Frontend Developer (React & Expo)

About the Role

We are looking for a Senior Web Engineer to architect and build the entire web experience using Next.js and

React — a consumer-facing trading app with real-time data, SEO-optimised public pages, and internal admin

tooling. What We’re Looking For

You have built production web applications from zero to launch using Next.js. You are comfortable across the

full web stack — SSR/SSG, real-time WebSocket handling, responsive design, and performance optimization.

Ideally, you have worked on trading platforms, dashboards, or data-rich fintech products. You take ownership of

your codebase, care about developer experience, and can work independently to deliver high-quality, production-ready code. What You’ll Do

• Architect and build the Next.js web platform from scratch — project structure, CI/CD, component library, and design system. • Build real-time, data-intensive interfaces — live price rendering, interactive charting, and responsive

dashboards. • Build SEO-optimised content pages and public-facing discovery surfaces. • Build internal admin and operations tooling — dashboards, data tables, configuration interfaces, and

monitoring views. • Define frontend engineering standards — component architecture, testing strategy, accessibility, and

performance budgets. • Own cross-browser compatibility, Core Web Vitals, and responsive design across devices. • Drive code reviews, mentor team members, and champion best practices across the web team. Must-Have

• 4+ years frontend engineering with React in production; 2+ years with Next.js specifically. • Strong TypeScript skills and experience with SSR, SSG, and incremental static regeneration. • Experience building real-time features with WebSockets in web applications. • Experience with Tailwind CSS or utility-first CSS frameworks. • Experience building both consumer-facing and internal admin/dashboard UIs. • Understanding of SEO best practices — structured data, meta tags, Core Web Vitals.

• Familiarity with CI/CD, CDN deployment, and web performance optimization. Nice-to-Have

• Prior experience building trading platforms, brokerage dashboards, or fintech web apps. • Experience with charting library embeds (TradingView, Lightweight Charts, Highcharts). • Experience building complex admin portals with advanced table views, filters, and real-time updates. • Familiarity with search integration (Typesense, Algolia). • Experience with accessibility standards (WCAG 2.1) and internationalization (i18n). Tech Stack

Framework Next.js 14+, React 18+

Language TypeScript

Styling Tailwind CSS, Headless UI / Radix

Real-time WebSocket, SWR / React Query

Charting Charting library embed, Recharts / D3

Admin TanStack Table, React Hook Form

Deployment Vercel / AWS CloudFront, CDN, Edge functions

Testing Jest, Playwright (E2E), Lighthouse CI

Role: UI Lead

Exp: 8+ Years

CTC: up to 30 LPA

Mode of Interview: 2 rounds onsite + 2 online

Key Responsibilities: 

• Lead the UI team in designing and developing scalable, responsive, and performant user interface components. 
• Define and enforce UI coding standards, best practices, and guidelines. 
• Collaborate with UX designers to translate wireframes and prototypes into high-quality code. 
• Work closely with product managers to understand requirements and translate them into technical solutions. 
• Mentor and coach UI developers, providing guidance and support on technical challenges. 
• Conduct code reviews to ensure code quality, performance, and adherence to design principles. 
• Stay updated with the latest UI trends, technologies, and best practices. 
• Drive innovation and continuous improvement within the UI development process. 

Required Skills and Qualifications: 

• Bachelor’s degree in Computer Science, Engineering, or a related field (or equivalent work experience). 
• Proven experience (>8 years) as a UI developer with expertise in HTML5, CSS3, JavaScript/TypeScript 
• Proven experience in front-end frameworks React (must), Angular(good to have), Vue.js(good to have). 
• Solid understanding of responsive web design, accessibility, and cross-browser compatibility. 
• Experience leading a team of UI developers in an agile environment. 
• Strong problem-solving skills and ability to troubleshoot complex issues. 
• Excellent communication skills with the ability to collaborate effectively with cross-functional teams. 

We are seeking a skilled Next.js Developer with a minimum of 1 year of experience to join our growing team. As a Next.js Developer at Redlio Designs, you will have the opportunity to work on exciting projects for a diverse range of clients, collaborating with a talented team of designers, developers, and project managers.

Responsibilities:

- Develop high-quality, responsive web applications using Next.js framework

- Collaborate with designers to implement user-friendly interfaces

- Optimize application performance and ensure scalability

- Integrate front-end components with back-end services

- Write clean, maintainable code and adhere to coding standards

- Troubleshoot and debug issues to ensure smooth functionality

- Stay up-to-date with industry trends and best practices

Requirements:

- Bachelor's degree in Computer Science, Engineering, or a related field

- Minimum of 1 year of experience working with Next.js framework

- Strong proficiency in JavaScript/TypeScript, HTML5, and CSS3

- Experience with React.js and Redux for state management

- Familiarity with RESTful APIs and GraphQL

- Knowledge of version control systems such as Git

- Excellent problem-solving and communication skills

- Ability to work effectively both independently and as part of a team

Nice to Have:

- Experience with server-side rendering (SSR) and static site generation (SSG)

- Familiarity with agile development methodologies

- Knowledge of SEO best practices

- Experience with testing frameworks such as Jest

- Contributions to open-source projects or a strong GitHub profile

Perks and Benefits:

- Competitive salary based on experience

- Collaborative and inclusive work environment

- Regular team outings and social events

Responsibilities

• Take product ideas from ideation to implementation.
• Collaborate with Product and Design to create robust and usable features.
• Take ownership of the architecture for best performance and usability.
• Lead engineering discussions to ensure the best practices, maintainability and security of the application.
• Participate in design and code reviews.
• Lead and mentor the team of developers, to drive business objectives.

We are looking for

• 4+ years of experience building quality applications.
• Proficient in client-side JS frameworks such as React.js
• Passion for best design and coding practices and a desire to develop new bold ideas.
• Strong customer focus, ownership, and self-drive.
• Experience in planning, designing architecture and leading teams.
• Experience with SaaS products or an early stage startup is a plus.

• Integrate data from various back-end services and databases
• Gather and refine specifications and requirements based on technical needs
• Create and maintain software documentation
• Stay plugged into emerging technologies/industry trends and apply them into operations and activities

What are we looking for in the Ideal Candidate?

• Proficient in creating Web (Responsive) applications using Angular 8+, AngularJS/ React JS, JavaScript, JQuery.
• Experience developing/consuming REST APIs
• Knowledge of multiple back-end languages (e.g. Python) and JavaScript frameworks (e.g. Node.js)
• Familiarity with databases (e.g.MSSQL, MySQL), and UI/UX design
• Hands-on experience with code versioning systems like Git, SVN.
• A clear understanding of client requirements & design specifications
• Aggressive problem diagnosis and creative problem-solving skills
• Ability to work and thrive in a fast-paced environment, learn rapidly, and master diverse web technologies and techniques.

Attributes:

• Team player, Positive Attitude
• Proven ability to work well with others in a fast-paced, iterative product definition and development environment.
• Able to work independently with little direct supervision and take initiative and willing to mentor and solve problems

Note- 1) Only immediate joiners need to apply who can join in max 15 days.
           2) WFH avaialble

job profile:

1. 4 to 6 years of experience in UI Development
2. Proficient understanding of JavaScript libraries and frameworks, specifically ReactJS
3. Proficient understanding of Flux Architecture (Redux)
4. Proficient understanding of React-Bootstrap
5. Proficient understanding of Angular JS
6. Proficient understanding of web markup, including HTML5, CSS3
7. Experience in working on integration with Magento 2 as backend.
8. Basic understanding of server-side CSS pre-processing platforms, such as LESS and SASS
9. Proficient understanding of client-side scripting and JavaScript frameworks, including jQuery
10. Good understanding of asynchronous request handling, partial page updates, and AJAX
11. Proficient understanding of cross-browser compatibility issues and ways to work around them.
12. Proficient understanding of code versioning tools, such as (Git / SVN)
13. Proficient understanding of JavaScript test frameworks like Mocha, Jasmine
14. Proficient understanding of module bundler (webpack)
15. Proficient understanding of JavaScript compiler (babel js)
16. Good understanding of nodejs
17. Proficient understanding of deployment process of client side application

Senior Software Engineer, Frontend

https://www.alivecor.com/">AliveCor, the pioneer of the smartphone EKG, with millions of EKGs from a large and growing user base, seeks a Senior Software Engineer (Front-end Applications) to contribute to the Applications team. You will be an integral member of our engineering team, responsible for developing industry-leading web applications that transform the healthcare industry and affect the way consumers use, engage, and act on their health data.

• Passionate about User Experience.
• Has great verbal and written communication skills to engage directly with your peers.
• Understands and is thoughtful about engineering trade-offs
• Experience building web applications with cross-browser support and RESTful API integrations
• Commitment to delivering results.
• Passionate about continuous improvement.

• B.E in Computer Science or a related discipline, or related practical experience.
• 5-8 years of Frontend development experience with at least 2 years working as a React.js Developer.
• A strong grasp of software engineering and web application development fundamentals, including JavaScript (ES5, ES6), HTML and CSS.
• Aptitude to learn new technologies (e.g. ES.Next).
• Excellent troubleshooting skills.
• Familiarity with RESTful APIs to connect the Front-end applications to backend service
• Bonus points for:
• Publicly available web applications, portfolios, or examples available on a source repository (e.g. GitHub, GitLab, Bitbucket)
• An interest in data visualizations using JavaScript libraries such as D3, Highcharts, and others
• Experience managing front end tooling (e.g. gulp, grunt, webpack, post-CSS, service workers)
• Experience with performance analysis and tuning of web application
• Experience developing back end server APIs and/or server-side rendering

AliveCor is on a mission to define modern healthcare through data, design and disruption. We’ve pioneered the creation of FDA-cleared machine-learning techniques, transformed wearable medtech to put proactive heart care at everyone’s fingertips. Kardia is the most clinically validated mobile EKG technology. AliveCor was named as one of the Top 10 Most Innovative Companies in Health for 2017 by Fast Company as part of the publication’s annual ranking of the world’s Most Innovative Companies. AliveCor was awarded the 2015 Tech Pioneer by the World Economic Forum and one of the 50 Smartest Companies in 2015 by the MIT Technology Review. AliveCor recently announced a collaboration with Mayo Clinic that will result in new machine learning capabilities to unlock previously hidden health indicators in EKG data, potentially improving heart health as well as overall health care for a variety of conditions. AliveCor is a privately held company headquartered in Mountain View, CA.

AliveCor is an equal opportunity employer and will not discriminate against any employee or applicant on the basis of age, colour, disability, gender, national origin, race, religion, sexual orientation, or any other classification protected by federal, state, or local law.

Watch the following video demonstrating our product.

https://www.youtube.com/watch?v=8I9xosgA-Ig">KardiaMobile: How's your heart?
https://www.youtube.com/watch?v=8I9xosgA-Ig

Responsibilities:

• Build customer facing technology product for global customers.
• Own the Product's frontend and backend development, building reusable, testable, and scalable code
• Research, evaluate, analyse and implement technical requirements
• Collaborate with product management teams to define and implement innovative solutions for the product direction, visuals and experience
• Mentor Junior members of the team

Requirements:

• 5+ years of experience building scalable products, distributed applications product/services in JavaScript and one of Angular/React
• Should have sound knowledge and experience in HTML and CSS
• Familiarity with UI layout, and CSS grid system or experience working with Bootstrap or any other CSS frameworks is a must
• Should have worked on the complete UI lifecycle of converting UI/UX designs into prototypes, write reusable modules
• Implement UI development principles to ensure client side scaling and clean and maintainable code that performs well on various performance metrics
• Understanding of multiple delivery platforms, such as Mobile & Web and developing Responsive UI
• Designing Unit Test cases, integrated test cases using Selenium and Protractor
• Strong coding and problem solving skills
• Ability to own end-to-end deliveries, right from requirements till release
• Excellent coding skills and ability to produce high quality, bug free and testable production grade code
• Experience working in an Agile/Scrum development process
• Ability to review code and continuously push for higher standards of development
• Knowledge of both SQL and NoSQL database services and related tools with the expertise to create efficient schemas, preferably MongoDB would be nice to have