{"schemaVersion":"jobsearcher.job.v1","id":"0b57c4bea874f66801f622cf","url":"https://jobsearcher.com/jobs/0b57c4bea874f66801f622cf","canonicalUrl":"https://jobsearcher.com/jobs/0b57c4bea874f66801f622cf","title":"Senior Front-End Developer (React Native/React)","description":"CSI Companies is seeking an experienced Senior React Native Developer to support the next version of an enterprise design system component library. This role focuses on building and maintaining high quality mobile and web applications using React Native, ReactJS, TypeScript, and modern front end architecture practices.This opportunity is ideal for a senior developer who has strong experience with component libraries, design systems, scalable application architecture, and backend integrations. The ideal candidate will be comfortable collaborating across product, design, QA, backend, and engineering teams to deliver reliable consumer facing solutions.You will help extend and improve a design system component library while supporting mobile and web application development across iOS, Android, and web platforms.Hours: Standard business hoursLocation: RemotePay: Competitive rate based on experience, education, and credentialsPosition Type: ConsultantWork AuthorizationCandidates must be authorized to work in the United States and eligible for W2 employment. No sponsorship and no corp to corp arrangements are available.What you will do• Build and maintain high quality web and mobile applications with a strong focus on performance, usability, and reliability• Update and extend design system component libraries for future platform releases• Develop React Native applications using TypeScript• Support ReactJS development for web based user interfaces• Ensure cross browser compatibility, mobile responsiveness, and platform consistency• Write clean, concise, and well documented code• Contribute to scalable and maintainable application architectures across mobile and web platforms• Partner with backend developers to define API contracts, data models, and integration strategies• Build applications that consume RESTful JSON APIs• Perform and lead code reviews to maintain development standards• Coordinate releases with other development teams and squads• Collaborate with developers, product managers, QA, and UX/UI teams to deliver high quality solutions• Manage timelines, expectations, and technical deliverables effectively• Optimize React Native applications for iOS and Android performance, offline storage, threading, and responsivenessWhat we are looking for• 5 or more years of web and mobile application development experience• 3 or more years of experience with React Native and ReactJS• Strong experience developing React Native applications using TypeScript• Proficiency in responsive design and modern UI development• Familiarity with accessibility standards and design systems• Experience developing component libraries and reusable UI frameworks• Experience building applications that consume RESTful JSON APIs• Experience working with distributed development teams in Agile environments• Strong understanding of React Native optimization techniques for iOS and Android• Experience with application architecture, state management, and backend integrations• Strong communication, collaboration, and problem solving skillsNice to have• Experience with Redux or similar state management frameworks• Experience developing RESTful APIs• Experience with Git and modern source control practices• Experience with React Native Web• Experience with AI assisted development tools• Experience contributing to monorepos, shared component libraries, or enterprise design systems• Experience leading or mentoring development teams• Knowledge of C#• Healthcare, Epic, or other EHR experience• Experience supporting large scale consumer facing applicationsWho Should ApplyThis role is ideal for a senior React Native developer who enjoys building reusable component libraries, improving design systems, creating scalable user experiences, and collaborating across teams to deliver high quality mobile and web solutions.About UsThe CSI Companies is a leading staffing and recruiting firm providing organizations with highly skilled professionals since 1994. We have been recognized as a Best of Staffing award winner for over a decade and pride ourselves on delivering exceptional talent nationwide.Benefits Offered• Weekly pay• Medical dental and vision coverage• Voluntary life and AD and D coverage• Paid training• Opportunity for advancement upon performance and availability","company":"Csi Companies","rawCompany":"csi companies","city":"Denver","state":"CO","isRemote":false,"isActive":false,"createdAt":"2026-10-07T11:37:10.639Z","occupations":[{"code":"15-1252.00","title":"Software Developers","slug":"software-developers"},{"code":"15-1254.00","title":"Web Developers","slug":"web-developers"},{"code":"15-1255.00","title":"Web and Digital Interface Designers","slug":"web-and-digital-interface-designers"}],"industries":[{"code":"541511","title":"Custom Computer Programming Services","slug":"custom-computer-programming-services"},{"code":"541512","title":"Computer Systems Design Services","slug":"computer-systems-design-services"},{"code":"513210","title":"Software Publishers","slug":"software-publishers"}],"jobPosting":{"@context":"https://schema.org","@type":"JobPosting","title":"Senior Front-End Developer (React Native/React)","description":"CSI Companies is seeking an experienced Senior React Native Developer to support the next version of an enterprise design system component library. This role focuses on building and maintaining high quality mobile and web applications using React Native, ReactJS, TypeScript, and modern front end architecture practices.This opportunity is ideal for a senior developer who has strong experience with component libraries, design systems, scalable application architecture, and backend integrations. The ideal candidate will be comfortable collaborating across product, design, QA, backend, and engineering teams to deliver reliable consumer facing solutions.You will help extend and improve a design system component library while supporting mobile and web application development across iOS, Android, and web platforms.Hours: Standard business hoursLocation: RemotePay: Competitive rate based on experience, education, and credentialsPosition Type: ConsultantWork AuthorizationCandidates must be authorized to work in the United States and eligible for W2 employment. No sponsorship and no corp to corp arrangements are available.What you will do• Build and maintain high quality web and mobile applications with a strong focus on performance, usability, and reliability• Update and extend design system component libraries for future platform releases• Develop React Native applications using TypeScript• Support ReactJS development for web based user interfaces• Ensure cross browser compatibility, mobile responsiveness, and platform consistency• Write clean, concise, and well documented code• Contribute to scalable and maintainable application architectures across mobile and web platforms• Partner with backend developers to define API contracts, data models, and integration strategies• Build applications that consume RESTful JSON APIs• Perform and lead code reviews to maintain development standards• Coordinate releases with other development teams and squads• Collaborate with developers, product managers, QA, and UX/UI teams to deliver high quality solutions• Manage timelines, expectations, and technical deliverables effectively• Optimize React Native applications for iOS and Android performance, offline storage, threading, and responsivenessWhat we are looking for• 5 or more years of web and mobile application development experience• 3 or more years of experience with React Native and ReactJS• Strong experience developing React Native applications using TypeScript• Proficiency in responsive design and modern UI development• Familiarity with accessibility standards and design systems• Experience developing component libraries and reusable UI frameworks• Experience building applications that consume RESTful JSON APIs• Experience working with distributed development teams in Agile environments• Strong understanding of React Native optimization techniques for iOS and Android• Experience with application architecture, state management, and backend integrations• Strong communication, collaboration, and problem solving skillsNice to have• Experience with Redux or similar state management frameworks• Experience developing RESTful APIs• Experience with Git and modern source control practices• Experience with React Native Web• Experience with AI assisted development tools• Experience contributing to monorepos, shared component libraries, or enterprise design systems• Experience leading or mentoring development teams• Knowledge of C#• Healthcare, Epic, or other EHR experience• Experience supporting large scale consumer facing applicationsWho Should ApplyThis role is ideal for a senior React Native developer who enjoys building reusable component libraries, improving design systems, creating scalable user experiences, and collaborating across teams to deliver high quality mobile and web solutions.About UsThe CSI Companies is a leading staffing and recruiting firm providing organizations with highly skilled professionals since 1994. We have been recognized as a Best of Staffing award winner for over a decade and pride ourselves on delivering exceptional talent nationwide.Benefits Offered• Weekly pay• Medical dental and vision coverage• Voluntary life and AD and D coverage• Paid training• Opportunity for advancement upon performance and availability","datePosted":"2026-10-07T11:37:10.639Z","dateModified":"2026-10-07T11:37:10.639Z","hiringOrganization":{"@type":"Organization","name":"Csi Companies","sameAs":"https://jobsearcher.com"},"jobLocation":{"@type":"Place","address":{"@type":"PostalAddress","addressLocality":"Denver","addressRegion":"CO","addressCountry":"US"}},"identifier":{"@type":"PropertyValue","name":"JobSearcher","value":"0b57c4bea874f66801f622cf"},"url":"https://jobsearcher.com/jobs/0b57c4bea874f66801f622cf"}}