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Javascript Backend Developer Jobs in St Louis, MO

Palnar

Sr. Java Full Stack Developer

O Fallon, MO · On-site

$49 - $63.25/hr

Deep understanding of JavaScript and it's benefits and quirks. Proven experience building ADA and ... development Backend Skills Java 17 Spring Boot 3.x SQL / Hibernate / JPA Data Structure ...

Fabergent

C# Developer (Jr and Sr Roles)

Saint Louis, MO

$53 - $70/hr

HTML5 and Angular JS or similar JavaScript libraries Strong knowledge of object-oriented ... NET Experience with Entity Framework Experience with using SQL Server as a backend preferred Must ...

The Timberline Group

Angular .Net Developer

Saint Louis, MO · On-site +1

$53.25 - $65.25/hr

The role is full stack, so the candidate should have good experience on both front and back end ... NET work experience. • Proficient in HTML5, JavaScript, and CSS. • User interface and graphic ...

Synthesis Systems

Full Stack Java Developer

Creve Coeur, MO · On-site

$49.25 - $63.50/hr

The Full Stack Developer provides frontend and backend development support. The successful ... Angular, JavaScript, and AWS technologies. The individual will work in an agile environment to ...

Synthesis Systems

Full Stack Java Developer

Creve Coeur, MO · On-site

$49.25 - $63.50/hr

The Full Stack Developer provides frontend and backend development support. The successful ... Angular, JavaScript, and AWS technologies. The individual will work in an agile environment to ...

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All JobsJavascript Backend Developer JobsJavascript Backend Developer Jobs in St. Louis, MO

Javascript Backend Developer information

See St Louis, MO salary details

$11

$56

$82

How much do javascript backend developer jobs pay per hour?

As of Jul 14, 2026, the average hourly pay for javascript backend developer in St. Louis, MO is $56.13, according to ZipRecruiter salary data. Most workers in this role earn between $46.06 and $66.39 per hour, depending on experience, location, and employer.

Can I learn backend in 3 months?

A JavaScript Backend Developer can acquire foundational backend skills in about three months with focused study, including learning Node.js, databases, and APIs. However, becoming proficient and gaining job-ready experience typically requires ongoing practice and real-world project work beyond this timeframe.

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.

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.

What is JavaScript salary?

The salary for a JavaScript Backend Developer varies based on experience, location, and company size, but typically ranges from $70,000 to $120,000 annually in many regions. Skilled developers with knowledge of frameworks like Node.js and experience with cloud services tend to earn higher salaries. Entry-level positions may start lower, while senior roles can exceed $150,000.

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, especially with environments like Node.js, which allows developers to build scalable server-side applications using the same language as frontend development. It offers a large ecosystem of libraries and frameworks, making it a popular choice for full-stack developers and backend roles requiring proficiency in JavaScript. Knowledge of asynchronous programming and server management is beneficial for backend JavaScript development.

Are JavaScript developers in demand?

JavaScript developers are in high demand due to the widespread use of JavaScript for web development, both on the client and server sides with frameworks like Node.js. Companies seek developers skilled in JavaScript, front-end frameworks, and related tools to build dynamic, responsive applications, making it a valuable skill in the tech industry.
What are popular job titles related to Javascript Backend Developer jobs in St. Louis, MO? For Javascript Backend Developer jobs in St. Louis, MO, the most frequently searched job titles are:
What job categories do people searching Javascript Backend Developer jobs in St. Louis, MO look for? The top searched job categories for Javascript Backend Developer jobs in St. Louis, MO are:
What cities near St. Louis, MO are hiring for Javascript Backend Developer jobs? Cities near St. Louis, MO with the most Javascript Backend Developer job openings:
Javascript Backend Developer jobs near you
Front End Developer (Angular)

Front End Developer (Angular)

Kforce Technology Staffing

Saint Louis, MO • On-site

$98K - $114K/yr

Other

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 6 days ago

Job description

RESPONSIBILITIES:
Kforce has a client that is seeking a Front end Developer (Angular) in Saint Louis, MO.
Key Responsibilities:
* Develop and implement complex, scalable user interfaces using Angular and .NET Core for web and mobile applications
* Ensure responsive design and accessibility compliance (ADA/WCAG)
* Work with stakeholders to refine usability and interface workflows
* Collaborate with back-end developers to integrate web services/RESTful APIs
* Utilize JSON for data exchange
REQUIREMENTS:
* 4-7 years of front-end development experience
* Strong proficiency in Angular, HTML5, CSS3, and JavaScript
* Experience developing complex, scalable Angular applications
* Experience integrating with RESTful APIs
* Knowledge of accessibility standards (ADA/WCAG)
Preferred Skills:
* Experience developing responsive web and mobile applications
* Experience integrating with .NET Core and RESTful APIs
The pay range is the lowest to highest compensation we reasonably in good faith believe we would pay at posting for this role. We may ultimately pay more or less than this range. Employee pay is based on factors like relevant education, qualifications, certifications, experience, skills, seniority, location, performance, union contract and business needs. This range may be modified in the future.
We offer comprehensive benefits including medical/dental/vision insurance, HSA, FSA, 401(k), and life, disability & ADD insurance to eligible employees. Salaried personnel receive paid time off. Hourly employees are not eligible for paid time off unless required by law. Hourly employees on a Service Contract Act project are eligible for paid sick leave.
Note: Pay is not considered compensation until it is earned, vested and determinable. The amount and availability of any compensation remains in Kforce's sole discretion unless and until paid and may be modified in its discretion consistent with the law.
This job is not eligible for bonuses, incentives or commissions.
Kforce is an Equal Opportunity/Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, gender identity, national origin, age, protected veteran status, or disability status.
By clicking ?Apply Today? you agree to receive calls, AI-generated calls, text messages or emails from Kforce and its affiliates, and service providers. Note that if you choose to communicate with Kforce via text messaging the frequency may vary, and message and data rates may apply. Carriers are not liable for delayed or undelivered messages. You will always have the right to cease communicating via text by using key words such as STOP.

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