{"id":3916117,"url":"https://alion.io/job/osi-engineering-web-developer-javascript-react-2","title":"Web Developer (JavaScript / React)","company":{"id":4458602,"name":"OSI Engineering","domain":"osiengineering.com","url":"https://alion.io/company/osi-engineering","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":null,"truth_index":null},"role":"Frontend","role_family":"Frontend","seniority":null,"employment_type":"contractor","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Menlo Park, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":53,"max":58,"currency":"USD","period":"hour","gross":null,"usd_annual":116000},"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Git","optional":false},{"name":"JavaScript","optional":false},{"name":"React.js","optional":false},{"name":"Rest API","optional":false}],"status":"live","first_seen_at":"2026-11-07T01:10:53Z","employer_posted_date":null,"last_verified_at":"2026-11-07T01:10:53Z","board_verified":false,"closed_at":null,"days_open":0,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":0},"description":"OSI Engineering is seeking a Web Developer to build the front end of a new product catalog and e-commerce system. The role focuses on creating accessible, performant customer-facing experiences and collaborating with Product, Design, and Back-End engineers to integrate front-end code with APIs and services.\n\nResponsibilities\nBuild and maintain the front end of a new catalog and ecommerce system using vanilla JavaScript, HTML, and CSS\nImplement responsive, accessible, cross-browser user interfaces from design specs\nDevelop catalog browsing, search, filtering, product detail, cart, and checkout experiences\nPartner with Product, Design, and Back-End engineers to integrate front-end code with APIs and services\nOptimize for page performance, usability, and SEO\nWrite maintainable, well-tested, well-documented code, and take part in code reviews\nUse AI-assisted development tools to improve productivity, while applying sound engineering judgment to validate results\n\nSkills\nBS in Computer Science, Computer Engineering, or a related field, or equivalent experience\n3+ years of professional web development experience\nStrong proficiency in vanilla JavaScript (ES6+), semantic HTML5, and modern CSS (Flexbox, Grid, responsive design)\nHands-on experience with modern front-end frameworks\nFamiliarity with Git and modern development workflows\nExcellent communication skills and the ability to explain technical concepts to all audiences\nPreferably React\nKnowledge of web accessibility (WCAG), performance optimization, and cross-browser compatibility\nExperience consuming REST APIs and handling asynchronous data (fetch, promises, async/await)\nExperience with ecommerce or catalog-style applications\nExperience with AI-assisted development tools\n\nBenefits\nMenlo Park, CA (onsite 1 day/week)\n\nCompany Overview\nOSI Engineering is a premier Staff Augmentation and Managed Services partner for today's tech leaders and tomorrow's luminaries. It was founded in 2010, and is headquartered in Campbell, California, USA, with a workforce of 201-500 employees. Its website is https://www.osiengineering.com/.\n\nCompany H1B Sponsorship\nOSI Engineering has a track record of offering H1B sponsorships, with 9 in 2026, 13 in 2025, 7 in 2024, 11 in 2023, 5 in 2022, 4 in 2021, 4 in 2020. 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