3mo
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Javascript - Senior Developers - AI Training - Philadelphia, USA
Philadelphia, Pennsylvania, United States
$50/hr RemoteContract
BS/MS/PhD in CS or related, professional experience building scalable web apps with JavaScript/TypeScript, ability to solve LeetCode Medium–Hard, deep knowledge of event loop, closures, prototypal inheritance, async patterns, and strong code quality.
JavaScript (ES6+), TypeScript, React, Node.js, Vue, Angular, Jest, Cypress, Webpack, Vite, GraphQL, RESTful APIs, LeetCode
21h
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Application Developer - JavaScript
St. Louis or Charlotte or Louisville or Minneapolis or Olympia or Philadelphia or Redlands or San Antonio or Vienna
$84k-$141k/yr OnsiteFull Time
2+ YOE2+ years developing web applications with JavaScript; TypeScript preferred. Experience with modern web frameworks, CI/CD, foundational cartography or visualization knowledge, bachelor's degree required.
JavaScript, TypeScript, ArcGIS Maps SDK for JavaScript, ArcGIS Experience Builder, React, Angular, Svelte, Vue, WebGL, CI/CD
2mo
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Applications Engineer (UI)
Hanover, Maryland, United States
OnsiteFull Time
TypeScript/JavaScript, Angular UI development, REST/JSON, CSS; UI leadership; experience with data visualization.
Angular, TypeScript, JavaScript, REST, CSS, Jira, Confluence, AWS, Balsamiq, MongoDB
1w
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Engineer
Malvern, Pennsylvania, United States
$120k-$130k/yr OnsiteFull Time
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
2mo
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Quality Engineer II
Philadelphia, Pennsylvania, United States
$72k-$119k/yr OnsiteFull Time
Design, develop, and maintain automated test frameworks; REST API testing; CI/CD/AWS; JavaScript/TypeScript; Selenium or Playwright; TDD; accessibility; performance/load testing.
Selenium, Playwright, JavaScript, TypeScript, RESTful API testing, CI/CD, AWS, Jenkins, GitHub Actions, BrowserStack, Axe, Pa11y, WAVE, K6, Locust, JMeter
3mo
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Software Developer | C# | ETF | Experienced Hire
Bala Cynwyd, Pennsylvania, United States
OnsiteFull Time
3+ YOE3+ years software development; BS or MS in Computer Science, Computer Engineering or similar; proficient in Python and JavaScript/TypeScript; experience with C++ and React; visa sponsorship available.
Python, JavaScript, TypeScript, C++, React, Linux
2mo
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Quality Engineer II
Philadelphia, Pennsylvania, United States
$72k-$119k/yr OnsiteFull Time
Design, develop, and maintain automated test frameworks using Selenium or Playwright; RESTful API testing; CI/CD/AWS; TDD; accessibility and performance testing; JavaScript/TypeScript.
Selenium, Playwright, JavaScript, TypeScript, REST API testing, CI/CD, AWS, Jenkins, GitHub Actions, BrowserStack, Axe, Pa11y, WAVE, K6, Locust, JMeter
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
6d
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Application Engineer
Malvern, Pennsylvania, United States
HybridFull Time
2+ YOE2+ years development experience; proficiency with Node.js, Angular, NestJS, TypeScript, JavaScript, AWS CLI; experience with REST/GraphQL, testing frameworks, observability, and Agile practices; undergraduate degree or equivalent.
Node.js, Angular, NestJS, TypeScript, JavaScript, AWS CLI, ECS, EKS, Lambda, REST, GraphQL, Cypress, Jest, Stryker Mutator, Honeycomb, HTML5, CSS3
4w
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Senior AI Engineer
United States or Wilmington
$126k-$197k/yr RemoteFull Time
8+ YOEDegree in Computer Science/Engineering, 8+ years backend development with Python and JavaScript, 2+ years production GenAI systems experience, React/TypeScript UI skills, Pydantic proficiency, strong stakeholder communication.
Python, JavaScript, React.js, TypeScript, HTML, Pydantic, PyTorch, Azure, Azure Kubernetes, Office 365, GitHub
1d
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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
3w
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Senior Full Stack Engineer
Broomall or United States
$150k-$175k/yr RemoteFull Time
7+ YOE7+ years professional software development experience with strong hands-on C#/.NET Framework and SQL Server; experience with Angular, TypeScript/JavaScript, Azure, CI/CD tools; strong communication and problem-solving skills.
C#, .NET Framework, .NET Core, ASP.NET Web Forms, Angular, TypeScript, JavaScript, SQL Server, Azure, Jenkins, Terraform, Terragrunt, HTML, CSS
1mo
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Senior AEM Developer
Philadelphia, Pennsylvania, United States
$125k-$135k/yr OnsiteFull Time
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
2w
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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
2w
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Bioinformatics Engineer (Hybrid)
Baltimore, Maryland, United States
$95k-$125k/yr HybridFull Time
Bachelor's degree required. Experience in software/infrastructure engineering for bioinformatics; Nextflow/Cromwell/CWL, cloud-native AWS, Terraform/AWS CDK, Python/JavaScript/TypeScript/R, RESTful APIs, Git, CI/CD; strong communication.
Nextflow, Cromwell, CWL, AWS, Terraform, AWS CDK, Python, JavaScript, TypeScript, R, JSON, RESTful APIs, Git, CI/CD, LIMS
4h
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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
4w
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Applied AI Product Engineer (Remote Opportunity)
Philadelphia or Salt Lake City
RemoteFull Time
2+ YOEBachelor's in a technical field, 2+ years software/product engineering, production AI project experience (Cursor/Claude/Codex/OpenAI/Anthropic), proficiency in Python/TypeScript/JavaScript, LLM integration, cloud (AWS/Azure/GCP), Docker, Kubernetes.
Cursor, Claude, Codex, OpenAI, OpenAI APIs, Anthropic, Python, TypeScript, JavaScript, LLM, RAG, vector databases, AWS, Azure, Google Cloud Platform, Docker, Kubernetes, PyTorch, TensorFlow, Hugging Face, scikit-learn, CI/CD
2w
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Full Stack Software Engineer
Baltimore or Washington
HybridFull Time
5+ YOE5+ years software engineering experience; strong Java and JavaScript/TypeScript skills; experience with REST, XML/JSON, SQL databases, CI/CD, Git workflows, and secure/messaging systems; active US citizenship and Secret clearance required.
Java, JavaScript, TypeScript, MySQL, PostgreSQL, SQL Server, Oracle, Linux, Windows, Jira, Confluence, GitHub, GitLab, Bitbucket, Git, Apache Camel, Mule, JMS, AMQP, RabbitMQ, ActiveMQ, Artemis, Docker, Kubernetes, SBOM, CI/CD
1mo
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Senior Mobile Engineer
Baltimore, Maryland, United States
$140k-$150k/yr OnsiteFull Time
5+ YOE5+ years professional software engineering; 3+ years building production React Native mobile apps; strong JavaScript and TypeScript skills; iOS and Android experience; REST API integration; state management and CI/CD familiarity; strong communication.
React Native, JavaScript, TypeScript, Redux, Context API, Git, CI/CD, Expo, AWS
1mo
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Senior Lead Software Engineer, Full Stack (Bank Tech)
McLean or Wilmington or Philadelphia
$209k-$262k/yr OnsiteFull Time
6+ YOEBachelor's degree, 6+ years software engineering experience, 1+ year cloud experience (AWS/Azure/GCP); strong full-stack skills (JavaScript/Java/TypeScript/Python/Go), leadership of small teams, and fast onboarding to new codebases.
JavaScript, Java, TypeScript, Python, Go, AWS, Microsoft Azure, Google Cloud, Fargate, Lambda