30 software engineer front end developer jobs at 22 companies in Middletown, DE
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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
4d
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Front-End Software Engineer (3075)
Philadelphia, Pennsylvania, United States
$73k-$91k/yr OnsiteFull Time
3+ YOEBachelor's degree in information systems, computer science, engineering, or related field plus 3–5 years of software engineering experience, or equivalent education and experience. Requires frontend framework and web technology expertise.
Angular, React, Vue, Tailwind CSS, Bootstrap, Figma, RESTful APIs, GraphQL, Laravel, Node.js, JavaScript, TypeScript, HTML5, CSS3, SASS/SCSS, RxJS, NgRx, Axios, Fetch, Express, Django, ARIA, Git, GitHub, GitLab, Jest, Cypress, Jasmine, Vite, Inertia.js
3w
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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
1mo
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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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Lead Frontend Engineer
Baltimore, Maryland, United States
$115k-$160k/yr HybridFull Time
8+ YOEBachelor's degree in computer science, computer engineering, or related field, or equivalent experience; 8+ years of related experience; expert Flutter, accessibility, mobile release, monitoring, architecture, and mentoring skills.
Flutter, BLoC, Riverpod, Redux, DevTools, Swift, Kotlin, Claude, Cursor, Codex, iOS App Store, Google Play Store, WCAG
2mo
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Software Engineer – Front-End Focus (.NET) - (Remote)
Baltimore or United States
$75k-$115k/yr RemoteFull Time
3+ YOEUS authorization and 3 of last 5 years residency, ability to obtain Public Trust clearance, Bachelor’s in CS/Engineering, 3+ years full-stack experience with front-end focus using .NET, React/Next.js, Azure, CI/CD, and strong communication skills.
.NET, ASP.NET Core, Core MVC ASP.NET, Entity Framework, LINQ, React, Next.js, CSS, Agentic AI, Azure, Azure Web Apps, Azure Functions, Azure SQL Database, Team Foundation Server (TFS), Octopus Deploy, Git, SQL, TypeScript, PA11Y, Razor, Blazor, Azure DevOps, Azure Cognitive Services, Logic Apps, Docker, Kubernetes, Azure Kubernetes Service (AKS), OAuth, JWT, Azure Active Directory, Azure AD B2C
1w
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UI/UX Front End Developer
Philadelphia or Ambler or Pune or Medellín
RemoteFull Time
5+ YOERequires 5–7+ years in frontend development, strong Angular, TypeScript, RxJS, HTML5, and CSS/SASS skills, component architecture experience, Git/GitHub, CI/CD, cloud familiarity, and agile experience.
Angular, TypeScript, RxJS, HTML5, CSS, SASS, Git, GitHub, CI/CD, DevOps, RESTful APIs, WCAG
1mo
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Staff Engineer - Software, Frontend Platform Engineering
Baltimore, Maryland, United States
$130k-$160k/yr OnsiteFull Time
8+ YOE8+ years frontend software engineering experience; deep expertise in Angular, JavaScript/TypeScript, micro frontend architectures, observability, performance, API integration, and technical leadership; BS in CS preferred.
Angular, JavaScript, TypeScript, AWS
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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
2w
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Sr Staff Fullstack Developer (Frontend focused)
Exton or Boulder or Huntsville or Dayton
$136k-$204k/yr OnsiteFull Time
4+ YOEBachelor's with 8 years, master's with 6, or PhD with 4; front-end and back-end development expertise, cloud deployment, web components, Git, Agile, and testing experience.
HTML5, CSS3, JavaScript, React, Angular, C#, Java, Python, Node.js, Docker, Kubernetes, AWS, Microsoft Azure, Git, Jasmine, Karma, Jest, Vitest, Ansys
1w
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Software Engineer Sr - E3
King of Prussia, Pennsylvania, United States
$110k-$205k/yr OnsiteFull Time
3+ YOERequires JavaScript/Node, C#, modern web frameworks, GitLab pipelines, Agile/Scrum, Top Secret clearance with SCI eligibility, and front-end development experience with React or Angular.
JavaScript, Node.js, C#, Angular, React, Vue.js, Ember.js, GitLab, Agile, Jira, Version One, Confluence, RxJS, Redux, MobX, NgRx, Context API, HTML5, CSS3, Sass, TypeScript, Material UI, Ant Design, Bootstrap, Jest, React Testing Library, Karma, Jasmine
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
3mo
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Full Stack Software Engineer
Annapolis Junction, Maryland, United States
OnsiteFull Time
3+ YOEExperienced software engineer skilled in Python/Java, front-end web tech, data processing, and streaming tools. Top Secret clearance required with polygraph. U.S. work authorization; no visa sponsorship.
Python, Java, Streamlit, TypeScript, HTML, CSS, JavaScript, React, Angular, Vue, Apache Spark, Jupyter Notebook, pandas, NumPy, Parquet, JSON, CSV, XML, Git, Apache Airflow, MySQL, MariaDB, PostgreSQL, Slurm, JIRA, Confluence
1w
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Staff .Net Engineer
Philadelphia, Pennsylvania, United States
HybridFull Time
8+ YOERequires 8+ years of software engineering experience, full-stack development, C#, TypeScript, .NET, front-end frameworks, distributed systems, APIs, databases, technical strategy, and CI/CD expertise.
C#, TypeScript, .NET Framework, .NET 5+, Angular, React, Vue, AWS, Azure, Python, HL7, FHIR, EHR, HIPAA, SOC2, CI/CD
1mo
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Senior React Software Engineer (contract)
Baltimore, Maryland, United States
$65-$75/hr RemoteContract
4+ YOEU.S. citizen required. 4+ years front-end experience with React and JavaScript/TypeScript. Experience with reusable component libraries, client-side state, accessibility, responsive design, testing, CI/CD, and strong communication skills.
React, TypeScript, JavaScript, HTML, CSS, CI/CD, Git
3mo
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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
3w
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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
1w
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Lead Engineer | Onsite - Delaware
Wilmington or Delaware
$56k-$196k/yr OnsiteFull Time, Contract
Photon: A technology organization developing large-scale web and user-interface platforms.
8+ YOE3+ MgmtRequires 8+ years of front-end engineering and 3+ years as a tech lead, with expert React, Node.js, TypeScript, Webpack, Module Federation, micro-frontends, UI architecture, security, and delivery leadership experience.
React, Node.js, TypeScript, Webpack, Module Federation, Figma, Redux, Context, ARIA, WCAG, OAuth, OIDC, OWASP, Playwright, Sentry, Datadog RUM
3d
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Full-Stack Engineer
Philadelphia, Pennsylvania, United States
HybridFull Time
6+ YOE6+ years designing, developing, and maintaining applications on the Microsoft Stack or Java; REST APIs, databases, front-end frameworks, AI development, Git, integrations, scalability, and technical communication.
Microsoft Stack, Java, RESTful APIs, Swagger, OpenAPI, SQL Server, NoSQL, Azure, AWS, GCP, JavaScript, TypeScript, HTML, CSS, Angular, React, Vue, Bootstrap, Claude code, CodeX, Opencode, OpenClaude, Git
1mo
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DevSecOps Engineer
Baltimore, Maryland, United States
RemoteFull Time
5+ YOE5+ years full‑stack DevSecOps experience with Java/Spring, front-end (React/Angular), CI/CD, containers, AWS, automated testing, and ability to obtain Public Trust clearance.
Java, Spring Boot, JEE, REST/JSON APIs, React, Angular, JavaScript, TypeScript, AWS, Jenkins, Concourse, Git, GitHub, Docker, Kubernetes, Selenium, Cucumber, TDD, BDD, Hadoop, Spark, Hive, Cassandra, Tomcat, AWS Lambda, Kotlin, Scala, Prometheus