
Job Title: Sr. Frontend Developer (Javascript)
Location: Remote Only
Experience Required: 4–6 years
Salary Range: 7L – 10L per year
About the Role:
We are looking for an experienced Sr. Frontend Developer with strong expertise in Javascript to join our remote team. The ideal candidate will have 4–6 years of hands-on experience in frontend development, with a focus on building responsive, high-performance web applications. You will work closely with cross-functional teams to design, develop, and implement user-facing features that align with business goals and enhance user experience.
Key Responsibilities:
- Develop and maintain scalable, reusable frontend components and applications using modern Javascript frameworks and libraries.
- Collaborate with UI/UX designers, product managers, and backend developers to deliver seamless user experiences.
- Optimize applications for maximum speed, scalability, and accessibility.
- Write clean, modular, and well-documented code following best practices.
- Participate in code reviews, sprint planning, and agile development processes.
- Troubleshoot, debug, and resolve frontend-related issues.
- Stay updated with emerging frontend technologies and industry trends.
Must-Have Skills:
- Javascript (ES6+)
- React.js
- React Native
- NodeJS (Node.js)
- SQL
Nice-to-Have Skills:
- Experience with state management libraries (Redux, Context API, etc.)
- Familiarity with testing frameworks (Jest, Cypress, React Testing Library)
- Knowledge of frontend build tools (Webpack, Babel, NPM/Yarn)
- Understanding of RESTful APIs and GraphQL
- Experience with version control systems (Git)
- Familiarity with CI/CD pipelines and deployment processes
Qualifications:
- 4–6 years of professional frontend development experience.
- Proven track record of delivering high-quality, production-ready applications.
- Strong understanding of responsive design, cross-browser compatibility, and web performance optimization.
- Excellent problem-solving skills and attention to detail.
- Ability to work independently in a remote environment and communicate effectively with distributed teams.
What We Offer:
- Competitive salary within the range of 7L – 10L per year.
- Fully remote work flexibility.
- Opportunity to work on innovative projects with a talented and supportive team.
- Professional growth and skill development opportunities.

About Appler
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About Company
ADDV HealthTech Solutions, a UK-based company, operates with a strong IT presence in Ahmedabad, empowering IT professionals and organizations with cutting-edge technologies. As a product and service-based industry, we have excelled in managing UK healthcare projects, leveraging our novel tech-led approach.
ADDV HealthTech Solutions operates as a subsidiary of the renowned UK company, ADDVantage Technologies (https://addvantage-technologies.co.uk/) delivering innovative healthcare solutions like AllDayDr, Healthya, AppLocum, PharmSmart, ADDVantage Minds, and HEALTHYA Stations. Under the visionary leadership of our Founder and CEO, Suhel Ahmed, we continue to expand our expertise and presence across the UK and the Middle East.
What are we looking for in a candidate?
● 3-5 years of experience in frontend development.
● Proficient understanding of web markup, including HTML5 and CSS3.
● Basic understanding of server-side CSS pre-processing platforms, such as LESS and SASS
● Proficient understanding of client-side scripting and JavaScript frameworks, including jQuery
● Strong knowledge of JavaScript and its frameworks, such as AngularJS or React.
● Good understanding of asynchronous request handling, partial page updates, and AJAX
● Experience with responsive design and frameworks like Bootstrap.
● Proficient understanding of cross-browser compatibility issues and ways to work around them.
● Basic understanding of React.js and its core principles (optional but preferred).
● Familiarity with version control systems (e.g., Git).
● Excellent problem-solving and communication skills.
What will a candidate be doing with us?
● Develop and maintain user-facing features for web applications.
● Build reusable code and libraries for future use.
● Ensure the technical feasibility of UI/UX designs.
● Optimize applications for maximum speed and scalability.
● Collaborate with other team members and stakeholders.
What will we provide to the candidate?
● 5 days working
● Flexible working hours
● Training and Development Opportunities
● Collaborative work environment
● Working with International teams
Sizzle.gg is an exciting new startup that’s changing the world of gaming. At Sizzle, we’re building AI to automate gaming highlights, directly from Twitch and YouTube streams. We’re looking for a superstar front-end engineer that can work closely with UI/UX designers and continuously improve our site.
You will:
- Work closely with UI/UX designers and the management team to make iterative enhancements to the website, using React, HTML & CSS
- Keep iterating and improving our client video player in React and Meteor.js
- Run numerous A/B tests on the website design, layout, color scheme, button placement, images/videos, and other objects to optimize time on site and conversion
- Create other online assets in similar style, such as HTML emails, ad landing pages, and more
- Work closely with marketing and management team to ensure successful adoption of the app, and make iterative changes to make them more user-friendly
- Work with the rest of the engineering team (back-end engineers, AI engineers) to optimize the user experience across both the site and the apps
You should have the following qualities:
- Must be an expert in React.js, HTML5, HTML, CSS, and related web technologies. Ideally also have expertise in Meteor.js.
- Must have expertise in Bootstrap and have built responsive websites with high polish
- Familiarity with AWS environments
- Excited about working in a fast-changing startup environment
- Have a point of view on designs, usability, and delivering what the user wants
- Willingness to learn rapidly on the job, try different things, and deliver results
- Ideally a gamer or someone interested in watching gaming content online
- Looking for someone in Bangalore or willing to relocate
responsibilities
- Develop User interfaces for Modern Rich Internet Applications with the latest Front End Technologies
- Perform product analysis and development tasks of increasingly complex nature which may require extensive research and analysis.
- Writing tested and documented JavaScript, HTML and CSS
- Make design and technical decisions for AngularJS projects.
- Develop application code and unit test in the AngularJS, Rest Web Services and Java technologies for the Application Development Center.
- Ensuring high performance
requirements
- Strong expertise with HTML, CSS, and writing cross-browser compatible code.
- Good understanding of AJAX and JavaScript Dom manipulation Techniques
- Experience with RESTful services
- Experience in JavaScript build tools like grunt or gulp
- Expert in any one of the modern JavaScript MV-VM/MVC frameworks (AngularJS, JQuery, NodeJS, GruntJS)
- Familiar with testing frameworks (Ex. Jasmine)
- Test runner framework (Ex. Karma)
- Hand on and implements complex AngularJS applications, directives, controllers, services
- Critical thinker and problem-solving skills
- Team player
- Good time-management skills
- Great interpersonal and communication skills
Benefits:
- 5 days working
- Paid Overtime
- Paid Leave
- Employee referral scheme
- Team exposure
- Short term growth
- Playing Zone
- Training sessions for all departments
React.js Developer Job Description
We are looking for a skilled react.js developer to join our front-end development team. In this role, you will be responsible for developing and implementing user interface components using React.js concepts and workflows such as Redux, Flux, and Webpack. You will also be responsible for profiling and improving front-end performance and documenting our front-end codebase.
React.js Developer Responsibilities:
- Meeting with the development team to discuss user interface ideas and applications.
- Reviewing application requirements and interface designs.
- Identifying web-based user interactions.
- Developing and implementing highly responsive user interface components using react concepts.
- Writing application interface codes using JavaScript following react.js workflows.
- Troubleshooting interface software and debugging application codes.
- Developing and implementing front-end architecture to support user interface concepts.
- Monitoring and improving front-end performance.
- Documenting application changes and developing updates.
React.js Developer Requirements:
- Bachelor’s degree in computer science, information technology, or a similar field.
- Previous experience working as a react.js developer.
- In-depth knowledge of JavaScript, CSS, HTML, and front-end languages.
- Knowledge of REACT tools including React.js, Webpack, Enzyme, Redux, and Flux.
- Experience with user interface design.
- Experience with browser-based debugging and performance testing software.
- Excellent troubleshooting skills.
- Good project management skills.
You must be comfortable working as part of a team while taking the initiative to take lead on new innovations and projects.
Qualifications
Proven 4+ experience as a client-side web Developer Knowledge of multiple front-end languages and libraries (e.g. HTML/ CSS, JavaScript, XML, jQuery)
Write well designed, testable, efficient code by using best software development practices
Add-Ons
Expertise in managing translation solutions for website localization.
Past experience in working in Similar Role
Good understanding of Software development
life cycle process Be responsible for maintaining, expanding, and scaling our site
Excellent communication and teamwork skills
Great attention to detail
Organizational skills'
An analytical mind
Degree in Computer Science, Statistics or relevant field
● Design, build and maintain efficient, understandable, reusable, testable, and simple code
with a focus on stability, performance, and scalability.
● Building end-to-end product features from writing backend business logic, API services,
building administration dashboards, and implementing front-end pages/components.
● Being part of cross-team technical initiatives, bringing in new tools and technologies to
improve and optimize the existing platform and code.
● Be a mentor when you have the expertise / Be a student when someone else does.
Preferred Skills:
● Proven work experience as a Front-end developer with React.js.
● In-depth knowledge of JavaScript, CSS, HTML, jQuery, and front-end languages
● Knowledge of REACT tools including React.js, Webpack, Enzyme, Redux, Flux, etc.
● Familiarity with browser testing and debugging
● Understanding of layout aesthetics
● In-depth understanding of the entire web development process (design, development, and deployment)
● Knowledge of backend frameworks such as Ruby on Rails, Django. Experience with Ruby on Rails is a plus.
● Knowledge in Linux environment and basic Linux commands.
● Good understanding of SQL Databases and NoSQL datastores; with previous experience with MySQL and ElasticSearch being a bonus
● Great communication, particularly in explaining your coding processes, suggestions for best practices, and identifying ways to improve the team's coding quality.
● A high-performance mindset to deliver good quality code and also an understanding of the product with keen attention to detail.
● Design overall architecture of the web application.
● Maintain quality and ensure responsiveness of applications.
● Collaborate with the rest of the engineering team to design and launch new features.
● Maintain code integrity and organization.
● Experience working with graphic designers and converting designs to visual elements.
● Understanding and implementation of security and data protection.
● Highly experienced with front-end programming languages - HTML, CSS JavaScript, etc
● Proficient experience using - advanced JavaScript libraries and frameworks
Development experience for both mobile and desktop.
● Knowledge of code versioning tools such as Git
Requirement -
● Proven work experience as a Front-end developer
● Hands on experience with markup languages
● Experience with JavaScript, CSS and HTML
● Wordpress would be an added advantage.
● Prefer from Tier One college like ( IIIT, NIT, IIT, NSUT, DTU..etc )
● Familiarity with browser testing and debugging
● In-depth understanding of the entire web development process (design, development
and deployment)
● Understanding of layout aesthetics
● An ability to perform well in a fast-paced environment
● Excellent analytical and multitasking skills
● B. Tech. in computer science Preferred.
Previous experience as a UI Engineer.
Must have hands-on knowledge of web 2.0, including HTML5, CSS3
Must have hands-on knowledge of server-side CSS pre-processing platforms, such as SASS/LESS
Must have hands-on knowledge in JavaScript frameworks like Object Oriented JS, Typescript (ECMAScript 6)
Good understanding of asynchronous request handling, partial page updates, and AJAX
Good understanding of REST API Proficient understanding of cross-browser compatibility issues and ways to work around them.
Proficient understanding of code versioning tools, such as Git
Working knowledge of design specs (style guide) tools like Zeplin, Invision etc.
Your role and our tech stack
Reporting to the founder, you will be expected to develop, deploy and oversee the execution of the tech strategy, product road-map and operations to ensure alignment with our businesses goals as we grow and scale. You will play a key part in the organisation's success, taking the current MVP and developing it further to move the company through to early stage funding and into profit.
Quesst's is built using React.js [Frontend], Node.js [Backend], PostgreSQL [DB], Amazon EC2 [Application Hosting], Amazon S3 [Media Storage Service], and Amazon SES [Email Sending Service]. You will be responsible for implementing full-stack features and collaborate with other team members to plan each sprint. You’ll be working across the entire system architecture and be responsible for designing, implementing and maintaining restful APIs, micro-services and databases.









