121 javascript developer jobs at 46 companies in Slatington, PA
2mo
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IS Developer
Exton or Lexington or Peachtree City or Bridgman or Holland or Detroit or Houston
HybridFull Time
Experience in manufacturing software (Information/MES/IIoT), industrial controls and PLCs, network design and virtualization; advanced development with Python/Java/JavaScript/Microsoft .NET; DB familiarity and use of GitHub Copilot/Claude.
GitHub Copilot, Claude, Python, Java, JavaScript, Microsoft .NET, Microsoft SQL Server, PostgreSQL, MySQL, Oracle, InfluxDB, MQTT, Azure DevOps, AWS, Node-Red, Docker, Ignition, Sepasoft, Cirrus Link Solutions, Rockwell, Siemens, Aveva/Wonderware, GE
2mo
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IS Developer
Exton or Lexington or Peachtree City or Bridgman or Holland or Detroit or Houston
HybridFull Time
Experience with industrial/ manufacturing software (MES/IIoT), industrial controls and PLC platforms; development using Python, Java, JavaScript, or Microsoft .NET; database familiarity (Microsoft SQL Server, PostgreSQL, MySQL, Oracle, InfluxDB); practical use of GitHub Copilot/Claude and LLM concepts.
GitHub Copilot, Claude, Python, Java, JavaScript, Microsoft .NET, MES, IIoT, PLC, Rockwell, Siemens, Aveva/Wonderware, GE, MQTT, Microsoft Azure DevOps, AWS, Node-Red, Docker, Microsoft SQL Server, PostgreSQL, MySQL, Oracle, InfluxDB, Inductive Ignition, Sepasoft, Cirrus Link Solutions
1mo
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Lead Developer
Allentown or Louisville or Providence
HybridFull Time
7+ YOEBachelor's degree (or equivalent), 7+ years experience (Lead) or 5+ years (Senior); strong software development background with C#, Java, JavaScript/TypeScript, front-end frameworks (Angular/React), APIs/JSON, and SQL; experience with microservices, cloud, containerization and Kubernetes preferred.
C#, Java, Python, JavaScript, TypeScript, Angular, React, SQL, JSON, APIs, Microservices, DevOps, Multi-Cloud, IoT, Intelligent Automation, RPA, Test automation, Machine Learning, Artificial Intelligence, Kubernetes, Azure Kubernetes Service (AKS), SAP ABAP
1w
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Application Developer I
Coppell or Fort Washington
OnsiteFull Time
1+ YOE1-2+ years full-stack development experience with T-SQL, .NET/C#, JavaScript framework (Angular), APIs, JWT, MSSQL, SSMS; familiarity with SDLC/Agile and cloud platforms.
T-SQL, .NET Framework, C#, JavaScript, Angular, APIs, JWT Token Authentication, MSSQL, SSMS, JSON, XML, ASP.NET, C++, Microsoft Azure, Excel, SQL
1mo
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Staff Software Engineer (Frontend Developer)
Colorado Springs or King of Prussia or California or Massachusetts or New York or Colorado or Hawaii or Illinois or Maryland or Minnesota or New Jersey or Vermont or Washington or District of Columbia
$114k-$227k/yr HybridFull Time
5+ YOEFrontend development with Angular, JavaScript, CSS, HTML; REST and Docker experience; UI/UX tools and test frameworks; 5+ years relevant experience; Secret clearance and U.S. citizenship required/preferred candidates in CO or PA.
Angular, JavaScript, CSS, HTML, REST, Docker, Figma, MockFlow, UXPin, Axure, Cypress, Selenium, Playwright, Jest, Kubernetes, Helm, GitLab CI/CD, gRPC, Python, Flask
1w
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Engineer, Site Reliability
Malvern or Charlotte
HybridFull Time
8+ YOE8+ years experience with 2+ years development; expertise in distributed systems, Java/JavaScript, AWS, OpenTelemetry, Python, observability, cloud-native and production reliability.
Java, JavaScript, AWS, OpenTelemetry, Python
2w
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Engineer
Malvern, Pennsylvania, United States
$110k-$130k/yr OnsiteFull Time
10+ YOEStrong React, HTML, CSS, JavaScript/TypeScript, GitHub, CI/CD, and automated testing (Playwright); 10+ years experience; bachelor in computer science required.
CSS, HTML, React, JavaScript, TypeScript, GitHub, CI/CD, Playwright
1w
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SQL Developer & Analyst
New Holland, Pennsylvania, United States
$70k-$80k/yr OnsiteFull Time
2+ YOE2+ years SQL development experience; proficiency with Microsoft SQL Server/T-SQL, .Net (C#, VB), JavaScript, html, TypeScript, and Crystal Reports; bachelor's in Information Systems/Computer Science or equivalent; ERP experience; travel to Ohio required.
.Net (C#, VB), JavaScript, html, typescript, Crystal Reports, SQL, Microsoft SQL Server, T-SQL, Windows Server, Macola ES, ERP
1w
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Engineer, Site Reliability
Malvern, Pennsylvania, United States
HybridFull Time
8+ YOERequires 8+ years of related experience, 2+ years of development experience, a degree or equivalent experience, Java or JavaScript, AWS, cloud-native microservices, distributed systems, observability, and Python or similar scripting.
Java, JavaScript, AWS, OpenTelemetry, Python
1mo
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Senior Developer / Lead Developer
Allentown or Providence or Louisville
HybridFull Time
5+ YOEBachelor's degree, 5+ years software development experience (senior) or 7+ (lead); proficiency in C#, Java, TypeScript, frontend frameworks, APIs and SQL; experience with cloud, microservices, and emerging tech.
C#, Java, TypeScript, JavaScript, Python, Angular, React, SQL, Microservices, Cloud Architecture, APIs, SAP ABAP, SAP S/4HANA, Kubernetes, Azure Kubernetes Service (AKS), DevOps, RPA, Artificial Intelligence
3d
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Web Developer I (Webflow)
Ann Arbor or Wayne or Austin or United States
$60k-$70k/yr HybridFull Time
2+ YOERequires 2+ years of Webflow production experience or equivalent, responsive Webflow portfolio, HTML/CSS, basic JavaScript, CMS, accessibility, performance, QA, troubleshooting, and documentation skills.
Webflow, Figma, HTML, CSS, JavaScript, Marketo, Google Tag Manager, WordPress, Gutenberg, Google Search Console, Git
2mo
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MES Software Engineer/Data Analyst
Breinigsville, Pennsylvania, United States
$110k-$176k/yr OnsiteFull Time
6+ YOEBS+8 yrs or MS+6 yrs in relevant field; experience developing and supporting MES platforms; programming in SQL, Python, C#, JavaScript, .NET; knowledge of REST APIs, OPC UA, MQTT, PLC/SCADA integrations; AI/ML and manufacturing analytics experience.
Siemens Opcenter, Rockwell FactoryTalk, Ignition, AVEVA/Wonderware, SAP ME/MII, Tulip, Critical Manufacturing, Apriso, SQL, Python, C#, JavaScript, .NET, REST APIs, OPC UA, MQTT, PLCs, SCADA, IoT, AWS, Azure, Google Cloud, SPC
1w
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SharePoint Developer
Bethlehem, Pennsylvania, United States
OnsiteFull Time
5+ YOE5+ years developing SharePoint Online/Microsoft 365 solutions, experience with SPFx, Power Platform, Dataverse, PowerShell, and stakeholder requirement gathering.
SharePoint Online, SharePoint Framework (SPFx), Power Automate, Power Apps, Dataverse, Microsoft 365, Microsoft Entra ID, PowerShell, Microsoft Purview, JavaScript, TypeScript, React
3w
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Senior Software Engineer
New York City or Bethlehem or Holmdel
$95k-$156k/yr HybridFull Time
4+ YOE4+ years building public-facing web applications; advanced JavaScript/TypeScript and modern frameworks; API and microservices experience; strong problem-solving and security awareness.
JavaScript, TypeScript, Node, React, Next, NestJS, Jest, REST, GraphQL, Redis, HTML, CSS, AWS, CI/CD, OWASP
1w
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Junior Front End Developer
Fort Washington or Pennsylvania or New Jersey or New Hampshire or Delaware or Colorado or South Dakota or Texas or Wyoming or Alaska or Florida
$55k-$65k/yr RemoteFull Time
0+ YOEBasic proficiency in JavaScript, TypeScript, HTML5, CSS3; familiarity with Angular, responsive design, Git; bachelor's degree or equivalent experience; up to two years frontend experience through projects or work.
Angular, JavaScript, TypeScript, HTML5, CSS3, Git, WalkMe
2w
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Software Engineer I
Reading or Tampa
OnsiteFull Time
Penske Truck Leasing: Provides commercial truck leasing, rental, and vehicle maintenance services.
5+ YOEBachelor's in CS/CE or equivalent, 5+ years programming (Java, RPG, etc.), full‑stack experience (React/Angular/HTML/CSS/JavaScript), REST/myBatis/Spring, relational DB design, Agile, and strong communication.
Java, RPG, React, Angular, jQuery, HTML, JavaScript, CSS, Spring framework, Spring-MVC, myBatis, RESTful API’s, Agile, DevOps Tools, CI/CD
3d
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Software Engineer
King of Prussia or Aurora
$69k-$142k/yr HybridFull Time
3+ YOEBachelor's degree in computer science or related field plus 3 years of software development experience, or equivalent. Requires modern programming, Git, Agile, RESTful API, web development, and willingness to obtain TS/SCI clearance.
Python, Java, Spring Boot, React, AWS, Azure, Kubernetes, JavaScript, TypeScript, C#, Git, RESTful APIs, Docker, PostgreSQL, MySQL, Jenkins, GitLab CI, GitHub Actions
1mo
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Salesforce Software Engineer
Pennsylvania or Florida or Dresher
RemoteFull Time
2+ YOEMinimum 2 years software engineering experience with Salesforce Service Cloud; knowledge of Lightning Web Components, Apex, JavaScript/jQuery, integrations, CI/CD, Agile/Scrum, automated testing, and strong communication skills.
Salesforce, Salesforce Service Cloud, Lightning Web Components, Apex, JavaScript, jQuery, JS Frameworks, Agile, Scrum, Continuous Integration, Continuous Delivery
4d
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Software Engineer - AI Development
Rahway or North Wales or West Point
$87k-$137k/yr HybridFull Time
Bachelor's degree in computer science, software engineering, information technology, or related field; software development fundamentals; problem-solving, collaboration, and technical communication skills.
Amazon Web Services (AWS), React, Python, Databricks, Microsoft Power Platform, GitHub, Microsoft SharePoint, JavaScript, TypeScript, Microsoft Azure
2mo
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QA Automation Engineer / Developer
Mount Laurel or Warminster
$90k-$115k/yr RemoteFull Time
3+ YOE3+ years in software QA and test automation; experience with Selenium/Cypress/Playwright; API testing with Postman/REST-assured; CI/CD with Jenkins/GitLab/Azure DevOps; strong programming in Java/JavaScript/Python/C#; SQL and data testing.
Selenium, Cypress, Playwright, Postman, REST Assured, Jenkins, GitHub/GitLab, Azure DevOps, JIRA, SQL
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