React.js Developer

**TL;DR:** Seeking an experienced Front-end Developer proficient in React and Next.js to build user-friendly interfaces for Proof of Skill, a blockchain-based protocol for skill verification and credentialing.

Proof of Skill protocol is a decentralized system where industry experts (Validators) evaluate candidates' skills and issue verifiable Skill Credentials. Organizations can then shortlist candidates based on these credentials.

**Qualifications and Skills:**

5+ years of experience in front-end development, with a strong focus on React and Next.js

Proficiency in JavaScript, HTML5, CSS3, and related front-end technologies

Solid understanding of React ecosystem, including Redux, React Router, and React Hooks

Experience with Next.js and its server-side rendering (SSR) and static site generation (SSG) capabilities

Familiarity with modern front-end build tools and workflows (e.g., Webpack, Babel, ESLint)

Knowledge of responsive design and cross-browser compatibility

Experience with RESTful APIs and integration with back-end services

Familiarity with web accessibility standards (WCAG) and best practices

Understanding of blockchain technology and decentralized applications (dApps) is a plus

**Responsibilities:**

Design and develop user-friendly interfaces for the Proof of Skill platform using React and Next.js

Implement reusable and modular front-end components following best practices

Integrate with blockchain-based back-end services and decentralized data sources

Optimize performance, scalability, and security of the front-end applications

Collaborate with the design team to ensure pixel-perfect implementation of UI/UX designs

Write clean, maintainable, and well-documented code

Participate in code reviews and ensure adherence to coding standards

Stay up-to-date with the latest front-end technologies, frameworks, and industry trends

**Ideal Candidate Traits:**

Strong problem-solving and analytical skills

Excellent communication and collaboration abilities

Attention to detail and commitment to writing clean, efficient code

Passion for creating intuitive and engaging user experiences

Entrepreneurial mindset and willingness to take ownership

Curiosity and eagerness to learn and grow in a dynamic environment

Experience building for crypto is a huge plus

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.

JOB DESCRIPTION:

• The Development family is responsible for creating, designing, deploying, and supporting applications, programs, and software solutions.
• May include research, new development, prototyping, modification, reuse, re-engineering, maintenance, or any other activities related to software products used internally or externally on product platforms supported by the firm.
• The software development process requires in-depth subject matter expertise in existing and emerging development methodologies, tools, and programming languages.
• Software Developers work closely with business partners and / or external clients in defining requirements and implementing solutions.

RESPONSIBILITIES:

• Lead technical processes and designs considering reliability, data integrity, maintainability, reuse, extensibility, usability, and scalability.
• Review code of development team to ensure quality and adherence to best practices and standards.
• Mentor junior developers to develop their skills and build strong talent.
• Collaborate with Infrastructure partners to identify and deploy optimal hosting environments.
• Define scalability and performance criteria for assigned applications.
• Ensure application meets the performance, privacy, and security requirements.
• Verify test plans to ensure compliance with performance and security requirements.
• Support business and technical presentations in relation to technology platforms and business solutions.
• Mitigate risk by following established procedures and monitoring controls.
• Help develop solutions that balance cost and delivery while meeting business requirements.
• implement technology-specific best practices that are consistent with corporate standards.
• Partner with cross-functional teams to ensure the success of product strategy and project deliverables.
• Manage the software development process.
• Drive new technical and business process improvements.
• Estimate total costs of modules/projects covering both hours and expense.
• Research and evaluate specific technologies, and applications, and contributes to the solution design.
• Construct application Architecture encompassing end-to-end designs.
• Mitigates risk by following established procedures and monitoring controls, spotting key errors, and demonstrating strong ethical behavior.

QUALIFICATIONS:

• Bachelor's degree required with Masters, or equivalent experience preferred
• Minimum of 7 years of related experience.
• 7+ Years of Active Development Experience/ Expertise in Java/J2EE Based Applications proven ability with Hibernate, JPA, Spring, Spring MVC
• Exposure to XML/XSD, JSON and similar data presentation components
• Familiarity with Microservices based architecture and distributed systems.
• Ability to develop and work with REST APIs using Spring Boot framework.
• Knowledge of IBM MQ and messaging protocols such as JMS
• Understanding of Unix/Linux OS including shell scripting
• Strong database and PL/SQL skills
• Experience with CI/CD technologies like GIT, Jenkins, JoCoCo and Maven
• Experience with UI frameworks - Angular, NodeJS and NPM is a plus
• Experience with CSS, HTML, JavaScript, and similar UI frameworks (jQuery, React Angular) is a plus
• Familiarity with Agile development methodology

About Us:

Docsumo is Document AI software that helps enterprises capture data and analyze customer documents. We convert documents such as invoices, ID cards, and bank statements into actionable data. We work with clients such as PayU, Arbor and Hitachi and are backed by Sequoia, Barclays, Techstars, and Better Capital.

Responsibilities:

• You will be responsible for overseeing the development of Docsumo React webapp.
• You will be working closely with the founders and lead the frontend development
• Serve as a thought leader and mentor on technical, architectural, design and related issues
• You will be responsible to provide oversight, accountability, and leadership for technical decisions.
• You will be designing and building modules in React within the Docsumo webapp.
• Own and Implement the features using the technology stack that we have in place while bringing in flavours of latest but proven trends and methods
• Contribute to Product and Design ideas and Implement them as your own product. We value everyone’s inputs
• Work with our hiring team to hire amazing engineers who will expand the Docsumo culture and product

Skills:

• At least 6+ years years experience building React webapps
• Excellent command over React, redux, javascripts, HTML5 and CSS
• Provided effective team management and mentoring for over 3+ years to foster professional growth and drive team success
• Demonstrated ability to build 0-1 product from using React.
• Demonstrated ability of managing frontend engineers
• Proven skills in developing a production level end to end UI application on their own
• Familiarity with Version Control tools, deployment, cloud services and CI/CD
• Must be self-motivated, flexible, collaborative, with an eagerness to learn
• Comfortable working in an Agile work environment with an incredibly fast pace and a large degree of independence.

Benefits:

• Enjoy the flexibility of a hybrid working model, allowing for a balanced work-life integration.
• Access comprehensive insurance coverage to safeguard your health and well-being.
• Participate in our stock options program to share in the company's success and future growth.

Prelude

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

• Must-Know React, PHP, & JS
• Good with writing clean and efficient code
• Must use WordPress coding standards
• Decent knowledge of all technologies involved with developing WordPress plugins
• Basic knowledge of Photoshop for creating pixel-perfect HTML (if needed)
• Common sense & Troubleshooting mindset

• Complete website redesign: The website of the company has been completely redesigned by collaborating with one of the country’s top designers who has worked with brands such as Treebo, Bira 91, etc. You will get the opportunity to create this from scratch.
• Learning Product: Creating the world’s first and most comprehensive live learning product to help kids become confident communicators
• Teacher Product: Ever thought of how millions of Uber drivers are managed completely by technology? You now have the chance to build technology that will manage the entire lifecycle of thousands of teachers across the globe.

•  Break down tech problems and determine a workable solution.
•  Integrate front-end design and/or code into the back-end system.
• Develop incrementally and iteratively to elicit feedback over a short period of time.
• Write a clean, readable code that doesn’t necessarily need to be commented on.
• Collaborate with the business and design teams
• Continue learning and growing in emerging web technologies and methodologies

• As a developer in a funded product company, you will find immense avenues of growth, in the form of knowledge, exposure to different technology, exposure to different products, career progression, and aggressive monetary growth based on performance.
• All 10x engineers will get unparalleled career growth and will outperform their batchmates by two times.
•  You will get complete accountability – you could proudly say that you have built complete products on your own

• Work experience as a front end developer with a reputed organization
• Good Understanding of  ReactJs or Next Js
• Intermediate understanding of relational databases, specifically SQL-based systems, and language.
• Basic to intermediate understanding of front-end languages and technologies, such as JavaScript, HTML5, CSS3, etc.
• Solid understanding of object-oriented development and design patterns.
• Good understanding of testing concepts and practices, including unit, integration, and use case testing.
• A BS/MS in Computer Science, Software Engineering, or related field or comparable experience in web application development required.

Requirements:

• Developing and implementing user interface components using React.js concepts and workflows.
• Developing user interface components and implementing them with a well-known React.js workflow.
• Building reusable components and front-end libraries for future use.
• Translating designs and wireframes into high-quality code
• In-depth knowledge of JavaScript and React concepts, excellent front-end coding skills, and a good understanding of progressive web applications.
• Optimizing components for maximum performance across a vast array of web-capable devices and browsers.
• Develop a flexible and well-structured front-end architecture, along with the APIs to support the applications 

Tech Stack :

PHP, HTML, CSS, JAVASCRIPT, AJAX, REST API, JQUERY, POSTGRESQL/MYSQL, MVC FRAMEWORK.

Responsibilities:

• Design and build advanced applications
• Work with outside data sources and APIs
• Unit-test code for robustness, including edge cases, usability, and general reliability
• Work on bug fixing and improving application performance
• Continuously discover, evaluate, and implement new technologies to maximize development efficiency
• Building reusable code and libraries for future use
• Optimization of the application for maximum speed and scalability
• Implementation of security and data protection
• Able to understand and create Documentation according to Client requirement.

Requirements:

• Ability to write clean, commented and maintainable code.
• Basic understanding of MVC frameworks.
• Basic understanding of front-end technologies and platforms, such as JavaScript, HTML5, and CSS3.
• Proper understanding of OOPS concepts.
• Understanding differences between multiple delivery platforms such as mobile vs desktop, and optimizing output to match the specific platform.
• Creating database schemas that represent and support business processes.
• Proficient knowledge of a back-end programming.
• Proficient understanding of code versioning tools, such as Git.
• Proven software development experience and Web application development skills.
• Understanding of startup culture.
• Good team player, Quick learner.