31 front end developer jobs at 23 companies in Downingtown, PA
3w
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Frontend Developer
Malvern, Pennsylvania, United States
$110k-$120k/yr OnsiteFull Time
10+ YOE10+ years frontend experience with React, JavaScript/TypeScript, HTML5, CSS3, GitHub, CI/CD, and automated testing (Playwright). Bachelor's in Computer Science required.
React, JavaScript, TypeScript, ES5, ES6, HTML5, CSS3, GitHub, CI/CD, Playwright
1w
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Front-End Developer
Miami or Delaware or Atlanta or Philadelphia or Austin or Houston or Dallas or Salt Lake City or Phoenix or Charlotte
HybridFull Time
5+ YOE5+ years software development experience with C#, .NET 10, ASP.NET, SQL Server, DDD, CI/CD (Azure DevOps), PowerShell, containerization (Docker), Linux/Windows; mentoring and enterprise application experience required.
C#, .NET 10, ASP.NET, SQL Server, Entity Framework, Dapper, Azure DevOps, PowerShell, Linux, Windows Server, Docker, React, Python, WebSockets, SignalR, RabbitMQ, Kafka, Azure Service Bus, Git, Blazor Server
2d
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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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Frontend Software Engineer
Philadelphia, Pennsylvania, United States
HybridFull Time
Strong frontend experience with JavaScript, VueJS, Vite, HTML, CSS; experience with REST/OpenAPI, OAuth/SAML, frontend testing, CI/CD, and building data-heavy user interfaces.
JavaScript, VueJS, Vite, HTML, CSS, REST, OpenAPI, OAuth, SAML
1mo
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Frontend Software Engineers - King of Prussia, PA
King of Prussia, Pennsylvania, United States
$75k-$150k/yr OnsiteFull Time
2+ YOEU.S. citizen with active Secret clearance, Bachelor's in STEM, 2+ years professional experience, frontend development with Angular/JavaScript/CSS/HTML, UI/UX tools, Docker and REST API experience.
Figma, MockFlow, UXPin, Axure, Angular, javascript, CSS, HTML, Docker, REST APIs, Cypress, Selenium, Playwright, Jest, Gitlab CI/CD, Helm, Kubernetes, gRPC, Python, Flask, Figma AI, UX Pilot, Google Stitch
2mo
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Front End/Angular 2+/Full Stack Java Developer
Hanover, Maryland, United States
OnsiteFull Time
1+ YOE1+ years of related experience in Java and web development (Angular 2+/ReactJS), OO Java (1.8+), Spring/Spring Boot, MongoDB or relational databases; US citizenship; Top Secret SCI + Polygraph clearance required.
Angular, Java, Spring, Spring Boot, MongoDB, ReactJS, Web Development
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
1mo
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Front End Lead Part Time
Warrington, Pennsylvania, United States
$19/hr OnsitePart Time
Basic math skills required; prior leadership, membership/sales or cashier experience preferred; ability to lift up to 30+ lbs; operate POS and MyWork; coach and develop frontline team members.
MyWork, POS, ChatGPT
1d
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AI Developer
Minneapolis or Omaha or Philadelphia or Clifton Park or Cincinnati
OnsiteFull Time
3+ YOE3+ years full-stack/front-end development, experience with LLM APIs and generative AI APIs, prompt engineering, API integration, UX/UI and collaboration with operations teams.
LLM APIs, Generative AI APIs
2w
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Software Engineer Lead - Angular/Java
Pittsburgh or Philadelphia
OnsiteFull Time
3+ YOEExperience developing Angular front-ends and Java/Spring back-ends, microservices and REST integration, 3+ years' industry experience, strong design, testing, and troubleshooting skills.
Angular, Java, Spring, REST
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
6d
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Principal Software Engineer
Lititz or United States
OnsiteFull Time
12+ YOE12+ years software engineering experience; expert in scalable distributed systems, full-stack development, front-end frameworks, cloud-native apps, and technical leadership.
Vue.js, TypeScript, JavaScript, HTML, CSS, C#, .NET, Java, AWS, Kafka, Spark, Hadoop, Presto, GitHub Copilot, Claude Code, Codex
6d
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Principal Digital Experience Web Developer
Philadelphia, Pennsylvania, United States
HybridFull Time
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
2mo
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Sr. Full Stack Software Developer (Camden, NJ, US)
Camden, New Jersey, United States
$120k-$150k/yr OnsiteFull Time
10+ YOESenior-level full-stack developer with 10+ years in enterprise environments; strong C#, .NET, REST, front-end tech, SQL Server, security, and architecture leadership.
C#, NET Core, NET Framework, REST, Blazor, HTML5, CSS3, JavaScript, Bootstrap, SQL Server, OAuth2, OIDC, Azure AD/Entra ID, Git, CI/CD, Docker, CQRS
2mo
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Lead Software Engineer
Camden, New Jersey, United States
$116k-$140k/yr HybridFull Time
8+ YOE8+ years Java, 4+ years AEM, 3+ years cloud, AWS microservices, front-end tech, build tools.
Java, Spring Boot, AEM, AWS, Maven, Gradle, Vue.js, React, jQuery, CSS, HTML5, S3, EC2, Lambda, API Gateway, Docker, GitHub Actions
2w
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Java fullstack developer
Addison or Charlotte or Newark or Pennington
$76k-$120k/yr OnsiteFull Time
Experience with Core Java, Spring (MVC/Boot), microservices, REST/SOAP, Oracle DB, front-end scripting, cloud platforms; Bachelor's degree or equivalent; authorized to work in the US without sponsorship.
Java, Core Java, J2EE, Spring MVC, Spring Boot, Microservices, REST, SOAP, Oracle Database, Hibernate, JSP, JavaScript, WebSphere, JBoss, AWS, GCP, Azure
1w
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Full Stack Developer
Philadelphia, Pennsylvania, United States
OnsiteFull Time
3+ YOE3+ years Java experience, strong Python and Spring skills, front-end framework experience (React/Angular/TypeScript), Azure and CI/CD familiarity, experience with agentic AI and LangChain-style frameworks, strong problem-solving and communication.
Java, Python, Spring, Spring MVC, Spring Data, Spring Security, Spring Boot, React, Angular, TypeScript, RxJS, HTML, CSS, Node.js, SQL, NoSQL, OpenShift, Azure, CI/CD, Unix/Linux, LangChain, LangGraph, CrewAI
1mo
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Senior Software Engineer - Java Microservices
Berwyn or New York City
$82k-$193k/yr OnsiteFull Time
10+ YOE10+ years experience with Core Java/J2EE, Spring Boot/MVC, RESTful services, front-end frameworks (Angular/VueJS), RDBMS (MySQL/PostgreSQL/Oracle), GIT, Maven, Jenkins; Agile experience and strong analytical/problem-solving skills.
Java, J2EE, Spring MVC, Angular, Spring Boot, Restful Web Services, Hibernate, Spring JPA, JavaScript, CSS, HTML, jQuery, Ajax, VueJS, MySQL, PostgreSQL, Oracle Database, GIT, Maven, Jenkins, Spring Cloud, Nginx, NodeJS, Redis
6d
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Senior Software Engineer
Wilmington, Delaware, United States
HybridFull Time
Strong C#/.NET Core development skills, front-end framework and JavaScript/TypeScript proficiency, experience with Entity Framework Core, SQL Server, Azure Functions, AI-assisted tools, and test automation.
C#, .NET Core, Blazor Server, Blazor WebAssembly, GitHub Copilot, Cursor, Claude Code, Entity Framework Core, SQL Server, Azure Functions, Bootstrap, Playwright, MediatR, Fluxor, Polly, Docker, Kubernetes, Artillery, JMeter, K6, Locust, Azure AI Foundry, Azure OpenAI Service, Git, React, Angular, Vue, JavaScript, TypeScript
4w
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Senior Full Stack Engineer
Broomall or United States
$150k-$175k/yr RemoteFull Time
7+ YOE7+ years professional software development with strong C#/.NET and SQL Server, front-end experience with Angular/TypeScript, Azure and CI/CD tooling experience; bachelor\u0002s preferred; must be US resident; no visa sponsorship.
C#, .NET Framework, .NET Core, ASP.NET Web Forms, Angular, TypeScript, JavaScript, HTML, CSS, SQL Server, Azure, Jenkins, Terraform, Terragrunt
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