Frontend Engineer (React / VanillaJS)
ConfidentialGuwahati, India5 days ago
Job descriptionStart Date : Immediate Initial Term : 10 months (August 2026) with the possibility of extension Location : Fully remote Working Hours : 8h / day, availability required during UK business hours Implementing interactive dashboards and visualisations from structured JSON data Delivering responsive and accessible UI components using React Collaborating closely with backend engineers to define and consume APIs Optimising rendering performance for large data sets Establishing reusable component patterns aligned with the existing design system 4–5 years of professional experience developing complex web applications Expert in React and modern JavaScript (ES6+) Proven experience consuming and managing structured API data (REST / JSON) Strong understanding of state management (Redux, Context API, or similar) Knowledge of modular component design, accessibility, and responsive layouts Awareness of frontend performance optimisation techniques Experience with Git, CI / CD pipelines, and agile development environments Familiarity with frontend testing frameworks (Jest, React Testing Library, Cypress) Fluent technical English and excellent communication skills Experience working in cross-functional, remote teams (Product, Design, QA) Comfortable operating in SCRUM / agile delivery models Demonstrated ability to iterate quickly and respond to product feedback Experience with TypeScript Familiarity with data visualisation libraries (e.g., D3.js, Recharts, Highcharts) Exposure to GraphQL APIs Understanding of design systems and component libraries Experience in SaaS or analytics platforms Collaborative and proactive communicator Strong ownership of user experience and visual quality Pragmatic, detail-oriented, and delivery-focused Thrives in environments with rapid iteration and feedback User-first mindset with appreciation for clean design and performance Build responsive, accessible, and performant UI components using React Translate JSON API responses into dynamic data tables and visualisations Collaborate with backend engineers on API integration and data validation Work closely with Product and Design to ensure consistent UX patterns Optimise rendering and state management for large or complex datasets Participate in sprint ceremonies (stand-ups, planning, reviews, retrospectives) Contribute to frontend architecture and best practices Within 4–6 weeks : Fully onboarded, contributing to core frontend features Within 3–6 months : Own key feature areas, delivering reusable, high-quality components Consistently deliver performant, accessible, and visually polished UI Collaborate effectively with the wider engineering and product team Methodology : SCRUM Team Size : Product, Design, QA, Frontend and Backend Engineers Tooling : Jira, Slack, GitHub, Google Workspace Ceremonies : Daily stand-ups, sprint planning, backlog grooming, demos, retrospectives Equipment : Mac laptop required (Jamf managed) Onboarding : 4-week structured onboarding plan with HR and manager Compliance : Confidentiality agreement + security training (with ongoing monthly modules) CV Review – Check for experience on paper Launch Lab technical screening (30 mins) - Core React / JS fundamentals Launch Lab collaborative assessment (1 hr) Final interview (culture fit + technical interview incl. system design, product interaction, 2-2.5 hrs) Step 1 : Click On Apply! And Register or Login on our portal. Step 2 : Complete the Screening Form & Upload updated Resume Step 3 : Increase your chances to get shortlisted & meet the client for the Interview!
Experience : 4.00 + years
Salary : Confidential (based on experience)
Expected Notice Period : 15 Days
Shift : (GMT+05 : 30) Asia / Kolkata (IST)
Opportunity Type : Remote
Placement Type : Full Time Contract for 12 Months(40 hrs a week / 160 hrs a month)
- Note : This is a requirement for one of Uplers' client - LL)
What do you need for this opportunity
Must have skills required :
analytics platforms, Component Library, Experience with Saas, GraphQL, CI / CD Pipeline, frontend testing framework, JavaScript ES6+, REST / JSON, React Js, Redux, TypeScript
LL is Looking for :
Role : Frontend Engineer (React / VanillaJS)
Overview :
Launch Lab is supporting a global leader in human performance and healthcare analytics. This role offers an opportunity to join the product engineering group responsible for building rich, data-driven web applications used by elite organisations worldwide. You'll contribute to a brand-new greenfield project delivering performant, engaging interfaces that visualise complex datasets in intuitive and accessible ways.
Engagement Details :
About the Project :
The frontend engineer will build and evolve a new reporting and analytics interface. Key areas of focus include :
The project is greenfield, with established engineering practices, mature product and design input, and strong support from QA and delivery functions.
Must-Have Experience & Skills
Technical
Business & Delivery
Nice-to-Have Skills
Soft Skills
Responsibilities
Success Criteria :
Working Practices :
Additional Information :
Assessment Process :
How to apply for this opportunity
About Uplers :
Our goal is to make hiring reliable, simple, and fast. Our role will be to help all our talents find and apply for relevant contractual onsite opportunities and progress in their career. We will support any grievances or challenges you may face during the engagement.
(Note : There are many more opportunities apart from this on the portal. Depending on the assessments you clear, you can apply for them as well).
So, if you are ready for a new challenge, a great work environment, and an opportunity to take your career to the next level, don't hesitate to apply today. We are waiting for you!
Skills Required
React, Git, Typescript, Rest, Graphql, Redux, Json
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Frontend Engineer • Guwahati, India
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