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166 javascript typescript jobs at 88 companies in Pennsylvania

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Javascript - Senior Developers - AI Training - Philadelphia, USA
Philadelphia, Pennsylvania, United States
$50/hr RemoteContract
Prolific
Prolific: Platform connecting researchers and AI developers with verified participants.
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
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12h
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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
Esri
Esri: Developing software for digital mapping and spatial data analysis.
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
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2mo
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Applied AI Product Engineer (Remote Opportunity)
Philadelphia or San Francisco or Seattle
RemoteFull Time
VetsEZ
VetsEZ: Digital transformation and healthcare IT services for government agencies.
2+ YOE2+ years in software/product engineering; practical AI project delivery; Python/TypeScript/JavaScript; LLMs; cloud; remote work.
Cursor, Claude, Codex, OpenAI, AWS, Azure, Google Cloud Platform, Docker, Kubernetes, PyTorch, TensorFlow, Hugging Face, scikit-learn, Python, TypeScript, JavaScript
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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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1w
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Senior Software Engineer
New York City or Bethlehem or Holmdel
$95k-$156k/yr HybridFull Time
Guardian Life
Guardian Life: Provides life, disability, dental, and vision insurance products.
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
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3mo
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Software Engineer
Pittsburgh, Pennsylvania, United States
$115k-$165k/yr OnsiteFull Time
Gray Swan AI
Gray Swan AI: Provides security and threat detection for AI deployments.
Full-stack engineer with TypeScript/JavaScript, frontend (React/Vue/Svelte), backend APIs (FastAPI), and MongoDB; ability to work across frontend, backend, and data collaboration.
Svelte, FastAPI, MongoDB, TypeScript, JavaScript, React, Vue, SvelteKit, Python
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2mo
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Quality Engineer II
Philadelphia, Pennsylvania, United States
$72k-$119k/yr OnsiteFull Time
RELX
RELXLondon Stock Exchange: REL: Provides information-based analytics and decision tools for professional customers.
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
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3w
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Software Engineer Sr
Strongsville or Pittsburgh or Cleveland or Dallas or Phoenix or Denver or Birmingham
$86k-$158k/yr OnsiteFull Time
PNC Financial Services
PNC Financial ServicesNYSE: PNC: Provides banking, lending, and investment services to customers.
3+ YOE3+ years building Microsoft 365 solutions with SharePoint Online, SPFx, Power Platform, PowerShell, JavaScript/TypeScript, REST/Microsoft Graph, and Git; Bachelor's degree typical.
SharePoint Online, SharePoint Framework (SPFx), Power Platform, PowerShell, JavaScript, TypeScript, REST APIs, Microsoft Graph, JSON, HTML, CSS, Git, Microsoft 365, Power Apps, Power Automate
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3mo
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Software Developer | C# | ETF | Experienced Hire
Bala Cynwyd, Pennsylvania, United States
OnsiteFull Time
Susquehanna International Group
Susquehanna International Group: Global quantitative trading and market making firm.
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
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2mo
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Quality Engineer II
Philadelphia, Pennsylvania, United States
$72k-$119k/yr OnsiteFull Time
Elsevier
ElsevierLondon Stock Exchange: REL: Provides scientific, technical, and medical research information and analytics.
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
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1mo
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Angular Frontend Developer FTE - Pittsburgh, PA & Lakemary, FL (New York, NY, US)
Pittsburgh or Lake Mary or New York City
$70k-$85k/yr OnsiteFull Time
Capgemini
CapgeminiEuronext Paris: CAP: Provides global IT consulting and digital transformation services.
Experience with Angular, TypeScript, JavaScript, HTML, CSS; familiarity with messaging systems (Kafka, MQ), databases (Oracle, PostgreSQL, MySQL), AWS, and Agile; strong communication and testing practices.
Angular, TypeScript, JavaScript, HTML, CSS, Kafka, MQ, Oracle, PostgreSQL, AWS, MySQL
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1w
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Sr. Software Engineer I, Evaluation Services
Chicago or California or Colorado or Florida or Georgia or Illinois or Indiana or Minnesota or Missouri or Montana or New Jersey or New York or North Carolina or Ohio or Oregon or Pennsylvania or South Carolina or Texas or Utah or Vermont or Virginia or Washington or Wisconsin or District of Columbia
$125k-$175k/yr HybridFull Time
NinjaTrader
NinjaTrader: Provides futures brokerage services and a trading software platform.
5+ YOE5+ years software engineering with API development and partner integrations; strong REST/WebSocket/JSON/OAuth skills; proficiency in TypeScript/JavaScript or Python; excellent troubleshooting and communication.
REST APIs, WebSockets, JSON, OAuth, Postman, curl, browser developer tools, network analyzers, TypeScript, JavaScript, Python, React, Node.js, Swagger/OpenAPI, ReadMe
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2w
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Product Engineer (AI) - Operations
Arizona or Colorado or Florida or Idaho or Georgia or Illinois or New Hampshire or Kansas or Massachusetts or Michigan or Minnesota or North Carolina or New York or Ohio or Oregon or Pennsylvania or South Carolina or Tennessee or Texas or Utah or Virginia or Washington or Wisconsin
$150k-$160k/yr RemoteFull Time
MedBridge
MedBridge: Provides healthcare education and patient engagement software solutions.
2+ YOE2+ years software engineering experience, hands-on delivery of AI-powered production applications, LLM integration experience, proficiency with Python/TypeScript/JavaScript, strong product instincts and communication.
Claude, Cursor, Codex, OpenAI, Anthropic, Python, TypeScript, JavaScript, Docker, Kubernetes, AWS, Azure, GCP
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1mo
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Software Development Engineer 3, Nurture
United States or Arizona or Arkansas or California or Colorado or Florida or Georgia or Illinois or Indiana or Iowa or Maryland or Michigan or Minnesota or Missouri or North Carolina or Ohio or Oklahoma or Pennsylvania or South Carolina or Tennessee or Texas or Washington or Virginia
$104k-$115k/yr RemoteFull Time
Pushpay
Pushpay: Digital giving and engagement platform for churches and nonprofits.
Experienced full-stack developer with PHP/CakePHP, JavaScript/TypeScript, Svelte/React, PostgreSQL, API integrations, and familiarity with AWS (EC2, RDS, S3) and multi-tenant system design.
CakePHP, PostgreSQL, SvelteKit, PHP, JavaScript, TypeScript, Svelte, React, Salesforce, Mailchimp, Planning Center, Twilio, AWS, EC2, RDS, S3, OAuth, Cognito, SSO
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3mo
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Software Engineer IV (19819)
Pittsburgh, Pennsylvania, United States
HybridFull Time
Duquesne Light Company
Duquesne Light Company: Provides electric energy transmission and distribution services in Pennsylvania.
5+ YOEBachelor’s degree in computer science or related field; 5+ years of experience; strong C#, JavaScript/TypeScript, .NET, REST, Azure, SQL; experience with enterprise service architectures and CI/CD.
C#, SQL, Javascript, Typescript, .NET, ASP.NET, Angular, REST, Microsoft Azure
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6d
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Application Engineer
Malvern, Pennsylvania, United States
HybridFull Time
Vanguard
Vanguard: Provides mutual funds, ETFs, and investment management services.
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
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1mo
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Future Opportunities: Staff Software Engineer - Fuze Health
United States or Alabama or Arizona or Arkansas or California or Colorado or Connecticut or Florida or Georgia or Hawaii or Idaho or Illinois or Indiana or Iowa or Kansas or Kentucky or Maryland or Massachusetts or Michigan or Minnesota or Missouri or Nevada or New Hampshire or New Jersey or New Mexico or New York or North Carolina or Ohio or Oklahoma or Oregon or Pennsylvania or Rhode Island or South Carolina or Tennessee or Texas or Vermont or Virginia or Washington or Wisconsin
$178k-$223k/yr RemoteFull Time
Fuze Health
Fuze Health: Integrated digital health, home diagnostics, and virtual pharmacy platform.
8+ YOE8+ years software engineering experience with 3+ years as a tech lead/architect; expertise in Ruby on Rails or Python, PostgreSQL, TypeScript/JavaScript, and AWS; bachelor’s in CS or related field (or equivalent).
Ruby on Rails, Python, PostgreSQL, TypeScript, JavaScript, AWS, ECS, RDS, Lambda, VPC, EHR
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2mo
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Software Engineer
Conshohocken, Pennsylvania, United States
HybridFull Time
Novacore
Novacore: Independent specialty insurance provider for niche markets.
2+ YOE2+ years software development experience; C#, Typescript, Python; Azure; CI/CD; GitHub; JIRA; Agile; HTML/CSS; JavaScript; UI/UX; insurance domain experience preferred.
C#, Typescript, Python, HTML, CSS, JavaScript, Azure, GitHub, JIRA, CI/CD, Microsoft stack, UI/UX
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2w
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Software Engineer II - AI Solutions
King of Prussia, Pennsylvania, United States
OnsiteFull Time
Universal Health Services
Universal Health ServicesNYSE: UHS: Operates acute care hospitals and behavioral health facilities.
3+ YOEBachelor's in CS or related, 3+ years AI/ML or backend experience, proficiency in Python/Java/JavaScript/Typescript, ML frameworks, cloud platforms, healthcare standards, and CI/CD/DevOps.
Python, Java, JavaScript, Typescript, Pytorch, Tensorflow, Langchain, Keras, HL7, FHIR, DICOM, HIPAA, GDPR, SQL, NoSQL, AWS, Azure, Google Cloud, Oracle Cloud, Palantir, Databricks, Graphana, Datadog, Langfuse, Docker, Kubernetes, Large Language Models, CI/CD, DevOps
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