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Javascript Developer Jobs in Claymont, DE, US
210+ javascript developer jobs from 95 companies hiring in Claymont, DE, US.
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Software Developer III
Aberdeen Proving Ground, Maryland, United States
OnsiteFull Time
10+ YOETen years’ experience in design/development; strong HTML/CSS/JavaScript/XML; UX and visual design skills; experience with design tools and web development.
HTML, CSS, JavaScript, XML, Dreamweaver, Photoshop, PowerPoint
1mo
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Web Developer II
Horsham, Pennsylvania, United States
HybridFull Time
3+ YOEDevelop, test, and maintain web applications using PHP, SQL, HTML, CSS, JavaScript; collaborate with team; troubleshoot and optimize performance.
PHP, SQL, HTML, CSS, JavaScript, Git, RESTful APIs, Linux, AWS, Azure
1mo
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Sr. Software Engineer (Level 3)
King of Prussia, Pennsylvania, United States
OnsiteFull Time
Software development with Java/JavaScript, Agile, containerization, and cloud experience.
Java, JavaScript, Node.js, GitLab, Kubernetes, Docker, AWS, OpenStack, OpenShift, Git, CI/CD, PostgreSQL, MySQL, RESTful APIs, Linux, Shell scripting
3w
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Salesforce Senior Developer
Wilmington or Cincinnati or Worthington
$90k-$121k/yr HybridFull Time
5+ YOE5+ years Salesforce development; Bachelor's or equivalent; Salesforce Platform Developer II; multiple tech skills including Apex, LWC, Visualforce, JSON, XML, JavaScript, SQL, Java, C#, C++, SOAP, AWS/Azure; multiple Salesforce certifications.
Apex, LWC, Visualforce, JSON, XML, JavaScript, SQL, Java, C#, C++, SOAP, AWS, Azure, GearSet
4d
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Senior Application Developer
Philadelphia, Pennsylvania, United States
$84k-$135k/yr RemoteFull Time
3+ YOEBachelor in Computer Science or related field; 3-5 years application development; Java, JavaScript; Oracle SQL/PL-SQL; Ellucian Banner experience; SDLC and Agile; enterprise environments
Java, JavaScript, Oracle SQL, PL/SQL, HTML, CSS, REST, SOAP, Unix/Linux, Shell scripting, Ellucian Banner APIs, Page Builder
1mo
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Senior Software Developer
Wilmington, Delaware, United States
HybridFull Time
5+ YOE5+ years in software development; strong C#/.NET Core; AWS; SQL Server or PostgreSQL; REST APIs; distributed/microservices; React/JavaScript; Azure DevOps; secure coding practices.
C#, NET Core, React, AWS, SQL Server, PostgreSQL, REST APIs, Azure DevOps, JavaScript
1w
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dotCMS Developer
Philadelphia, Pennsylvania, United States
HybridFull Time
Experience with dotCMS, Java, HTML, CSS, JavaScript; RESTful APIs, CMS workflows; strong teamwork and communication.
dotCMS, Java, HTML, CSS, JavaScript, RESTful APIs, DevOps tools
1mo
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Senior Software Engineer
Malvern, Pennsylvania, United States
HybridFull Time
6+ YOE6-9 years of web app development, Ruby on Rails, JavaScript, REST APIs, PostgreSQL, Linux, and strong problem-solving skills.
Ruby on Rails, JavaScript, Python, PostgreSQL, Linux, Git, REST API, OpenAPI, JSON, XML, Redis, Docker, Kubernetes, Jenkins, JIRA, OAuth2, OIDC, SSL, SSH, SFTP/FTP, GraphQL
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1650 - Software Developer
Belcamp, Maryland, United States
$83k-$140k/yr OnsiteFull Time
Sigma Defense: Develops tactical communications and intelligence systems for defense.
10+ YOE10+ years in software development; 5+ years DoD software support; strong requirements analysis, architecture, and coding skills; Java, Python, C#, and JavaScript; ability to document software; U.S. citizen; Secret security clearance or higher; Bachelor's Science degree.
Java, Python, C#, JavaScript
1mo
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Dynamics 365 Developer (Remote Opportunity)
Philadelphia, Pennsylvania, United States
RemoteFull Time
5+ YOE5+ years Dynamics 365 (Customer Service) development, customization, and integration; JavaScript, C#, .NET; Power Platform; Dynamics APIs; Dataverse; Azure tools.
JavaScript, C#.NET, Power Platform, Dynamics 365, Azure, APIs, Web Services, Dataverse, Power Apps, Power Automate
1mo
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Lead Software Engineer - Observability Platform Cloud Developer
Wilmington or Columbus
OnsiteFull Time
5+ YOE6+ years of software engineering experience; strong cloud native development; proficiency in Java, JavaScript, React, Python; experience with Kafka, Kubernetes, Microservices, Terraform; CI/CD and automation; knowledge of financial IT systems.
Java, JavaScript, React, Python, Kafka, Kubernetes, Microservices, Terraform, Ansible, ServiceNow, Splunk, Oracle, DynaTrace
2mo
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Experienced Software Developer
Philadelphia, Pennsylvania, United States
$124k-$207k/yr HybridFull Time
8+ YOE8+ years in software development; strong OO with C++, C#, .NET, JavaScript; microservices; SQL/NoSQL; cloud (Azure, AWS, Google); design and deliver mission-critical software; Bachelor/Master/PhD or relevant experience
C++, C#, DotNet, JavaScript, Azure, AWS, Google Cloud, SQL, NoSQL, Microservices
4d
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Senior Application Developer
Philadelphia, Pennsylvania, United States
$84k-$135k/yr RemoteFull Time
3+ YOEBachelor in Computer Science or related field; 3-5 years of application development in enterprise environments; experience with Ellucian Banner, Oracle SQL/PLSQL, Java/JavaScript; web tech, Unix/Linux, Python a plus; SDLC and Agile experience.
Java, JavaScript, HTML, CSS, REST, SOAP, Oracle SQL, PL/SQL, Python, Unix/Linux, Shell scripting, Ellucian Banner, Page Builder
2mo
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Senior Full Stack Engineer
Austin or Ann Arbor or Scottsdale or Wayne
$145k/yr HybridFull Time
5+ YOE5+ years web development with PHP/JavaScript; Laravel experience; strong communication; problem-solving; capable in fast-paced environments.
PHP, JavaScript, Laravel, Vue.js, React, AlpineJS, jQuery, REST API, AWS
3w
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Principal Software Engineer
Columbus or Chadds Ford or Plano or Draper or New York or Wilmington
$184k-$492k/yr HybridFull Time
15+ YOE15+ years in software development across full stack, frontend and backend; BS in CS or related field; strong Agile/DevOps focus; experience with Java, JavaScript, AWS, Azure, React, Angular, Flutter; leadership experience.
Agile Methodology, DevOps, Java, JavaScript, Microsoft Azure Functions, Microsoft Azure SQL, Full Stack Development, Amazon Web Services (AWS), React.js, Angular, Flutter
1w
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Python Developer / Engineer (US)
Mount Laurel or Fort Lauderdale
$79k-$128k/yr HybridFull Time
5+ YOE5-7 years of relevant experience; strong Python/JavaScript stack; REST APIs; SQL/NoSQL databases; testing; Git.
Python, Node.js, Express.js, React.js, JavaScript (ES6+), MongoDB, PostgreSQL, MySQL, REST, Jest, Mocha, Git
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IT Software Developer
Lancaster, Pennsylvania, United States
$70k/yr RemoteFull Time
2+ YOE2-3 years relevant experience; solid C#, .NET, JavaScript frameworks (Vue/Angular); REST APIs; SQL; Azure DevOps; Visual Studio; remote opportunity.
C#, .NET, Web API, HTML, JavaScript, Vue JS, Angular JS, CSS, T-SQL, Azure DevOps Git, Visual Studio, Visual Studio Code, xUnit, Quasar Framework, Angular Material, Microsoft IIS, iOS, Android, JAVA
1mo
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Senior Software Engineer (Philadelphia, PA, US)
Philadelphia, Pennsylvania, United States
OnsiteFull Time
5+ YOE5+ years as a software developer; expert in JavaScript/TypeScript, Node.js and React; full-stack design knowledge; experience with web/desktop applications; familiar with APIs, security, Git.
JavaScript, TypeScript, React, Node.js, Git, APIs, Web security
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Software Engineer III
Norristown, Pennsylvania, United States
HybridFull Time
5+ YOEBachelor's degree in Computer Science or related field; 5 years software development experience; Java/Spring; Oracle 19c; web technologies; 2 years UI JavaScript/CSS/HTML; remote work 2 days/week within commuting distance
Java, Spring Core, Spring Boot, Spring Integration, Oracle, SQL, JavaScript, AJAX, CSS, HTML, JMS, RabbitMQ, SOAP, REST, Jboss
1mo
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Senior Java Developer
Chicago or Morristown or Wilmington
$79k-$138k/yr HybridFull Time
4+ YOE4+ years enterprise Java, Guidewire InsuranceNow experience, REST/SOAP APIs, SQL, JavaScript/jQuery/Velocity; full SDLC; Agile/Waterfall; BA/Business stakeholder collaboration.
Java, Guidewire InsuranceNow, REST API, SOAP API, SQL, JavaScript, jQuery, Velocity
3w
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Software Developer
Chicago or Philadelphia or Orlando or Atlanta or Cleveland or Columbus or Cincinnati or Los Angeles or Dallas or Denver
$110k-$150k/yr HybridFull Time
5+ YOE5+ years in software development; React, TypeScript, cloud platforms; API design; Azure; DevOps; AI integration.
React, TypeScript, JavaScript, HTML5, CSS3, Node.js, Python, C#, GraphQL, Azure, Git, OpenAI
2mo
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Sr. Full Stack Engineer - Mobile - Xumo
Philadelphia or Irvine
$111k-$206k/yr HybridFull Time
7+ YOE5+ years in enterprise web/mobile development; proficiency in JavaScript (React Native, Node.js); knowledge of AWS/GCP, CI/CD; video tech experience; strong collaboration and leadership skills.
JavaScript, React Native, Node.js, AWS, GCP, CI/CD, Concourse/Circle CI/Jenkins, Video Streaming, Widevine, PlayReady, FairPlay
2d
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Sr Salesforce Developer
Mt Laurel, New Jersey, United States
$154k/yr HybridFull Time
5+ YOESenior Salesforce Developer with 5+ years in Salesforce development, Salesforce certification required, remote work 2 days/week, on-site Mt. Laurel NJ; Bachelor's in IT/CS/software engineering.
Salesforce Apex, Visualforce, Lightning Web Components, Salesforce tools, SOQL, SOSL, JAVA, .NET, HTML, CSS, JavaScript, jQuery, Git, Jenkins, Data Loader, Xplenty, Blendo, Jitterbit, SOAP, REST
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CPE SETA_Software Engineer III (Graphics Support, Web Designer)
Aberdeen Proving Ground, Maryland, United States
$120k-$130k/yr HybridFull Time
10+ YOEBachelor's degree in CS/Design; 10+ years in web design and development with HTML, CSS, JavaScript; Photoshop/Dreamweaver; able to substitute associate degree with 12+ years.
HTML, CSS, JavaScript, Python, PHP, SQL, Photoshop, Dreamweaver, PowerPoint, UNIX, Windows
3w
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Software Developer
Blue Bell, Pennsylvania, United States
OnsiteFull Time
3+ YOE3-5 years software development; proficiency in multiple languages; SQL; multi-tier applications; experience with databases; plus knowledge of reporting tools.
VB, VBScript, C++, C#, ASP.Net, Java, JavaScript, Delphi, SQL, Crystal Reports, Business Objects, COM, XML
2mo
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Frontend Prototype Developer
Philadelphia, Pennsylvania, United States
$111k-$149k/yr RemoteFull Time
8+ YOE8+ years of professional software development experience; strong front-end, rapid prototyping, and research-oriented software development.
Angular, TypeScript, JavaScript, HTML, CSS, Shiny, AWS, Lambda, S3, DynamoDB, CDK, Node.js
2w
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Salesforce Developer II
Philadelphia, Pennsylvania, United States
$108k/yr HybridFull Time
3+ YOE3+ years Salesforce development; Salesforce Platform Developer I cert; Bachelor's in CS or equivalent; Agile/Scrum experience; MuleSoft experience preferred.
Salesforce, Apex, Visualforce, Lightning Components, JavaScript, HTML, CSS, SQL, GitHub, Bitbucket, TFS, Jenkins, Salesforce DX, ANT, Service Cloud
2w
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Salesforce Software Engineer II
Hamilton, New Jersey, United States
$110k-$140k/yr HybridFull Time
2+ YOE2+ years software development; Salesforce Apex; Salesforce, Agentforce, Datacloud; GitHub, CI/CD, Agile/Scrum; Java; AWS; SF ISV; REST APIs; microservices; JavaScript/React; Lightning Web Components; observability; debugging; architecture.
Java, Salesforce Apex, SFDC, Agentforce, Datacloud, GitHub, CI/CD, Agile/Scrum, SFDX, SF CLI, AWS, REST APIs, JavaScript, React, Lightning Web Components, observability
2mo
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Software Developer (55390)
Aberdeen, Maryland, United States
$100k-$110k/yr OnsiteFull Time
10+ YOEBachelor's degree and 10+ years in software development; DoD experience preferred; US citizen with active secret clearance.
Java, Python, C#, JavaScript
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Senior Software Developer
New York City or Boston or Chicago or Los Angeles or San Francisco or Denver or Seattle or Philadelphia or Dallas or Detroit or Houston
HybridFull Time
6+ YOESenior software developer with 6+ years in web/application development; lead features, CI/CD, Azure; strong JS/TS, Vue/React; API design; AI exposure.
JavaScript, TypeScript, Vue, React, Next.js, HTML, CSS, Git, Azure DevOps, Jira, Node.js, .NET Core, PostgreSQL, MongoDB, Azure, Vercel, OpenAI
1w
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Sr Quality Engineer
King of Prussia, Pennsylvania, United States
OnsiteFull Time
5+ YOE5+ years automated testing of web apps; Proficient in Python, JavaScript, or TypeScript; Playwright or Selenium; Cucumber; CI/CD with Jenkins or GitLab; API testing with Postman; strong problem-solving and communication in Agile
Playwright, Selenium, Cucumber, SQL, NoSQL, Locust, Jenkins, GitLab, Postman, Confluence, Prometheus, Grafana, Python, JavaScript, TypeScript, React, Flutter
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Lead Software Engineer (Site Reliability)
Malvern, Pennsylvania, United States
HybridFull Time
Experience in distributed systems, cloud (AWS), Java/JavaScript, OpenTelemetry, microservices, observability, and incident response.
Java, JavaScript, Python, OpenTelemetry, AWS, Microservices, Observability
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Senior Software Engineer
Omaha or Berwyn or Hebron or Lehi
$108k-$170k/yr HybridFull Time
5+ YOESenior .NET engineer with 5+ years' experience; ASP.NET Web API, EF, C#, REST/Web Services, SQL Server; AngularJS/Javascript/CSS/HTML; strong SDLC, OO design, problem solving, and collaboration.
ASP.NET Web API, Entity Framework, C#, Restful Services, Web Services, SQL Server, AngularJS, JavaScript, CSS, HTML
1mo
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Full Stack Developer
Wilkes Barre or Conshohocken or Parsippany or Alpharetta
$78k-$180k/yr HybridFull Time
5+ YOE5+ years in software development; 3+ years with C#/.NET; 3+ years with modern front-end frameworks; strong API, security, and Azure experience.
C#, NET, Azure, React, Angular, Vue.js, HTML, CSS, JavaScript, TypeScript, SQL, Git, OpenAPI
6d
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Full Stack Palantir Foundry Developer
Arlington or Seattle or Denver or Chicago or Ridley Park or El Segundo or Saint Louis or Seattle
$149k-$215k/yr HybridFull Time
5+ YOEBachelor's degree in CS/Software/Data Eng or related field; 5+ years full-stack software development; 5+ years React/JavaScript/TypeScript; 3+ years ontology/taxonomy development; 5+ years web development with ReactJS/Redux/JS/TS/HTML/CSS
Palantir Foundry, Workshop, Slate, React, TypeScript, Python, PySpark, REST, JDBC, S3/Parquet, Git
1w
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Web Applications Developer
Kansas City or Atlanta or Chicago or St. Louis or New York or Birmingham or Boston or Chattanooga or Charleston or Dallas or Denver or Edwardsville or Fort Lauderdale or Fort Worth or Houston or Jefferson City or Los Angeles or Miami or Nashville or Park City or Philadelphia or Phoenix or Raleigh or Seattle or San Francisco or Salt Lake City or St. Joseph or Wilmington or Washington
$125k-$140k/yr HybridFull Time
5+ YOE5–8 years of software development, full-stack web, strong C#/.NET, Angular/TypeScript, REST APIs, SQL Server, Azure, HTML/CSS/JS.
C#, .NET Core, ASP.NET Core, Angular, TypeScript, REST APIs, SQL Server, Azure, HTML, CSS, JavaScript
2w
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CyberTron Contract: Software Engineer I
Aberdeen, Maryland, United States
$85k-$110k/yr OnsiteFull Time
Techximius: Provides specialized IT and engineering services for defense missions.
1+ YOEEntry-level software engineer with skills in Java/C/C++, Python, or JavaScript; knowledge of backend, web apps, and microservices; DoD environment familiarity preferred.
Java, C/C++, Python, JavaScript, Backend development, Web technologies, Microservices, SQL
2mo
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Senior Web Developer
Philadelphia or Atlanta or Blue Bell or Boston or Charlotte or Dallas or Exton or Greensboro or Greenville or Kansas City or Miami or Oklahoma City or Pittsburgh or Raleigh or Sarasota or Warrington or West Palm Beach or Wilmington
OnsiteFull Time
10+ YOEBachelor’s degree in computer science or related field; 10+ years web development with modern languages/frameworks; API integration; SQL; cloud and DevOps experience; CI/CD; security practices; strong communication and collaboration.
Angular, JavaScript, C#, ASP.NET, MVC, SQL, GitHub Actions, Azure DevOps, Azure, CI/CD, APIs, AI/ML
1mo
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Tactical Software Engineer
Arlington or Mount Laurel
$114k-$184k/yr OnsiteFull Time
5+ YOEBachelor’s degree in Computer Science or Software Engineering or equivalent experience; 5 years of software engineering; travel up to 25%; proficient in C, C++, Python, JavaScript, Java; experience with Linux, Agile, DevSecOps; software architecture and system integration; strong communication and collaboration skills.
C, C++, Python, JavaScript, Java, Git, Jenkins, Jira, Maven, Ant, Make, Linux, VMware, Azure, MBSE, X-Windows
1mo
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SDET Engineer
Philadelphia, Pennsylvania, United States
$72k-$130k/yr OnsiteFull Time
2+ YOEBachelor's degree plus 2 years' related experience or equivalent; 2-4 years in development languages and automation tools; Agile, end-to-end testing, problem solving, analytics; 18+ and authorized to work in the US.
TypeScript, JavaScript, Python, Java, Cypress, Selenium, TestNG, Appium, Sauce Labs, Rest Assured, Postman, Cucumber, Jasmine, Protractor
HiringCafe market data
Javascript Developer Jobs market signals in Claymont, DE, US
These signals come from live HiringCafe job inventory, not a static article. Use them to compare the market, then open listings above to apply directly.
Open jobs
210+
Hiring companies
95
Fresh sample
43% new in 30d
Salary visibility
54% show pay
Companies appearing in this market
BoeingInnovative Defense TechnologiesJPMorgan ChaseLockheed MartinVanguardBentley SystemsCapTechT-Mobile
Work location mix in visible results
Hybrid: 33Onsite: 29Remote: 6