
Experience: 5-10 years experience
Location: Bangalore
Required Skills and Experience:
- 5-10 years of experience in front-end development, with a strong focus on React.js.
- Proven experience with React.js and related technologies (e.g., Redux, React Router, Hooks, Context API).
- Strong proficiency in JavaScript, HTML5, CSS3, and modern front-end build tools (e.g., Webpack, Babel, etc.).
- Hands-on experience with RESTful APIs, Server Sent Events, WebSockets
- Hand’s on experience with web components, microfrontends
- Deep understanding of browser apis like history, intersectionobserver, event handling, virtual panes, drag and drop etc
- Ability to work on a complex and fast moving code base.
- Familiarity with TypeScript and its integration with React applications.
- Strong problem-solving skills and attention to detail.

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.
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JOB DESCRIPTION FOR FRONTEND DEVELOPER ROLE
Company Overview
Boolment Software Development Pvt. Ltd. is a fast-growing technology company delivering innovative software solutions across diverse industries. Our mission is to empower businesses through scalable and high-quality technology products. We foster a culture of innovation, collaboration, and continuous learning, providing employees with opportunities to work on cutting-edge technologies and projects.
Job Title : Front Developer
Department: Software Development
Location: Gurgaon, Haryana
Employment Type: Full-Time / Internship (3 months)
Working Mode: On-site
Shifts: 6 Day (9:30 AM – 6:30 PM)
Reporting To: Manager
Vacancies: 3–5
Experience: 0–3 years (Freshers eligible)
Salary Range: ₹3 LPA – ₹6.5 LPA | Internship Stipend: ₹0–₹15,000/month
Job Summary
We are seeking a skilled Frontend Developer to join our dynamic team. The ideal candidate will be responsible for designing, developing, and maintaining responsive and high-performance web applications. You will work closely with UX/UI designers, backend developers, and product teams to deliver exceptional user experiences.
Key Responsibilities
UI/UX Implementation:
- Implement modern, responsive, and interactive user interfaces based on wireframes, mockups, and prototypes.
- Collaborate with UX/UI designers to translate designs into functional and visually compelling interfaces.
- Ensure web accessibility and usability best practices.
Frontend Development:
- Develop scalable, maintainable, and reusable components using modern JavaScript frameworks and tools such as Angular, Bootstrap, and Thymeleaf and JSP (JavaServer Pages).
- Write clean, modular, and efficient code in HTML5, CSS3, JavaScript (ES6+), and jQuery.
- Use CSS Preprocessors such as SASS, LESS, and CSS methodologies like BEM for maintainable styling.
- Work with JSP (Java Server Pages) and Thymeleaf templates to integrate frontend interfaces with backend systems.
- Optimize applications for speed, responsiveness, and overall performance across devices.
- Implement lazy loading, bundling, and code-splitting for enhanced performance.
- Integrate frontend components with backend services via RESTful APIs.
- Perform cross-browser and cross-device testing to ensure consistent UI.
- Participate in code reviews, provide constructive feedback, and follow version control best practices using Git.
- Ensure cross-browser and cross-device compatibility across web and mobile platforms.
- Collaborate with cross-functional teams to deliver innovative and high-quality web solutions.
- Contribute documentation, reusable components, and design systems for long-term maintainability.
Testing & Debugging:
- Write unit and integration tests for frontend components.
- Debug and resolve performance and compatibility issues.
Continuous Learning & Innovation:
- Stay up-to-date with the latest trends in front-end development, frameworks, and web technologies.
- Recommend new tools, libraries, and approaches to improve development efficiency and user experience.
Must-Have Skills
- Core Frontend: HTML5, CSS3, JavaScript (ES6+), jQuery
- Frontend Frameworks/Libraries: Bootstrap, Angular, JSP, Thymeleaf
- CSS Preprocessors & Methodologies: SASS, LESS, Tailwind CSS, BEM
- Responsive & Mobile Design: Media Queries, Flexbox, Grid, Mobile-First Design
- APIs & Data Handling: RESTful Services
- Version Control & Collaboration: Git, GitHub/GitLab/Bitbucket, Branching & Merging Strategies
- Frontend Testing & Debugging: Jest, Chrome DevTools
- Problem-Solving & Analytical Skills: Debugging UI issues, optimizing performance, identifying bottlenecks
- Cross-Browser & Cross-Device Testing: BrowserStack, Lighthouse
Good-to-Have Skills / Trending Skills:
- TypeScript for type-safe JavaScript development.
- UI libraries/frameworks like Tailwind CSS, Material-UI.
- Testing frameworks such as Jest, Cypress, or Selenium.
- Experience with CI/CD pipelines and cloud deployments.
- Knowledge of micro-frontends architecture or modern web development trends.
Qualification & Soft Skills
- B.Tech / BE / MCA / Equivalent degree in Computer Science, IT, or related field.
- Strong verbal and written communication skills.
- Ability to explain technical concepts to non-technical stakeholders.
- Collaborative, adaptable, and open to learning.
- Attention to detail with a creative problem-solving mindset.
Compensation & Benefits
- Competitive salary (based on experience).
- Health & Medical Insurance, Gratuity, and Retirement Benefits.
- Paid Leaves, Travel Reimbursements, and Performance Bonuses.
- Access to training programs, certifications, and mentorship.
- Cross-functional exposure and opportunities for career growth and advancement.
Profile: React.js
Location: Andheri East, Mumbai
Experience Required: 3+ Years
Employment Type: Full-time
Required Skills & Qualifications
- Experience: Minimum 3+ years of professional experience in React.js development
- Core Technologies:Strong proficiency in JavaScript (ES6+)
- Extensive experience with React.js and its ecosystem
- Solid understanding of HTML5, CSS3, and responsive design
- Experience with state management libraries (Redux, Context API)
- Knowledge of modern build tools (Webpack, Vite, etc.)
- Familiarity with version control systems (Git)
- Technical Skills:Understanding of RESTful API integration
- Experience with testing frameworks (Jest, React Testing Library)
- Knowledge of modern CSS frameworks (Bootstrap, Material-UI, Tailwind CSS)
- Familiarity with TypeScript is a plus
- Understanding of performance optimization techniques
Position Overview:
We are seeking a skilled Software Developer with a focus on Front-End Development with Strong proficiency in HTML, JavaScript, CSS, Sass, Bootstrap and modern JavaScript frameworks including ReactJS and jQuery to join our team. The successful candidate will be responsible for writing clean, efficient, and maintainable code that enhances workflow organization and automates various internal processes within the organization. The role involves continuous improvement of our software solutions to save man-hours and ensure overall organizational efficiency. Key tasks include development, testing, debugging, troubleshooting, and maintenance of both new and existing programs.
Key responsibilities:
1) Software Development: Write clean, efficient, and maintainable code/flows that automate internal processes and improve workflow efficiency.
2) Testing and Maintenance: Perform testing, debugging, troubleshooting, and daily maintenance of created or integrated programs.
3) UI/UX Development and Design: Design and develop intuitive and visually appealing user interfaces in the software.
4) Web Services Integration: Integrate UI with web services to ensure seamless functionality.
5) Adherence to Standards: Follow preferred development methodologies and adhere to organizational development standards.
6) Collaboration: To work closely with other team members to ensure the successful implementation of projects. Maintain clear and concise documentation of code, APIs, and software components to aid in knowledge sharing and future development.
7) Stay Current: Keep up to date with the latest developments in the Frond end development ecosystem and engage in best practices of software engineering.
- As a lead engineer, you will be expected to execute and deliver large and complex projects end-to-end, with or without the involvement of other team members.
- Participate in code reviews, app architecture, and design discussions.
- Ensuring timely delivery of all product deliverables.
- Be the go-to person for the team for guidance and troubleshooting.
- Mentoring junior developers and set best practices for coding, reviews, etc.
- Ensuring performance and scalability in all new product features being developed.
You need to have:
- Overall of 5+ years expertise in writing HTML/CSS/JavaScript
- Experience in Angular and preferably React.js
- Expertise in database modeling, preferably relational DB, spotting DB bottlenecks, and writing optimized DB queries.
- Expertise in all common AWS cloud technologies, knowledge of CI/CD tools, and workflows.
Work Responsibilities
- What You’ll Do:
- Engineers will develop and improve features for products such as WebView pages called from within Mercari’s web version and native app, along with tools used by the Customer Support Team for answering user inquiries and providing transaction support.
- Senior engineers in the Frontend Team are expected to use their technical skills to lead the team and product development, train members through design and code reviews, and make contributions and improvements to the hiring process, including technical tests.
- Development Environment:
- Languages: HTML, CSS, JavaScript, TypeScript, React, Gatsby, Next.js, GraphQL, Apollo Client, Redux, Cypress, Rendertron, Lit, Playwright
- Infrastructures: Google Cloud Platform (Compute Engine, Kubernetes Engine, App Engine)
- Configuration management tool: Terraform
- Other: Circle CI, GitHub, Slack, JIRA, Crowi, Spinnaker, Datadog
Minimum Requirements
- Shared understanding and belief in Mercari Group's mission and values
- At least 3 years of experience in development related to frontend fields such as web browsers, JavaScript, TypeScript, React.js, Next.js, or Redux
- Experience with developing and operating large-scale products
- Ability to design and develop with performance and scalability in mind
- Ability to use HTML and CSS to implement solid user interfaces
- Knowledge of JavaScript and experience developing with UI libraries or frameworks such as React, Vue.js, and Angular
- Able to understand and explain web operation principles and browsers
- Understanding of version management and ability to participate in development via Git
- Effective communication skills, needed for product development with team members and with other teams
Preferred Requirements
- Extensive knowledge of standard web technologies and specialized knowledge in some areas, like TypeScript, React.js, Next.js, Redux
- Understanding of the characteristics of different libraries/frameworks and the ability to introduce them to projects where necessary
- Ability to design architecture based on the characteristics of the app
- Ability to consistently take initiative in implementing improvements to the app
- Project management and/or team leadership
- Cloud development experience (preferably GCP or AWS)
- Experience contributing to an open-source project
- Familiarity with CI systems and the release process
Working Conditions
Employment Status
Full-time
Office
Bangalore
- Hybrid Workstyle
- Working 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.
- Implementing UI development principles to ensure that the product client-side servers at scale.
- Reviewing and optimizing usage by monitoring key metrics and rectifying the issues proactively.
- Performing well in a fast-paced environment and bring in optimal flow for rapidly changing design / technology.
What you need to have:
- B.Tech / B.E.; M.Tech; MBA / PGDM; MCA
- 3 to 4 years of relevant work experience as a web developer, UI developer, JavaScript expert, or frontend engineer
- Sound knowledge in Javascript, Typescript, ReactJs, NextJs, Gatsby, HTML, CSS
- Familiar with UI layouts, SASS, bootstrap, and the CSS GRID system
- Understanding of REST API, GraphQL
- Understanding of web sockets
- Must have used TDD frameworks mocha, chai, jest et
- Proficient with JavaScript frameworks such as jQuery, Angular et al
- Experience debugging using popular JavaScript-based tools like Chrome Developer Console
- Passionate to create good design and usability
- A team player with good communication skills
Roles and Responsibilities :
- Lead the delivery of high quality, innovative, flexible, cost-optimized, and scalable technical solutions that meet business requirements
- Design, Develop, test, and maintain software applications with MVC architectures, Microservices, and scalable cloud-native apps.
- Perform hands-on coding and provide thoughtful code reviews
- Mentor and lead team members to continuously improve quality and productivity of deliverables
- Demonstrate ability to work within an agile team as well as collaborate with many other teams on design and implementation strategies. Follow SCRUM Agile Development methodology
- Effective Communication Skills- An ability to express your ideas to the recipient & Co-ordinate and communicate with cross-functional team along with the client's team
- Problem Solving, Hustler - Get Stuff Done, Self-Disciplined Open-minded, User-Focused, Adaptive
- Lean Principles & Analytical Thinking
- Project planning, timelines, and milestones for execution and deliverables
- Participate in the Evaluation Review of your team member
Primary Skills
- Experience in building an enterprise web application using ReactJS as the frontend framework
- Experience with Redux and React Hooks
- Expert in HTML5, CSS3
- Experience in Bootstrap4 or CSS pre-processor like Less or Sass is highly desirable
- Strong knowledge of best practices and modern web design trends is necessary.
- Some experience with modern web-based typography.
- Excel at rapid prototyping and at writing good code.
- Experience with testing/debugging in multiple browsers and platforms.
- Expertise in using JavaScript
- Should have worked on REST client and WebSockets
- Should be able to write Unit testing using any one of the frameworks like Cypress, Jasmine, Karma, Jest, Enzyme, or any other similar framework.
- Should have experience in either one of the Build scripts like Gulp or Grunt or Webpack
- Low-Latency UI, Page optimization, and bundle build+caching
- Problem-solving and debugging skills
- Component-based architecture
SENIOR ENGINEER - FRONT END
Experience in years: 3+. Less than 7.
Type: Individual contributor with good hands on proficiency.
Specifics:
- Writing HTML, CSS, and JavaScript. Being up on latest practices is a must, e.g., HTML5, CSS3, and ECMAScript 6 (minimum)
- Familiarity with a relevant and globally supported framework— both front-end and back-end, if necessary — React & React Native.
- Ideally, familiarity with CSS preprocessors, bundlers, and associated languages/syntaxes/libraries - Sass, Less, webpack
- Experience implementing testing platforms and unit tests
- Integrating front-end UI with the constructed API, using REST, GraphQL api
Soft skills:
- Appreciation for clean and well documented code
What you will do at Tradyl
- Partner with a highly skilled external consultancy and lead the effort of building a new modern front end to our website.
- We use a no code platform for rapid development in this phase of our Journey. You will develop features on this platform. This might involve integration with back end APIs via REST.
- Do short experiments: Example, Evaluate a backend headless commerce software as a potential candidate for our backend tech stack.










