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Javascript Backend Developer Jobs in Denver, CO (NOW HIRING)

PSG Global Solutions

Java Developer III

Littleton, CO · On-site

$51 - $66/hr

Java, JavaScript, JEE, Unix, network management concepts, SVN/GIT/CVS skills are necessary ... backend development experience is required Our primary function is to build Middleware, and not ...

DSC Resources

Principal Software Engineer

Louisville, CO · On-site

$150K - $205K/yr

Experience as a full-stack or backend engineer with a deep data focus * Proficiency in Python, Java, JavaScript/TypeScript, or C# * AWS data services (RDS, Aurora, Redshift), Snowflake, or modern ...

NextRow Digital

.NET Developer

Denver, CO · On-site

$49.75 - $65.50/hr

HTML, CSS, Javascript, JQuery. Back End Technologies/Concepts: .NET core, C# and RESTful API design ... DevOps principles Experience with TFS and Azure DevOps tool suite is strongly preferred: Boards ...

NextRow Digital

.NET Developer

Denver, CO · Remote

$49.75 - $65.50/hr

HTML, CSS, Javascript, JQuery. Back End Technologies/Concepts: .NET core, C# and RESTful API design ... DevOps principles Experience with TFS and Azure DevOps tool suite is strongly preferred: Boards ...

GARGI TECHNOLOGIES INC

FullStack Java Developer

Denver, CO

$54 - $69.75/hr

... and backend services. • Participate in code reviews, debugging, deployment, and production ... as React, Angular, JavaScript, HTML, and CSS is a plus. • Experience with JUnit/TestNG and ...

New

MidWest Startup creating applications that allow consumers to take control of their data

Be Seen First

Senior Python Developer, Unique Niche Expanding Startup, Startup Exper

Denver, CO · Remote

$125K - $145K/yr

Scalable backend services in Python (FastAPI) and/or Node.js * Secure data ingestion pipelines ... JavaScript, React, Angular, HTML, Vue, SPA or similar. * Clean, test-driven code with full coverage

New

Anagh Technologies, Inc.

Angular Developer

Denver, CO · On-site

$56.25 - $69/hr

... Angular, JavaScript, HTML and CSS. • Cooperate with the back-end DB developers in the process of building the RESTful API. • Communicate with external web services. • Design, develop and ...

Anagh Technologies, Inc.

Lead React Developer

Louisville, CO · On-site

$60.75 - $77.75/hr

... of fundamental JavaScript concepts • Solid understanding of testing concepts and automated ... backend systems via REST API's • Experience with reactive programming concepts and RxJS • ...

Arrow Technologies

Web Developer

Denver, CO · Remote

This is a full time position working from home. Position Responsibilities: Front-End Development Back-End Development MS SQL Server Development Skills: C# ASP.Net jQuery T-Sql Javascript

HCL Global Systems

Senior Java Developer

Denver, CO · On-site

$59 - $75.25/hr

REMOTE Senior Java Developer - Full Stack and Client Java Runtime We are looking for a highly ... JavaScript, to create responsive and user-friendly interfaces. * Implement back-end features ...

Parsyl

Staff Frontend Software Engineer

Denver, CO · On-site

Collaborate with backend teams to integrate frontend applications with APIs and data services ... Strong proficiency in JavaScript and/or TypeScript * Experience serving in an architect role for ...

Amplifire

Sr. React Engineer

Boulder, CO · On-site

$135K - $155K/yr

You'll work closely with other frontend developers, backend engineers, QA, and product to deliver ... JavaScript/TypeScript, HTML, and CSS · Experience with modern React patterns (Hooks, component ...

New

DevApps IT

TypeScript Developer

Denver, CO

$56.25 - $69/hr

Technical Skills: o Expert-level proficiency in TypeScript and JavaScript (ES6+). o Experience with front-end frameworks like React, or Vue.js. o Strong back-end development experience using Node.js ...

PLANIT Group

Software Engineer

Littleton, CO

Software Engineer For Both Backend And Front End • Development experience with any of the following programming languages: Java, JavaScript, Python • Experience with application containerization ...

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All JobsJavascript Backend Developer JobsJavascript Backend Developer Jobs in Denver, CO

Javascript Backend Developer information

See Denver, CO salary details

$12

$59

$86

How much do javascript backend developer jobs pay per hour?

As of Jun 14, 2026, the average hourly pay for javascript backend developer in Denver, CO is $59.42, according to ZipRecruiter salary data. Most workers in this role earn between $48.75 and $70.29 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 Denver, CO? For Javascript Backend Developer jobs in Denver, CO, the most frequently searched job titles are:
What job categories do people searching Javascript Backend Developer jobs in Denver, CO look for? The top searched job categories for Javascript Backend Developer jobs in Denver, CO are:
Javascript Backend Developer jobs near you
Infographic showing various Javascript Backend Developer job openings in Denver, CO 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 $123,602 per year, or $59.4 per hour.
Java Developer III

Java Developer III

PSG Global Solutions

Littleton, CO • On-site

$51 - $66/hr

Contractor

Posted 14 days ago

Job description

Job Description

Our key client is experiencing tremendous growth and is adding to their team. We are seeking Senior Java Developer resources that are excited about an opportunity to grow with this industry leader. In this position they need a Level 3 Senior Developer Java - A candidate that has experience developing and supporting Network Management Systems. The candidate must have general knowledge of telecommunications circuitry, network technology terminology, SNMP, and other device communication protocols, as well as strong troubleshooting and communication skills. Java, JavaScript, JEE, Unix, network management concepts, SVN/GIT/CVS skills are necessary

Qualifications


Requirements: 
3+ years of practical application of Java backend development experience is required 
Our primary function is to build Middleware, and not focused on UI's. 
Strong familiarity with JSON/REST API development, as well as consuming JSON/REST/SOAP API's to collect data

Additional Information

All your information will be kept confidential according to EEO guidelines.

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