{"id":2036517,"url":"https://alion.io/job/worldline-application-engineer-reactjs-frontend","title":"Application Engineer - ReactJS Frontend","company":{"id":52940,"name":"Worldline","domain":"worldline.com","url":"https://alion.io/company/worldline","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"SuccessFactors","truth_index":null},"role":"Frontend","role_family":"Frontend","seniority":"junior","employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Chennai, India"],"countries":["IN"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":null,"experience_years_min":1,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"JavaScript","optional":false},{"name":"Linux","optional":false},{"name":"React.js","optional":false}],"status":"live","first_seen_at":"2026-10-07T16:13:46Z","employer_posted_date":"2026-10-07","last_verified_at":"2026-10-25T18:47:28Z","board_verified":true,"closed_at":null,"days_open":18,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":18},"description":"Who we are\nWorldline helps businesses of all shapes and sizes to accelerate their growth journey - quickly, simply, and securely. We are the innovators at the heart of the payments technology industry, shaping how the world pays and gets paid. Our technology powers the growth of millions of businesses across 5 continents. And just as we help our customers accelerate their business, we are committed to helping our people accelerate their careers. Together, we shape the evolution.\nThe opportunity\nAs a Software Engineer - ReactJS Frontend Development, you will be instrumental in building robust, secure, and scalable frontend applications that power our payment infrastructure and customer-facing portals. You will collaborate with product, design, and backend teams to deliver high-quality user experiences, while ensuring secure coding practices and reliable performance on Linux-based environments.\nDay-to-day responsibilities\nDevelop and maintain high-quality frontend features using React and modern JavaScript.\nImplement secure coding practices including input validation, authentication, authorization, and secure data handling.\nCollaborate with backend teams to integrate RESTful services and web APIs.\nOptimize applications for performance, accessibility, and responsive design.\nWrite and maintain automated tests (unit/integration) and participate in code reviews.\nEnsure compliance with security standards and participate in security-focused code reviews.\nTroubleshoot environment issues and work with Linux-based deployment pipelines and tooling.\nDocument design decisions, APIs, and frontend components for maintainability.\nWho are we looking for\n1-4 years of professional experience in frontend development with React and JavaScript.\nStrong proficiency in React (hooks, component patterns, state management) and modern JavaScript. \nFamiliarity with Linux operating environments and command-line tooling.\nUnderstanding of secure coding practices for web applications (input validation, authentication, authorization, secure data handling).\nExperience with RESTful APIs and integrating frontend with backend services.\nPerks & Benefits\nShape the evolution\nWe are on an exciting journey towards the next frontiers of payments technology, and we look for big thinkers, people with passion, can-do attitude and a hunger to learn and grow. Here you'll work with ambitious colleagues from around the world, take on unique challenges as a team, and make a real impact on the society. With an empowering culture, strong technology and extensive training opportunities, we help you accelerate your career - wherever you decide to go. Join our global team of 18,000 innovators and shape a tomorrow that is yours to own.\nLearn more about life at Worldline at jobs.worldline.com\nWe are proud to be an Equal Opportunity employer. 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