{"schemaVersion":"jobsearcher.job.v1","id":"4d663a55dafbe91fcb45960a","url":"https://jobsearcher.com/jobs/4d663a55dafbe91fcb45960a","canonicalUrl":"https://jobsearcher.com/jobs/4d663a55dafbe91fcb45960a","title":"Senior React JS Developer","description":"Sr REACT Js. developer to design, develop and test using React JS technologies which will facilitate application development and implementation from development to QA to productionRole Description:The role will require you to design, develop and test using React JS technologies which will facilitate application development and implementation from development to QA to production. You will work to gain an understanding of the current system infrastructure, security needs, network considerations, methodologies.In this role, you will primarily focus on ReactJS programming, integrate designs and wireframes within the application code, write application interface code with JavaScript, translate wireframes and designs into quality codes, optimize components to work seamlessly across different browsers and devices, develop responsive web-based UI and supporting the ecosystem for the organization.Responsibilities:The Senior React Developer position requires in-depth knowledge of JavaScript, object model, DOM manipulation and event handlers, data structures, algorithms, JSX, Babel, and architectural styles /API’s (REST/RPC) and Agile methodologies for the development of application programs.The Senior Developer will be writing clean, scalable code using ReactJS programming languages, refactor and debug codes, improve existing software, test, and deploy applications and systems. Develop documentation throughout the lifecycle of the development process and provide technical support to the team. Ensure that the technologies are updated with current, stable, and compliant architecture and applications that meet enterprise standards. Collaborate with internal teams to produce software design and architecture Develop, Test and Deploy applications and systems Revise, update, refactor and debug codes Improve existing JAVA applications and systems Proactively monitors and reports performance utilization of assigned technologies. Troubleshoot software and/or hardware issues/failures. Manage problem or escalated tickets and tasks and out of cycle requests from systems/software owners. Determine the best course of action for meeting business needs and provide consultative expertise to customers on how to best use systems. Proactively monitors and identifies broader, more complex issues across multiple, integrated, connecting technologies and communicate as appropriate. Provides technical knowledge and support to District agencies, personnel, and additional stakeholders Performs other related duties as assigned May coordinate activities of application developers. Able to identify best practices and standards for the use of the product. Delivers support and design for industry specific applications that require integration with statewide systems or applications Interacts with executive level business users or technical experts May function as a niche technical SME (Subject Matter Expert)Minimum Education/Certification Requirements:Bachelor’s degree in Information Technology or related field or equivalent experienceThe Skills Profile Required IsSkillRequired / DesiredAmountof ExperienceEnterprise Web Development experienceRequired16YearsExperience in working with React-UI framework (React.js)Required3YearsExperience in working with ReactJS, RXJS, NodeJS, ES6/5Required3YearsExperience in REDUX architectureRequired3YearsExperience in working with HTML5, CSS3, JavaScript, Angular 2.0Required3YearsExperience in developing React Native componentsRequired3YearsExperience in working with JSX (Javascript Syntax Extension)Required3YearsExperience in working with REST APIsRequired3YearsExperience in working with JSON and XMLRequired3YearsExperience to translate Wireframes and designs for developmentRequired3YearsExperience in CSS libraries, Sigma, Adobe XDRequired3YearsExperience with ReactJS workflows like Flux, Redux, Create React App, data structure librariesRequired3YearsExperience with GIT version control repositoryRequired3YearsExperience with Tomcat/Jetty/undertow Application ServersRequired3YearsExperience with LINUX working environmentRequired3YearsRedHat Openshift Container-based application development and deployment experienceRequired3YearsKnowledge of Continuous Integration and Continuous DevelopmentRequired3YearsBachelor''s degree in Computer Science, IT or Engineering or equivalent experience.RequiredMust be able to qualify for a Senior level STaR2 positionRequired11Years","company":"O3 Technology Solutions","rawCompany":"o3 technology solutions","city":"Washington","state":"DC","isRemote":false,"isActive":false,"createdAt":"2026-08-13T12:10:53.421Z","occupations":[{"code":"15-1252.00","title":"Software Developers","slug":"software-developers"},{"code":"15-1254.00","title":"Web Developers","slug":"web-developers"},{"code":"15-1251.00","title":"Computer Programmers","slug":"computer-programmers"}],"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 JS Developer","description":"Sr REACT Js. developer to design, develop and test using React JS technologies which will facilitate application development and implementation from development to QA to productionRole Description:The role will require you to design, develop and test using React JS technologies which will facilitate application development and implementation from development to QA to production. You will work to gain an understanding of the current system infrastructure, security needs, network considerations, methodologies.In this role, you will primarily focus on ReactJS programming, integrate designs and wireframes within the application code, write application interface code with JavaScript, translate wireframes and designs into quality codes, optimize components to work seamlessly across different browsers and devices, develop responsive web-based UI and supporting the ecosystem for the organization.Responsibilities:The Senior React Developer position requires in-depth knowledge of JavaScript, object model, DOM manipulation and event handlers, data structures, algorithms, JSX, Babel, and architectural styles /API’s (REST/RPC) and Agile methodologies for the development of application programs.The Senior Developer will be writing clean, scalable code using ReactJS programming languages, refactor and debug codes, improve existing software, test, and deploy applications and systems. Develop documentation throughout the lifecycle of the development process and provide technical support to the team. Ensure that the technologies are updated with current, stable, and compliant architecture and applications that meet enterprise standards. Collaborate with internal teams to produce software design and architecture Develop, Test and Deploy applications and systems Revise, update, refactor and debug codes Improve existing JAVA applications and systems Proactively monitors and reports performance utilization of assigned technologies. Troubleshoot software and/or hardware issues/failures. Manage problem or escalated tickets and tasks and out of cycle requests from systems/software owners. Determine the best course of action for meeting business needs and provide consultative expertise to customers on how to best use systems. Proactively monitors and identifies broader, more complex issues across multiple, integrated, connecting technologies and communicate as appropriate. Provides technical knowledge and support to District agencies, personnel, and additional stakeholders Performs other related duties as assigned May coordinate activities of application developers. Able to identify best practices and standards for the use of the product. Delivers support and design for industry specific applications that require integration with statewide systems or applications Interacts with executive level business users or technical experts May function as a niche technical SME (Subject Matter Expert)Minimum Education/Certification Requirements:Bachelor’s degree in Information Technology or related field or equivalent experienceThe Skills Profile Required IsSkillRequired / DesiredAmountof ExperienceEnterprise Web Development experienceRequired16YearsExperience in working with React-UI framework (React.js)Required3YearsExperience in working with ReactJS, RXJS, NodeJS, ES6/5Required3YearsExperience in REDUX architectureRequired3YearsExperience in working with HTML5, CSS3, JavaScript, Angular 2.0Required3YearsExperience in developing React Native componentsRequired3YearsExperience in working with JSX (Javascript Syntax Extension)Required3YearsExperience in working with REST APIsRequired3YearsExperience in working with JSON and XMLRequired3YearsExperience to translate Wireframes and designs for developmentRequired3YearsExperience in CSS libraries, Sigma, Adobe XDRequired3YearsExperience with ReactJS workflows like Flux, Redux, Create React App, data structure librariesRequired3YearsExperience with GIT version control repositoryRequired3YearsExperience with Tomcat/Jetty/undertow Application ServersRequired3YearsExperience with LINUX working environmentRequired3YearsRedHat Openshift Container-based application development and deployment experienceRequired3YearsKnowledge of Continuous Integration and Continuous DevelopmentRequired3YearsBachelor''s degree in Computer Science, IT or Engineering or equivalent experience.RequiredMust be able to qualify for a Senior level STaR2 positionRequired11Years","datePosted":"2026-08-13T12:10:53.421Z","dateModified":"2026-08-13T12:10:53.421Z","hiringOrganization":{"@type":"Organization","name":"O3 Technology Solutions","sameAs":"https://jobsearcher.com"},"jobLocation":{"@type":"Place","address":{"@type":"PostalAddress","addressLocality":"Washington","addressRegion":"DC","addressCountry":"US"}},"identifier":{"@type":"PropertyValue","name":"JobSearcher","value":"4d663a55dafbe91fcb45960a"},"url":"https://jobsearcher.com/jobs/4d663a55dafbe91fcb45960a"}}