{"schemaVersion":"jobsearcher.job.v1","id":"85ba02c0b370f1555c89f9fb","url":"https://jobsearcher.com/jobs/85ba02c0b370f1555c89f9fb","canonicalUrl":"https://jobsearcher.com/jobs/85ba02c0b370f1555c89f9fb","title":"Senior React Developer","description":"Tittle: Senior React Developer\r\nLocation : Centennial, Colorado\r\nMode : Hybrid (3days in office — 2 days remote)\r\nDuration : Contract to Hire\r\nYears Of Exp Required : 12+ Years\r\nThis is a hands-on consulting role focused on designing and delivering high-quality, scalable, and performant front-end solutions using React and TypeScript.\r\nThe ideal candidate brings deep front-end engineering expertise, strong architectural instincts, and the\r\nability to collaborate closely with UX, backend engineering, and cross-functional stakeholders to deliver enterprise-grade digital applications.\r\nRoles/Responsibilities\r\nDesign and implement modular, high-quality front-end features using React and TypeScript\r\nEstablish and maintain scalable front-end architecture supporting long-term maintainability and growth\r\nDevelop reusable Node.js modules and shared libraries to drive cross-project consistency\r\nBuild intuitive, accessible user interfaces leveraging Material UI or comparable design systems\r\nIntegrate applications with RESTful and/or GraphQL APIs, optimizing data access and state management\r\nImplement comprehensive UI testing strategies using Jest, Cypress, React Testing Library, or similar tools\r\nOptimize build performance and bundle efficiency through modern tooling such as Webpack and related technologies\r\nEnsure solutions meet enterprise standards for performance, accessibility, and security\r\nPartner with backend engineers to define API contracts and improve data-fetching strategies\r\nTroubleshoot complex UI, caching, and state management challenges\r\nContribute to technical design discussions, conduct code reviews, and mentor junior developers\r\nStay current with evolving front-end trends, frameworks, and best practices\r\nMust Have Technical Skills\r\n10+ years of front-end engineering experience, including significant production experience with React\r\nDeep proficiency in TypeScript with strong understanding of scalable typing patterns and coding standards\r\nExperience implementing enterprise UI design systems such as Material UI or similar frameworks\r\nWorking knowledge of Node.js, including development of shared packages or internal libraries\r\nHands-on experience implementing automated front-end testing strategies\r\nStrong understanding of modern build tooling, module bundling, tree shaking, and performance optimization techniques\r\nExperience with state management libraries such as Redux, Zustand, Recoil, or similar tools\r\nProven ability to improve application performance through lazy loading, code splitting, and bundle optimization\r\nExperience integrating RESTful services and/or GraphQL APIs with efficient data handling strategies\r\nFamiliarity with CI/CD pipelines and release management practices for front-end deployments\r\nStrong analytical and troubleshooting skills in complex client-side environments\r\nEffective communication skills and ability to collaborate across product, design, backend engineering and business teams\r\nExperience with AEM Cloud and SPA Editor\r\nFamiliarity with server-side rendering frameworks such as Next.js\r\nExperience working within micro-frontend or modular front-end architectures\r\nKnowledge of accessibility standards (WCAG) and advanced front-end performance optimization techniques\r\nPrior consulting or client-facing experience\r\nRequired Skills\r\nAngular\r\nFront End Development\r\nFront-end Architecture\r\nSystem One, and its subsidiaries including Joulé, ALTA IT Services, CM Access, TPGS, and MOUNTAIN, LTD., are leaders in delivering workforce solutions and integrated services across North America. We help clients get work done more efficiently and economically, without compromising quality. System One not only serves as a valued partner for our clients, but we offer eligible full-time employees health and welfare benefits coverage options including medical, dental, vision, spending accounts, life insurance, voluntary plans, as well as participation in a 401(k) plan.\r\nSystem One is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, age, national origin, disability, family care or medical leave status, genetic information, veteran status, marital status, or any other characteristic protected by applicable federal, state, or local law.\r\nJ-18808-Ljbffr","company":"System One","rawCompany":"system one","city":"Centennial","state":"CO","isRemote":false,"isActive":false,"createdAt":"2026-04-09T08:00:04.362Z","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 React Developer","description":"Tittle: Senior React Developer\r\nLocation : Centennial, Colorado\r\nMode : Hybrid (3days in office — 2 days remote)\r\nDuration : Contract to Hire\r\nYears Of Exp Required : 12+ Years\r\nThis is a hands-on consulting role focused on designing and delivering high-quality, scalable, and performant front-end solutions using React and TypeScript.\r\nThe ideal candidate brings deep front-end engineering expertise, strong architectural instincts, and the\r\nability to collaborate closely with UX, backend engineering, and cross-functional stakeholders to deliver enterprise-grade digital applications.\r\nRoles/Responsibilities\r\nDesign and implement modular, high-quality front-end features using React and TypeScript\r\nEstablish and maintain scalable front-end architecture supporting long-term maintainability and growth\r\nDevelop reusable Node.js modules and shared libraries to drive cross-project consistency\r\nBuild intuitive, accessible user interfaces leveraging Material UI or comparable design systems\r\nIntegrate applications with RESTful and/or GraphQL APIs, optimizing data access and state management\r\nImplement comprehensive UI testing strategies using Jest, Cypress, React Testing Library, or similar tools\r\nOptimize build performance and bundle efficiency through modern tooling such as Webpack and related technologies\r\nEnsure solutions meet enterprise standards for performance, accessibility, and security\r\nPartner with backend engineers to define API contracts and improve data-fetching strategies\r\nTroubleshoot complex UI, caching, and state management challenges\r\nContribute to technical design discussions, conduct code reviews, and mentor junior developers\r\nStay current with evolving front-end trends, frameworks, and best practices\r\nMust Have Technical Skills\r\n10+ years of front-end engineering experience, including significant production experience with React\r\nDeep proficiency in TypeScript with strong understanding of scalable typing patterns and coding standards\r\nExperience implementing enterprise UI design systems such as Material UI or similar frameworks\r\nWorking knowledge of Node.js, including development of shared packages or internal libraries\r\nHands-on experience implementing automated front-end testing strategies\r\nStrong understanding of modern build tooling, module bundling, tree shaking, and performance optimization techniques\r\nExperience with state management libraries such as Redux, Zustand, Recoil, or similar tools\r\nProven ability to improve application performance through lazy loading, code splitting, and bundle optimization\r\nExperience integrating RESTful services and/or GraphQL APIs with efficient data handling strategies\r\nFamiliarity with CI/CD pipelines and release management practices for front-end deployments\r\nStrong analytical and troubleshooting skills in complex client-side environments\r\nEffective communication skills and ability to collaborate across product, design, backend engineering and business teams\r\nExperience with AEM Cloud and SPA Editor\r\nFamiliarity with server-side rendering frameworks such as Next.js\r\nExperience working within micro-frontend or modular front-end architectures\r\nKnowledge of accessibility standards (WCAG) and advanced front-end performance optimization techniques\r\nPrior consulting or client-facing experience\r\nRequired Skills\r\nAngular\r\nFront End Development\r\nFront-end Architecture\r\nSystem One, and its subsidiaries including Joulé, ALTA IT Services, CM Access, TPGS, and MOUNTAIN, LTD., are leaders in delivering workforce solutions and integrated services across North America. We help clients get work done more efficiently and economically, without compromising quality. System One not only serves as a valued partner for our clients, but we offer eligible full-time employees health and welfare benefits coverage options including medical, dental, vision, spending accounts, life insurance, voluntary plans, as well as participation in a 401(k) plan.\r\nSystem One is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, age, national origin, disability, family care or medical leave status, genetic information, veteran status, marital status, or any other characteristic protected by applicable federal, state, or local law.\r\nJ-18808-Ljbffr","datePosted":"2026-04-09T08:00:04.362Z","dateModified":"2026-04-09T08:00:04.362Z","hiringOrganization":{"@type":"Organization","name":"System One","sameAs":"https://jobsearcher.com"},"jobLocation":{"@type":"Place","address":{"@type":"PostalAddress","addressLocality":"Centennial","addressRegion":"CO","addressCountry":"US"}},"identifier":{"@type":"PropertyValue","name":"JobSearcher","value":"85ba02c0b370f1555c89f9fb"},"url":"https://jobsearcher.com/jobs/85ba02c0b370f1555c89f9fb"}}