

· 12+ years of professional experience in front-end development.
· 7+ years of hands-on experience with React.js and its ecosystem (Redux, Context API, Hooks, etc.)
· Strong understanding of JavaScript (ES6+), HTML5, and CSS3.
· Experience with RESTful APIs, GraphQL, and WebSocket integration.
· Proficiency in modern build tools (Webpack, Vite, Babel, etc.).
· Expertise in state management libraries (Redux, MobX) and React Query.
· Solid understanding of UI/UX principles and responsive design.
· Experience with testing frameworks (Jest, React Testing Library, Cypress, etc.).
· Familiarity with modern CI/CD pipelines and version control tools (Git).

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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Job Title : Lead Web App Developer – Frontend
Experience : 10+ Years
Location : Bengaluru
Work Mode : Hybrid (3 days in office)
Role Overview :
We are seeking a Lead Frontend Engineer to build and maintain responsive, cloud-based web applications. This role involves developing efficient user interfaces using React.js, collaborating closely with UX and backend teams, and ensuring high-quality code.
Key Responsibilities:
- Frontend Development: Create and maintain web applications using React.js, HTML, CSS, and JavaScript/TypeScript.
- Collaboration: Work with UX designers to deliver excellent user experiences and ensure seamless backend integration.
- Code Quality: Write clean, efficient, and maintainable code while staying updated with modern practices.
- Build & Deployment: Manage build pipelines with Jenkins, deploy to CDNs, and leverage GCP for scalable solutions.
- Technical Expertise: Implement JavaScript frameworks and libraries for web analytics and use Git for version control.
Requirements:
Technical Skills:
- Proficiency in React.js, HTML, CSS, JavaScript/TypeScript, and Node.js frameworks.
- Strong debugging and problem-solving skills.
- Exposure to RDBMS and SQL (preferred).
Soft Skills:
- Excellent communication and collaboration abilities.
- Leadership skills to guide and inspire a team of developers.
- Education: Bachelor's/Master’s in Computer Science or related fields.
Notice Period: 30 days preferred
Interview Process:
- Technical Round: Online technical assessment (1 hour).
- Face-to-Face Interview: In-person interview with the team at the Bengaluru office (3 hours).
- Final Round: Online interview with the CEO (30 minutes).
Additional Information:
- Candidates from Bengaluru or willing to relocate are preferred.
- F2F interview attendance on a weekday is mandatory.

JOB SUMMARY
Position - Lead UI
Location - Bangalore.
Take part to the development and the maintenance of the FM SAAS Platform.
- Write technical designs (conception, architecture, data model)
- Maintain/enhance CI/CD processes ( Basic Knowledge is mandatory)
- Develop and maintain the platform
- Support UI developers
- Identify and resolve incidents
- Representing FM in global UI architecture meetings
JOB RESPONSIBILITIES
Customers
Delight our customers by:
- Delivering high quality, bug free software
- Respecting customer commitments
- Respecting UX designs
- Assisting operations (incl. support, delivery and pre-sales) with subject matter expertise when needed
- Providing expected effort to solve customer issues
- Understanding fully the FM Strategy
Teamwork
Work together by:
- Providing a transparent reporting to both the scrum team and the UI team
- Helping other team members to achieve their commitments
- Sharing knowledge
- Driving other UI developers
- Working closely with his/her scrum team
- Working closely with the FM UI team
- Working closely with QA
- Working closely with SRE
- Working closely with the global UI team
- Working closely with the UX team
Innovate
Innovating by:
- Keeping in touch with latest technologies
- Sharing (business/technical) ideas with the team and the management
- Proposing new development tools
- Proposing enhancement to our CI/CD processes
Improve (KPI’s)
Constantly improving by:
- Being proactive and autonomous
- Actively participating to retrospective
- Communicating with other BT UI teams
- Helping others
SKILLS, KNOWLEDGE AND EXPERIENCE REQUIRED
Required Skills
- IT Master’s Degree or equivalent such as Engineering school
- Strong/proven knowledge of Javascript development language
- Strong/proven knowledge of React and its usual ecosystem
- Basic knowledge of Docker
- Strong analytical and algorithmic skills
- Strong communication skills
- Autonomy
- Adaptability
- Team working skills
- Ability to propose and discuss API contract with backend tech leads
- Heightened sense of client service
- Quality and documentation
- Sense of responsibility
- Strong attention to detail
Good to have Skills
- Rigorous, methodical and organized
- Ability to work both independently and within a team
- Knowledge about Single spa
- Knowledge about Kubernetes
- Knowledge about GitLab
- Knowledge about ArgoCD
- Knowledge of SWIFT banking environment would be an advantage
- Knowledge of Open Banking would be an advantage
- Mastery in software engineering tools

Role Overview
As a Senior Frontend Developer, you will be at the forefront of developing high-quality mobile applications using React Native. This role requires a comprehensive understanding of cross-platform development, UI/UX design principles, in-app purchases, and state management. You will work closely with our backend team, designers, and product managers to deliver seamless and responsive applications that meet global market standards.
Key Responsibilities
- Lead the development of mobile applications using React Native, ensuring cross-platform compatibility and responsiveness across devices.
- Collaborate with the design team to implement intuitive and user-friendly UI/UX designs.
- Integrate in-app purchases, Firebase services, dynamic links, and develop custom features to enhance user engagement.
- Manage application state effectively using state management libraries and best practices.
- Oversee the app deployment process, including release management, to the App Store and Google Play Store, ensuring compliance with their guidelines.
- Work with the team to identify and resolve performance issues and optimize application for speed and scalability.
- Work on animations and UX of applications for both IOS and Android.
- Stay updated with the latest trends and technologies in mobile development to continuously improve app functionality and user experience.
Qualifications
- Bachelor's degree in Computer Science, Engineering, or a related field.
- 5+ years of experience in frontend development, with significant experience in React Native and cross-platform mobile app development.
- Strong portfolio demonstrating expertise in UI/UX design and in-app purchases integration.
- Extensive experience with Firebase, including dynamic links and other backend services.
- Proven track record of managing app releases, including deployment to the App Store and Google Play Store.
- Excellent problem-solving skills, attention to detail, and the ability to work in a fast-paced, team-oriented environment.
- Strong communication skills, with proficiency in English.
- Attach the link of mobile application worked on till date
Why Join Us?
- Opportunity to lead a cutting-edge project impacting users globally.
- Work in an environment that fosters innovation, collaboration, and professional growth.
- Competitive compensation, comprehensive benefits.

● Design and develop responsive and visually appealing web applications and user interfaces using HTML, CSS, and JavaScript, React frameworks.
● Collaborate with UX designers, product managers, and software engineers to understand project requirements and translate them into interactive, user-friendly interfaces.
● Ensure the technical feasibility of UI/UX designs and optimise applications for maximum speed and scalability.
● Conduct code reviews and provide constructive feedback to team members, fostering a culture of continuous improvement.
● Stay updated with the latest industry trends, best practices, and emerging technologies in UI development, and recommend their integration to enhance our products.
● Identify and address performance and compatibility issues across different browsers and platforms.
● Champion UI development best practices, standards, and guidelines within the development team.
● Collaborate with backend developers to integrate front-end interfaces with server-side logic and APIs.
● Troubleshoot and debug UI-related issues and provide timely resolutions.
● Mentor junior developers, assisting them in enhancing their skills and knowledge in UI development.
● Write and encourage other engineers to write automated tests.
Skills/ Experience
● Bachelor's degree in Computer Science, Software Engineering, or related field (or equivalent practical experience).
● Proven experience as a UI Developer or Front-End Developer, with at least 3+ years of hands-on experience in building user interfaces for web applications.
● Proficiency in front-end technologies such as TypeScript, Tailwind, React, Redux.
● Strong understanding of responsive design principles.
● Solid knowledge of web performance optimization techniques and best practices.
● Familiarity with Figma and other UI/UX design tools, to collaborate effectively with designers.
● Demonstrated experience in writing UI components to corresponding backend APIs and Databases.
● Excellent problem-solving skills and ability to troubleshoot complex UI-related issues.
● Strong communication and collaboration skills, with the ability to work effectively in a team-oriented environment.

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-
- 3 to 6 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


The Job Overview
We are seeking a dedicated Vue.js front-end developer to join our growing company. You will work as
part of a team to develop fast, well-tested, and performant code for various web and mobile
applications using Vue.js. As a Vue.js front-end developer, you will be expected to work with standard
programming tools such as version control and deployment software, follow industry best practices,
write tests for the code you write, and follow all applicable coding guidelines.
Your duties will include taking part in daily scrums, writing and developing modules for existing Vue
applications, integrating Vue into existing projects, writing code and tests for code, taking part in code
review sessions, and using version control software to push and pull code for testing and deployment.
Responsibilities
Write performant code using core Vue, Vuex, and Vue Router to create websites and web
applications
Create tests for code written by yourself and other web developers, full-stack developers, and
software engineers
Integrate Vue into legacy projects
Diagnose and fix bugs and other software defects in new and existing Vue applications
Run code optimization tools and analyzers to spot and refactor inefficiencies to create highly
performant code
Skill Sets:
Bachelor’s degree or several years of experience in e-commerce, computer science, or other
related fields
Strong understanding of JavaScript and React JS, including the latest revisions of ECMAScript
Good knowledge of the Vue.js framework and related components such as Vuex and Vue Router
Experience with standard tools and services in JavaScript front-end development and software
development, such as Git, GitHub, HTML5, Laravel, Angular, Node.js, and npm
The ability to work as part of a team, taking ownership of individual components and following
coding guidelines to create performant components that fit into more-comprehensive projects
An understanding of advanced JavaScript concepts, such as dealing with asynchronous requests
and dynamic content
Experience with integrating and maintaining external software libraries and APIs using a
command-line interface and package managers

- Build fluid, scalable, responsive, and consumer-centric web platforms that target users across a wide array of devices
- Collaborate closely with designers & backend developers and contribute to the full product development life-cycle from design and development to roll out
Take ownership of work and deliver quality results consistently - Own the delivery of multiple features in a fast-paced work environment
- Build optimized and modular components to provide performance-oriented solutions
- Work in a dynamic and collaborative culture ensuring good teamwork and communication with remote team members when needed
Qualifications
- 4+ Years of experience in frontend web development (1+ in ReactJS)
- Strong past experience of building, scaling and maintaining feature-rich customer-facing single-page applications
- Ability to translate designs into UI elements with accuracy and an eye for fluidity and responsiveness; strong grasp of any of CSS / sass / less
- Proven ability to implement key concepts of state management, security, and caching practices in enterprise-level web applications used at scale
- Proficient understanding of compatibility issues across different browsers and web and mobile devices and available ways to work around them
- Familiarity with the react ecosystem and popular libraries in that ecosystem
- Strong grasp over core web development concepts like HTML5, JavaScript, CSS3, general Web 2.0 techniques, and working without modern component libraries
- Experience with designing secure web applications with a strong understanding of common security vulnerabilities and best practices
- Understanding of data structures, algorithms and object-oriented programming
- Strong grasp over concepts of performance, optimization, lighthouse, etc
- Strong handle over Git, following best practices to facilitate collaboration
Skills that will give you an edge
- Hands-on experience with supporting payments and integrating payment gateways
- Experience with progressive web apps, service workers
- Strong grasp over frontend unit and end-to-end testing frameworks

Front-end Developer
*H1 is a Spanish fin/proptech that revolutionizes the mortgage market by offering bank-risk approved loans before knowing the house an individual wants to purchase. It also offers a powerful selling tool for real estate agents and developers that helps manage their businesses. From there, H1 is building a community of millions of high credit profile users (individuals + companies) that use the credit marketplace technology to access a multiproduct platform (including banking and non-banking capital and multiple financial and credit scoring products) that becomes a financial partner for individuals and companies as well as a personal documentation encrypted storage for all family or group members (SAAS model).
*H1 is the future of digital banking.
*Recently capitalized, and in a strong growth phase to expand nationally and into 5 additional countries.
About the Job:
H1 seeks front-end developers with experience on React, UX and responsive layout for our development team
In this role, you will report directly to the CTO
Agile based organization, with bi-weekly sprints on long-term project
Responsibilities:
- Build an extraordinary tech product (software) from an user centric perspective, for all the different actors involved with the organization and in direct contact with the technology (clients, management, finance, risk/operations team, commercial team, marketing, etc.)
- Working with the CTO to build the roadmap and agile based organization required.
- Receive and react to product feedback from all internal and external stakeholders
- Create and optimize company web applications
- Product KPIs, and product releases on a recurring basis
- Producing reports to monitor level of usability, engagement, etc. (product metrics and analytics)
- Contributing to deliver the expected results from a usability and engagement perspective
About You:
- With strong software product background, and extraordinary capabilities in terms of product strategy development and usability
- 3-6+ years robust experience on developing software products in an agile based organization
- Demonstrated success in bringing new products to market, capturing market share and delivering market leading products and services.
- Clear examples of products managed or developed during his/her career
- Strategic thinking: you are able to think at the strategic level and make the link with the pixel level
- Able to work in a flat and transparent manner within a fast paced environment
- Results oriented
- Academic education in tech/product/digital related careers
- High level english (spoken and written). Spanish at any level would be a great plus.
- Entrepreneurial mindset: Is looking for a very ambitious project. Due to the stage of growth kick-off the upside could be extraordinary (a life-time opportunity)
Skills:
- Great flavour towards software products
- High expertise and excellence on software usability and user experience optimization. Expertise in software design
- Sensitivity towards customers and users
- Data driven decision making
- Deep knowledge of the digital world
- Fintech / Proptech / Digital banking background experience will be very positively considered, but not necessarily needed
- ReactJS on typescript with class and hooks
- Experience with responsive design
- Css with less compiler experience
- Long SPA development using json web tokens security
- AntD library would be a plus
- Experience in working with tech teams, on an agile based style
- Proactive and able to take initiative. Decisive and resolute
- “Out of the box” thinker
- Creative thinker
- Works well in a team and with a wide range of people from different backgrounds and ages
- Organised and methodical
- Succeeds under pressure
- Is able to have fun and keep a positive atmosphere in the team
Location of Headquarters: Madrid, Spain
Tech Hub in India: Office in Bangalore, Karnataka (India). Full tech team between Madrid, Spain + Bangalore, India
This is a unique opportunity to contribute heavily to the growth of an innovative, market-leading Fintech & Proptech company.
Salary Range: 40k-90k Rupees monthly (5 Lakhs - 11 Lakhs per annum)




