{"schemaVersion":"jobsearcher.job.v1","id":"eeedabf30bcc7a96c13d22df","url":"https://jobsearcher.com/jobs/eeedabf30bcc7a96c13d22df","canonicalUrl":"https://jobsearcher.com/jobs/eeedabf30bcc7a96c13d22df","title":"Web Application Engineer","description":"Overview:\nFlagger Force, an industry leader in traffic control, is currently hiring a Web Application Engineer. This position will be based out of our corporate campus in Hummelstown, PA.\n\nWe are seeking a talented and passionate Web Application Engineer to join our Engineering Team. The ideal candidate will be a skilled professional with a strong background in building modern, scalable, and high-performance web applications. You will be responsible for designing, developing, and maintaining our web-based applications, with a focus on creating a seamless and engaging user experience. This role requires expertise in ReactJS, a solid understanding of Progressive Web Apps (PWA), and experience working with and troubleshooting .NET-based APIs.\nResponsibilities:\nDesign, develop, and maintain high-quality, reusable, and reliable code for our web applications.\nCollaborate with cross-functional teams, including product managers, designers, and other engineers, to define, design, and ship new features.\nDevelop and implement user interface components using ReactJS and its core principles.\nBuild and maintain Progressive Web Applications (PWAs) to deliver an enhanced user experience across all devices.\nWork closely with other engineers to integrate with and troubleshoot .NET-based and 3rd Party APIs.\nOptimize applications for maximum speed, scalability, and responsiveness.\nWrite and maintain comprehensive documentation for new and existing features.\nParticipate in code reviews to maintain a high level of code quality and consistency.\nStay up-to-date with emerging technologies and industry trends to ensure our applications remain modern and competitive.\nQualifications:\nProven experience as a Web Application Engineer, Front-End Engineer, or similar role.\nStrong proficiency in JavaScript, including DOM manipulation and the JavaScript object model.\nIn-depth knowledge and hands-on experience with ReactJS and its ecosystem.\nFamiliarity with Progressive Web App (PWA) concepts and best practices.\nExperience working with and troubleshooting .NET-based and 3rd-party APIs.\nFamiliarity with modern front-end build pipelines and tools.\nExperience with agile software development methodologies and tools such as Git, Jira, and Confluence.\nA knack for benchmarking and optimization.\nExcellent problem-solving skills and attention to detail.\nStrong communication and collaboration skills.\nExperience with cloud environments such as Azure and Google Cloud as well as datastores based on SQLServer or PostgreSQL is nice to have.\nSteel toed boots or the ability to obtain prior to joining the organization.\n2 + years minimum industry related experience\nPreferred qualifications:\nA Bachelor’s degree in Computer Science preferred\nEducation: High School Diploma","company":"Flagger Force","rawCompany":"flagger force","city":"Hummelstown","state":"PA","isRemote":false,"isActive":false,"createdAt":"2026-04-12T17:14:32.344Z","occupations":[{"code":"15-1254.00","title":"Web Developers","slug":"web-developers"},{"code":"15-1252.00","title":"Software Developers","slug":"software-developers"},{"code":"15-1299.01","title":"Web Administrators","slug":"web-administrators"}],"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":"Web Application Engineer","description":"Overview:\nFlagger Force, an industry leader in traffic control, is currently hiring a Web Application Engineer. This position will be based out of our corporate campus in Hummelstown, PA.\n\nWe are seeking a talented and passionate Web Application Engineer to join our Engineering Team. The ideal candidate will be a skilled professional with a strong background in building modern, scalable, and high-performance web applications. You will be responsible for designing, developing, and maintaining our web-based applications, with a focus on creating a seamless and engaging user experience. This role requires expertise in ReactJS, a solid understanding of Progressive Web Apps (PWA), and experience working with and troubleshooting .NET-based APIs.\nResponsibilities:\nDesign, develop, and maintain high-quality, reusable, and reliable code for our web applications.\nCollaborate with cross-functional teams, including product managers, designers, and other engineers, to define, design, and ship new features.\nDevelop and implement user interface components using ReactJS and its core principles.\nBuild and maintain Progressive Web Applications (PWAs) to deliver an enhanced user experience across all devices.\nWork closely with other engineers to integrate with and troubleshoot .NET-based and 3rd Party APIs.\nOptimize applications for maximum speed, scalability, and responsiveness.\nWrite and maintain comprehensive documentation for new and existing features.\nParticipate in code reviews to maintain a high level of code quality and consistency.\nStay up-to-date with emerging technologies and industry trends to ensure our applications remain modern and competitive.\nQualifications:\nProven experience as a Web Application Engineer, Front-End Engineer, or similar role.\nStrong proficiency in JavaScript, including DOM manipulation and the JavaScript object model.\nIn-depth knowledge and hands-on experience with ReactJS and its ecosystem.\nFamiliarity with Progressive Web App (PWA) concepts and best practices.\nExperience working with and troubleshooting .NET-based and 3rd-party APIs.\nFamiliarity with modern front-end build pipelines and tools.\nExperience with agile software development methodologies and tools such as Git, Jira, and Confluence.\nA knack for benchmarking and optimization.\nExcellent problem-solving skills and attention to detail.\nStrong communication and collaboration skills.\nExperience with cloud environments such as Azure and Google Cloud as well as datastores based on SQLServer or PostgreSQL is nice to have.\nSteel toed boots or the ability to obtain prior to joining the organization.\n2 + years minimum industry related experience\nPreferred qualifications:\nA Bachelor’s degree in Computer Science preferred\nEducation: High School Diploma","datePosted":"2026-04-12T17:14:32.344Z","dateModified":"2026-04-12T17:14:32.344Z","hiringOrganization":{"@type":"Organization","name":"Flagger Force","sameAs":"https://jobsearcher.com"},"jobLocation":{"@type":"Place","address":{"@type":"PostalAddress","addressLocality":"Hummelstown","addressRegion":"PA","addressCountry":"US"}},"identifier":{"@type":"PropertyValue","name":"JobSearcher","value":"eeedabf30bcc7a96c13d22df"},"url":"https://jobsearcher.com/jobs/eeedabf30bcc7a96c13d22df"}}