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# Web-Mobile Developer

- **Company:** KS DATA SYSTEMS, INC.
- **Location:** Philadelphia, PA, United States
- **Salary:** $75,000 - $105,000
- **Contract:** Permanent contract
- **Skills:** HTML, JavaScript (Programming Language), .NET Framework, Amazon Web Services, Apple IOS, Application Performance Management, Automation of Tests, Microsoft Azure, Browser Compatibility, Cascading Style Sheets (CSS), Mobile Application Development, Software Quality, Code Review, Continuous Integration, Database Theory, Software Debugging, Web Development, PostgreSQL, Microsoft SQL Server, MySQL, Node.Js, Application Data, Next.js, Responsive Web Design, Secure Coding, Software Deployment, Software Engineering, SQL Databases, TypeScript, Software Modules, ReactJS, Git, Information Technology, Enterprise Integration, Front End Software Development, Restful APIs, Software Version Control
- **Published:** October 20, 2026
- **Apply:** https://www.indeed.com/viewjob?jk=910ce3da43114ef3

## About the Role

* Experience developing web applications or mobile-focused software.
 * Proficiency in JavaScript or TypeScript, HTML, and CSS.
 * Familiarity with a modern frontend framework such as React or Next.js.
 * Understanding of REST APIs, backend integration, and database concepts.
 * Knowledge of responsive design and cross-browser compatibility.
 * Familiarity with Git or another version control system.
 * Strong debugging, analytical, and problem-solving skills.
 * Ability to communicate technical concepts and collaborate with a development team., * Bachelor's degree in Computer Science, Software Engineering, Information Technology, or equivalent practical experience.
 * Experience with mobile application development for iOS or Android, or cross-platform frameworks.
 * Familiarity with Node.js, Express, .NET, or comparable backend technologies.
 * Experience with SQL databases such as PostgreSQL, MySQL, or SQL Server.
 * Exposure to cloud platforms such as AWS or Microsoft Azure.
 * Understanding of automated testing, CI/CD pipelines, and application deployment.
 * A portfolio of web, mobile, or full-stack development projects.

## Description

* Develop and maintain responsive web applications and mobile-friendly interfaces.
 * Build user interfaces using JavaScript, TypeScript, React, or other appropriate web technologies.
 * Develop and integrate backend services, APIs, and database-driven application features.
 * Create and maintain reusable components and application modules.
 * Implement responsive layouts and ensure compatibility across browsers and screen sizes.
 * Collaborate with designers, project stakeholders, and other developers to translate requirements into technical solutions.
 * Integrate third-party APIs, authentication services, and external data sources.
 * Test application functionality, identify defects, and resolve performance issues.
 * Apply secure coding practices and help protect application data.
 * Maintain code quality through version control, code reviews, and technical documentation.
 * Support application deployment, maintenance, and troubleshooting.
 * Contribute to improving application performance, usability, accessibility, and reliability.