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76 javascript react engineer jobs at 35 companies in Allentown, PA

3d
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Application Developer - JavaScript
Vienna or Charlotte or Louisville or Minneapolis or Olympia or Philadelphia or Redlands or San Antonio or St. Louis
$84k-$141k/yr OnsiteFull Time
Esri
Esri: Developing software for digital mapping and spatial data analysis.
2+ YOE2+ years developing web applications with JavaScript; TypeScript and web framework experience preferred. Bachelor's degree in CS/engineering/math/GIS. Familiarity with digital cartography, EM visualization, code management, and CI/CD.
JavaScript, TypeScript, ArcGIS Maps SDK for JavaScript, ArcGIS Experience Builder, React, Angular, Svelte, Vue, WebGL, CI/CD
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3d
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Software Engineer, TypeScript/React
Philadelphia or New York City
$93k-$168k/yr OnsiteFull Time
T-Mobile
T-MobileNASDAQ: TMUS: Provides wireless voice, data, and mobile internet services.
2+ YOE2+ years web development with JavaScript/TypeScript and React, bachelor's degree or equivalent, strong UI development, API integration, and collaboration skills.
JavaScript, TypeScript, React, Redux
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2mo
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Web Developer (React / WordPress - In-Office Philadelphia Suburbs)
Elkins Park, Pennsylvania, United States
$60k-$70k/yr OnsiteFull Time
Nexvel Solutions
Nexvel Solutions: Provides digital marketing and IT services for local businesses.
Proficiency in React, JavaScript, HTML/CSS; WordPress with ACF; headless CMS; REST/GraphQL; translate designs; collaborate across teams.
React, JavaScript, HTML/CSS, WordPress, Advanced Custom Fields, headless CMS, Gatsby, Astro, REST, GraphQL, TailwindCSS, Cursor, Claude Code
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5d
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Lead Full Stack Engineer (.Net, Vue/React) - Fully Remote
United States or Philadelphia
RemoteFull Time
CoverGo
CoverGo: No-code insurance platform for life, health, and P&C insurers.
8+ YOE2+ Mgmt8+ years full-stack experience, 2+ years leading teams, proficiency with .NET Core/C#, GraphQL, MongoDB, Docker, JavaScript and Vue.js/React, cloud platforms, TDD and DDD, strong communication and problem-solving.
.NET Core, C#, GraphQL, MongoDB, Docker, JavaScript, Vue.js, React.js, AWS, Azure, Google Cloud
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5d
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Senior Full-Stack Developer (Java & React)
Trenton, New Jersey, United States
$55-$62/hr HybridFull Time
CAI
CAI: Provides global IT services and contingent workforce management solutions.
10+ YOE10+ years Java and React development experience, Spring Boot microservices, RESTful APIs, Oracle/SQL performance skills, unit testing, CI/CD, bachelor's degree in CS/IT or related.
Java, React, Spring Boot, Spring MVC, Hibernate, JavaScript, CSS, Bootstrap, RESTful APIs, Oracle, SQL, JUnit, Mockito, React Testing Library, CI/CD
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1w
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Engineer
Malvern, Pennsylvania, United States
$120k-$130k/yr OnsiteFull Time
Tata Consultancy Services
Tata Consultancy ServicesNational Stock Exchange of India: TCS: Global provider of IT services, consulting, and business solutions.
10+ YOEStrong React, HTML, CSS, JavaScript/TypeScript (ES5/ES6), GitHub, CI/CD, and Playwright experience; 10+ years of frontend engineering experience.
React, HTML, CSS, JavaScript, TypeScript, ES5, ES6, GitHub, CI/CD, Playwright
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2mo
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Full Stack Software Engineer
King of Prussia, Pennsylvania, United States
$90k-$190k/yr OnsiteFull Time
CACI
CACINYSE: CACI: Provides information technology and professional services to government clients.
5+ YOE5+ years in OO languages with Python; 2+ years in JavaScript/TypeScript; TS/SCI with Poly; BS in CS; full SDLC; cloud, APIs; in-office.
Python, JavaScript, TypeScript, RESTful APIs, AWS, Azure, Kubernetes, React, Angular, Git, GitLab, Jira, Confluence
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1mo
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Senior AEM Developer
Philadelphia, Pennsylvania, United States
$125k-$135k/yr OnsiteFull Time
TELUS Digital
TELUS Digital: Provides global digital customer experience and business transformation solutions.
7+ YOEBachelor's in CS/Engineering; 7–8+ years hands-on AEM experience; strong Java/Servlets/OSGi/Sling expertise; HTML5, CSS3, JavaScript/TypeScript; React and Next.js for headless AEM; GraphQL and CI/CD experience.
Adobe Experience Manager (AEM), AEM Headless, AEM SPA Editor, Content Services, GraphQL, React, Next.js, Java, Servlets, OSGi, Sling Models, Sling, HTML5, CSS3, JavaScript, TypeScript, Java Content Repository (JCR), Oak, Dispatcher, Adobe Marketing Cloud, Adobe Analytics, Adobe Target, Akamai, Git, Azure DevOps, GitHub Actions
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1mo
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Senior Software Engineer | Research Tech | Experienced Hire
Bala Cynwyd, Pennsylvania, United States
OnsiteFull Time
Susquehanna International Group
Susquehanna International Group: Global quantitative trading and market making firm.
5+ YOE5+ years software engineering experience; strong hands-on C#, Python, and React/JavaScript; full-stack backend/frontend comfort; excellent communication; Bachelor’s in CS, CE, math, physics or related.
C#, .NET, Python, React, JavaScript, Microsoft Excel
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2w
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Lead Software Engineer.
New York or Bethlehem or Holmdel
$119k-$195k/yr HybridFull Time
Guardian Life
Guardian Life: Provides life, disability, dental, and vision insurance products.
10+ YOE10+ years building scalable public-facing web applications; expert in JavaScript/TypeScript, Node/React/Next; API and AWS experience; BA/BS in CS or related; strong communication and security awareness.
React, Next, Node, Javascript, Typescript, NestJS, Jest, REST, GraphQL, Redis, AWS, micro-frontends, micro-services, CI/CD
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1w
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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
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1mo
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Lead Developer
Allentown or Louisville or Providence
HybridFull Time
PPL Corporation
PPL CorporationNYSE: PPL: Provides electricity transmission, distribution, and utility services.
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
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1mo
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Senior Software Engineer | Research Tech | Experienced Hire
Bala Cynwyd, Pennsylvania, United States
OnsiteFull Time
Susquehanna International Group
Susquehanna International Group: Global quantitative trading firm specializing in proprietary financial markets.
5+ YOE5+ years software engineering experience with C#, Python, and React; full-stack development; strong communication; Bachelor’s in CS/engineering/math/physics or related.
C#, .NET, Python, React, JavaScript
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3d
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Principal Digital Experience Web Developer
Philadelphia, Pennsylvania, United States
HybridFull Time
Temple Health
Temple Health: Operates a network of hospitals and academic medical centers.
8+ YOEBachelor's or equivalent, 8+ years web/app architecture and front-end development; expertise in React, JavaScript/TypeScript, HTML, CSS, Figma, Azure, CMS/headless CMS, microfrontends, SDLC and CI/CD; provides on-call support.
React, JavaScript, TypeScript, HTML, CSS, Figma, Azure, CI/CD
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1mo
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Full Stack Developer
United States or Philadelphia
$160k-$180k/yr RemoteFull Time
SMB Team
SMB Team: Provides digital marketing and coaching services for law firms.
6+ YOE6+ years full-stack development experience; must show portfolio; autonomous; current on AI tooling; proficiency in JavaScript/TypeScript (React, Node.js), RESTful APIs, GraphQL, cloud (AWS/GCP/Azure), serverless; experience with AI APIs and Git.
JavaScript, TypeScript, React, Node.js, RESTful APIs, GraphQL, AWS, GCP, Azure, Serverless, OpenAI, Anthropic, Git, GitHub, CI/CD, HubSpot, Asana, PandaDoc, Slack, Google Workspace
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1mo
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Software Engineer - Federal Geospatial (Hub-Remote: DC or Philly Metro)
Alexandria or Philadelphia or Washington
$105k-$141k/yr RemoteFull Time
Element 84: Builds cloud-native geospatial software and data processing pipelines.
5+ YOE5+ years as a software engineer; experience with Python, JavaScript, Clojure, React, AWS (S3, IAM, Lambda); full-stack development, automated testing/CI, Scrum experience; bachelor's in a technical major preferred; must live within 100 miles of Alexandria, VA or Philadelphia, PA and be authorized to work in the US without sponsorship.
Python, JavaScript, Clojure, React, Amazon Web Services (AWS), S3, IAM, Lambda, node.js, JIRA, Confluence, Bamboo, MacOS X
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1mo
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Senior Software Engineer | Research Tech | Experienced Hire
Bala Cynwyd, Pennsylvania, United States
OnsiteFull Time
Susquehanna International Group
Susquehanna International Group: Global quantitative trading firm providing proprietary financial market liquidity.
5+ YOE5+ years software engineering experience; hands-on C#, Python, and React; full-stack proficiency; strong communication; Bachelor's in CS, CE, Mathematics, Physics, or related.
C#, .NET, Python, React, JavaScript
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Web Application Developer, Jewish Studies (Temporary, Part-Time)
Philadelphia, Pennsylvania, United States
$7-$55/hr OnsitePart Time
University of Pennsylvania
University of Pennsylvania: Research university offering higher education and healthcare services.
2+ YOEBachelor's degree with 2+ years related experience; full‑stack development with HTML5,CSS,AJAX,JavaScript/jQuery,Python,Django,React; unit testing and Git; strong communication and ability to work 9am-5pm ET.
HTML5, CSS, AJAX, JavaScript, jQuery, Python, Django, React, Git
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1mo
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Full-Stack Cloud Engineer
New York City or Dallas or Tampa or Chicago or Philadelphia or Florham Park
$77k-$202k/yr OnsiteFull Time
PwC
PwC: Providing audit, tax, and management consulting services to businesses.
2+ YOEBachelor's degree, at least 2 years' experience, expertise in cloud CI/CD and container workflows, JavaScript/TypeScript/Node.js/React Native/Next.js, API and microservices design, GitOps, and production deployment of LLM/AI APIs.
JavaScript (JS), React Native, TypeScript, Node.js, Next.js, AWS, Azure, GCP, GitOps, CI/CD, LLM
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2mo
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Full Stack Software Engineer Sr. - TS//SCI Clearance
King of Prussia, Pennsylvania, United States
$93k-$164k/yr OnsiteFull Time
Lockheed Martin
Lockheed MartinNYSE: LMT: Designs and manufactures global security and aerospace systems.
3+ YOEActive Top Secret/SCI clearance and U.S. citizenship; experience with JavaScript/Node and C#, modern web frameworks (React/Angular/etc.), GitLab CI/CD, Agile tools (Jira, Version One, Confluence); front-end unit testing and 3+ years front-end experience preferred.
JavaScript, Node, C#, Angular, React, Vue.js, Ember.js, GitLab, Jira, Version One, Confluence, Redux, MobX, NgRx, Context API, RxJS, HTML5, CSS3, Sass, TypeScript, ES6, Material UI, Ant Design, Bootstrap, Jest, React Testing Library, Karma, Jasmine, CI/CD
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