

- Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model
- Thorough understanding of React.js and its core principles
- Experience with popular React.js workflows for state management (such as Redux/Mobx)
- Familiarity with RESTful APIs
- Knowledge of modern authorization mechanisms, such as JSON Web Token
- Familiarity with modern front-end build pipelines and tools
- Experience with common front-end development tools such as Babel, Webpack, NPM, etc.
- Ability to understand business requirements and translate them into technical requirements
- A knack for benchmarking and optimization
- Experience in Python or Java/Kotlin development

About 91social
About
Connect with the team
Similar jobs

What you’ll be doing
- Lead the development of our platform’s front end.
- Work with the product and design teams along with the founders to build new product features from start to finish: through conception, research, implementation, and maintenance.
- Work closely with founders and internal/external stakeholders to build products, tools, and services from scratch and deliver high-quality software solutions.
- You'll leverage your frontend knowledge to help improve performance and reliability, and polish existing features.
- Share your technical expertise to help the team make thoughtful and scalable design decisions and identify performance bottlenecks to troubleshoot quickly.
- Manage product development priorities, deadlines, and deliverables.
- Ensure high-performant and responsive web applications and websites.
Skills & Qualities we’re looking for
- Bachelor’s/Master’s degree in Computer Science (or equivalent experience).
- 2-4 years of experience as a frontend developer (rare exceptions for highly skilled developers) at a fast-paced, preferably early / growth stage start-up.
- You're familiar with HTML, CSS, Javascript, and a React-like UI framework.
- Knowledge of codebases and version control systems (Git).
- You have experience debugging performance issues with UI in modern browsers across multiple platforms.
- Well-versed with SQL database design & RDBMS concepts.
- Strong arithmetic reasoning, logical and analytical thinking skills.
- Strong knowledge of code quality maintenance and performance analysis.

🔴Profile: React Native Developer
🔷 Experience- 2+ Years
🔷 Location- Mumbai, Andheri East
🔷 Mode- 5 Days WFO
(Only immediate joiners & candidates who have completed notice period)
✨ What we want:
✅ 2+ years React Native experience
✅ JavaScript, JSX & mobile development
✅ React Hooks & component lifecycle
✅ Native module integration (iOS/Android)
✅ State management (Redux/Context API)
✅ REST APIs & third-party integrations
✅ Navigation libraries (React Navigation)
✅ Mobile UI/UX best practices
✅ Testing frameworks (Jest, Detox)
✅ Mumbai, Andheri East based candidates only
No relocation cases - candidate should be present in Mumbai

Job Title: Mid-Level Frontend Developer (React/TypeScript)
Job Description: We are looking for a Mid-Level Front End Developer with 2-3 years of experience in React and TypeScript to join our team. The ideal candidate should have a strong understanding of React and TypeScript, and be able to write high-quality, maintainable code. They should also be familiar with module CSS, have experience working with component libraries and state management frameworks, and have a passion for creating beautiful and intuitive user interfaces.
Responsibilities:
● Develop high-quality, scalable, and maintainable code using React and TypeScript
● Collaborate with cross-functional teams to design and implement new features
● Participate in code reviews and contribute to code quality improvement initiatives
● Use our in-house component library and Storybook to develop reusable components
● Work with Recoil.js for state management and Context API for in-house libraries
● Write clean, efficient, and well-documented code that follows best practices
● Ensure code quality and maintainability through automated testing, linting, and code analysis
● Stay up-to-date with the latest trends and technologies in front-end development
Requirements:
● 2-3 years of experience in developing front-end applications using React and TypeScript
● Strong understanding of HTML, CSS, and JavaScript
● Familiarity with module CSS and component libraries
● Experience with state management frameworks like Recoil.js and Context API
● Strong understanding of code quality and best practices
● Excellent problem-solving and analytical skills
● Good communication and teamwork skills
● Bachelor’s degree in Computer Science or a related field is preferred


- Experience with Web Components and Custom Elements
- Understanding of data visualization concepts and technologies (SVG, D3.js)
- Familiarity with JavaScript build tools such as Webpack.
- Git Source Control
- Unit and E2E Testing - Cypress.io / Chai / Karma / Jasmine / etc.
- Experience building responsive interfaces.
- Good sense for building visually appealing products.
- Some Node experience
- Experience using RESTful Web Service Architecture
- Experience working in Agile Environments
- To be considered for this role, you must have:
- A deep understanding of building complex, single-page JavaScript apps using frameworks such as Angular, React, or Vue
- Fluency with JavaScript, TypeScript, CSS and SASS
- In this Senior Front End Engineer position, you will:
- Inherit a well-architected, clean and robust codebase built with TypeScript, Angular, and SCSS/SASS with a modern interface
- Work with our design team and other engineers to make sure our application is performant and intuitive to use
- Evaluate and implement new libraries and components
- Ensure best practices are followed in the design and development of the application
- Contribute to and help manage our open source libraries

Skills:-
Javascript, HTML, CSS, Angular.
Responsibilities: -
• Developing and maintaining all server-side network components.
• Ensuring optimal performance of the central database and responsiveness to
front-end requests.
• Collaborating with front-end developers on the integration of elements.
• Designing customer-facing UI and Front-end services for various business
processes.
• Developing high-performance applications by writing testable, reusable, and
efficient code.
• Implementing effective security protocols, data protection measures, and
storage solutions.
• Running diagnostic tests, repairing defects, and providing technical support.
• Documenting Node.js processes, including database schemas, as well as
preparing reports.
• Recommending and implementing improvements to processes and
technologies.
• Keeping informed of advancements in the field of Front-end development.
Required Skills and Professional Expertise:
• Bachelor's degree in computer science, information science, or similar.
• Proven hands-on- experience on Software Development.
• At least one year of experience in Angular js.
• Hands-on-experience in designing application using Angular js, HTML, CSS, Javascript.
• Profound insights of Angular (Class loading, Memory Management,
Transaction Management etc.)
• Experience in developing Web applications using at least one popular web
framework (MVC)
• Experience with test-driven development.
• Superb interpersonal, communication, and collaboration skills.
• Exceptional analytical and problem-solving aptitude.
• Availability to resolve urgent web application issues outside of business hours.
2. Work on building, maintaining, and testing the front-end of the web application
3. Work on taking architectural and design decisions
4. Work on reviewing and approving pull requests
5. Proactively identify and fix any software bugs/improvements
6. Take the initiative to improve the system's software architecture, UI, UX, scalability, and performance
7. Participate in the customer meetings for solution design and technical discussions
8. Help in customer support activities by resolving any technical queries/issues reported by the customer

1) Understand client requirements and functionalities.
2) Write well-designed, testable, efficient code.
3) Responsible for solving complex technical issues.
4) Ensure quality projects are delivered within defined timelines.
5) Active involvement in client communication to understand functional requirements.
6) Maintain high standards of quality for code, documentation and other deliverables.
Required Skills
1) Good experience in Angular Latest Versions
2) Hand on Node.JS./Express JS
3) Database : MYSQL/MongoDB
4) Experience in Java Script, Typescript.
5)Good experience in HTML5, CSS3, JavaScript, Jquery
6) Experience working in an Agile environment.
7) Good communication skills.

Primary Skill: Java Script
Secondary: HTML5,JS Library- React.js,React JS,User Experience Design
HTML, CSS, CSS3, JavaScript, Object Oriented JS, Angular JS, Ecma Script (ES6),React JS/Angular/TypeScript
Basic understanding of HTTP protocol, Web Application Design/Architecture
OOPS concept, JSON, AJAX
Knowledge of REST API
Basic understanding of Git
Basic understanding of client-server communication
Ready to take up challenges at work
Learning ability
Team spirit
Basic understanding of single page web application
Analytical Skills
Communication
Adaptability
Logical and Problem Solving

