
ReactNative ● 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.

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
Job Title: Sr. Frontend Developer (Javascript)
Location: Remote Only
Experience Required: 4–6 years
Salary Range: 7L – 10L per year
About the Role:
We are looking for an experienced Sr. Frontend Developer with strong expertise in Javascript to join our remote team. The ideal candidate will have 4–6 years of hands-on experience in frontend development, with a focus on building responsive, high-performance web applications. You will work closely with cross-functional teams to design, develop, and implement user-facing features that align with business goals and enhance user experience.
Key Responsibilities:
- Develop and maintain scalable, reusable frontend components and applications using modern Javascript frameworks and libraries.
- Collaborate with UI/UX designers, product managers, and backend developers to deliver seamless user experiences.
- Optimize applications for maximum speed, scalability, and accessibility.
- Write clean, modular, and well-documented code following best practices.
- Participate in code reviews, sprint planning, and agile development processes.
- Troubleshoot, debug, and resolve frontend-related issues.
- Stay updated with emerging frontend technologies and industry trends.
Must-Have Skills:
- Javascript (ES6+)
- React.js
- React Native
- NodeJS (Node.js)
- SQL
Nice-to-Have Skills:
- Experience with state management libraries (Redux, Context API, etc.)
- Familiarity with testing frameworks (Jest, Cypress, React Testing Library)
- Knowledge of frontend build tools (Webpack, Babel, NPM/Yarn)
- Understanding of RESTful APIs and GraphQL
- Experience with version control systems (Git)
- Familiarity with CI/CD pipelines and deployment processes
Qualifications:
- 4–6 years of professional frontend development experience.
- Proven track record of delivering high-quality, production-ready applications.
- Strong understanding of responsive design, cross-browser compatibility, and web performance optimization.
- Excellent problem-solving skills and attention to detail.
- Ability to work independently in a remote environment and communicate effectively with distributed teams.
What We Offer:
- Competitive salary within the range of 7L – 10L per year.
- Fully remote work flexibility.
- Opportunity to work on innovative projects with a talented and supportive team.
- Professional growth and skill development opportunities.

About the role
Our UX is a key differentiator. We invest heavily in UI, aiming for a snappy and intuitive experience. We believe in Product-Led Growth, which holds that even enterprise adoption of software tools begins with individual users. The key to achieving this is creating a user experience that prompts customers to respond quickly. We are investing in amazing UX at every touchpoint: website, help docs, dev docs, community, contacting support, asking sales for a demo, etc. This work is high-impact as it affects not only the immediate business goals of driving sign-ups but will have a long-lasting impact on our brand.
About the role
Our UX is a key differentiator. We invest heavily in UI, aiming for a snappy and intuitive experience. We believe in Product-Led Growth, which holds that even enterprise adoption of software tools begins with individual users. The key to achieving this is creating a user experience that prompts customers to respond quickly. We are investing in amazing UX at every touchpoint: website, help docs, dev docs, community, contacting support, asking sales for a demo, etc. This work is high-impact as it affects not only the immediate business goals of driving sign-ups but will have a long-lasting impact on our brand.
What it means to be an early engineer
Being part of the founding team, you will have the opportunity to shape the future of sustainable energy. Together, we’re going to face the hardest technical challenges this journey has to offer head-on. As the team grows, you’ll be the battle-hardened expert that everyone looks to for guidance. Your role will be pivotal in building a mission-critical analytics platform that encompasses predictive ML models, real-time analytics, and user-friendly dashboards.
As a Frontend Engineer, here’s what you’ll be doing
- Develop our web applications using React, Redux, Next.js, HTML, CSS
- Build scalable and interactive data visualization components for complex analytics
- Integrate external tools for product analytics
- Create and execute test plans and test cases ensuring high-quality user experiences
- Quickly develop proof of concepts (POCs) for new features or product ideas
- Regularly update and maintain website content and assets
We are excited about you because you have:
- Proven 4+ years of experience as a Frontend Developer with a strong portfolio of web applications developed using React, Next.js, and other similar technologies
- Strong understanding of HTML and various CSS Frameworks
- Familiarity with integrating advanced charting libraries, maps, calendars, and other third-party components into web applications
- Proven expertise in handling browser components DOM, Cookie, Session etc
- Proficiency in frontend testing methodologies for flawless user experience and optimizing web application performance
- Good understanding of website management and maintenance, SEO, CMS, etc.
You’ll be a great fit if:
- You have 4+ experience in building frontend applications
- Previously worked in a startup environment and have a high degree of ownership and appetite for ambiguity
- Like being a part of a high-performing team focussed on fast-paced execution at the same time detail-oriented
- A relentless desire to solve customer problems and chase down answers
Why choose Our Client?
We're the leader in battery analytics and are backed by prominent investors like YC. Today, we're the only company single-mindedly focused on enabling the world's transition to electric vehicles. We are among the most innovative companies that use data to uncover insights about electric vehicles and batteries. More importantly, you will have the opportunity to implement your tech skills to solve real-world issues like climate change. Let's do something great together.
Why choose Our Client?
We are looking for a good 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. Therefore, a commitment to collaborative problem solving, sophisticated design, and quality product is important.
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:
- 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 (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
- Familiarity with modern front-end build pipelines and tools
- Ability to understand business requirements and translate them into technical requirements
- A knack for benchmarking and optimization
- Familiarity with code versioning tools (such as Git, SVN, and Mercurial)
Frontend Developer (ReactJS)
Company Profile
Egregore Labs (www.egregorelabs.com) is a financial software company founded in 2017 by Prashant Vijay (ISB, Tulane) & Hari Balaji (IIM Ahmedabad, IIT Madras) both of whom have spent over a decade each in Financial Services, with a majority of their experience at Goldman Sachs across New York, Hong Kong & Singapore in roles across Trading, Quant & Technology.
Opportunity
We are looking for an experienced Frontend engineer with ReactJS development experience to join our team.
Here’s are some of the things you might have to do on any given day:
- Implement responsive and performant UIs with user centered approach with frontend technologies including ReactJS, Javascript(ES 6), Typescript, SCSS, etc
- Write meaningful test cases for frontend &
- Integrate our products with 3rd party products/tools/services
- Develop Infrastructure for delivering services using a performance driven approach, build databases, schedule automated jobs, etc
Ideal Background / Experience
- At least 5 yrs of diverse experience in web development for product or services oriented environment with exposure to working production deployments
- Expertise in programming using Python/ReactJS or similar scripting languages
- In-depth exposure to technologies used in web-based SaaS products, including REST APIs
- Sound understanding of Postgres and NoSQL databases such as MongoDB
Nice to have exposure to any of
- AWS
- Azure
- ELK
- Object Relational Models (SQLAlchemy, etc)
- Google APIs
- Microservices Architecture Pattern
- NodeJS / ExpressJS
Work From Home
● B.Tech/M.Tech degree in Computer Science, Engineering or a related subject
● Proven hands-on Software Development experience
● Strong proficiency in JavaScript and the JavaScript object model is a must.
● Thorough understanding of React.js and its core principles
● Prior experience with popular React.js workflows (such as Flux or Redux)
● Familiarity with RESTful APIs
● Familiarity with HTML / HTML5 CSS/CSS3/ Bootstrap
● Mobile app development experience with Flutter/Dart is a big plus; or willingness to learn these technologies.
● Experience with MySQL is a plus.
● Preferably prior experience in working in a start-up.
Job Summary
We are urgently looking for an Angular Developer with 2-3 Years of experience in Angular5 and above. We are looking for a hands-on person who could design and code a system. The person should have demonstrable experience in a minimum of 3 projects of a duration of 6-12 months (or more). The project should be a full web app (please provide us with the links).Essential Responsibilities:
· Strong understanding of overall web design including basic usability, accessibility, industry standards, architecture, and navigation
· Experience with general user experience concepts and ability to design highly effective user interfaces
· Implement the frontend components and architecture for new features
· Work with backend engineers to specify the APIs that will power these features.
· Architect efficient and reusable front-end systems that drive complex web applications
· Build reusable code and libraries for future use to ensure the technical feasibility of UI/UX designs Optimize application for maximum speed and scalability
· Strong knowledge of frontend optimization, performance techniques, and security design
Required skills:
· Angular (5-12 version)
· Angular: -Rxjs, NGRX, Storybook
· Must know how to create reusable components
· Flexbox/Grid layout experience
· Typescript fundamentals
· JavaScript fundamentals
· Data structures expertise
· HTML/CSS
· ES6
· SCSS
In this role, you will be responsible for developing and integrating UI
components using React.js, hooks, typescript, ES6 and redux.
Should be good in unit testing library like react testing library/enzyme and jest
Should have in-depth knowledge of JavaScript and OOPs concepts, excellent front-end
coding skills, and a good understanding of the integration of REST services.
Experience/Knowledge with node.js, express.js, mongodb and mongoose will be an added advantage.
Preferably with 3 to 5 year
Job Description:
Translating system requirements into the design and development of systems.
Transform vital business needs into code and drive innovation.
Collaborating and integrating code into enterprise systems.
Creative problem-solving skills.
Attitude to achieve the goals with complete ownership and hard work.
Technical Skills:
Must Have:
- 2+ Years of experience in UI/Front-end development of rich interactive web-based applications or modules.
- Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model.
- Experience working as a React.js Developer. Thorough understanding of React.js and its core principles.
- In-depth knowledge of JavaScript, CSS, HTML, HTML 5, JSON, XML and front-end languages.
- Knowledge of REACT tools including React.js, Webpack, Enzyme.
- Knowledge of MVC Pattern and Architecture. Experience with popular React.js workflows (such as Flux or Redux)
- Experience with user interface design.
- Experience with web debugging and performance testing software.
- Experience in all testing phases of development including Unit & Integration Testing.
- Excellent troubleshooting skills.
- Team player
- Excellent time-management skills
Beneficial:
- Working experience with Core Java.
- Knowledge of Jquery , Nodejs, Bootstrap, Struts, Spring, Hibernate, JSP, JSF, Angular, Vue,js Framework.
- Working with Databases (MSSQL, Oracle, Postgres)
- Working experience on source code version control systems (SVN, GIT)
- Working experience on Issue Tracking tool e.g. Jira, Bugzilla
- Working experience on Code Analysis tools e.g. Sonar Qube, Checkmarx.
- Experience in Restful Web Services integration.
- Knowledge of performance testing frameworks including Mocha and Jest.
- Independent worker
- Great interpersonal and communication skills
Responsibilities
- Participate as a team member in all phases of software development lifecycle.
- Co-ordinating with the team on individual responsibilities and roadblocks.
- Perform design, development and testing on individual tasks
- Managing initiatives on UI/UX work
- Transparently share the challenges & feedbacks.
- Participate in integrated testing of product/ package.
- Designing a modern highly responsive web-based enterprise application component user interface.
- Building reusable components and front-end libraries for future use.
- Translating designs and wireframes into high-quality code.
- Learn and understand user interactions.
- Optimizing components for maximum performance across a vast array of web-capable devices and browsers
- Coordinating with various teams working on distinct layers.
- Providing technical assistance to the other teammates.
- Keep compliance with Quality Systems and Procedures.
Duties and Responsibilities:
Building interactive consumer data from multiple systems and REST fully abstracting to the UI through an Angularjs developer backend
Define code architecture decisions to support a high-performance and scalable product with a minimal footprint
Address and improve any technical issues
Collaborate well with engineers, researchers, and data implementation specialists to design and create advanced, elegant, and efficient systems
Requirements and Qualifications:
Previous working experience as an Angularjs developer for 2 years
Bachelor's degree in Computer Science or similar relevant field
In-depth knowledge of Angularjs developer, ExpressJS or Restify
Experience implementing applications using Angular 1 or React
Experience creating front end applications using HTML5, Angular, LESS/SASS
Hands-on experience with JavaScript Development on both client and server-side
Experience with modern frameworks and design patterns, minimum one-year experience with MEAN Fullstack paradigm
Knowledge of the following will be considered as an advantage:
Consumer Web Development Experience for High-Traffic, Public Facing web applications
Experience with cloud technologies is also a plus
Creating secure RESTful-based web services in XML and JSON, Javascript, JQuery
Continuous integration (Jenkins/Hudson) and version control (SVN, Git)

Responsibilities-
- Developing new user-facing features using React.js, HTML5, CSS3
- 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-
- Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model
- Good understanding of HTML5, CSS3 concepts
- Thorough understanding of React.js and its core principles
- 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)
- 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.









