

Qualification profile
- Successfully completed studies or training in computer science, focus on software development desirable or comparable qualification
- In-depth knowledge of web technologies: JAVA, HTML5, CSS, Java/TypeScript, and Vue.js, as well as web services/SOA Hibernate and SQL
- In-depth knowledge of React and/or Angular is also an advantage
- Experience with responsive web design and web content management systems
- Fluent in English
- Knowledge of cloud-native development and operation, e.g. B. Docker and Kubernetes advantageous
What we offer you
- Varied, demanding, and interesting field of activity
- Flexible working hours to reconcile work and private life
- Collegial and highly professional team in a modern, international working environment
- Career opportunities here in India or worldwide

About LS Spectrum Solutions Private Limited
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About the firm:
Sustainability lies at the core of Stantech AI, our vision is to empower organizations to derive actionable insights: effecting a smarter way of working. We operate on the premise that each firm is unique and as such requires its own idiosyncratic solutions. Putting this principle into practice, we deliver tailor made solutions to digitalize, optimize, and strategize fundamental processes underpinning organizations. For more information, please refer to our website:
www.stantech.ai.
Position Overview
We are seeking a Senior Frontend Engineer with extensive experience in React.js and Redux. The ideal candidate is well-versed in modern frontend best practices, has a deep understanding of state management, and is passionate about delivering high-quality, scalable software. In this role, you will collaborate with cross-functional teams to design, develop, and maintain user-facing features that enhance our platform and deliver an exceptional user experience.
Key Responsibilities
- Architect & Develop: Lead the design and implementation of complex React.js applications with a strong emphasis on Redux for state management.
- Code Quality & Reviews: Write clean, maintainable, and testable code. Conduct peer code reviews and enforce best practices across the frontend team.
- Performance Optimization: Identify and troubleshoot performance bottlenecks; implement optimizations to ensure fast, responsive user experiences.
- Collaboration: Work closely with product managers, designers, and backend engineers to define technical solutions, estimate project timelines, and deliver high-quality features.
- Technical Leadership: Provide guidance and mentorship to junior engineers, helping them grow their skills in React, Redux, and modern frontend technologies.
- Process Improvement: Contribute to continuous improvements in our frontend development process, coding standards, testing practices, and deployment pipelines.
Qualifications
- React.js Expertise: 3+ years of professional experience in building complex, high-scale React.js applications.
- Redux Mastery: Proven track record of architecting and maintaining global state management solutions using Redux.
- JavaScript & ES6+: Strong command of modern JavaScript (ES6+), along with a solid understanding of HTML and CSS.
- Frontend Best Practices: In-depth knowledge of performance optimization, cross-browser compatibility, and responsive design.
- Testing & Tooling: Hands-on experience with Jest, React Testing Library, or similar frameworks. Familiarity with build tools like Webpack, Babel, and NPM/Yarn.
- Version Control: Proficient with Git and branching strategies in collaborative environments.
Financial Package
- Rs. 10–20 Lakhs per annum, contingent on work experience
If you are a passionate Senior Frontend Engineer with expertise in React JS and are looking to join a forward-thinking technology firm, we would love to hear from you.

Responsibilities
- Interact closely with design, product, and development teams to create elegant, usable, responsive and interactive interfaces across multiple devices.
- Turning UI/UX designs into prototypes, creating excellent 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 the app usage by monitoring key metrics and rectifying the issues proactively.
- Review and Optimize application usage, by monitoring key metrics, for maximum speed and scalability
- Mentoring and guiding the team members.
- An ability to perform well in a fast-paced environment and bring in optimal flow for rapidly changing design/ technology.
Requirements
- 5+ years of relevant work experience as a web developer, UI developer, Angular Developer or front-end engineer.
- Sound knowledge in HTML, CSS & JavaScript.
- Familiar with UI layouts, SASS, Bootstrap, and the CSS GRID system
- Proficient with Typescript (Angular 2 & above)
- Thorough understanding of the responsibilities of the platform, database, API, caching layer, proxies, and other web services used in the system.
- Passionate to create good design and usability
- A team player with excellent communication skills

About Plum
We are making health insurance - simple, accessible and affordable. Hundreds of businesses of all sizes from startups to large corporates trust Plum for their employee's health protection.
Healthcare in India is seeing a phenomenal shift. Healthcare cost is seeing an inflation that is three times the general inflation. Treatments of diseases including Covid-19 can wipe out entire household savings. Majority of Indians won't be able to afford a health insurance on their own. As many as 600mn Indians would depend on employer-sponsored insurance.
Enter Plum. Plum is re-imagining the health insurance stack, and accelerating the penetration of health insurance in India to 100%. Plum has forged new underwriting and fraud detection algorithms to enable companies as small as 2 to benefit from a group insurance. The platform enables realtime insurance design & pricing to enable companies to buy insurance in 3-clicks. And offers employees a hassle-free claims experience through an integrated digital process.
Plum is backed by leading global investors including Tiger Global, Sequoia Capital, Tanglin Ventures and Incubate Fund (read more https://www.plumhq.com/blog/plum-series-a-funding">here)
About the role
Having found exceptional product/market fit, we’re in the midst of transitioning from 'start-up' to ‘scale-up’, and looking for a senior frontend engineer to help us scale Plum, and spearhead the frontend of our product.
You will have a direct impact on the customer experience through the design and implementation of new features and functionalities in our product. You'll work as part of a small but rapidly growing high-energy team delivering incredible, creative improvements to our product. You'll be in charge of reviewing the implementation of applications following code standards and style guides. You would analyze and build UI Pattern Libraries (Design Systems, UI Kits, etc.)
Roles and Responsibilities:
- Spec, build, test, and deliver new features while improving the performance and quality of the product.
- Run test-harness to guarantee the structure, integrity, and design of the application.
- Solve complex CSS, HTML, and User Interface compatibility issues across browsers.
- Optimize JavaScript implementations to ensure that code remains performant.
- Implement front-end development workflows: build systems, dependency management, quality checkers (linting), etc.
- Ability to push things over the line, ship awesome features, and delight customers.
Experience and Qualifications:
- 2+ years of hands-on experience building web applications with JavaScript, HTML5, and CSS.
- Comfortable with Responsive Web Design and Development and weave out beautiful code in React.
- Strong product and design sensibilities and has an obsessive attention to detail.
- Write testable, maintainable code that's easy to understand.
- Understand complex problems and break them down into smaller tasks.
- Strong sense of ownership and integrity demonstrated through clear communication and collaboration.

Job Description
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. Therefore, a commitment to collaborative problem solving, sophisticated design, and quality product is important.
Responsibilities
-
Developing new user-facing features using React.js
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Building reusable components and front-end libraries for future use
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Translating designs and wireframes into high quality code
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Optimizing components for maximum performance across a vast array of web-capable devices and browsers

Who are we?
Whatfix is the #1 Digital Adoption Platform (DAP) for Enterprises. We are disrupting the way Learning, Training and Application Support content is consumed. We provide large enterprises with a SaaS platform that helps accelerate product adoption and reduce support & training efforts by providing contextual and step by step guidance inside any web application at the exact time a task is being performed. The product has redefined the way companies onboard, train, and provide support to users.
What sets us apart from the rest?
With over 100 of the Fortune 500 companies already onboard as customers, Whatfix has been named among the top 20 B2B tech companies alongside the likes of Adobe, PayPal, and Cisco.
With a YoY growth of 300%, we have also been recognized among the top 50 fastest growing SaaS companies worldwide in the SaaS 1000 list and as a Market Leader by Gartner in the Digital Adoption space.
We are pleased to have an Employee rating of 4.6 on https://www.glassdoor.co.in/Reviews/Whatfix-Reviews-E1016569.htm" target="_blank">Glassdoor and our Customer obsession can be seen in our reviews on platforms like https://www.g2.com/products/whatfix/reviews" target="_blank">G2 Crowd & https://www.gartner.com/reviews/market/customer-communications-management-software/vendor/whatfix/product/whatfix" target="_blank">Gartner Peer Insights.
The employees are happy, the customers are happy, but what about the investors? Take a look for yourself - http://www.sequoiacap.com/" target="_blank">Sequoia Capital || http://www.stellarisvp.com/whatfix-what-we-learnt-from-series-a-to-series-b-in-a-saas-business/" target="_blank">Stellaris || https://blogs.cisco.com/innovation/tomorrows-customer-experience-why-cisco-invested-in-whatfix" target="_blank">Cisco || https://eightroads.com/en/news/our-investment-in-whatfix" target="_blank">Eight Roads || http://www.helionvc.com/blog/we-are-pleased-collaborate-whatfix.html" target="_blank">Helion Ventures
“Hustle Mode ON” is something we live by.
Our Team:
The Engineering team at Whatfix provides end-to-end engineering throughput that forms part of core platforms and services that drive Whatfix's business.
Our team is responsible for creating the Customer Platform and everything around it - be it Analytics, Infrastructure, or Core Algorithms. The team owns and is responsible for all pieces that we design, build and support end to end for Whatfix product/ business.
Our product is built around a core of JAVA with enterprise businesses using the Whatfix system. On a monthly basis, millions of interactive guides are processed. Building, testing, and deploying to any of our environments are as simple as pushing a commit to a git branch. We like to keep our technology up-to-date. All of the technology is built and maintained by this small development team, so from day 1, the software you write will be used by people from all over the world.
RESPONSIBILITIES:
- Design and develop highly scalable, reliable, and fault-tolerant systems for one of the world’s fastest-growing startups
- Work with business to define requirements
- Perform technical design and hands-on coding for development and enhancement efforts
- Develop new user-facing features
- Building reusable code and libraries for future use
- Ensure the technical feasibility of UI/UX designs
- Optimize applications for maximum speed and scalability
- Assure that all user input is validated before submitting to back-end services
- Promote best practices in design and coding
- Conduct design and code reviews
- Understand the customer needs & implement
- Articulate complex problems communicating viable architecture and design approaches in a clear and concise manner
- Enhance the agile SDLC within the Development Team through new learning, continued growth, and applying industry best practices and processes
- Occasionally participate in customer demos & provide inputs wherever required
- Keep optimizing & automating mundane tasks
You'll be a core member of the team.
Individual growth is important to us. We schedule time every week to explore an interest or learn something new. Team members have also used it to do everything from learning new algorithms to playing with the new framework, to exploring what the new analytics layer could be used for. We also take some time each day to discuss what we're working on, and even pair programs to teach each other about parts of the codebase. There's no risk of stagnation in this job, you would still be hands-on after a few years.
REQUIREMENTS:
We are looking for a Front-End Engineer to help us scale and go deep on our technical capabilities.
- 4 -12 years of professional front-end development experience
- Hands-on experience with Front end technologies - JavaScript, Typescript, HTML, CSS
- Experience with React Ecosystem (React Router, Styled-components, Server-side rendering, Context API, React Hooks) is strongly preferred
- Experience with state management libraries such as Redux is a huge plus.
- Proficient understanding of cross-browser compatibility issues and ways to work around such issues
- Experience in backend programming languages such as Java is strongly preferred
- Experience in building Web applications using frameworks like Spring, Microservice architecture
- Work experience, preferably from internet companies, products, or startups
- Expertise in design principles and their application
- Strong verbal and written communication skills
- Fast Learner & a Team Player
We are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.



1. Strong knowledge in Front end scripting like EJS, JavaScript, Jquery
2. Proficiency with fundamental front-end languages such as HTML, CSS.
3. Familiarity with JavaScript frameworks such as Angular JS, React, and Amber.
4. Proficiency with server-side languages such as Python / Ruby / Java / PHP/ .Net
5. Good Understand with database technology such as MySQL, Oracle, and MongoDB.

Roles & Responsibilities:
- 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.
React.js Developer Requirements:
- 1-3 Years Previous experience working as a React.js Developer.
- In-depth knowledge of JavaScript, CSS3, HTML5, bootstrap and material design.
- Knowledge of REACT tools including React.js, Webpack, Enzyme, Redux, and Flux.
- Experience in Next.js, Ant design, Node.js and Python will add extra advantage but not mandatory
- Experience with user interface design.
- Knowledge of performance testing frameworks including Mocha and Jest.
- Experience with browser-based debugging and performance testing software.
- Excellent troubleshooting skills.


- Building abstractions and contracts with separation of concerns for a larger scope.
- Building pixel-perfect, robust and, accessible user interfaces on the web
- Not just building new features, but also building reusable components and libraries which help in delivering faster.
- Taking responsibility of quality and making things easy and predictable by automating these processes
- Exploring and designing dynamic and compelling consumer experiences.
- Working closely with designers to implement versatile front-end solutions while embracing emerging standards and pushing the limits of what a browser can do.
- Actively participating in design and code reviews to build robust applications and prototypes.
- Interacting with other team members to passionately collaborate in building a rich and innovative user experience
- Analyzing system function and performance requirements to support design concepts.
- Mentoring new members, interviewing and helping in building high performance teams.
What you need to have:
- B.E/ B.Tech or M.S in Computer Science or related technical field
- 3+ years of experience and must be hands-on with coding.
- Ability to work with complex business flows
- Excellent problem-solving, coupled with strong communication skills, and a sense of ownership and drive.
- Experience building pixel-perfect, robust and, accessible user interfaces on the web
- Experience in Single Page Application architecture
- Proficient in at least one JavaScript framework like Angular, React or equivalent
- Experience with CSS3 and Less/ Sass (ability to write mixins, partials, functions, etc) and usage in large scale applications
- Experience in web analytics, accessibility, standards, and SEO techniques
- Expertise in front-end design and JavaScript libraries such as AngularJS, ReactJS and jQuery.
- Passion for building a rich and innovative user experience
- Strong computer science fundamentals in design, data structures, and problem solving



- You’ve got good experience working on web applications
- You have a clear knowledge and hands-on with ES6+ and you know AngularJS, Vue or React/React-Native
- Advanced knowledge in AngularJS, VueJS and CSS with material design styles guide
- Basic knowledge of NodeJS
- Basic understanding on Progressive Web Applications will be well appreciated
- Advanced knowledge in WebPack and other basic tools to work with Javascript nowadays (Git, npm, etc ...)
- Knowledge and experience in the development of unit tests for VueJS (no matter the library or framework)
- Good Knowledge on Optimizing performance and browser compatibility is always at the top of your mind
Skills Required:
VueJS, AngularJS, ReactJS, NodeJs, Webpack, CSS, HTML5

