
Core responsibilities
• Collaborate with product teams to more accurately define new features
• Collaborate with UX in the building of a design system/component library
• Ensure high performance of all systems developed
• Aware of the relationship between development and business with a strong sense of ownership
• Employ the latest techniques such as agile software development
• Good knowledge of highly scalable server-side development
• Basic working knowledge of Unix/Linux
• Excellent problem solving and coding skills in Javascript/Angular
• Strong interpersonal, communication and analytical skills
• Should have the ability to express their design ideas and thoughts
Job Brief
• JavaScript and angular expertise
• Experience with libraries such as bootstrap, Ag-grid, formly, observables, and ngrx
• You enjoy working with new technologies, and are curious and energetic
• Experience working with REST APIs
• Good understanding about authentication and security
• Create and maintain various unit and integration tests
• You enjoy working in a creative and agile environment that moves fast
• Ability and interest in providing mentorship to junior members of the team
• Write high quality code and Conduct code reviews
• Being resourceful and detail-oriented, along with being an outside the box thinker!
• Experience being a great team player, who work collaborative, and brings a positive attitude
Company Profile:
Website : www.wissen.com
Wissen Thought leadership : https://www.wissen.com/articles/
https://www.youtube.com/watch?v=H_rLmHvlOKg
Employee Speak: https://www.ambitionbox.com/overview/wissen-technology-overview
LinkedIn: https://www.linkedin.com/company/wissen-technology
Wissen | Driving Digital Transformation
A technology consultancy that drives digital innovation by connecting strategy and execution, helping global clients to strengthen their core technology.

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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We are seeking a highly skilled React JS Developer with exceptional DOM manipulation expertise and real-time data handling experience to join our team. You'll be building and optimizing high-performance user interfaces for stock market trading applications where milliseconds matter and data flows continuously.
The ideal candidate thrives in fast-paced environments, understands the intricacies of browser performance, and has hands-on experience with WebSockets and real-time data streaming architectures.
Key Responsibilities
Core Development
- Advanced DOM Operations: Implement complex, performance-optimized DOM manipulations for real-time trading interfaces
- Real-time Data Management: Build robust WebSocket connections and handle high-frequency data streams with minimal latency
- Performance Engineering: Create lightning-fast, scalable front-end applications that process thousands of market updates per second
- Custom Component Architecture: Design and build reusable, high-performance React components optimized for trading workflows
Collaboration & Integration
- Work closely with traders, quants, and backend developers to translate complex trading requirements into intuitive interfaces
- Collaborate with UX/UI designers and product managers to create responsive, trader-focused experiences
- Integrate with real-time market data APIs and trading execution systems
Technical Excellence
- Implement sophisticated data visualizations and interactive charts using libraries like Chartjs, TradingView, or custom D3.js solutions
- Ensure cross-browser compatibility and responsiveness across multiple devices and screen sizes
- Debug and resolve complex performance issues, particularly in real-time data processing and rendering
- Maintain high-quality code through reviews, testing, and comprehensive documentation
Required Skills & Experience
React & JavaScript Mastery
- 5+ years of professional React.js development with deep understanding of React internals, hooks, and advanced patterns
- Expert-level JavaScript (ES6+) with strong proficiency in asynchronous programming, closures, and memory management
- Advanced HTML5 & CSS3 skills with focus on performance and cross-browser compatibility
Real-time & Performance Expertise
- Proven experience with WebSockets and real-time data streaming protocols
- Strong DOM manipulation skills - direct DOM access, virtual scrolling, efficient updates, and performance optimization
- RESTful API integration with experience in handling high-frequency data feeds
- Browser performance optimization - understanding of rendering pipeline, memory management, and profiling tools
Development Tools & Practices
- Proficiency with modern build tools: Webpack, Babel, Vite, or similar
- Experience with Git version control and collaborative development workflows
- Agile/Scrum development environment experience
- Understanding of testing frameworks (Jest, React Testing Library)
Financial Data Visualization
- Experience with financial charting libraries: Chartjs, TradingView, D3.js, or custom visualization solutions
- Understanding of market data structures, order books, and trading terminology
- Knowledge of data streaming optimization techniques for financial applications
Nice-to-Have Skills
Domain Expertise
- Prior experience in stock market, trading, or financial services - understanding of trading workflows, order management, risk systems
- Algorithmic trading knowledge or exposure to quantitative trading systems
- Financial market understanding - equities, derivatives, commodities
Technical Plus Points
- Backend development experience with GoLang, Python, or Node.js
- Database knowledge: SQL, NoSQL, time-series databases (InfluxDB, TimescaleDB)
- Cloud platform experience: AWS, Azure, GCP for deploying scalable applications
- Message queue systems: Redis, RabbitMQ, Kafka, NATS for real-time data processing
- Microservices architecture understanding and API design principles
Advanced Skills
- Service Worker implementation for offline-first applications
- Progressive Web App (PWA) development
- Mobile-first responsive design expertise
Qualifications
- Bachelor's degree in Computer Science, Engineering, or related field (or equivalent professional experience)
- 5+ years of professional React.js development with demonstrable experience in performance-critical applications
- Portfolio or examples of complex real-time applications you've built
- Financial services experience strongly preferred
Why You'll Love Working Here
We're a team that hustles—plain and simple. But we also believe life outside work matters. No cubicles, no suits—just great people doing great work in a space built for comfort and creativity.
What We Offer
💰 Competitive salary – Get paid what you're worth
🌴 Generous paid time off – Recharge and come back sharper
🌍 Work with the best – Collaborate with top-tier global talent
✈️ Adventure together – Annual offsites (mostly outside India) and regular team outings
🎯 Performance rewards – Multiple bonuses for those who go above and beyond
🏥 Health covered – Comprehensive insurance so you're always protected
⚡ Fun, not just work – On-site sports, games, and a lively workspace
🧠 Learn and lead – Regular knowledge-sharing sessions led by your peers
📚 Annual Education Stipend – Take any external course, bootcamp, or certification that makes you better at your craft
🏋️ Stay fit – Gym memberships with equal employer contribution to keep you at your best
🚚 Relocation support – Smooth move? We've got your back
🏆 Friendly competition – Work challenges and extracurricular contests to keep things exciting
We work hard, play hard, and grow together. Join us.
At Sudoviz, you will work closely with Product Management, Frontend, Backend engineers, and Data scientists that work hard to ensure that Sudoviz's products and platforms are helping our customer's most pressing security problems through intuitive and creative UI solutions.
You will develop secure, and well-tested, and performant features.
As a UI Rockstar, you will craft and code our internal standards for style, maintainability and document best practices for a high-scale web environment. You will maintain and advocate standards through peer code review while consistently shipping incremental features and improvements with minimal guidance.
You will own end-to-end delivery of product features, learn, collaborate and help train other Frontend Engineers joining the team.
Frontend Developer Responsibilities:
- Outstanding Professional experience with React, VueJS, and other modern JavaScript web frameworks such as Angular, Ember, etc
- Experience with writing automated tests using Jest, Karma, Jasmine, Mocha, AVA, tape, etc
- A solid understanding of JavaScript
- Core web and browser concepts (eg. how browsers work? how the rendering engine constructs a website page
- Reviewing application requirements and interface designs.
- Identifying web-based user interactions.
- Experience with user interface design
- Developing and implementing highly responsive user interface components using React concepts.
- Developing and implementing frontend architecture to support user interface concepts.
- Design an architecture to support complex data labeling and filtering from multiple sources
- Research how to optimally model and display multidimensional data (e.g. D3 graphs and complex tables)
- Build a framework to support a user-friendly querying language
- Build a comprehensive UI dashboard from the ground up
- Team player - collaborate with Product Designers and Product Managers in order to develop an incredible user experience
Must have
- Excellent communication and documentation skills
- Bachelor's degree in Computer Science
- Good project management skills
- In-depth knowledge of JavaScript, CSS, HTML, and frontend languages.
- Knowledge of REACT tools Webpack, Enzyme, Redux, and Flux.
- Knowledge of performance testing frameworks, including Mocha and Jest.
- Experience with browser-based debugging and performance testing software
Nice to have
- Master's in Computer Science or equivalent/similar
- Monitoring and improving frontend performance.
- Experience in peak performance organizations/product companies
- Experience working with a remote team with a global culturally diverse team
- Passion for open source
Communication
- Proficiency in Written and Verbal communication for success in a remote asynchronous collaboration work environment
- Clearly and concisely communicate about complex technical, architectural problems
Mindset
- Positive solution-oriented mindset with demonstrated ability to onboard and integrate with an organization long-term
- Ability to achieve consensus with peers and clearly share status updates
- Self-motivated and Self managing individual with excellent organizational skills
About the position
We're looking for an experienced and motivated Frontend Developer to join our growing Engineering department. As a Frontend developer you will work closely with the founding team on building an exciting and unique new AppSec management tool. The ideal candidate will be able to work both independently and in a team, collaborating with other team members in product, UX/UI and R&D. It’s a great opportunity to join at an early stage and help shape the future of Application Security Posture Management.
Requirements:
- At least 3 years of experience in web development
- Expert-level JavaScript skills
- Advanced experience with React and Redux
•Design, code, document, and test software in React & Redux/ JavaScript/Node.js, HTML, and
CSS /PHP.
• Demonstrate expertise in software design patterns, with a passion for developing clean and
reusable code.
• Show thought leadership by mentoring and assisting tech/non-tech staff within the Namshi
Group.
• Take ownership of software development aspects, such as architectural discussions, sprint
planning, quality of
product and code, and user experience.
• Collaborate with other talented engineers spread across a multitude of tech teams.
• Demonstrate expertise in software design patterns, with a passion for developing clean and reusable
code
•Strong Computer Science fundamentals like Data Structures, Algorithms, Time Complexity, and
others
• High level understanding of system design and DB design
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
- Good Experience in Next.js
- 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)
- 5+ years of relevant experience as an individual contributor working on the frontend technologies
- Strong technical foundation and experience building user interfaces for complex applications.
- Deep proficiency in JavaScript, including DOM manipulation and the JavaScript object model
- Thorough understanding of React.js core principles and experience with latest React concepts like hooks, context APIs
- Experience with popular state management libraries like Redux, Flux
- Familiarity with newer specifications of ECMAScript and knowledge of modern authorization mechanisms, such as JSON Web Token
- Experience with common front-end build tools such as Babel, Webpack, NPM, etc.
- Familiarity with Git
- Hands on experience with markup languages
- Background contributing best-practices and architectural leadership to front end applications
- Demonstrable understanding, and experience in dismantling large, abstract problems into smaller, workable tasks.
- Strong interpersonal skills with the ability to effectively collaborate cross functionally with designers, product managers and other engineers.

- Work with creative and business partners to understand, build, and adjust web application functionality and visual presentation to support business goals
- Develop reusable, maintainable, accessible cross-platform HTML, CSS, and JavaScript for front end web application components while adhering to web and team standards
- Working in an AT/CI/CD paradigm develops with testing in mind; authors unit tests to provide sufficient testing coverage for each developed component
- Identifies opportunities to optimize and improve front end performance
- Remain curious and current with new developments in front end web development industry
Qualifications
- 0-2 years of practical front-end web development experience in writing and testing valid, web standards-based HTML, CSS, JS
- Understanding of basics of computer science such as Object-Oriented Programming, Data Structures, Development Patterns
- Good experience in front end development with both technical and visual expertise
- Some exposure to agile methodologies and supporting practices, tools, and technology
- Comfortable learning new technologies, tools, development/CI/CD processes, and best practices
- Ability to collaborate effectively with teams across different locations
- Possess effective verbal communication, writing, and presentation skills
- Analytical thinker with attention to detail
- E-commerce experience is a plus
- Knowledge of WCAG 2.0 AA is a plus
- Experience with react framework a plus
- Bachelor’s degree or equivalent relevant experience
• Professional Experience with HTML, CSS, JavaScript is required
• Experience with JavaScript-based MVC frameworks, especially AngularJS / Vue Js/
similar frameworks is required.
• Knowledge of RESTful services, especially NodeJS is required
• Experience in TypeScript, Git, and unit tests is required
• Proficiency with Object-Oriented design principles and working knowledge of Linux OS.
• Ability to articulate and quickly adopt development best practices.
• Excellent organizational and communication skills
• Willingness to work as a member of a team, including participating in peer code reviews
and maintaining project and operational documentation.
• Ability to work as part of a geographically diverse team
• Ability to communicate with both technical and non-technical people
• B. Tech or M. Tech in Computer Science or equivalent







