{"schemaVersion":"jobsearcher.job.v1","id":"153cde979e43564212b1f470","url":"https://jobsearcher.com/jobs/153cde979e43564212b1f470","canonicalUrl":"https://jobsearcher.com/jobs/153cde979e43564212b1f470","title":"Sr Software Engineer (React,Node)","description":"Job Title: Sr Software Engineer (Node, React)Job Type: Permanent Full TimeLocation: St Louis, Missouri, United StatesDescription: Sr Software Engineer (Node, React)Position Description Systemone is looking for a talented and experienced Full Stack Developer who enjoys building modern, high-impact web applications end-to-end. In this role you’ll work across the stack using React, Node.js, Next.js, NestJS and Postgres to deliver scalable, performant products that directly impact users. You'll have a strong voice in technical decisions, collaborate closely with product and design, and help shape both architecture and engineering culture. If you like ownership, solving real-world problems, and working with a pragmatic, modern tech stack—this is a great fit. This position requires someone who is local to St. Louis, MO and willing to work on-site three days per week.Your future duties and responsibilities • Design, build, and maintain full-stack applications using React, Next.js, Node.js, NestJS, and Postgres • Develop scalable APIs and backend services • Collaborate with product managers and designers to translate requirements into technical solutions • Write clean, maintainable, and well-tested code • Optimize applications for performance, scalability, and reliability • Participate in code reviews and mentor junior engineers • Contribute to architectural decisions and technical strategy • Troubleshoot, debug, and improve existing systemsRequired qualifications to be successful in this role • 5+ years professional experience software engineer experience • Must have strong experience in: • React (modern hooks, state management) • Node.js (API development, backend architecture) • Next.js (SSR/SSG, routing, performance optimization) • Postgres (data modeling, query optimization) • Experience building and deploying production-grade web applications in a cloud environment (AWS strong preferred) • Solid understanding of RESTful APIs and web architecture • Familiarity with version control (Git) and CI/CD workflows • Strong problem-solving and debugging skills • Strong full-stack engineering mindset • Ability to own features from concept to production • Clear and effective communication • Collaboration across cross-functional teams • Attention to detail and code quality • Problem-solving and analytical thinking  Ref: #404-IT Pittsburgh","company":"System One","rawCompany":"system one","city":"St Louis","state":"MO","isRemote":false,"isActive":false,"createdAt":"2026-05-17T17:41:16.457Z","occupations":[{"code":"15-1252.00","title":"Software Developers","slug":"software-developers"},{"code":"15-1299.08","title":"Computer Systems Engineers/Architects","slug":"computer-systems-engineers-architects"},{"code":"15-1254.00","title":"Web Developers","slug":"web-developers"}],"industries":[{"code":"541512","title":"Computer Systems Design Services","slug":"computer-systems-design-services"},{"code":"541511","title":"Custom Computer Programming Services","slug":"custom-computer-programming-services"},{"code":"513210","title":"Software Publishers","slug":"software-publishers"}],"jobPosting":{"@context":"https://schema.org","@type":"JobPosting","title":"Sr Software Engineer (React,Node)","description":"Job Title: Sr Software Engineer (Node, React)Job Type: Permanent Full TimeLocation: St Louis, Missouri, United StatesDescription: Sr Software Engineer (Node, React)Position Description Systemone is looking for a talented and experienced Full Stack Developer who enjoys building modern, high-impact web applications end-to-end. In this role you’ll work across the stack using React, Node.js, Next.js, NestJS and Postgres to deliver scalable, performant products that directly impact users. You'll have a strong voice in technical decisions, collaborate closely with product and design, and help shape both architecture and engineering culture. If you like ownership, solving real-world problems, and working with a pragmatic, modern tech stack—this is a great fit. This position requires someone who is local to St. Louis, MO and willing to work on-site three days per week.Your future duties and responsibilities • Design, build, and maintain full-stack applications using React, Next.js, Node.js, NestJS, and Postgres • Develop scalable APIs and backend services • Collaborate with product managers and designers to translate requirements into technical solutions • Write clean, maintainable, and well-tested code • Optimize applications for performance, scalability, and reliability • Participate in code reviews and mentor junior engineers • Contribute to architectural decisions and technical strategy • Troubleshoot, debug, and improve existing systemsRequired qualifications to be successful in this role • 5+ years professional experience software engineer experience • Must have strong experience in: • React (modern hooks, state management) • Node.js (API development, backend architecture) • Next.js (SSR/SSG, routing, performance optimization) • Postgres (data modeling, query optimization) • Experience building and deploying production-grade web applications in a cloud environment (AWS strong preferred) • Solid understanding of RESTful APIs and web architecture • Familiarity with version control (Git) and CI/CD workflows • Strong problem-solving and debugging skills • Strong full-stack engineering mindset • Ability to own features from concept to production • Clear and effective communication • Collaboration across cross-functional teams • Attention to detail and code quality • Problem-solving and analytical thinking  Ref: #404-IT Pittsburgh","datePosted":"2026-05-17T17:41:16.457Z","dateModified":"2026-05-17T17:41:16.457Z","hiringOrganization":{"@type":"Organization","name":"System One","sameAs":"https://jobsearcher.com"},"jobLocation":{"@type":"Place","address":{"@type":"PostalAddress","addressLocality":"St Louis","addressRegion":"MO","addressCountry":"US"}},"identifier":{"@type":"PropertyValue","name":"JobSearcher","value":"153cde979e43564212b1f470"},"url":"https://jobsearcher.com/jobs/153cde979e43564212b1f470"}}