Senior Frontend Engineer

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.

Company Profile:

We’re now looking for a passionate “/ReactJS Developer” who is willing to join us at an early stage and help us build a world-class product. 

Required Skills

• 2+ years of RELEVANT EXPERIENCE in ReactJS
• Strong Computer Science fundamentals - data structures and algorithms
• Strong understanding of ReactJS Ecosystem (State management, Component-based design, Hooks, Responsive design)
• Good with CSS (converting UI designs to code)
• Writing clean and maintainable code
• Proficient understanding of APIs and wiring them   
• Strong testing, debugging, and problem-solving skills
• Familiar with modern development practices - writing clean code, git versioning, understanding development workflows

• Develop User interfaces for Modern Rich Internet Applications with the latest Front End Technologies
• Perform product analysis and development tasks of an increasingly complex nature which may require extensive research and analysis.
• Writing tested and documented JavaScript, HTML and CSS
• Make design and technical decisions for AngularJS projects.
• Develop application code and unit test in the AngularJS, Rest Web Services and Java technologies for the Application Development Center. 
• Ensuring high performance

• Strong expertise with HTML, CSS, and writicross-browser-compatibleble code.
• Good understanding of AJAX and JavaScript Dom manipulation Techniques
• Experience with RESTful services
• Experience in JavaScript build tools like grunt or gulp
• Expert in any one of the modern JavaScript MV-VM/MVC frameworks (AngularJS, JQuery, NodeJS, GruntJS)
• Familiar with testing frameworks (Ex. Jasmine)
• Test runner framework (Ex. Karma)
• Hand on and implements complex AngularJS applications, directives, controllers, services
• Critical thinker and problem-solving skills
• Team player
• Good time-management skills
• Great interpersonal and communication skills

Skyber is a fintech based in Mumbai, India and is building a connected commerce platform and disruptive Enterprise SaaS with the fundamental of digitalising, unifying and streamlining businesses processes and transactions.

At Skyber, we are obsessed with our vision to create an ecosystem for Micro, Small, and Medium-sized Business Owners & freelancers of Bharat where we provide them with a procurements to payments & enquiry to invoicing platform. Skyber was born out of the need to bring back the focus on these business owners, to empower them so that they can ride along with the technology wave and adopt the phigital way.

To build such a community we require people with the same vision who are working towards making this dream possible for us and for all these business owners.

Being a part of Skyber is like being a part of a Sports team. Where we back each other.  We know each other's strengths and weaknesses and work towards becoming better individuals and humans while working towards achieving this Dream together.

At Skyber, we believe that responsibility backed by right culture and ambitions backed by ability can move mountains. Thus, people don't get hired by us, but invited to join the cult. ⚡

Our flagship platform - Baazaar(https://baazaar.io">https://baazaar.io) is live on Play Store and iOS App Store 🚀

• Developing new user-facing features using React.j & Next.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

• Strong proficiency in HTML, CSS, SCSS & JavaScript, including DOM manipulation and the JavaScript object model
• Thorough understanding of React.js and its core principles
• Experience with React.JS
• Experience with popular React.js workflows (such as Flux or Redux)
• Familiarity with newer specifications of EcmaScript
• Familiarity with RESTful APIs
• Knowledge of modern authorization mechanisms, such as JSON Web Token
• Familiarity with modern front-end build pipelines and tools
• Experience with common front-end development tools such as Babel, Webpack, NPM, etc.
• 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)

1. Working with a young & dynamic team that constantly tests your thinking and beliefs.
2. No specific work timings. We believe that your work should speak for you and not the time.
3. Constant amusement by Dot (Warning: Apply only if you like dogs) 🐶
4. Occasional doses of Yummy Home Cooked food😋
5. Homelike Work Environment (We also have a bed if you need to sleep - even though we think you wont get any)

If you like what we are doing, and possess the right skillsets and are willing to learn then what are you waiting for? Apply

We are looking for a passionate hands-on engineer to join our Engineering team.

• To build next-generation web applications which are efficient, reusable front-end abstractions and systems.
• Work closely with Product Managers, UX designers, and back-end engineers to implement front-end solutions while embracing emerging standards and pushing the limits of what a browser can do.
• Explore and design dynamic and compelling consumer experiences.
• Command an impressive portfolio of the latest UI technologies
• Analyze system function and performance requirements to support design concepts.
• Actively participate in design and code reviews to build robust applications and prototypes.
• Interacting with other team members to passionately collaborate our innovations.
• Constantly and consistently implementing new features and optimizing existing ones from controller-level to UI. Vigilantly and rapidly fix bugs.
• Create and maintain software documentation
• Endorsing upcoming standards, launching, iterating, and making a difference.

Ideal Candidate

• Proficiency with HTML5, Javascript, Angular JS, React JS and CSS3
• Ability to write well-abstracted, reusable, highly performant code for Website and Web applications.
• Experience with scripting languages (PHP) will be preferable.
• Excellent communication skills, good visual design sense, in-depth experience in developing web-based applications.
• Architecting, configuring, and automating the build process.
• A solid understanding of how web applications work including security, session management, and best development practices
• Aggressive problem diagnosis and creative problem-solving skills
• Ability to work and thrive in a fast-paced startup environment, learn rapidly, and master diverse web technologies and techniques.
• Knowledge in WordPress will be a plus
• Flexibility to work under ambiguous conditions

• 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
• Use markup languages like HTML to create user-friendly web pages
• Design mobile-based features
• Collaborate with back-end developers and web designers to improve usability
• Maintain and improve website
• Develop new user-facing features
• Build reusable code and libraries for future use
• Optimize applications for maximum speed
• Get feedback from, and build solutions for, users and customers
• Write functional requirement documents and guides
• Create quality mockups and prototypes

• Proven work experience of 2+ years as a Front-end developer
• 1+ years experience of working in ReactJS
• Hands on experience with markup languages, including HTML5, CSS3
• Experience with JavaScript, CSS and jQuery
• Good understanding of asynchronous request handling, partial page updates, and AJAX
• Familiarity with browser testing and debugging
• In-depth understanding of the entire web development process (design, development and deployment)
• Understanding of layout aesthetics
• Knowledge of SEO principles
• Familiarity with software like Adobe Suite, Photoshop and content management systems
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