48 react js developer jobs at 16 companies in Slatington, PA
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
2mo
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Staff Software Engineer - Level 4
King of Prussia, Pennsylvania, United States
$114k-$227k/yr OnsiteFull Time
US citizen able to obtain TS/SCI clearance; recent full‑stack development experience with JavaScript/Node.js/Java and JS libraries; CI/CD, containerization, cloud, Agile, testing familiarity; bachelor’s degree or equivalent.
GitLab, Kubernetes, Docker, Rancher, JavaScript, Node.js, Java, Lit, React, Angular, Git, Git Bash, Helm, AWS, Azure, OpenStack, OpenShift, Jira, Confluence, Spring Boot, Quarkus, HTML, CSS, Playwright, Cucumber, PostgreSQL, MySQL
2w
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Engineer
Malvern, Pennsylvania, United States
$110k-$130k/yr OnsiteFull Time
10+ YOEStrong React, HTML, CSS, JavaScript/TypeScript, GitHub, CI/CD, and automated testing (Playwright); 10+ years experience; bachelor in computer science required.
CSS, HTML, React, JavaScript, TypeScript, GitHub, CI/CD, Playwright
3d
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Senior Software Engineer
Malvern, Pennsylvania, United States
HybridFull Time
6+ YOERequires 6–9 years developing web applications, 3+ years with Ruby, Linux, APIs, databases, testing, and security protocols. Preferred experience includes cloud, containers, DevOps, Jenkins, React, AWS, Redis, and JIRA.
Linux, Git, Ruby, JavaScript, JSON, XML, OpenAPI, SFTP, FTP, OAuth2, OIDC, SSL, SSH, LDAP, Ruby on Rails, Python, REST, GraphQL, SQL, NoSQL, PostgreSQL, Jenkins, Node.js, React, Rust, AWS, RabbitMQ, Kafka, Redis, JIRA, Kubernetes
2mo
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Lead Software Engineer
Bethlehem or Holmdel
$99k-$163k/yr HybridFull Time
10+ YOE3+ Mgmt10+ years software development (3+ years lead); expertise in C#, .NET Core, React/Next.js, APIs/REST, SQL, AWS, CI/CD, Docker/ECS/EKS, Git/BitBucket/GitHub, Splunk, AppDynamics; microservices and Agile experience.
React, Next.js, C#, .NET Core, JavaScript, HTML5, CSS, REST, WCF, SOAP, SQL, Splunk, AppDynamics, JSON, XML, BitBucket, GitHub, CI/CD, AWS, ECS, Docker, EKS, Kanban, Scrum, Scaled Agile
1mo
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Senior Developer / Lead Developer
Allentown or Providence or Louisville
HybridFull Time
5+ YOEBachelor's degree, 5+ years software development experience (senior) or 7+ (lead); proficiency in C#, Java, TypeScript, frontend frameworks, APIs and SQL; experience with cloud, microservices, and emerging tech.
C#, Java, TypeScript, JavaScript, Python, Angular, React, SQL, Microservices, Cloud Architecture, APIs, SAP ABAP, SAP S/4HANA, Kubernetes, Azure Kubernetes Service (AKS), DevOps, RPA, Artificial Intelligence
1w
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SharePoint Developer
Bethlehem, Pennsylvania, United States
OnsiteFull Time
5+ YOE5+ years developing SharePoint Online/Microsoft 365 solutions, experience with SPFx, Power Platform, Dataverse, PowerShell, and stakeholder requirement gathering.
SharePoint Online, SharePoint Framework (SPFx), Power Automate, Power Apps, Dataverse, Microsoft 365, Microsoft Entra ID, PowerShell, Microsoft Purview, JavaScript, TypeScript, React
2w
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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
4d
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Software Engineer
King of Prussia or Aurora
$69k-$142k/yr HybridFull Time
3+ YOEBachelor's degree in computer science or related field plus 3 years of software development experience, or equivalent. Requires modern programming, Git, Agile, RESTful API, web development, and willingness to obtain TS/SCI clearance.
Python, Java, Spring Boot, React, AWS, Azure, Kubernetes, JavaScript, TypeScript, C#, Git, RESTful APIs, Docker, PostgreSQL, MySQL, Jenkins, GitLab CI, GitHub Actions
5d
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Software Engineer - AI Development
Rahway or North Wales or West Point
$87k-$137k/yr HybridFull Time
Bachelor's degree in computer science, software engineering, information technology, or related field; software development fundamentals; problem-solving, collaboration, and technical communication skills.
Amazon Web Services (AWS), React, Python, Databricks, Microsoft Power Platform, GitHub, Microsoft SharePoint, JavaScript, TypeScript, Microsoft Azure
4d
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Software Engineer
King of Prussia or Aurora
$69k-$142k/yr HybridFull Time
3+ YOEBachelor's degree in computer science or related field plus 3 years of software development, or equivalent; proficiency in a modern language, Git, RESTful APIs, Agile/Scrum, and eligibility for TS/SCI clearance.
Python, Java, Spring Boot, React, AWS, Azure, Kubernetes, JavaScript, TypeScript, C#, Git, RESTful APIs, Docker, PostgreSQL, MySQL, Jenkins, GitLab CI, GitHub Actions
1w
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Senior Mobile DevOps Engineer
Malvern, Pennsylvania, United States
HybridFull Time
8+ YOERequires 8+ years of related experience, including 2+ years of development, an undergraduate degree or equivalent, GitHub, GitHub Actions, AWS infrastructure tools, and strong analytical and communication skills.
GitHub, GitHub Actions, Fastlane, AWS, CloudFormation, Terraform, Unix, Linux, macOS, Xcode, Swift, Android Studio, Kotlin, React Native, TypeScript, JavaScript, Firebase, Splunk, Terminal
6d
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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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Senior Mobile DevOps Engineer
Malvern, Pennsylvania, United States
HybridFull Time
8+ YOE8+ years related experience with 2+ years development, undergraduate degree or equivalent (masters preferred), knowledge of GitHub/GitHub Actions/Fastlane, AWS CloudFormation or Terraform, strong communication and problem-solving skills.
Github, Github Actions, Fastlane, CloudFormation, Terraform, AWS, Unix, Linux, MacOS, Terminal, Xcode, Swift, Android Studio, Kotlin, React Native, TypeScript, JavaScript, Firebase, Splunk
15h
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Senior Engineer - Machine Learning
Ambler or New York City
HybridFull Time
6+ YOERequires 6+ years of Python-focused software development, traditional ML and generative AI systems, AI agents, evaluation harnesses, cloud infrastructure, MLOps, unstructured data, Agile, and CI/CD; bachelor's preferred.
Python, React, JavaScript, MLOps, CI/CD, Agile, Berkie
1w
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E-Commerce Back-End Developer
Easton, Pennsylvania, United States
OnsiteFull Time
3+ YOE3+ years back-end e-commerce development with PHP and Magento 2/Adobe Commerce, strong MySQL, API and integration experience, Composer/Docker/Git familiarity, and production troubleshooting skills.
Magento 2/Adobe Commerce, PHP, MySQL, GraphQL, REST APIs, Composer, Docker, Git, JavaScript, XML, NetSuite, Celigo, Redis, Varnish, OpenSearch/Elasticsearch, AWS, GCP, React, Next.js, PWA Studio, Hyva
5d
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Software Engineer - AI Development
Rahway or North Wales or West Point
$87k-$137k/yr HybridFull Time
Bachelor's degree in a related field or equivalent experience; software fundamentals, programming, testing, debugging, version control, problem solving, collaboration, and technical communication required.
Amazon Web Services (AWS), React, Python, Databricks, Microsoft Power Platform, GitHub, Microsoft SharePoint, JavaScript, TypeScript, Microsoft Azure
1d
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Senior Software Engineer
Conshohocken, Pennsylvania, United States
HybridFull Time
5+ YOEBachelor's degree in computer science, engineering, or related field; 5 years building software; 2 years AWS architecture; JavaScript, TypeScript, SQL, APIs, event-driven systems, and technical leadership.
Electronic Data Interchange (EDI), API, AWS, JavaScript, React, Node.js, Express, React Native, TypeScript, AWS Cloud Development Kit (CDK), Terraform, AWS Lambda, Amazon ECS, AWS Fargate, Amazon Aurora PostgreSQL, SQL, JSONB
2w
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Quality Assurance Engineering - Sr Professional II
King of Prussia or Alpharetta or Jacksonville
OnsiteFull Time
3+ YOE3+ years SDET/test automation experience; build end-to-end, API, regression, and performance tests; proficiency with JavaScript/TypeScript, API testing, CI/CD, Docker/Kubernetes; strong communication and critical thinking.
Docker, Kubernetes, GitLab, Cypress, Playwright, JMeter, Gatling, Postman, JavaScript, TypeScript, Selenium, React, Go, Jira, Confluence
1w
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Software Development Specialist IV
Conshohocken or Houston or Philadelphia or New York City
$100k-$140k/yr HybridFull Time
6+ YOEBA/BS +6 years (or equivalent), strong Power Platform and automation experience, database and ETL fundamentals, client-facing communication, US citizenship required; no sponsorship available.
Power Platform, Canvas Power Apps, Model-Driven Power Apps, Dataverse, Power Automate, Power BI, Power Portals, Microsoft 365, SharePoint, JavaScript, SQL, Azure, Python, C#, HTML5, Node.JS, REACT, Esri ArcGIS, ArcGIS Online, ArcGIS Enterprise, APIs
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