
- Strong proficiency in React Native and JavaScript (ES6+).
- Experience with Redux, Context API, or other state management tools.
- Familiarity with TypeScript and strong understanding of mobile app architecture.
- Knowledge of native build tools like Xcode and Android Studio.
- Experience with RESTful APIs and third-party libraries.
- Familiarity with GraphQL is a plus.
- Hands-on experience in implementing pixel-perfect designs and animations.
- Proficiency in using libraries like React Navigation, NativeBase, or Material-UI.
- Experience with testing libraries like Jest, Detox, or Appium.
- Strong debugging skills using tools like Chrome DevTools, Flipper, or similar.
- Experience deploying apps to the App Store and Google Play Store, including managing certificates and provisioning profiles

About Wissen Technology
About
The Wissen Group was founded in the year 2000. Wissen Technology, a part of Wissen Group, was established in the year 2015. Wissen Technology is a specialized technology company that delivers high-end consulting for organizations in the Banking & Finance, Telecom, and Healthcare domains.
With offices in US, India, UK, Australia, Mexico, and Canada, we offer an array of services including Application Development, Artificial Intelligence & Machine Learning, Big Data & Analytics, Visualization & Business Intelligence, Robotic Process Automation, Cloud, Mobility, Agile & DevOps, Quality Assurance & Test Automation.
Leveraging our multi-site operations in the USA and India and availability of world-class infrastructure, we offer a combination of on-site, off-site and offshore service models. Our technical competencies, proactive management approach, proven methodologies, committed support and the ability to quickly react to urgent needs make us a valued partner for any kind of Digital Enablement Services, Managed Services, or Business Services.
We believe that the technology and thought leadership that we command in the industry is the direct result of the kind of people we have been able to attract, to form this organization (you are one of them!).
Our workforce consists of 1000+ highly skilled professionals, with leadership and senior management executives who have graduated from Ivy League Universities like MIT, Wharton, IITs, IIMs, and BITS and with rich work experience in some of the biggest companies in the world.
Wissen Technology has been certified as a Great Place to Work®. The technology and thought leadership that the company commands in the industry is the direct result of the kind of people Wissen has been able to attract. Wissen is committed to providing them the best possible opportunities and careers, which extends to providing the best possible experience and value to our clients.
Connect with the team
Similar jobs
React Native Developer:
Exp-5 to 8 Years Location -Bangalore
- Proficient in React, JavaScript (ES6+), and TypeScript.
- Expertise in state management libraries (Redux, Zustand, etc.).
- Hands-on experience with react-navigation and deep linking.
- Solid understanding of Expo (both managed and bare workflows).
- Knowledge of native development (Swift/Objective-C for iOS, Java/Kotlin for Android).
- Experience with custom native module bridging and native UI integration.
- Strong debugging skills using tools like Flipper and Chrome DevTools.
- Familiarity with Jest, React Native Testing Library.
- Experience with REST APIs, GraphQL, and real-time data (WebSockets).
- Ability to manage OTA updates with EAS Update and configure EAS Build.
- Experience in app publishing and release lifecycle on both Play Store and App Store
- Knowledge of secure storage, token handling, and app-level security practices.
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Experience with popular React.js workflows (such as Flux or Redux)
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Experience with data structure libraries (e.g., Immutable.js)
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Experience with standard front-end development tools such as Babel, Webpack, NPM, etc.
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Thorough understanding of React.js and its core principles
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Familiarity with RESTful APIs and backend services
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Familiarity with code versioning tools such as Git, SVN, and Mercurial
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Familiarity with modern front-end build pipelines and tools
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Knowledge of isomorphic React is a plus
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Knowledge of modern authorization mechanisms, such as JSON Web Token
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Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model
Avegen is a digital healthcare company empowering individuals to take control of their health and supporting healthcare professionals in delivering life-changing care. Avegen’s core product, HealthMachine®, is a cloud-hosted, next-generation digital healthcare engine for pioneers in digital healthcare, including healthcare providers and pharmaceutical companies, to deploy high-quality robust digital care solutions efficiently and effectively. We are ISO27001, ISO13485, and Cyber Essentials certified; and compliant with the NHS Data Protection Toolkit and GDPR.
Job Summary:
Senior Software Engineer will be responsible for developing, designing, and maintaining the core framework of mobile applications for our platform. This includes tasks such as creating and implementing new features, troubleshooting and debugging any issues, optimizing the performance of the app, collaborating with cross-functional teams, and staying current with the latest advancements in React Native and mobile app development. We are looking for exceptional candidates who have an in-depth understanding of React, JavaScript, and TypeScript, can create pixel-perfect UI, and are obsessed with creating the best experiences for end users.
Your responsibilities include:
- Architect and build performant mobile applications on both iOS and Android platforms using React Native.
- Work with managers to provide technical consultation and assist in defining the scope and sizing of work.
- Maintain compliance with standards such as ISO 27001, ISO 13485, and Cyber Essentials that Avegen adheres to.
- Lead configuration of our platform HealthMachine™ in line with functional specifications and development of platform modules with a focus on quality and performance.
- Write well-documented, clean Javascript/TypeScript code to build reusable components in the platform.
- Maintain code, write automated tests, and assist DevOps in CI/CD to ensure the product is of the highest quality.
- Lead by example in best practices for software design and quality. You will stay current with tools and technologies to seek out the best needed for the job.
- Train team members on software design principles and emerging technologies by taking regular engineering workshops.
Requirements:
- Hands-on experience working in a product company developing consumer-facing mobile apps that are deployed and currently in use in production. He/she must have at least 3 mobile apps live in the Apple App Store/Google Play Store.
- Proven ability to mentor junior engineers to realize a delivery goal.
- Solid attention to detail, problem-solving, and analytical skills & excellent troubleshooting skills.
- In-depth understanding of React and its ecosystem with the latest features.
- Experience in writing modular, reusable custom JavaScript/TypeScript modules that scale well for high-volume applications.
- Strong familiarity with native development tools such as Xcode and Android Studio.
- A positive, “can do” attitude who isn’t afraid to lead the complex React Native implementations.
- Experience in building mobile apps with intensive server communication (REST APIs, GraphQL, WebSockets, etc.).
- Self-starter, able to work in a fast-paced, deadline-driven environment with multiple priorities.
- Excellent command of version control systems like Git.
- Working in Agile/SCRUM methodology, understanding of the application life cycle, and experience working on project management tools like Atlassian JIRA.
- Good command of the Unix operating system and understanding of cloud computing platforms like AWS, GCP, Azure, etc.
- Hands-on experience in database technologies including RDBMS and NoSQL and a firm grasp of data models and ER diagrams.
- Open source contributions and experience developing your own React Native wrappers for native functionality is a plus.
Qualification:
BE/BTech/MS in Information Technology, Computer Science, or a related discipline.
Responsibilities
- Work closely with design, product management, and development teams to create elegant, usable, responsive, and interactive interfaces across multiple devices.
- Turning UI/UX designs into prototypes, creating awesome 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 usage by monitoring key metrics and rectifying the issues proactively.
- An ability to perform well in a fast-paced environment and bring in optimal flow for rapidly changing design/ technology.
Requirements
- 2 to 5 years of relevant work experience as a web developer, UI developer, JavaScript expert, or frontend engineer
- Sound knowledge in JavaScript, ReactJS, HTML, CSS
- Familiar with UI layouts, SASS, bootstrap, and Material UI
- Experience debugging using popular JavaScript-based tools like Chrome Developer Console
- Knowledge of TDD frameworks mocha, chai, jest etc.
- Understanding of Typescript
- Understanding of ReactJS based frameworks like NextJS, Gatsby, etc.
- Understanding of REST API
- Passionate to create good design and usability
Responsibilities:
- Responsible for development of new highly-responsive, web-based user interface
- Work and collaborate in a scrum structure
- Develop components and libraries that are reusable and future-proof
- Develop a flexible and well-structured APIs to support the system
Required Skills:
- Excellent understanding of Javascript including the OOP concept and how DOM work
- Thorough understanding of React.js and its core principles
- Prior experience with popular React.js workflows (such as Flux or Redux)
- Prior experience with data structure libraries (e.g., Immutable.js)
- Familiarity with RESTful APIs
- Familiarity with HTML / CSS
- GIT experience
- 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.
- Should be comfortable working in our Bangalore office from Day 1.
- Should possess good communication skills.
About Eastvantage:
At Eastvantage, our mission is to create meaningful jobs and provide careers that are knowledge-based, inspiring, and always with the potential for development and growth.
We are an independently-owned Global business solutions company enabling offshore operations from our locations in the Philippines, India, Bulgaria, Vietnam and Belgium. With European roots, we provide our services to global companies that have offices in every populated continent in the world. We have been in the industry for over a decade, growing from a handful to over 1200 happy employees over the years.
We invite you to navigate through our website to get to know who we are, to see what sets us apart in culture and thinking. Join us and be part of our success story!
Responsibilities
• Build applications using JavaScript frameworks such as React.js, Vue.js or svelte.js
• Build reusable UI components, ensuring that UI code base is scalable and maintainable
• Ensure the technical feasibility of UI/UX designs
• Optimize application for maximum speed and scalability
• Good in writing unit test cases, and can follow test driven development approach
• Participate in user experience design and architecture initiatives
• Collaborate with other team members and stakeholders to ensure smooth delivery and elicit new
requirements
• Perform troubleshooting steps, if any, in the phase of implementation, customization, and
configuration
• Having good debugging skills and proficiency in tool to build next-generation web apps
Mandatory Skills
• Knowledge of Functional and OO JavaScript/ES6
• Built web Applications using HTML5, CSS3, and JavaScript with Frameworks like React.js(Hooks
and context API), Vue.Js and svelte.js
• Basic understanding of Typescript and type language concepts
• Clear fundamental understanding of server-side rendered apps, experience with frameworks like
Next,js or Nuxt.js is the Best
• Good understanding of lib and frameworks like Webpack (4.0), lodash, any charting lib like d3.js or
Victory
• Expertise in using JavaScript state Management libraries such as Redux or Mobx
• Prior experience in building responsive design layouts using a formal framework like Material UI.
• Familiarity with best practices (web security concepts, ensuring browser & device compatibility,
etc.)
• Experience in development and debugging tools for cross-browser issues
• Working knowledge of integrating with RESTful APIs for server-side functionality
• Ability to work well individually and in a group setting, under pressure and deadlines
Requirements
• B.Tech/ B.S. or M.Tech/ M.S. in Computer Science, IT or related field.
• 5-8 years of experience.
Desirable Skills
• Hands-on experience with using Git (handling branching and merging), any DevOps pipeline,
• Experience with Agile methodologies
- 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.
Summary
We are looking for talented front-end developers who can help us in enabling our customers deliver excellent experiences to end users. As a customer experience management firm , we are constantly enhancing user experiences in several of our customers' online platforms. The role of a front-end developer in our teams is crucial in realising our design solutions without any loss in translation. We are looking for developers who can contribute in building the best in class digital experiences through the right use of frameworks , technologies and code.
Responsibilities
Design and Develop web / mobile applications using front-end technologies like Angular7+, CSS , JS , HTML and many more.
Implement applications that have high standards of quality and the best of the performance.
Translate UX / UI designs from our design teams into high quality code without any loss in translation Design and implement optimised components, modules and applications using best practises of front- end development and clean coding standards
Work closely with backend development teams on API design and integration.
Deliver code with maximum coverage using unit-testing frameworks and testing practises such as TDD .
Optimise code continuously to improve quality , maintainability and performance.
Qualification and Experience
2 - 5 years of experience in front-end development of web / mobile applications . Experience in backend technology stacks will be an advantage
Key Skills
Strong proficiency in Angular7+, JavaScript .
Strong skills in HTML , CSS , SCSS and any CSS Frameworks .
Thorough understanding of any front-end frameworks like React , Angular or any other along with its core principles
Experience with data structure libraries , state managements, functional / reactive programming . Familiarity with newer specifications of ES6.
Experience with RESTful APIs integration
Knowledge of modern authorisation 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.
A knack for benchmarking and optimisation
- Developing new user-facing features.
- Working alongside product to understand our requirements, and designing, developing and iterating, thinking through the complex architecture.
- Writing clean, reusable, high-quality, high-performance, maintainable code.
- Ensuring the technical feasibility of UI/UX designs and optimizing applications for maximum speed.
- Researching and applying new technologies, techniques, and best practices.
What you need to have:
- Experience in working on frameworks like React and VueJS
- Excellent teamwork skills, flexibility, and ability to handle multiple tasks.
- Strong understanding of Object-Oriented Programming, Data Structures, and Algorithms .
- Strong knowledge of Javascript, HTML5, CSS3.
- Extensive experience working on Javascript
Experience: 2 to 7 years








