Senior/ Lead Frontend Developer - React.js Framework

About Us

At Synorus, we’re building a suite of intelligent, AI-powered products that redefine how people interact with technology — from real-time video editing tools to legal intelligence and creative automation systems.

We are looking for a Frontend Developer who is passionate about crafting seamless, elegant, and high-performance user interfaces that bring next-generation AI experiences to life.

Key Responsibilities

• Design, develop, and maintain modular, scalable front-end components using React, Next.js, and TypeScript.
• Implement interactive, media-rich interfaces powered by AI and real-time data.
• Work closely with backend and AI teams to integrate APIs and WebSocket-based data flows.
• Ensure pixel-perfect, responsive, and accessible user interfaces across platforms and devices.
• Optimize performance through efficient rendering, lazy loading, and dynamic imports.
• Maintain high-quality code standards using TypeScript, ESLint, and testing frameworks.
• Contribute to our evolving design system and component library shared across products.
• Collaborate with designers and engineers to deliver intuitive, creative, and impactful user experiences.

Skills & Experience

• Strong proficiency in React, Next.js, TypeScript, and modern JavaScript (ES6+).
• Expertise in Tailwind CSS, Framer Motion, and other animation or motion libraries.
• Experience with state management tools such as Valtio, Redux, or Zustand.
• Familiarity with design tools like Figma and understanding of responsive grid systems.
• Experience integrating APIs and working with real-time data through WebSockets.
• Understanding of accessibility (WCAG), cross-browser compatibility, and performance optimization.
• Bonus: Experience with Remotion, Canvas APIs, or WebGL for video or AI-enhanced UIs.

Ideal Candidate

• Obsessed with clean, maintainable, and scalable UI code.
• Understands both design aesthetics and engineering trade-offs.
• Self-driven, detail-oriented, and thrives in a fast-paced startup environment.
• Excited to experiment with emerging technologies — AI, real-time collaboration, or creative tools.
• Loves solving complex problems through thoughtful, user-centric design.

Education

• Bachelor’s or Master’s in Computer Science, Engineering, or equivalent hands-on experience.
• A strong project portfolio or GitHub profile is highly preferred.

Why Join Us

• Work directly with the founding team and AI engineers on products shaping the future of creativity and automation.
• Be part of a fast-growing ecosystem where your work impacts multiple real-world products.
• Experience a flat hierarchy, flexible hours, and an environment that rewards innovation.
• Access to cutting-edge technologies, mentorship, and rapid growth opportunities.

We are seeking an experienced Senior React Web Developer to join our product development team. As a Senior React Web Developer, you will be responsible for developing and maintaining our web applications using ReactJS and Material UI. You will work closely with other developers, designers, product managers, and stakeholders to create high-quality, user-friendly, and scalable software.

Responsibilities:

• Design and develop high-quality, responsive, and user-friendly web applications using ReactJS and Material UI.
• Collaborate with product managers, designers, and stakeholders to ensure the project meets the business requirements and user needs.
• Write clean, maintainable, and efficient code.
• Optimize the application for maximum speed, scalability, and usability.
• Develop reusable UI components and libraries.
• Ensure the technical feasibility of UI/UX designs.
• Identify and troubleshoot bugs and issues.
• Stay up-to-date with the latest trends and technologies in ReactJS, Material UI, and front-end development.
• Participate in code reviews and contribute to the development of best practices.
• Mentor and guide junior developers in the team.

Requirements:

• Bachelor's degree in computer science or related field.
• At least 7 years of experience in front-end development, with at least 4 years of experience in ReactJS and Material UI.
• Strong proficiency in JavaScript, CSS, HTML, and related web technologies.
• Experience with Redux, Redux-Saga, and other state management libraries.
• Experience with building scalable and complex web applications.
• Strong problem-solving skills and attention to detail.
• Experience with Agile development methodologies.
• Strong communication and collaboration skills.
• Experience with Git and version control.
• Ability to work independently and as part of a team.
• Experience with GraphQL and Apollo Client.
• Experience with server-side rendering using Next.js .
• Experience with AWS or other cloud providers.
• Experience with CI/CD pipelines and automation.
• Experience with testing frameworks like Jest, Enzyme, or Detox.
• Experience with UX/UI design and prototyping tools.

Responsibilities :

1. Develop user-facing stack from scratch
2. Build reusable code and libraries for future use
3. Ensure the technical feasibility of UI/UX designs
4. Optimize application for maximum speed and scalability
5. Collaborate with other team members and stakeholders

Technology Skills :

1. Proven 4 years work experience as a ReactJS Frontend developer
2. In-depth understanding of the entire web development process (design, development and deployment)
3. Good experience with Typescript and ReactJS (17.x). NodeJS knowledge is a plus.
4. Familiarity with Unit Testing Frameworks, UI Testing, Monorepos and Graphql principles
5. Knowledge of Alerting and Monitoring tools
6. Knowledge of SPA principles
7. UI Performance: should have hands on experience of optimising page load, rendering, caching
8. Sense for appeal & aesthetics from a usability perspective.

Soft Skills :

1. Obsessed with best practices, structuring, documentation and have an eye for detail.
2. Self starter with a high level of drive and commitment.
3. High energy and drive to work in a startup environment.
4. Conceptual thinking, flexibility and ability to juggle with multiple responsibilities.
5. Ability to work under pressure and confidence to deal with complex issues.
6. Good communication skills.
7. Hands-on and detail oriented.

• Overall 4 years development experience with 2+ years of professional experience working with React Native
• An understanding of React Native best practices and a commitment to following them.
• Experience with popular React Native workflows such as Redux and ESLint, Jest, Enzyme.
• Experience with Agile development, scrum.

• Designing, building, prototyping, developing and implementing single-page responsive web applications for our cloud platform.
• Involved in decision making for design and technical aspects for modular and component-based architectures.
• Developing application code, services, user interfaces, user experience and unit tests.
• Ensuring high performance and responsive applications with state-of-the-art user experience.
• Experimenting with new technologies and working with integrated web-applications.
• Collaborating and iterating with the Product Managers, UI/UX and Backend teams to define, design, build, extend products and features.

• You have previously worked for a minimum of 3 years in a technical environment contributing as a programmer.
• You have proven expertise in the JavaScript ecosystem and used frameworks like ReactJS, Vue. Preference would be given to reactjs.
• You have exposure to Golang, TypeScript, HTML5, CSS3, JavaScript, jQuery, MySQL and Firebase.
• You must have strong debugging and problem-solving skills.

We are looking for a React Native developer interested in building performant mobile apps on both the iOS and Android platforms. You will be responsible for architecting and building these applications, as well as coordinating with the teams responsible for other layers of the product infrastructure. Building a product is a highly collaborative effort, and as such, a strong team player with a commitment to perfection is required.

• Build pixel-perfect, buttery smooth UIs across both mobile platforms.
• Leverage native APIs for deep integrations with both platforms.
• Diagnose and fix bugs and performance bottlenecks for performance that feels native.
• Reach out to the open source community to encourage and help implement mission-critical software fixes—React Native moves fast and often breaks things.
• Maintain code and write automated tests to ensure the product is of the highest quality.
• Transition existing React web apps to React Native.

Mastree's engineering team is working towards building a data science engine that enables students to learn in a way they understand the best. We believe in delivering learning experiences through engagement. The product is designed with countless embedded interactive information pieces to help the students imbibe the concepts better. At Mastree we take pride in being a part of the product that holds the potential to revolutionise the education process.

We are looking for folks who are passionate about creating interaction rich interfaces. Creative individuals who believe in the power of visuals.

Responsibilities:

• Creating visual elements that users see and interact within our web platform.
• This makes your role crucial for the success of the product.
• Working closely with the design, product management and development teams to create elegant, usable, responsive and interactive interfaces across multiple devices.
• Ensuring that the application is optimised both in terms of technology and in delivering the best educational content.
• Building web platform for our live tutoring platform
• Creating interactive learning activities for K12 students and work on our upcoming products

Requirements:

• You are an avid programmer
• You have great grasp of fundamentals of JavaScript and ES modules, new ECMASCRIPT concepts
• You have experience in ReactJS web app development
• You are an exceptional problem solver, with attention to details.

Brownie Points:

• Good HTML and CSS skills
• Experience in React-Native app development
• Ability to work in small teams and wear multiple hats