ZipRecruiter

Log In

1

Javascript Backend Developer Jobs in Missouri (NOW HIRING)

Esri

Collaborate with platform, DevOps, and GIS teams to translate requirements into production ... Professional experience developing backend services using Python, JavaScript/Node,js and Java

Jobgether

We are currently looking for a Backend Engineer (Node.js) | Prograd in Netherlands. Join an ... and JavaScript. * Proven experience designing and implementing GraphQL and RESTful APIs in ...

Purple Drive Technologies

Angular developer

Saint Louis, MO · On-site

$53.25 - $65.25/hr

... JavaScript . * Implement NgRx Store for effective state management and handle complex data flows ... Collaborate with UX/UI designers and backend developers to deliver end-to-end solutions.

Purple Drive Technologies

React Developer

Saint Louis, MO · On-site

$101K - $117K/yr

Develop dynamic and interactive front-end applications using React.js , JavaScript (ES6+) , HTML5 , and CSS3 . * Collaborate with designers, backend developers, and product managers to translate UI/U ...

Purple Drive Technologies

Angular developer

Saint Louis, MO · On-site

$53.25 - $65.25/hr

You will collaborate with UI/UX designers, backend engineers, and product managers to deliver ... Strong proficiency in JavaScript , TypeScript , HTML5 , CSS3 , and RxJS . * Solid understanding of ...

next page

Showing results 1-20

All JobsJavascript Backend Developer JobsJavascript Backend Developer Jobs in Missouri

Javascript Backend Developer information

See Missouri salary details

$11

$54

$79

How much do javascript backend developer jobs pay per hour?

As of Jun 18, 2026, the average hourly pay for javascript backend developer in Missouri is $54.15, according to ZipRecruiter salary data. Most workers in this role earn between $44.42 and $64.04 per hour, depending on experience, location, and employer.

What does a JavaScript Backend Developer do?

A JavaScript Backend Developer is responsible for building and maintaining the server-side logic, databases, and APIs that power web applications. They use JavaScript, often with frameworks like Node.js, to process requests, manage data, and ensure smooth communication between the frontend and backend of an application. Their work ensures that web applications are scalable, secure, and efficient. JavaScript Backend Developers also collaborate with frontend developers and other team members to deliver seamless user experiences.

Which pays more, JavaScript or Python?

For a JavaScript Backend Developer, Python developers often have higher average salaries due to demand in data science, machine learning, and backend development. However, salary differences depend on experience, location, and industry, with both skills being highly valued in tech roles.

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

To thrive as a Javascript Backend Developer, you need strong proficiency in JavaScript (especially Node.js), knowledge of backend frameworks, and a solid understanding of databases such as MongoDB or PostgreSQL. Familiarity with development tools like Git, RESTful APIs, Docker, and cloud platforms, as well as relevant certifications, is highly valuable. Excellent problem-solving, teamwork, and communication skills help you collaborate effectively and deliver robust solutions. These abilities are crucial for building scalable, secure, and maintainable backend services that power modern applications.

Can I learn backend in 6 months?

A JavaScript Backend Developer can acquire foundational backend skills in about 6 months with consistent study, focusing on server-side frameworks like Node.js, databases, and APIs. However, mastering complex systems and gaining real-world experience typically requires ongoing learning beyond this timeframe.

What are the typical challenges a JavaScript Backend Developer faces when scaling applications for high traffic?

JavaScript Backend Developers, especially those working with Node.js, often encounter challenges related to handling high concurrency, optimizing database queries, and maintaining application performance under heavy load. Ensuring efficient memory management and implementing robust error handling are also critical when scaling. Working closely with DevOps and frontend teams to optimize APIs and monitor system health is essential for delivering reliable, scalable backend solutions.

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

AspectJavascript Backend DeveloperJavascript Frontend Developer
Primary FocusServer-side development, APIs, databasesUser interface, client-side interactions
Required SkillsNode.js, databases, server managementHTML, CSS, JavaScript, UI frameworks
Work EnvironmentBack-end servers, cloud platformsWeb browsers, client devices
Common UsageBuilding APIs, server logicDesigning web pages, user experience

The main difference between a Javascript Backend Developer and a Javascript Frontend Developer lies in their focus areas. Backend developers handle server-side logic, databases, and APIs, while frontend developers focus on creating engaging user interfaces and client-side interactions. Both roles require JavaScript skills but apply them in different parts of web development projects.

Is JavaScript good for backend development?

JavaScript is widely used for backend development through environments like Node.js, allowing developers to build scalable server-side applications using a single language. It offers a large ecosystem of libraries and frameworks, making it a popular choice for full-stack developers. Knowledge of asynchronous programming and server management is beneficial for backend roles involving JavaScript.

What is the salary of a JavaScript beginner?

The salary of a JavaScript beginner typically ranges from $50,000 to $70,000 annually, depending on location, education, and prior experience. Entry-level JavaScript developers often start with basic skills in front-end or back-end frameworks and may earn less in regions with lower living costs.
What are popular job titles related to Javascript Backend Developer jobs in Missouri? For Javascript Backend Developer jobs in Missouri, the most frequently searched job titles are:
What job categories do people searching Javascript Backend Developer jobs in Missouri look for? The top searched job categories for Javascript Backend Developer jobs in Missouri are:
Javascript Backend Developer jobs near you
Infographic showing various Javascript Backend Developer job openings in Missouri as of June 2026, with employment types broken down into 100% Full Time. Highlights an 100% In-person job distribution, with an average salary of $112,641 per year, or $54.2 per hour.

Backend Developer Senior

Freedom Technology Solutions Group

Saint Louis, MO • Remote

$117K - $152K/yr

Other

Posted 12 days ago

Job description

Freedom Technology Solutions Group is seeking a Software Engineer (Backend Developer) 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 Senior Backend Developer provides comprehensive knowledge across multiple backend and cloud technologies, leading major assignments and guiding project outcomes. Functions as a technical expert and may lead teams of developers.

Responsibilities: 
  • Lead the design, development, and deployment of enterprise-scale backend services. 
  • Architect and optimize secure DevSecOps pipelines and automated testing frameworks. 
  • Direct the migration, scaling, and modernization of applications in AWS environments. 
  • Drive geospatial solution integration across enterprise applications. 
  • Define technical standards, coding guidelines, and best practices. 
  • Supervise development teams and provide technical mentorship. 
  • Evaluate performance results and recommend project-wide improvements. 
  • Support proposal writing, technical white papers, and client briefings. 
Qualifications: 
  • 9-13 years of backend development experience. 
  • Expert proficiency in Java, JavaScript, and/or Python. 
  • Proven leadership in DevSecOps adoption and Agile/SAFe development frameworks. 
  • Advanced AWS expertise, including architecture and deployment of containerized applications. 
  • Deep experience with geospatial systems and enterprise integration. 
  • Strong ability to plan, manage, and deliver complex technology assignments. 
  • 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.
  • Experience working independently with clients or stakeholders to develop user stories for full-service consumer and business applications.
  • Experience with government and/or commercial imagery products, including SAR or related RADAR imaging technologies.
  • Developing geospatial information systems (GIS) and working with open-source and proprietary geospatial formats.
  • Using and developing common geospatial tools, data, and operating platforms such as:

    Tools: Boundless Spatial suite, Remote View, PostGRES/PostGIS, Oracle Spatial, ArcGIS Desktop, ArcGIS Server, Image Server, File Geodatabases

    Data Formats: KML, KMZ, NITF, TIFF, JPEG, GeoPDF, and similar geo-related formats and data structures

  • Abstracting new or legacy systems via standards-based APIs, including Open Geospatial Consortium standards
  • Developing terrain analysis visualization and algorithms
  • Developing automated detection algorithms
  • Experience with Argo Workflows

Apply