
Key Responsibilities
- Develop and implement user-centric features on web platforms to enhance overall experience and usability.
- Collaborate with designers, backend engineers, and product teams to deliver cohesive and scalable products.
- Solve diverse technical and integration challenges by building efficient solutions that connect with automation systems.
- Apply best practices to create reusable, testable, and maintainable components and frameworks.
- Optimize application performance and ensure responsive and adaptive design across multiple devices and browsers.
Qualifications
- Strong understanding of modern front-end development frameworks and architecture.
- Hands-on experience building interactive, high-performance web applications.
- Proficiency with:
- React, Redux, html, css, javascript
- Build tools like Vite, CSS preprocessors such as Less/Sass
- Solid grasp of UI/UX principles, responsive design, and accessibility standards.
- Experience integrating front-end solutions with REST APIs or automation systems is a plus.
- Strong problem-solving skills and a collaborative mindset.

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
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React Frontend Developer Mobile Responsive UI & Testing
Location: Remote
Shift: EST hours
Company: ARDEM Incorporated
Position Overview:
ARDEM is seeking an experienced Frontend Developer to enhance our existing React-based loan amortization desktop application by extending it with full mobile responsiveness and comprehensive testing. This role focuses on adapting and optimizing the current web application for iPad and iPhone devices, ensuring a seamless and consistent user experience across all viewports without developing a separate mobile app.
Key Responsibilities:
- Extend existing React components using responsive CSS to ensure optimal usability on iPad and iPhone devices.
- Adapt complex financial data tables and interactive interfaces for touch-friendly mobile interaction while preserving full desktop functionality.
- Implement progressive enhancement techniques to scale features effectively across varying device sizes.
- Identify and resolve edge cases in the data transformation pipeline and improve application robustness.
- Develop comprehensive technical test cases to validate component behavior, data flow, and API integrations.
- Debug and resolve CSS layout and rendering issues across devices, screen sizes, and orientations.
- Collaborate with backend and QA teams to ensure high-quality, stable, and performant releases.
Required Skills & Experience:
- Strong proficiency in React, JavaScript (ES6+), and modern CSS (Flexbox, Grid, media queries).
- Proven experience extending existing codebases to add responsive functionality (not limited to greenfield development).
- Experience building and optimizing financial or data-intensive web applications for responsiveness.
- Solid understanding of progressive enhancement and adaptive design patterns.
- Expertise in unit testing, integration testing, and writing detailed test documentation.
- Hands-on experience with Zustand or similar state management libraries.
- Familiarity with service-layer architectures and data transformation workflows.
Tech Stack:
- Frontend: React (functional components, hooks), Zustand (state management), TanStack Table (React Table)
- Backend: Node.js / Python APIs
- Architecture: Desktop-first application to be extended for mobile
Nice to Have:
- Experience working on financial or loan management applications.
- Familiarity with Salesforce API integrations.
- Understanding of web accessibility standards (WCAG).
- Experience optimizing large datasets or data tables for mobile devices.
Deliverables:
- Responsive enhancements for existing desktop components.
- Mobile-optimized layouts that extend, not replace, desktop functionality.
- Comprehensive test suite with fully documented test cases.
- Strengthened code architecture and error handling.
- Detailed technical documentation outlining the mobile optimization strategy.
Additional Requirements
This opportunity enhances your work life balance with allowance for remote work. To be successful your computer hardware and internet must meet these minimum requirements:
- Laptop or Desktop:
- Operating System: Windows
- Screen Size: 14 Inches
- Screen Resolution: FHD
- Processor: I5 or higher
- RAM: Minimum 8GB (Must)
- Type: Windows Laptop
- Software: AnyDesk
- Internet Speed: 100 MBPS or higher
Role: Full Stack Developer
Industry Type: BPM / BPO
Department: Engineering - Software & QA
Employment Type: Full Time, Permanent
Role Category: Software Development
Education
UG: B.Tech/B.E. in Computers
• Ensuring high performance on mobile and desktop
• Writing tested, idiomatic, and documented JavaScript, HTML, and CSS
• Coordinating the workflow between the graphic designer, the HTML coder, and yourself
• Cooperating with the back-end developer in the process of building the RESTful API
• Communicating with external web services
• Ensure high-quality graphic standards and brand consistency
• Stay up-to-date on emerging technologies
• Write functional requirement documents and guides
- Deep knowledge of Angular practices and commonly used modules based on extensive work experience
- Proficiency with JavaScript and HTML5
- Extensive knowledge of CSS and JS methods for providing performance visual effects and keeping the frame rate above 30fps at all times
- Thorough understanding of the responsibilities of the platform, database, API, caching layer, proxies, and other web services used in the system
- Creating custom, general use modules and components which extend the elements and modules of core Angular
- Ability to understand business requirements and translate them into technical requirements
About Klenty:
Klenty is a Software Product company operating in the Sales Engagement category. We
are one of the fastest growing SAAS startups in the sales engagement space, headquartered in
California and operating from Chennai, India. Klenty’s Sales Engagement Product helps
thousands of sales teams automate all the repetitive activities involved in the sales process like
sending emails, follow-ups, tracking engagement metrics, etc - so that the sales team can focus
more on activities like building relationships and closing deals. With over 3000 customers all
over the world, we are on a mission to transform every B2B Sales team into an unstoppable
force. Join us in building the future of sales engagement software.
JD :
Responsibilities:
- Developing new user-facing features using ReactJS.
- Building reusable components and front-end libraries for future use
- Translating designs and wire-frames into high quality code
- Optimizing components for maximum performance across a vast array of web-capable devices and browsers
- 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 ReactJS 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.
As a Senior Experience Technologist, you’ll be working as part of an agile team with other passionate, driven, and talented people, creating innovative solutions for our clients. Your primary responsibilities will include developing interactive web-based, mobile, and/or desktop applications using Sapient as well as industry best practices to deliver high value and quality to Publicis Sapient clients.
What are we looking for in you?
• Technical end-to-end design for stories by collaborating with business analyst/product owner, technical architect and clients
• Implement stories end-to-end, which includes Frontend, Backends for Frontend (BFF), Caching and also service orchestration in some cases) using best engineering practices like test-driven development, SOLID principles and consideration of non-functional requirements like performance, scalability, security or cloud readiness (as applicable) at the story level
• Automates testing at unit, module and integration level as needed using tools relevant for the platform (e.g. Jasmine, Jest, Karma, Webdriver.io etc.)
• Focus on quality by implementing best practices like logging, calling out technical debt, meeting KPIs using code quality tools like SonarQube, ESLint (customize and sync with Sonar), Stylelint/Sasslint and so on.
• Hands-on with automating redundant work, like common component structure, both in terms of scaffolding as well as using the right design patterns / creating abstractions.
• Mentor junior engineers in helping review code, guiding on technical decision making
Key Requirements:
• 4-9 years’ experience
• Hands-on knowledge of HTML5, CSS3, JavaScript
• Hands-on experience working with Object Oriented JavaScript (OOJS), JavaScript - and practical uses in building complex interactive experiences, primarily with ECMAScript 2015+. You should be up-to-date with new specifications (different stages), and also, using transpilers like Babel to use features from all stages
• Good understanding of creational and structural design patterns in JavaScript
• Experience working with Single Page Applications (SPA) with universal rendering capabilities.
• Good understanding of React.js, its core principles - lifecycle methods, virtual DOM etc. and at least 6 – 12 months hands-on experience with the same
• Understanding of one-way data flow and the Flux architecture.
• Understanding of stateful (container) vs stateless (presentational) components and how to break down the application page into components
• Core understanding of how React’s state management works out of the box.
• Understanding of different CSS architectures that go hand-in-hand with React.js application development. Pros and cons of component-level CSS vs global and where to apply each
• Thorough understanding of Webpack bundler (version 2+).
• Good understanding of the Web Components standard.
• Hands-on experience with building Progressive Web Apps (PWAs) on any framework.
• Hands-on experience with Frontend Performance Optimization – especially in a React application with respect to resource loading strategy, CPU/Memory profiling on the browser.
• Hands-on experience with test-driven development using Jest or equivalent. Familiar with snapshot testing, code coverage. Experience working with utilities like Enzyme
• Experience using fluid grids, and building responsive/adaptive websites using Bootstrap etc.
• Understanding of SEO and accessibility and making it part of the development workflow
• Moderate to Strong graphics manipulation/optimization skills using Photoshop is a plus.
Knowledge & experience of the below skills will earn additional brownie points:
• Logically understands relational databases like MySQL and non-relational databases like MongoDB and can manage to work with it.
• Hands-on experience with GraphQL.
• Hands-on experience working with client-side templating languages like Handlebars, Mustache, etc.
• Hands-on experience with Functional Programming (FP)
• Hands-on experience working with frontend build systems and automating the same using any task runner
• Understanding of hybrid vs native mobile apps – and pros/cons with respect to PWA.
Hands-on experience working with server-side JavaScript frameworks like Express, Koa, Hapi etc. (based on Node.js
• Good understanding of REST APIs and Microservices. Should have an understanding of how resources are organized and how an application should align based on the same. You are expected to have an understanding of how CRUD operations map to HTTP methods for a well-designed service.
• Hands-on with DevOps pipeline and able to tweak/change build/deployment pipeline as needed in the context of a module (e.g. Jenkins / Travis / Now.sh / Gitlab)
• Experience with configuring Webpack from scratch and working knowhow of Rollup / Parcel.
Education:
Bachelors in Computer Science or equivalent education covering Math, Algorithms, Data Structures, Networking, Databases, Operating Systems, Graphics.
About us: At Publicis Sapient, we enable our clients to thrive in Next and to create business value through expert strategies, customer-centric experience design, and world-class product engineering. The future of business is disrupting, transforming, platforming, and becoming digital to the core. We see it in every major industry, from financial services to automotive, consumer products, retail, energy, and travel. We are looking for people who have the courage to break out of what has always been to go do what will be. If you have an optimism that says there is no limit to what we can achieve in this exciting time, then we should talk. Our work is fueled by challenging boundaries, multidisciplinary collaboration, highly agile teams, and the power of the newest technologies and platforms. Our people thrive because of the belief that it’s both our privilege and
responsibility to usher our clients and the world into Next. We are seeking those deeply skilled, bold, collaborative, flexible, and who want to reimagine the way the world works to help businesses improve the daily lives of people, and the world. This is the world-class engineering team where you should build your career.
NowPurchase is transforming the 140B$ Metal Manufacturing industry. The metal industry forms the backbone of the economy and the fundamental block of the physical world - be it transportation, construction and every machinery. NowPurchase is building a rich, digital marketplace where Metal Manufacturers can procure high quality raw materials in a trusted manner. At the same time we are building the OS (Operating System) that will supercharge their productivity and processes to ultimately make procurement autonomous. Now Purchase raises
USD 2.4 million in Nov 2021, led by Orios Venture Partners, InfoEdge Ventures.
The B2B manufacturing industry has a lack of digitisation globally. NowPurchase envisions being the operating system for metal manufacturers, starting off with foundries. The end goal is to be able to automate procurement by creating & connecting the different systems both on the software and hardware end (ex: furnaces, spectrometers).
Website: https://nowpurchase.com/" target="_blank">https://nowpurchase.
LinkedIn: https://www.linkedin.com/company/nowpurchase/" target="_blank">https://www.
About the role:
We are looking to add an immensely talented Lead Front End Engineer that will help us invent, design, refine and deliver products that will meet our vision. Expect to build a lot of web interfaces and dashboards both for the browser as well as native IoT-enabled terminals that will be placed at the manufacturers' premises. You need to lead the front end team to make sure they are delivering high quality code and are constantly inspired to experiment with tools to push
out MVPs.
Job Role:
● You’ll be working directly with the lead and the product team to make decisions about your code and future of the product.
● Working on modular code installing over web, mobile and native IoT enabled terminals that leverage REST-based services and real time sockets.. This would include visual dashboards and minimising the time that are critical for the manufacturing process.
● Have a strong emphasis on shipping features quickly without sacrificing code quality. Be ready to build a lot of MVPs that will go through iteration or be completely scrapped depending on the outcome at the customer end.
● Lead your own Agile projects and lead the team from software design to implementation and deployment. Maintain sprints, delivery timelines and contribute to better managing the engineering team.
● Transform UI designs and mockups into pages and flows using CSS3 and JavaScript frameworks. Be ready to do the mockups yourself sometimes.
● Build a culture of simplicity and pragmatism, which is reflected in your elegant code that other developers emulate and you ensure through thorough code reviews and processes.
● Have an exceptional understanding of asynchronous request handling, partial page updates, and service workers and command over the internals of JavaScript, React and Redux.
● Continuously evaluate existing engineering processes and recommend improvements.
Required Skills and qualification:
● 4+ years’ experience developing rich UI/Front-end for user-facing web applications.
● Strong experience with React or similar frameworks, TypeScript, SSR (Server Side Rendering), SPA (Single Page Application), PWA (Progressive Web application), OOP (Object Oriented Programming), Reactive programming, and Unit tests.
● Demonstrated ability to function as a project leader as well as an individual contributor.
● Excellent communication and facilitation skills.
Location: WFO in Kolkata, West Bengal (Hybrid)
Benefits:
● ESOPs: 10% of NowPurchase is dedicated to current & future team members. Your package would entail some ESOPs so that you own a part of the company and grow along with it.
● Medical Insurance: Benefits of group insurance of 3 lakhs for family including parents, spouse, children
● Complete Relocation Expenses: We are building a unicorn out of the city of Joy (Kolkata). We will pay for everything you spend to relocate here.
Responsibilities
- Develop new user-facing features
- Build reusable code and libraries for future use
- Ensure the technical feasibility of UI/UX designs
- Optimize application for maximum speed and scalability
- Assure that all user input is validated before submitting to back-end
- Collaborate with other team members and stakeholders
Skills And Qualifications
- Proficient understanding of web markup, including HTML5, CSS3
- Basic understanding of server-side CSS pre-processing platforms, such as LESS and SASS
- Proficient understanding of client-side scripting and JavaScript frameworks, including jQuery
- Good understanding and knowledge of advanced JavaScript libraries and frameworks, such as AngularJS, KnockoutJS, BackboneJS, ReactJS, DurandalJS etc.
- Good understanding of asynchronous request handling, partial page updates, and AJAX
- Basic knowledge of image authoring tools, to be able to crop, resize, or perform small adjustments on an image
- Proficient understanding of cross-browser compatibility issues and ways to work around them.
- Proficient understanding of code versioning tools, such as Git
- Good understanding of SEO principles and ensuring that application will adhere to them
Job Description:
Design skills
Strong working knowledge on various design patterns such as MVC, MVVM, DDD and any custom/hybrid framework as designed by the Architects.
Strong uderstanding in building Single Page Application
Process skills
Built application leveraging Agile DevOps principles and Azure DevOps toolset as part of SCRUM team
Technical skills
- Strong coding and work experience in Front End coding using Angular 8, BackBone, Bootstrap.
- Should have experience on 3rd party tools like PDF.Js (Generate PDF), SheetJS (Export Excel sheet), HighCharts or CharJS (Generate Charts and Graph).
- Should have good understanding of web servers such as IIS and Front-end runtimes using Node.js/NPM.
- Strong debugging skills using browser based Front end application written in Angular 8
- Strong knowledge and understanding of data sharing medium using JSON, XML.
- Should have used IDE such as Visual Studio and Visual Studio Code for Front-end development.
- Create Unit test cases using Jasmine and have all critical flows covered.
- Understanding of MS Build and MS Test as part of Azure DevOps pipelines
- Ability to triage defects in QA, UAT and Production and provide fix with quick turn around time.
Mandatory skills
- 5+ years of building SPA web solutions using Angular 8 , BackBone, Bootstrap
- 5+ years building HTML5 complaint pages
- 3+ years of experience using TypeScript
- 3+ years of writing automated testing using Jamine or others
- 3+ years of using TFS for Build and automated testing
- 1+ years of experience using Security Assessment Tool like Fortify 360 or IBM APP Scan
- 1+ years of experience using code quality assessment tool like SonarQube
- 1+ years of experience using API Management tool like Swagger
- 1+ years of experience on APM tools like DynaTrace
- 1+ years leveraging Azure DevOps
- Understanding of cloud based deployment using containers is plus
- Understanding of JS frameworks like Vue or React is plus
Company Introduction
Juvoxa is a healthtech startup which enables an Integrated channel of pharmaceutical companies, Medical Professionals/ Institutions, and Patients for Digital Prescriptions 2.0. We enable effective dissemination of right information, tools and help in capturing right data at specific points for increased efficacy of the overall care. With Juvoxa, all stakeholders increase engagement, save money, and reduce friction in healthcare systems. This is accomplished in one secure, transparent, and convenient platform. Juvoxa is founded by serial entrepreneurs and funded by Industry professionals.
Job Description // React Frontend Programmer
With major Pharmaceutical companies adopting us for rollout in South East Asia, we are scaling our engineering team.
What you will do
- Implement unit testing, example Junit, to support development of test-driven development
- Write reusable, Testable and efficient code
- Develop new client-side ReactJS components for modern web and mobile applications
- Design scalable frontend architecture
- Improve product quality through code reviews, write effective unit tests and collaborate with Q&A to implement automation testing
- Contribute to open source, write your experiences, mentor others and proactively improve
What you will have
- Strong teamwork, coordination, and planning, self-managed
- Experience working remotely & as part of a distributed engineering team
- Strong problem solving skills are essential.
- English Skills (ability to effectively communicate via written and spoken english).
- Minimum 2 years of software engineering experience in frontend development particularly ReactJS
- Proficiency in web and mobile frontend development; ReactJS, JavaScript, JSON, HTML 5, CSS, LESS, GIT
- Strong knowledge of state management libraries; Redux
- Complete understanding on development of Progressive Web Applications and web workers
- Familiarity with AWS
- Knowledge of Test frameworks like Jest, Mocha, React Testing Library
- Experience with styled-components is desirable
- Exposure to page speed improvement techniques including state management
- Work on automation to actively measure and improve quality and performance of our frontend apps
What we will provide
- Startup-like environment and culture, fast paced and with quick decision-making process
- A unique startup that has both the ability to work directly with senior leadership but also the structure that comes from being founded by Entrepreneurs who have built for scale.
- An environment to be heard, opinion will be valued and you will have the resources to do your best work ever.
- Compensation at par with market plus equities and we are 100% remote for now.
- Life-long learning and supporting the development of the team, including wealth creation
Dear recruitment agencies and recruiters, please note that we choose to recruit directly for this role. You are expressly requested to not contact Juvoxa or any of its employees in relation to this vacancy or with any offers of your services. Thank you.








