React Native Mobile Application Developer

Job Title- Flutter Developer (3-5 Years Experience)

Location-Mumbai, India

Job Overview

Seeking an experienced Flutter Developer with 3-5 years of software development experience, specializing in building high-performance, scalable, and visually engaging cross-platform mobile applications using Flutter and Dart. The role requires a proactive developer who can take ownership of the entire app development lifecycle from concept

to deployment, with strong collaboration skills to work with product teams and designers.

Key Responsibilities

 Design, develop, test, and deploy robust mobile applications on both iOS and Android platforms using Flutter and Dart, ensuring a smooth and engaging user experience.

 Architect and implement efficient state management solutions using Provider, Riverpod, BLoC, or similar frameworks for maintainable and scalable code.

 Integrate RESTful APIs, third-party SDKs (such as Firebase), GraphQL, and real-time communication protocols like WebSockets to enhance app capabilities.

 Perform rigorous unit testing, debugging, and code reviews to ensure high-quality, secure, and bug-free applications.

 Optimize app performance for various devices and screen sizes by profiling and fine-tuning CPU and memory usage.

 Collaborate closely with UI/UX designers to translate design wireframes and prototypes into functional apps following best practices for accessibility and responsiveness.

 Work with backend engineers and product managers to clarify requirements, suggest technical solutions, and deliver features within sprint timelines.

 Mentor junior developers, share knowledge about Flutter best practices, and contribute to setting coding standards and workflows.

 Handle app store submissions, managing releases, versioning, and compliance with app store policies.

 Stay current with Flutter ecosystem updates, tools, plugins, and best practices to continuously improve development quality and efficiency.

Required Qualifications

 3-5 years of professional experience in mobile application development,

particularly with at least 2 years dedicated to Flutter and Dart.

 Bachelor's degree in Computer Science, Information Technology, or a related engineering field.

 Demonstrated experience building scalable, maintainable Flutter applications with clean architecture and adherence to SOLID principles.

 Strong understanding of object-oriented programming and design patterns (MVC, MVVM, Clean Architecture).

 Hands-on experience with version control tools such as Git and CI/CD pipelines. Essential Skills

 Deep knowledge of Flutter framework internals, widget lifecycle, and Flutter’s rendering and animation system.

 Expertise in UI development including custom widgets, animations, gestures, and responsiveness across multiple devices.

 Experience working with local databases like SQLite or Hive for offline data persistence.

 Solid understanding of integrating and securing APIs, asynchronous programming, and multi-threading in Flutter apps.

 Familiarity with testing frameworks, including unit, widget, and integration tests for Flutter.

 Knowledge of performance optimization tools and techniques specific to mobile applications.

 Comfortable working within Agile and Scrum development processes, with good communication and teamwork skills.

Preferred Skills

 Experience with third-party SDK integrations such as payment gateways, analytics, crash reporting, and push notifications. Understanding of mobile security practices like data encryption, secure storage, and compliance requirements.

 Contributions to Flutter or Dart open-source projects or active participation in developer communities.

 Experience leading teams or mentoring junior developers is an advantage.

 Familiarity with hybrid mobile frameworks like React Native or native iOS/Android

development is a plus.

About the Role:

We are hiring a Senior Frontend Engineer to build high-performance, scalable, and visually refined web applications. This is a hands-on engineering role focused on architecture, performance, and crafting exceptional user experiences.

You will work closely with design, product, and backend teams to build robust frontend systems, define engineering standards, and ship production-grade features that scale.

Responsibilities:

- Build scalable, modular frontend applications using React, Next.js, and TypeScript

- Architect component-driven UI systems and reusable design libraries

- Implement robust state management using Redux, Zustand, or similar

- Optimize Core Web Vitals, performance, and accessibility (WCAG)

- Translate Figma/design specs into pixel-perfect, production-grade interfaces

- Improve build systems, CI/CD pipelines, and developer tooling

- Implement testing strategies — unit, integration, and E2E (Jest, Cypress, Playwright)

- Mentor junior engineers and define engineering standards

- Collaborate with backend teams to design API contracts and integrations

Must Have:

- 5+ years of experience in frontend engineering

- Strong expertise in JavaScript/TypeScript and React/Next.js

- Experience building scalable frontend architecture from scratch

- Deep understanding of browser rendering, performance, and optimization

- Strong grasp of responsive design and accessibility best practices

- Experience with state management — Redux, Zustand, or similar

- Ability to write clean, maintainable, production-ready code

Good to Have:

- Experience building design systems or component libraries

- Familiarity with SSR/SSG and performance-driven architectures

- Experience with micro-frontends or large-scale frontend systems

- Exposure to cloud deployment workflows and frontend observability

- Three.js or WebGL experience

Tech Stack:

JavaScript / TypeScript · React · Next.js · Tailwind · Redux / Zustand · Webpack / Vite · Jest · Cypress · Playwright · GraphQL · REST APIs

Work Details:

- Location: HSR Layout, Bengaluru (Work from Office)

- Working Days: 6 days/week (Mon-Fri WFO, Sat WFH)

- Employment Type: Full-time

Compensation:

- Competitive salary

- Stock options with 4-year vesting

- Performance-based incentives

To Apply:

Share your resume, GitHub profile, portfolio or live product links, and a short note on a challenging frontend problem you solved.

Zolvit is seeking a highly motivated and experienced Frontend Software Engineer to join our

growing engineering team. As a key member of the team, you will play a crucial role in

designing, developing, and maintaining high-performance, user-centric frontend experiences

across web and mobile platforms. You will have the opportunity to work on challenging problems

at scale and contribute to a product that will potentially power millions of businesses in India.

Responsibilities:

● Design, develop, and deploy high-quality, user-friendly frontend applications using

modern JavaScript frameworks (e.g., Next.js, React, Angular, Vue.js).

● Develop and maintain native mobile applications for both iOS and Android platforms.

● Collaborate with backend engineers to integrate frontend applications with backend APIs

using microservices architecture.

● Write clean, efficient, and well-documented code, adhering to best practices and coding

standards.

● Collaborate with cross-functional teams, including product, design, and QA, to deliver

exceptional user experiences.

● Participate in code reviews, design discussions, and knowledge sharing sessions.

● Implement and maintain CI/CD pipelines, promoting automation and continuous delivery.

● Monitor and optimize the performance of frontend applications, ensuring a smooth and

responsive user experience.

● Champion a quality-driven development approach, including unit testing, integration

testing, and end-to-end testing.

● Stay up-to-date with the latest trends and technologies in frontend development and

mobile app development.

Qualifications:

● Bachelor's degree in Computer Science or a related field, or equivalent practical

experience.

● Proven experience in frontend software engineering, with a strong focus on building and

scaling web and mobile applications.

● Strong proficiency in JavaScript and at least one modern JavaScript framework (e.g.,

Next.js, React, Angular, Vue.js).

● Experience developing and deploying native mobile applications for iOS and Android

platforms using languages like Swift, Kotlin, or React Native.

● Solid understanding of object-oriented programming principles and design patterns.

● Experience integrating frontend applications with backend APIs, preferably within a

microservices architecture.

● Familiarity with RESTful APIs and other common API protocols.

● Experience with state management libraries and techniques (e.g., Redux)

● Experience with modern CSS frameworks (e.g., Tailwind CSS, Material UI).

● Experience with CI/CD pipelines and tools (e.g., Jenkins, GitLab CI, CircleCI).

● A strong understanding of computer science fundamentals and excellent

problem-solving and analytical skills.

● A proactive and collaborative approach to work.

● A passion for building high-quality user experiences and a commitment to continuous

improvement.

● Experience working in an Agile environment.

Bonus Points:

● Experience with GraphQL, performance optimization techniques.

● Contributions to open-source projects.

● Experience working in a fast-paced, high-growth environment..

Experience with deploying applications on cloud infrastructure, preferably AWS

• Experience in using REST APIs with the front end

• Experience in handling webMap applications using leading webMap Javascript APIs like ReactJS Leaflet, Google Maps Javascript API and Geoserver management

• Experience with the Agile/Scrum development model

• Strong experience in code versioning using Git.

• Strong design, development, and implementation experience.

• Very good experience in React JS, React Leaflet and Redux

About Upswing

Open banking is a reality of this decade and it needs robust, customizable and secure rails to run on. Our mission is to enable consumer companies to offer differentiated financial products and empower financial institutions with greater reach through our Secure, Scalable, and easy-to-integrate API platform.

Every company today has an opportunity to extend financial services to make banking experiences lively and delightful. Our open finance-as-a-service platform is highly customizable, simple, and modular which significantly reduces the integration effort for our partners to launch financial products in weeks, not years.

At Upswing, we are a passionate and self-driven team of thinkers who aspire to build the rails to connect the legacy financial sector with financial innovators through a simple and powerful banking-as-a-service (BaaS) platform.

What will you do if you join us?

• Implement responsive web design principles to ensure that our company website renders well across multiple devices
• Design a framework for creating user apps that grow with the needs of the company
• Monitor website performance, watch for traffic drops related to site usability problems, and rectify the issues
• Review app and feature coding and plan future website upgrades with the development team
• Assist in the development of applications and features that will be put on the website and in internal functions as well

You should have

• Bachelor’s Degree in Computer Science or a related field, with 3+ years of web development experience. Development experience for Mobile screens would be a plus
• Strong knowledge of Javascript. Proficiency in Typescript & React Js would be a plus
• Strong knowledge of web development tools and programming languages

Hands-on experience in React.js  and Good understanding of core concepts

Hands-on experience in state management libraries like Redux.

Hands-on experience in HTML5 & CSS3 and JavaScript.

Experience integrating with Restful web services

Proficient with ES6/7/8 syntax and concepts

Proficient knowledge of cross-browser compatibility issues

Knowledge of modern authorization mechanisms, such as JSON Web Token

Experience with common front-end development tools such as Babel, Web pack, NPM.

• 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

We are looking for a great JavaScript developer who is proficient with React.js. Your primary focus will be on developing user interface components and implementing them following well-known React.js workflows (such as Flux or Redux). You will ensure that these components and the overall application are robust and easy to maintain. You will coordinate with the rest of the team working on different layers of the infrastructure.

Responsibilities:

• Developing new user-facing features using React.js
• 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.

Skills:

• Familiarity with RESTful APIs
• Familiarity with modern front-end build pipelines and tools
• Experience with popular React.js workflows (such as Flux or Redux)

➢    Expert in React JS with about 4 years of experience

➢    Experience in using libraries like D3, Material UI, style sheets and theme management

➢    Should be able to understand requirements & design, develop efficient React JS Code, should have used tools to automate the test and deployment to production

➢    Should have good knowledge on REST APIs, Error handling and writing Unit and Integration Tests

➢    Knowledge of Java is desirable

Responsibilities

➢    Understand the Visual Designs, Functional Requirements and come up with the design/components needed to build the user interface.

➢    Work with Visual Designers to understand the graphic design patterns, themes, and implement in a structured way in the product front end

➢    Work with server side microservices team to develop the JSON contracts

➢    Develop efficient React JS code to implement these requirements

➢    Automate the testing and deployment of these components to production

The Job: ReactJs Developer

The Company: Unify Technologies (http://www.unifytech.com/">www.unifytech.com)

What we are looking for: We are interested to hire “ReactJS” candidates who good at coding/programming.

Experience: 2-9 Years

Domain: It’s a product based project

Work Location: Hyderabad

Employment Mode: Permanent

Notice Period: 0-30 Days (Mandatory), Strictly we are looking who can join us as soon as possible who can make it within 30 days atleast.

Interview Available Date and Mode: 20^th July 2019, F2F