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Javascript Backend Developer Jobs in Wilmington, DE

Hadoop Developer Location: Wilmington, DE Length: 2 years F2F REQUIRED Locals only Requirements ... back-end solutions written in Java - Proficiency with scripting languages (Python, Perl, JavaScript ...

Hadoop Developer Location: Wilmington, DE Length: 2 years F2F REQUIRED Visa copy required for ... back-end solutions written in Java - Proficiency with scripting languages (Python, Perl, JavaScript ...

UI/UX Developer (Remote)

Philadelphia, PA · On-site +1

$50.50 - $65.50/hr

Work together with back-end developers and other IT professionals to complete requirements ... Solid experience in designing and building highly usable UI * Strong knowledge of Javascript/ES6

UI/UX Developer (Remote)

Philadelphia, PA · On-site +1

$50.50 - $65.50/hr

Work together with back-end developers and other IT professionals to complete requirements ... Solid experience in designing and building highly usable UI * Strong knowledge of Javascript/ES6

UI/UX Developer (Remote)

Philadelphia, PA · Remote

$51.25 - $66.50/hr

Work together with back-end developers and other IT professionals to complete requirements ... Solid experience in designing and building highly usable UI * Strong knowledge of Javascript/ES6

Java Developer

Wilmington, DE · On-site

$49.50 - $64/hr

... Angular, JavaScript, TypeScript, HTML5, and CSS3. * Strong expertise in Python for backend ... Bachelor's degree in Computer Science, Engineering, or a related field. * 6+ years of professional ...

Salesforce Developer

Newark, DE · On-site

$54.25 - $71.75/hr

... of front and back-end web application development 2+ years experience developing custom ... Java, Javascript/HTML/CSS/AJAX, Webservices, XML

We are seeking a Senior Software Engineer with deep expertise in Python-based back-end development, modern JavaScript frameworks (Angular or React), and cloud-native architecture utilizing AWS. In ...

.NET Developer

Philadelphia, PA · On-site

$48.75 - $64.25/hr

Net with SQL Server backend Required Skills * Analyze, design, modify, build, and deploy ... Familiar with Angular, JavaScript, Oracle, SQL Server, Visual Studio Developer, SSIS, SSRS, Azure

Engineer

Malvern, PA · On-site

$120K - $130K/yr

Must Have Technical/Functional Skills Strong React experience, HTML, CSS Excellent Javascript ... backend developers, and stakeholders to deliver business requirements. • Write clean ...

Angular Developer

Philadelphia, PA · On-site

$55.25 - $67.50/hr

Our client, a premier consulting company, is seeking an Angular / JavaScript Developer to join ... front and back end. The following is a list of application features, with brief and broad ...

Angular Developer

Philadelphia, PA · On-site

$55.25 - $67.50/hr

Our client, a premier consulting company, is seeking an Angular / JavaScript Developer to join ... front and back end. The following is a list of application features, with brief and broad ...

Engineer

Malvern, PA · On-site

$110K - $130K/yr

Must Have Technical/Functional Skills Strong React experience, HTML, CSS Excellent Javascript ... backend developers, and stakeholders to deliver business requirements. • Write clean ...

Showing results 21-40

Javascript Backend Developer information

See Wilmington, DE salary details

$11

$56

$81

How much do javascript backend developer jobs pay per hour?

As of Sep 4, 2026, the average hourly pay for javascript backend developer in Wilmington, DE is $56.01, according to ZipRecruiter salary data. Most workers in this role earn between $45.96 and $66.25 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.

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 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.

What are popular job titles related to Javascript Backend Developer jobs in Wilmington, DE?

For Javascript Backend Developer jobs in Wilmington, DE, the most frequently searched job titles are:

What job categories do people searching Javascript Backend Developer jobs in Wilmington, DE look for?

The top searched job categories for Javascript Backend Developer jobs in Wilmington, DE are:

Infographic showing various Javascript Backend Developer job openings in Wilmington, DE as of August 2026, with employment types broken down into 87% Full Time, and 13% Contract. Highlights an 87% In-person, and 13% Remote job distribution, with an average salary of $116,520 per year, or $56 per hour.

Hadoop Developer

Arka Infotech Inc

Wilmington, DE • On-site

Contractor

Re-posted 22 days ago


Job description

Job Description

Hadoop Developer
Location: Wilmington, DE
Length: 2 years
F2F REQUIRED Locals only
Requirements:
- 5+ years Hadoop development experience
- Experience with various Hadoop tools & frameworks (MapReduce, YARN, Pig, Hive, Hbase) and NoSQL
- Experience developing front-end and back-end solutions written in Java
- Proficiency with scripting languages (Python, Perl, JavaScript, Shell)
- Experience designing, developing, and implementing ETL and relational database systems
- Experience working with automated build and continuous integration systems (Maven, Jenkins) and test-driven development and unit testing frameworks (jUnit, xUnit, Nose)
- Experience with UNIX/Linux including basic commands, shell scripting and system administration/configuration

Qualifications

BS Degree

Additional Information

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