
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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JOB PROFILE: - SOFTWARE ENGINEER TRAINEE
Experience with Web fundamentals like HTML5, JavaScript, CSS3, and JSP, etc.
Good understanding of Object-Oriented JavaScript (OOJS), ES6,
Hands-on exp in Web app development using modern client-side MVC frameworksusing ReactJS
Thorough understanding of ReactJs and its core principles
Experience with common front-end development tools such as Babel, Webpack, NPM,etc.
Experience developing custom reusable components in ReactJS
Proficient understanding of unit testing using JavaScript test frameworks like JEST
Experience integrating REST APIs
Ability to understand business requirements and translate them into technical requirements
Position Overview:
As a Frontend Developer, you will be responsible for creating and implementing innovative user interfaces and ensuring the seamless integration of design and functionality. The ideal candidate should have a minimum of 1.5 years of experience in front-end development, with a strong proficiency in React, JavaScript, SCSS, HTML, frontend architecture design, and design concepts
Responsibilities:
Collaborate with the design and development teams to translate UI/UX designs into interactive web pages or applications.
Develop responsive web interfaces and ensure cross-browser compatibility.
Write clean, modular, and maintainable code using best practices and coding standards.
Optimize application performance and ensure scalability.
Conduct thorough testing and debugging to identify and fix issues.
Collaborate with backend developers to integrate frontend interfaces with server-side logic.
Stay up-to-date with the latest front-end technologies, trends, and frameworks.
Participate in code reviews and provide constructive feedback to improve code quality.
Work closely with stakeholders to understand requirements and propose effective technical solutions
Qualifications:
Bachelor's degree in Computer Science, Engineering, or a related field.
Minimum 1.5 years of experience as a Frontend Developer.
Strong proficiency in React, JavaScript, CSS, and HTML.
Solid understanding of frontend architecture design patterns and concepts.
Experience with frontend frameworks like Redux, Vue.js, or Angular is a plus.
Familiarity with RESTful APIs and asynchronous request handling.
Knowledge of version control systems (e. g., Git) and project management tools (e. g., Jira).
Ability to collaborate effectively with cross-functional teams.
Strong problem-solving skills and attention to detail.
Excellent communication and interpersonal skills.
About Optiblack LLC
Optiblack LLC is a company that specializes in providing tech and analytics services. We offer a range of solutions to help businesses meet their goals, including:
- Data Analytics: we can help you extract insights from your data to make informed decisions.
- Web Development: we can design and build custom websites for your business.
- Mobile App Development: we can create mobile apps for both iOS and Android platforms.
- AI and Machine Learning: we can leverage these technologies to automate tasks and improve efficiency.
Optiblack LLC has a team of experienced professionals who can help you with your project. They have a track record of success in delivering high-quality solutions to our clients.
About the Role
We are looking for a passionate and talented intern developer to join our growing team at Optiblack LLC. This is a fantastic opportunity to gain hands-on experience building and maintaining our React Native mobile application. You will work alongside experienced developers and contribute to a product used by millions of users.
Responsibilities:
- Develop new features and functionalities for our React Native mobile application.
- Collaborate with designers and backend developers to ensure a seamless user experience.
- Write clean, maintainable, and well-documented code.
- Fix bugs and identify areas for improvement in the existing codebase.
- Stay up-to-date with the latest trends and technologies in React Native development.
- Participate in code reviews and provide constructive feedback.
Qualifications:
- Strong understanding of React Native development concepts.
- Experience with JavaScript (ES6+) and related frameworks.
- Familiarity with React development principles is a plus.
- Experience with Git version control system.
- Excellent problem-solving and debugging skills.
- Ability to work independently and as part of a team.
- Strong communication and interpersonal skills.
- A passion for learning and staying updated with the latest technologies.
Bonus Points:
- Experience with building cross-platform mobile applications.
- Experience with UI/UX design principles.
- Experience with unit testing frameworks like Jest or Mocha.
- Experience working on Social Media Apps or having an interest in working on them.
** Internship Duration:** 3 Months
Location: Remote
To Apply:
Please submit your resume and a cover letter explaining your interest in the position and why you think you would be a good fit for our team
Strong problem solving and analytical skills.
Strong hands on experience with JavaScript/Angular technologies e.g. Angular, TypeScript,React JS, JavaScript, CSS, XML, HTML and JQuery.
Coordinating with the other development team members for fast and quality development.
Collaborate as a technical expert and SME in the area of front-end design & development
Research, integrate, and consume external APIs
- 5+ years of experience as a Full Stack front end developer
- Proficient understanding of web markup, including HTML5, CSS3.
- Good understanding of client-side scripting and advanced JavaScript libraries/frameworks, AngularJS
- Good understanding of asynchronous request handling, knowledge of AngularJS practices and hand on implementation of complex AngularJS applications, directives, controllers, services.
- Good understanding of AJAX and JavaScript Dom manipulation Techniques.
- Experience in JavaScript build tools like grunt or gulp.
- Proficient with the JavaScript language and its modern ES6+ syntax and features.
- Proficient with .NET framework and its core principles
- Proficient understanding of code versioning tools, such as GIT/Bitbucket.
- Critical thinker and problem-solving skills.
- Good time management skills.
- Great interpersonal and communications skills.
This is a remote position.
About Company
Our client is angle funded, growth stage B2B SaaS startup that enables a seamless and streamlined collaboration between big pharma, bio-techs and their external manufacturing partners.
Job Profile
- Develop all user-facing products in React.JS
- Build reusable components and front-end libraries for future use.
- Translate designs and wireframes into high quality code
- Focus on code maintainability and performance of application.
- Provide technical advice and assists in solving programming problems
Requirements
- Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model
- Good foundation in design and a knack for designing interactions and elegant interfaces
- Thorough understanding of React.js and its core principles
- Good to have experience with popular React.js workflows (such as Flux or Redux)
- Experience with data structure libraries
- Familiarity with RESTful APIs
- Familiarity with modern front-end build pipelines and tools
- A knack for bench-marking and optimization
- Familiarity with code versioning tools (such as Git)
- Proficient in industry standard best practices such as Design Patterns, Coding Standards, Coding module, Prototypes etc.
- Experience in using debugging tools used for profiling/optimizing performance
- Experience in debugging, tuning and optimizing UI components
This company is a network of the world's best developers - full-time, long-term remote software jobs with better compensation and career growth. We enable our clients to accelerate their Cloud Offering, and Capitalize on Cloud. We have our own IOT/AI platform and we provide professional services on that platform to build custom clouds for their IOT devices. We also build mobile apps, run 24x7 devops/site reliability engineering for our clients.
You will be working on AI/IOT react native mobile apps and responsible for hands-on coding.
We need someone who can write well designed, testable, efficient code by using the best software.
We are looking for a can do it attitude, and the ability to deliver with high velocity and high-quality at the same time. You must have experience developing and designing amazing UI screens.
This person MUST have:
- BE Computer Science, MCA or equivalent
- Mobile app development experience.
- Good understanding of the full mobile development life cycle,strong debugging and problem-solving skills.
- Unit-test code for robustness, including edge cases, usability, and general reliability.
- Strong React Native experience
- Understanding of APIs, pagination,searching,sorting
- Creating high performance UI etc.
- Familiarity with native build tools, like XCode, Android Studio, Gradle.
- Leverage native APIsfor deep integrations with both platforms.
- Strong communication skills.
Experience:
- Min 3 year experience
- Not more than 15 year experience.
- Startup experience is a must.
Location
- Remotely, anywhere in India
Timings:
- 40 hours a week but with 4 hours a day overlapping with client timezone. Typically clients are in California PST Timezone.
Position:
- Full time/Direct
- We have great benefits such as PF, medical insurance, 12 annual company holidays, 12 PTO leaves per year, annual increments, Diwali bonus, spot bonuses and other incentives etc.
- We dont believe in locking in people with large notice periods. You will stay here because you love the company. We have only a 15 days notice period.
1. Strong knowledge in Front end scripting like EJS, JavaScript, Jquery
2. Proficiency with fundamental front-end languages such as HTML, CSS.
3. Familiarity with JavaScript frameworks such as Angular JS, React, and Amber.
4. Proficiency with server-side languages such as Python / Ruby / Java / PHP/ .Net
5. Good Understand with database technology such as MySQL, Oracle, and MongoDB.
We are looking for a creative, skilled UI developer to design websites with functionality and aesthetics in mind. The UI developer will work with back-end developers and web developers to ensure that the website is optimized for several devices and presented in an attractive way.
To be successful as a UI developer you should have excellent knowledge of HTML, JavaScript, and CSS. In addition to this, you must work well in a team as there are several individuals involved in the development process.
UI Developer Responsibilities:
- Work with other developers to ensure that the website is functional and visually appealing.
- Liaise with the client to gauge their needs and expectations.
- Plan the layout of the website.
- Ensure that the website is optimized for various devices.
- Use analytics to test client enjoyment.
UI Developer Requirements:
- Proficiency in HTML, JavaScript, jQuery, and CSS.
- Knowledge of Adobe Illustrator.
- Good interpersonal skills.
- Understanding of key design principles.
- Good problem-solving skills.
- 4-8 years of experience in UI development.
• - Hands-on experience of HTML 5, CSS, JavaScript and Typescript
• - Hands-on experience in Angular 2+ version • - Strong knowledge of REST API • - Solid understanding of Object-Oriented programming.
• - Ability to work independently and should have an excellent interpersonal and communication skills.
• - Well-versed with RxJS
• - Can lead a team.
• - Good communication skills & ability to work with multiple stakeholders onshore. Desirable Skills • - Basic knowledge of server-side technology e.g. Nodejs and MongoDB will be preferable.
• - Well-versed with Agile methodology. Soft Skills:
• - Excellent organizational and troubleshooting skills with attention to detail to consistently minimize errors.
• - Professional, reliable, and possess strong work ethics.
• - Excellent communication skills








