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Javascript Developer Jobs in Middletown, DE, US
240+ javascript developer jobs from 110+ companies hiring in Middletown, DE, US.
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
2mo
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Junior Software Engineer
Baltimore, Maryland, United States
OnsiteFull Time
Bachelor’s degree in Computer Science or Information Systems; experience with Python, Java, C++, Ruby, or JavaScript; experience leading all SDLC phases; data integration experience; ability to gather requirements and work with users; available for non-traditional hours.
Python, Java, C++, Ruby, JavaScript, SQL, AWS S3, AWS Lambda, AWS SQS, Django, R
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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Associate Director Engineer Software
Baltimore, Maryland, United States
$160k-$180k/yr OnsiteFull Time
8+ YOE8+ years of engineering experience; proven ability to lead multiple teams; experience with web and mobile; cloud-native and JavaScript frameworks; strong communication.
AWS, Angular, JavaScript
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Software Engineer - Level II
Aberdeen Proving Grounds, Maryland, United States
$86k-$150k/yr OnsiteFull Time
3+ YOEUS citizen; Secret clearance; degree with experience in software development and SDLC.
Java, C++, Python, JavaScript, Git, TCP/IP
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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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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
2w
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Mid-Level Software Engineer
East Campus, Maryland, United States
$70k-$190k/yr OnsiteFull Time
3+ YOEMid-level software engineer with full-stack JavaScript (Node.js, TypeScript, React) experience, Docker, Linux, NoSQL, CI/CD, and strong UX/user research emphasis.
JavaScript, Node.js, TypeScript, React, Material UI, Linux, Docker, MongoDB, GitLab CI/CD, AWS, Kubernetes, Python, Java, Spring Boot, OpenCode, Copilot
2d
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Developer Team Lead - Non-Merit
Towson, Maryland, United States
$67-$87/hr HybridFull Time
5+ YOE1+ MgmtLead software development teams; implement SDLC, cloud, and low-code solutions; strong leadership and communication skills.
.NET, C#, JavaScript, REST, SOAP, Azure, Power Platform, Dynamics 365, Oracle Apex, GIS, FME Safe, Espresso, CI/CD, DevOps
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+ YOEFull stack software development with 5+ years experience; React/TypeScript; Python/PySpark; ontology/taxonomy development; Foundry experience preferred.
ReactJS, Redux, JavaScript, TypeScript, Python, PySpark, REST, Git, S3/Parquet
1mo
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Lead Software Engineer (Remote)
Baltimore, Maryland, United States
$113k-$225k/yr RemoteFull Time
8+ YOE8 years in software design/development; Bachelor's in IT or CS, or plus 4 years experience; front-end and back-end development; mentoring; Salesforce tech stack; CI/CD; API integrations.
Salesforce DX, Lightning Web Components, Apex, Copado, Gearset, Salesforce DevOps Center, Git, MuleSoft, REST, SOAP, Platform Events, JavaScript, TypeScript, Data Cloud, Einstein Copilot, Agentforce, LWC, Multi-Cloud
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Digital Content Developer
West Chester, Pennsylvania, United States
OnsiteFull Time
Technical Lead for digital content development; strong HTML/CSS/JavaScript, AEM/CMS, Adobe Target; able to coordinate with UX/IT; 24-hour on-call; Wednesday-Saturday, 3pm-1am.
AEM, CMS, HTML, CSS, JavaScript, JSON, Adobe Target, JQuery, PHP, JSP
1mo
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Enterprise Software Developer
Baltimore, Maryland, United States
$110k-$130k/yr HybridFull Time
5+ YOEBachelor's degree or related experience; 5+ years in software engineering; Agile; US citizen or permanent resident; hybrid in-office work; cloud, C#, .NET, SQL, JavaScript; AI enablement roadmap.
Azure, Azure managed services, LLM tools, C#/.NET Core, JavaScript SPA frameworks, SQL, ETL tools, AWS, SSIS, Informatica, Boomi, Mulesoft, Glue, Talend, Angular, Salesforce, Snowflake, Workday, Tableau, Qlik, Python
6d
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US E- GPS Consulting Services- Senior Salesforce Developer- Customer/S&S- USDC (AS)
Gilbert or Lake Mary or Mechanicsburg or Atlanta or Charlotte or Dallas or Houston or Philadelphia
HybridFull Time
7+ YOE7+ years IT experience with Salesforce development; Bachelor's degree; strong JavaScript, Salesforce modules, APIs; hybrid US Delivery Center work.
Apex, Visualforce, Lightning Web Components, Lightning Design System, Salesforce DX, Git, Jenkins, Jira, REST APIs, SOAP APIs, OAuth
1w
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Software Engineer - Federal Geospatial (Hub-Remote: DC or Philly Metro)
Alexandria or Philadelphia
$105k-$141k/yr RemoteFull Time
Element 84: Builds cloud-native geospatial software and data processing pipelines.
5+ YOE5+ years software engineering; full-stack Python/JavaScript; Clojure; React; AWS S3/IAM/Lambda; NOAA CAC badge; remote Scrum; BS in technical field.
Python, JavaScript, Clojure, React, AWS, S3, IAM, Lambda, Node.js, MacOS X
2w
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Associate Software Engineer
King of Prussia, Pennsylvania, United States
RemoteFull Time
1+ YOEAssociate’s degree in CS/IS required; related Bachelor’s preferred; 1+ years programming/web development; HTML/JS/CSS required; SQL or similar a plus; strong English.
Cerner Discern Visual Developer, Komodo, Notepad++, HTML, JavaScript, CSS, SQL
2mo
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Software Developer
Philadelphia, Pennsylvania, United States
HybridFull Time
Bachelor’s degree or equivalent in a technical field; experience with Core Java or .NET; knowledge of frameworks and cloud services; strong problem solving and collaboration skills.
Java, C#/.NET, Spring Framework, J2EE, REST, API, Jenkins, Docker, Kubernetes, AWS, Azure, SQL, NoSQL, Cosmos DB, Data Factory, Event Hubs, Git, Maven, NUnit, SageMaker, Spark, Swagger, OData, EJB, Angular, React, Vue.js, HTML, CSS, JavaScript
2mo
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Senior Software Engineer, Platform
Philadelphia or New York
$116k-$209k/yr OnsiteFull Time
4+ YOEDevelop and optimize platform services; cloud focus; Agile; automation; 4-7 years platform experience; AWS preferred.
AWS, Kubernetes, Go, Java, Scala, Python, JavaScript
2mo
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Staff Software Engineer (Secret) {S}
King of Prussia, Pennsylvania, United States
HybridFull Time
5+ YOEBachelor's in CS or related field; 5+ years Java/C#/Python; 1+ year JavaScript/TypeScript; in-office 3+ days/week with potential for more; experience with Java, Spring Boot or Quarkus; SDLC, microservices, RESTful APIs; Agile/Scrum; active Secret U.S. Government security clearance.
Java, C#, Python, JavaScript, TypeScript, Spring Boot, Quarkus, REST, AWS, Azure, Kubernetes
2w
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Senior SharePoint Developer (King of Prussia, PA, US, 19406)
King of Prussia, Pennsylvania, United States
$101k-$164k/yr OnsiteFull Time
8+ YOE8+ years in SharePoint development; BA/BS required; design, develop, deploy SharePoint/M365 solutions; on-prem and cloud; mentor junior staff.
SharePoint 2016, SharePoint Subscription Edition, SharePoint Online, SPFx, C#, NET, JavaScript, TypeScript, React, HTML5, CSS3, PowerShell, Power Platform, Power Automate, Power Apps, Power BI, Microsoft Graph API, REST APIs, CSOM, GitHub
2mo
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Software Engineer II
Annapolis Junction, Maryland, United States
$76k-$144k/yr OnsiteFull Time
2+ YOETypically requires STEM degree and 2+ years of software development experience; TS/SCI clearance or ability to obtain; strong C++ in Linux; scripting and XML; UI and web skills preferred.
C++, Linux, Python, Bash, Perl, JavaScript, XML, Qt, Angular, TensorFlow, git
2w
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PCS Retirement, LLC - QA Automation Engineer (Hybrid - Philadelphia)
Philadelphia, Pennsylvania, United States
$85k-$110k/yr HybridFull Time
5+ YOE5+ years in software automation testing; strong programming (SQL, JavaScript, HTML, JSON, CSS); experience with mabl/Selenium; Agile environment; knowledge of Vue.js, Azure DevOps; hybrid schedule in Philadelphia.
mabl, Selenium, Postman, JMeter, SQL, JavaScript, HTML, JSON, CSS, Vue.js, Azure DevOps
1mo
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Senior Lead Software Engineer - Contact Center (CCaaS)
Wilmington, Delaware, United States
OnsiteFull Time
5+ YOE5+ years software engineering; experience with Amazon Connect and AWS; Python/Node.js/JavaScript; CI/CD; Omnichannel; CRM integrations; BS in CS/IT/Math; 10+ years IT preferred
Python, Node.js, JavaScript, CI/CD, CloudFormation, Terraform, Amazon Connect, AWS
2mo
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Senior Software Developer (Secret Clearance Required)
Aberdeen, Maryland, United States
HybridFull Time
3+ YOEDoD security clearance, 3-5+ years in software development, strong Android/Java/C/C++, DevOps tools, Linux, APIs, Docker, Kubernetes, cloud, Agile.
Git, Gitlab, Jira, Nexus, Artifactory, Gradle, Bash, Python, Docker, Kubernetes, Linux, Android, Java, JavaScript, C, C++, C#, APIs, NVIDIA CUDA, ElasticSearch, Kibana
3w
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Software Engineer-Mobile Development (Android)
Philadelphia, Pennsylvania, United States
$65k-$80k/yr OnsiteFull Time
5+ YOEStrong proficiency in React Native with Android focus; solid Android fundamentals; experience with Android Studio, Gradle, Android SDK; Java/Kotlin/JavaScript/TypeScript; REST APIs; Git; AWS; SQL databases; automated tests; team collaboration.
React Native, Java, Kotlin, Android Studio, Gradle, Retrofit, Room, WorkManager, Google Play Console, AWS, Git, SQL, PostgreSQL, Oracle, MSSQL, Node.js, .NET Core, PHP, Docker, CI/CD, API design and development
6d
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Front-End Engineer (Healthcare Consulting)
Philadelphia, Pennsylvania, United States
$96k-$140k/yr HybridFull Time
3+ YOE3+ years of front-end development with React; knowledge of back-end/API operations; healthcare or regulated industry experience preferred.
React, JavaScript, Python, HTML, CSS, Tailwind, Redux, Zustand, Vite, Webpack, Jest, React Testing Library, Playwright, GitHub Actions, CI/CD, Node.js, NPM, Yarn, PNPM, CSS Modules
2w
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Software Applications Engineer
Aberdeen Proving Ground, Maryland, United States
HybridFull Time
5+ YOEDoD Secret clearance; Bachelors in computer/science-related field; 5+ years in software applications engineering; .NET full-stack with C#, MudBlazor, HTML/CSS/JS; Azure/DevOps; API development; security models; hybrid role near Aberdeen Proving Ground, MD.
C#, dotnet, Blazor, MudBlazor, HTML, CSS, JavaScript, Razor, Entity Framework, SQL, Azure, DevOps, OpenID Connect, OAuth 2.0, Microsoft Entra ID, Git
2mo
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Technical Architect, Full Stack Developer
King of Prussia, Pennsylvania, United States
$175k/yr OnsiteFull Time
10+ YOE10+ years of software development/architectural experience; Salesforce expertise; strong integration, data, and system design skills; leadership and mentoring abilities.
Salesforce.com, Zuora, ServiceMax, FinancialForce, CPQ, Apex, Lightning Web Components, Visualforce, Boomi, MuleSoft, Jitterbit, SQL, ETL, Data Loader, Force.com, Java, JavaScript, XML, SAML, SSO, OAuth, APIs
6d
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Senior Quality Test Engineer II
Philadelphia, Pennsylvania, United States
$87k-$144k/yr OnsiteFull Time
Automated QA engineer with JavaScript/TypeScript, Webdriver.io or Playwright, API testing, CI/CD, and accessibility/performance testing.
Webdriver.io, Playwright, RESTful API testing, Cucumber, Jenkins, GitHub Actions, BrowserStack, Axe, Pa11y, WAVE, K6, Locust, JMeter
3d
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Optimization Tech Debt Engineer (Engineer Software 2) - 27217 (Aberdeen Proving Ground, MD, Remote, United States)
Aberdeen Proving Ground, Maryland, United States
$78k-$90k/yr RemoteFull Time
2+ YOE2 years experience with Bachelors in related field; 0 years with Masters; or HS diploma with 6 years relevant experience; Linux, Agile, Java/JavaScript, Node.js, React.js, C++/C#, Visual Studio; active Secret Clearance.
Java, JavaScript, Node.js, React.js, C++, C#, Linux, Confluence, Jira, Git, Visual Studio
1mo
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Fullstack Software Engineer (C# / Vue.js)
Wilmington, Delaware, United States
HybridFull Time
2+ YOE2–5 years of full-stack web development experience with C#, .NET, Vue.js; strong SQL Server; REST, MVC; Git; Agile practices.
C#, NET, ASP.NET, REST APIs, Vue.js, SQL Server, Entity Framework, Git, CI/CD, JavaScript, HTML, CSS, MVC, ASP
3w
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Quality Test Engineer III
Philadelphia, Pennsylvania, United States
$72k-$119k/yr OnsiteFull Time
Design, develop, and maintain automated test frameworks; RESTful API testing; CI/CD integration; accessibility, performance testing; JS/TS expertise.
Webdriver.io, Playwright, JavaScript, TypeScript, RESTful API testing, Cucumber, Gherkin, Jenkins, GitHub Actions, BrowserStack, Axe, Pa11y, WAVE, K6, Locust, JMeter
2mo
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Principal Software Engineer - 90402969 - Onsite - Washington DC, Wilmington, Philadelphia (Washington, DC, US, 20001)
Washington or Wilmington or Philadelphia
$125k-$161k/yr OnsiteFull Time
7+ YOEBachelor's degree or equivalent; 7+ years experience; onsite 4-5 days; strong Java/JavaScript/TypeScript/SQL; Angular/React; Spring/SpringBoot; REST; cloud; data streaming
Java, JavaScript, TypeScript, SQL, Angular, React, Node.js, Spring, SpringBoot, REST, Cloud, Data streaming, Version control
1w
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Senior Application Developer
Annapolis Junction, Maryland, United States
$194k-$249k/yr OnsiteFull Time
12+ YOETop Secret clearance with Full Scope Polygraph; US citizenship; 12 years of relevant experience with a Bachelor's or 10 years with a Master's; ability to obtain/maintain required clearance.
C, C++, Python, Rust, Go, Git, Subversion, Jira, Confluence, Ghidra, Java, JavaScript, PowerShell, Bash, Assembly
1mo
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Intern, Marketing Developer
Harrisburg or Mount Laurel or Philadelphia
HybridInternship
Some College coursework; coding ability in at least one language; attention to detail; ability to multitask; good communication; curiosity about work.
HTML, CSS, JavaScript
2mo
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Software Engineer
Fort Meade, Maryland, United States
$200k-$230k/yr OnsiteFull Time
14+ YOETS/SCI with poly; Bachelor's in CS/Engineering; 14 years experience; Linux, C++, Java; scripting; Git; Docker; strong problem-solving and communication.
C++, Java, Shell, Python, JavaScript, Bash, Git, Docker, Linux
1mo
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Software Engineer
Philadelphia, Pennsylvania, United States
$80k-$88k/yr HybridFull Time
1+ YOESoftware Engineer with 1-3 years of experience, BS in MIS/CS/Engineering, strong communication, hybrid work in Philadelphia.
Cloud platforms, Databricks, PySpark, CI/CD, Docker, Terraform, LangChain, Python, Java, SQL, JavaScript, .NET, React, Angular, Azure OpenAI, AWS Bedrock
2mo
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Software Engineer - Full Stack (Associate level) (Philadelphia, PA, US, 19106)
Philadelphia, Pennsylvania, United States
OnsiteFull Time
4+ YOE4+ years software engineering; full stack with AWS, Python, SQL; UI development; cloud and data pipelines; Bachelor’s in CS/CE.
AWS, S3, Redshift, Lambda, Airflow, Docker, Jenkins, REST APIs, Python, SQL, React, AngularJS, ReactJS, DJANGO, XML, CSS, HTML, JavaScript
HiringCafe market data
Javascript Developer Jobs market signals in Middletown, 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
240+
Hiring companies
110+
Fresh sample
43% new in 30d
Salary visibility
73% show pay
Companies appearing in this market
BoeingT-MobileJPMorgan ChaseElsevierRELXUniversal Health ServicesAmtrakAugustine Consulting
Work location mix in visible results
Onsite: 36Hybrid: 25Remote: 6