Application Engineer - ReactJS Frontend

Worldline is hiring an Application Engineer - ReactJS Frontend in Chennai, India. Level rates it ; you can apply on Worldline.

Level's read on this job

On Level's scale, this role is Little AI ●○○○: aI is not part of the work.
Level classifies it as a junior role.
Level lists 270 other open roles at Worldline.

AI in this role

Who we are

Worldline 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.

The opportunity

As 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.

Day-to-day responsibilities

Develop and maintain high-quality frontend features using React and modern JavaScript.
Implement secure coding practices including input validation, authentication, authorization, and secure data handling.
Collaborate with backend teams to integrate RESTful services and web APIs.
Optimize applications for performance, accessibility, and responsive design.
Write and maintain automated tests (unit/integration) and participate in code reviews.
Ensure compliance with security standards and participate in security-focused code reviews.
Troubleshoot environment issues and work with Linux-based deployment pipelines and tooling.
Document design decisions, APIs, and frontend components for maintainability.

Who are we looking for

1–4 years of professional experience in frontend development with React and JavaScript.
Strong proficiency in React (hooks, component patterns, state management) and modern JavaScript.
Familiarity with Linux operating environments and command-line tooling.
Understanding of secure coding practices for web applications (input validation, authentication, authorization, secure data handling).
Experience with RESTful APIs and integrating frontend with backend services.

Perks & Benefits

Shape the evolution

We 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.

Learn more about life at Worldline at jobs.worldline.com

We are proud to be an Equal Opportunity employer. We do not discriminate based upon race, religion, color, national origin, sex, sexual orientation, gender identity, gender expression, age, status as an individual with a disability, or any applicable legally protected characteristics.

How we rate this

Application Engineer - ReactJS Frontend at Worldline rates 33 out of 100 for how much of the daily work is AI. That makes it Little AI (AI Level 1 of 4). The level is about AI in the job, not seniority.

Classification

Little AI. AI is not part of the work.

●●●● Builds AI80 to 100
●●●○ Works on AI60 to 79
●●○○ Uses AI40 to 59
●○○○ Little AI0 to 39

Levels come from how often the tools, models and workflows of the role are named in the posting itself. Read the description and count the AI tools, models and workflows it names.