designers to turn visual concepts into interactive web applications, work alongside back-end developers to integrate APIs and manage data flow, and coordinate with QA engineers to identify and resolve bugs. Regular stand-up meetings and code reviews are common, fostering communication and continuous improvement. This collaborative environment not only ensures high-quality deliverables but also provides opportunities for learning and professional growth through exposure to various aspects of the development lifecycle.

What does a full time JavaScript developer do?

A Full Time JavaScript Developer is responsible for designing, developing, and maintaining websites and web applications using JavaScript. They often work with front-end frameworks like React, Angular, or Vue.js, and may also handle back-end development with technologies like Node.js. Their duties include writing clean, efficient code, debugging issues, collaborating with other team members, and staying updated on the latest trends and best practices in JavaScript development. This role typically requires strong problem-solving skills and the ability to work in a fast-paced environment.

What is the difference between Full Time Javascript Developer vs Front End Developer?

AspectFull Time Javascript DeveloperFront End Developer
Required SkillsJavaScript, HTML, CSS, frameworks like React or AngularHTML, CSS, JavaScript, UI/UX design
Work EnvironmentSoftware development teams, tech companiesWeb design agencies, tech companies, startups
Common UsageBuilding and maintaining web applications with JavaScriptDesigning and implementing user interfaces

Both roles often require similar skills like JavaScript, HTML, and CSS. A Full Time Javascript Developer focuses more on coding and developing web applications, while a Front End Developer emphasizes UI/UX design and user interface implementation. The roles overlap but differ mainly in focus and scope within web development teams.

What are the most commonly searched types of Javascript Developer jobs in St. Louis, MO? The most popular types of Javascript Developer jobs in St. Louis, MO are:
Full Time Javascript Developer jobs near you

QA and Device Specialist

duvari group

Saint Louis, MO • On-site

$45/hr

Full-time, Contractor

Posted 6 days ago

Job description

QA & Device Specialist (Hardware/Firmware Testing)
St. Louis, MO (Onsite
Looking for a role with long-term potential? Start as a contract consultant with the opportunity to convert to a full-time employee based on performance.
We're looking for a hands-on QA & Device Specialist to test next-generation connected consumer devices. If you enjoy working with hardware, firmware, Bluetooth devices, and embedded systems-and you're the person who catches issues everyone else misses-we want to hear from you.
Please note: This is an onsite role in the St. Louis area.
What You'll Do
  • Perform hands-on testing of connected hardware and IoT devices.
  • Flash and validate firmware builds on embedded devices.
  • Test Bluetooth Low Energy (BLE) connectivity, device performance, and mobile app integrations.
  • Verify firmware updates, including OTA (Over-the-Air) updates.
  • Write and maintain test scripts to improve QA efficiency.
  • Identify, document, and communicate defects with engineering teams.
  • Support production and warehouse technology, including scanners, labeling systems, and fulfillment tools.

What We're Looking For
Required Qualifications
  • 3+ years of hardware and firmware QA testing experience
  • Experience flashing firmware on embedded devices
  • Hands-on experience with Bluetooth Low Energy (BLE) testing tools (such as nRF Connect or Wireshark)
  • Scripting experience with Python, JavaScript, TypeScript, or Shell
  • Strong troubleshooting skills and exceptional attention to detail
  • Able to work onsite in the St. Louis metro area

Nice to Have
  • Experience testing IoT or smart consumer devices
  • OTA firmware validation experience
  • Familiarity with embedded platforms such as ESP32, Nordic, or STM32
  • Experience supporting manufacturing or production testing environments

Why You'll Love This Opportunity
  • Contract-to-hire with the potential to join the team full-time
  • Work with cutting-edge connected hardware and embedded technology
  • Play a critical role in ensuring product quality before release
  • Join a collaborative engineering team where your work has a direct impact

If you're passionate about hardware, firmware, and finding the bugs others miss, we'd love to hear from you.

Apply