React.js Developer

About Us

Heyo & MyOperator are India’s leading Conversational platforms, enabling 40,000+ businesses to engage customers over Call and WhatsApp—including leading brands like Lenskart, Astrotalk, and Caratlane. As a product-led SaaS company, we’re rapidly scaling and building mobile-first experiences that power real-time, impactful communication. We're looking for an experienced React Native Developer to help us craft high-performance mobile applications that scale with our growth.

Job Overview

We’re hiring a React Native Mobile App Developer with hands-on experience building cross-platform applications for Android and iOS. You’ll be responsible for developing responsive UI components, integrating APIs, and delivering high-quality, efficient, and maintainable mobile apps. You’ll work closely with cross-functional teams including designers, product managers, and QA to bring seamless experiences to life.

Key Responsibilities

• Design and implement clean, maintainable user interface components using React Native.
• Build and maintain mobile apps for both Android and iOS platforms.
• Convert wireframes and prototypes into high-quality mobile UI.
• Work with native modules and third-party libraries when required.
• Leverage native APIs for deep integration with mobile platforms.
• Optimize application performance and troubleshoot bottlenecks.
• Write unit tests to ensure reliable and bug-free code.
• Implement smooth animations and transitions for enhanced user experience.
• Integrate RESTful APIs and manage state using Redux or React Query.
• Collaborate with product, design, and QA teams to meet project timelines.

Qualifications & Skills

• Minimum 3 years of professional experience with React Native.
• Strong understanding of JavaScript, React fundamentals, and mobile UI design.
• Proficiency in Redux or similar state management libraries.
• Experience working with REST APIs and asynchronous data handling.
• Familiar with native build tools: XCode, Gradle, Android Studio.
• Solid grasp of the full mobile app development lifecycle—from prototyping to deployment.
• Knowledge of unit testing, TypeScript, PropTypes, and debugging tools.
• Exposure to React.js for web development is a plus.
• Experience with RDBMS (MySQL, PostgreSQL) is a plus.

Why Join Us?

• Build real-world products used by thousands daily.
• 100% remote role with high ownership and visibility.
• Be part of a fast-growing SaaS company with a strong engineering culture.
• Collaborate with smart, passionate teammates in a flexible, outcome-driven environment.

Responsibilities

• Interact closely with design, product, and development teams to create elegant, usable, responsive and interactive interfaces across multiple devices.
• Turning UI/UX designs into prototypes, creating excellent interactions from designs, writing reusable content modules and maintainability of the code.
• Implement UI development principles to ensure that the product client-side serves at scale.
• Review and optimize the app usage by monitoring key metrics and rectifying the issues proactively.
• Review and Optimize application usage, by monitoring key metrics, for maximum speed and scalability
• Mentoring and guiding the team members.
• An ability to perform well in a fast-paced environment and bring in optimal flow for rapidly changing design/ technology.

Requirements

• 5+ years of relevant work experience as a web developer, UI developer, Angular Developer or front-end engineer.
• Sound knowledge in HTML, CSS & JavaScript.
• Familiar with UI layouts, SASS, Bootstrap, and the CSS GRID system
• Proficient with Typescript (Angular 2 & above)
• Thorough understanding of the responsibilities of the platform, database, API, caching layer, proxies, and other web services used in the system.
• Passionate to create good design and usability
• A team player with excellent communication skills

LogiNext is looking for a technically savvy and experienced Engineering Leader to take up front-end development efforts. You will design and develop elegant interfaces that exceed client expectations in terms of value and benefit. You will collaborate on scalability issues involving visualizing massive amounts of data and information. You will identify, define and communicate best practices for front end.

You are passionate about building secure, high-performing and scalable front-end applications. Your design intuition inclines towards usability, elegance and simplicity. You are biased towards open-source tools and existing frameworks. You have demonstrated strong inter-personal and communication skills.

Responsibilities

• Lead and direct UI/UX team, define software architecture, collaborate with other teams to explore existing systems, determine areas of complexity and potential risks to successful implementation of advanced visualization products
• Define software architecture, collaborate with other teams to explore existing systems, determine areas of complexity and potential risks to successful implementation of advanced visualization products
• Translate wireframes into functional requirements, write well-abstracted, reusable, high-performance code for UI components
• Work closely with design, product management and development teams to create elegant, usable, responsive and interactive interfaces
• Contribute to continual improvement by suggesting improvements to user interface, software architecture or new technologies
• Optimize web applications to maximize speed and scale. Support diverse clients from high-powered desktop computers to low-end mobile devices
• Understand and coach/teach others, show a high level of ethics and team-work

 Requirements

• Bachelor/Master’s degree in Computer Science, Information Technology or a related field
• 10+ years of experience in developing responsive, elegant, efficient and cross-browser front-end applications
• Hands on experience on various MVC frameworks, UI libraries and tools such as Angular, ReactJS, HTML5, CSS3, D3.js
• Hands on experience on Map API’s like Google Maps, Openstreetmap and other powerful information-rich maps
• Familiar with UX processes and design
• Proven ability to drive large scale projects with deep understanding of Agile SDLC, high collaboration and leadership
• Excellent written and oral communication skills, judgment and decision making skills

Job Description

• Should be proficient with core object oriented JavaScript
• Ability to build full stack application using React/Node/Mongo or any other DB
• React Js
• Redux
• Bootstrap & Responsive design concept with HTML5/CSS3 ideas
• npm/nvm concept and hands on experience on usage
• Git as version control tool
• Clear idea of REST API and ability to read API docs and integrate independently

About Senrya Technologies Pvt.Ltd. –

We are a full-stack avant-garde product organization with its roots in East India (Kolkata) and expanse in North East, Maharashtra, Gurgaon, Karnataka and has made Kolkata from backwaters of IT to a live-wire hub of innovation.  We blend innovation and next-gen technologies with rich experience of more than a decade and undaunted ambition with the primary objective to build highly scalable solutions that will impact a billion lives. 

Senrysa group of companies includes three business verticals that contribute to our success story - Fintech, Retailtech, Healthtech. The growth trajectory of Senrysa has been 100% every passing year.

Fintech - We are one of the leading Fintech organization in financial inclusion with innovative ICT solutions. Senrysa Technologies was an early adopter of the India Stack and has pioneered the Aadhaar Enabled Payment System under the flagship of the business correspondent model for masses and has acquired more than 30 million customers till date under this initiative. We take pride in been granted RuPay Certification from NPCI. Senrysa has diversified client base from Public Sector Bank, Private Bank, Regional Rural Bank to Co-operative Banks across India.

Retailtech - NDHGO is an AI-enabled B2B  online ordering platform that empowers small and medium businesses to go online in less than a minute thereby offering unorganized retail players a level playing field to compete with organized aggregators. It will also enable them to sell and market their product offerings online with zero commission. We aim to develop a sustainable online ecosystem for the stores and make their presence digitally discernible and accelerate customer engagement with a mobile first approach and simplicity of adoption where retailers can list their products from the NDHGO Catalogue Builder and share the link to their store with customers through WhatsApp and trending Social Media.  Please refer attached presentation for a quick overview.

Healthtech

Understanding the dire need for new practices and procedures and to ensure that quality and timely healthcare reaches every corner of India, we are into Healthcare. We are developing the most advanced IoT based telemedicine devices, this would advent smart health practices that would help improve quality, increase access and affordability.

Benefits:
Competitive Package
Esops
Retention Bonus
Joining Bonus
Relocation Bonus
Higly skilled team members with vast knowledge & expertise

• Responsible to develop web application using Angular 2 or above.
• To Create functional requirements and design documents for new features in web application.
• Write and maintain the front end code of web applications & To work in UI development.
• Must have developed web application.
• Hands on experience in Angular 2 or above , JavaScript, JQuery, HTML, HTML5, CSS, Bootstrap.
• Knowledge in jasmine or karma (optional)

• Building reusable components and front-end libraries for future use
• Translating designs and wireframes into high-quality code
• Optimizing components for maximum performance across a vast array of web-capable devices and browsers
• Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model
• Experience with popular React.js workflows (such as Flux or Redux)
• Familiarity with newer specifications of EcmaScript
• Experience with data structure libraries (e.g., Immutable.js)
• Knowledge of isomorphic React is a plus
• Familiarity with RESTful APIs
• Knowledge of modern authorization mechanisms, such as JSON Web Token
• 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
• Ability to work through new and difficult React Native Issues and contribute to libraries as needed.
• Ability to create and maintain continuous integration and delivery of React Native applications.