Sr. Frontend Developer

Senior React Developer – Trading & Fintech (Broker-Focused Solutions)

About Us:

At Tradelab Technologies Pvt Ltd, we don’t just build web applications, we create high-performance trading platforms tailored for brokers and financial institutions. Our platforms power real-time market analysis, ultra-low-latency trade execution, and seamless broker-client interactions.

What We Expect:

• 2+ years of front-end development experience, with 2+ years specializing in React.js.
• Deep expertise in React, Next.js, TypeScript, and state management libraries (Redux, Recoil, Zustand, etc.).
• Proven experience in building and optimizing ultra-responsive, high-performance trading platforms for brokers.
• Strong understanding of financial data visualization, real-time charting, order book mechanics, and trade execution workflows.
• Hands-on experience with real-time data streaming, WebSockets, FIX protocol, and API integrations for brokerage services.
• In-depth knowledge of performance optimization, server-side rendering, and rendering strategies for trading dashboards.
• Security-conscious mindset—you know how to build secure, compliant fintech applications that handle sensitive brokerage and trading data.
• A problem-solving mentality that thrives under pressure—brokers depend on our platforms for seamless trade execution, and we deliver nothing less than perfection.

What You Will Do:

• Lead the front-end development of trading applications designed specifically for brokers and financial institutions.
• Architect and optimize blazing-fast, low-latency web applications that ensure brokers can execute trades with unmatched speed and accuracy.
• Design and implement high-performance data visualization components—live stock charts, trade analytics, real-time market depth, and complex order books.
• Work closely with brokers, backend engineers, and UX designers to craft seamless, intuitive, and highly secure trading solutions.
• Solve hard problems at scale—whether it’s optimizing execution speeds, handling high-frequency WebSocket updates, or ensuring zero downtime during peak trading hours.
• Innovate and experiment with cutting-edge front-end technologies to push the boundaries of brokerage solutions.
• Own your work end-to-end—from concept to deployment, ensuring traders and brokers get a flawless user experience.

Must-Have Skills:

• Proven expertise in Front-end development with React.Js
• Deep expertise in React, Next.js, TypeScript, and state management libraries (Redux, Recoil, Zustand, etc.).
• Proven experience in building and optimizing ultra-responsive, high-performance trading platforms for brokers.
• Strong understanding of financial data visualization, real-time charting, order book mechanics, and trade execution workflows.
• Hands-on experience with real-time data streaming, WebSockets, FIX protocol, and API integrations for brokerage services.

Nice-to-Have Skills:

• Experience working on brokerage trading platforms, order management systems (OMS), or risk management tools.
• Contributions to open-source React trading libraries or a portfolio of real-time financial applications.
• Knowledge of regulatory compliance, order execution policies, and broker risk management tools.
• A track record of leading front-end teams, mentoring developers, and driving architectural decisions.

Why Join Us?

• Work with elite engineers and brokerage professionals in the fast-moving world of trading technology.
• Build platforms that brokers, traders, and financial institutions depend on daily.
• A culture that values bold innovation, real-time execution, and pushing the limits of brokerage tech.
• Expect challenges, high expectations, and a relentless pursuit of performance and precision.
• Competitive compensation, performance-driven growth, and a real opportunity to lead and shape the future of trading web applications for brokers.

If you’re obsessed with performance, thrive under market pressure, and are driven by results, we want you on our team. This is your chance to solve some of the toughest front-end challenges in brokerage and fintech. Step up. Apply now.

The Opportunity At Certa, we are building the AI-native Operating System for global enterprise relationships. We have the clients (Fortune 100/500) and the robust backend technology. Now, under the guidance of our new Head of Design, we are elevating our experience to match the best consumer products in the world. We are looking for our First Design Engineer. You are the "missing link" between our pragmatic engineering requirements and our ambitious design vision. You won't just implement tickets; you will define how our product feels.

The Role This is not a standard Frontend Engineer role, nor is it a Product Designer role. This role is equal parts: Craft-focused Frontend Engineering: You write production-grade code, but you obsess over the details that others miss. Systems Thinking: You don't just build components; you build the architecture (Design System) that allows the rest of the team to build beautiful UI faster. Figma-to-Code Mastery: You bridge the gap between static Figma files and dynamic browser realities, moving fluidly between design and implementation.

What You Will Do

1. Architect the Design System & UI Patterns Take ownership of our internal design system. You will treat it as an internal product, creating a type-safe, accessible, and composable library in React & TypeScript. Manage the tokens, components, patterns, documentation, and governance required to scale design across a remote engineering team. Bridge the gap between Figma Variables/Tokens and code, ensuring a single source of truth for our visual language.
2. Make AI-Native UX Feel Trustworthy & Human Implement interaction patterns specifically for AI workflows: streaming states, progressive disclosure, and optimistic UI. Build for "explainability" and human-in-the-loop controls, ensuring users trust the system even when it automates complex tasks. Make complexity feel simple—especially when the system is performing sophisticated "smart" operations in the background.
3. Maximize Output with AI-Assisted Tooling Hyper-automate the mundane: Use AI coding assistants (Cursor, Copilot, etc.) to handle boilerplate and scaffolding, allowing you to spend 80% of your time on the 20% of the "feel" and "craft." Build tooling and guardrails (linting rules, visual checks, component playground workflows) that help the team ship high-fidelity UI consistently.
4. Bridge Design & Code (Figma-First) Live in Figma: You are expected to be as comfortable in Figma as you are in VS Code. You’ll tweak layouts, design missing states, and refine prototypes yourself. Push performance beyond just metrics: focus on rendering, bundle size, perceived speed, and interaction responsiveness. Raise the bar on accessibility and cross-browser behavior, ensuring the product is usable by everyone.

Must Haves

1. Expert Figma Skills: This is a primary requirement. You should be fluent in auto-layout, components, variables, and prototyping. You view Figma as a design environment and a technical spec.
2. AI-Assisted Workflow: You are a "power user" of AI tools (Cursor, Copilot, v0, etc.). You know how to leverage AI to move faster without sacrificing the quality of the final output.
3. Strong Frontend Foundation: Deep expertise in React + TypeScript with a track record of shipping complex, data-heavy UIs in production.
4. Demonstrated UI Craft: A portfolio showing obsession with spacing, typography, interaction detail, and motion. You likely have a "Folder of Inspiration" from the best apps in the world.
5. Design System Experience: Strong experience building and maintaining a design system: tokens, components, patterns, and documentation.
6. Accessibility Expertise: You build keyboard-first UX, understand screen reader behavior, and enforce correct ARIA usage by default.
7. Modern Tooling: Experience with Vite and modern frontend tooling; comfortable setting up and customizing JS tooling/build systems.

Why You? (The "Craft" Factor)

1. You are inspired by the design-engineering cultures of companies like Linear, Vercel, Family, or Arc (The Browser Company).
2. You get annoyed when a modal closes without an exit animation.
3. You understand that latency is a UX problem, and you use optimistic UI updates to make the app feel instant.
4. You believe enterprise software doesn't have to look like a spreadsheet from 2005—it should feel as fluid as the best consumer apps.
5. You are an "AI-augmented" engineer who uses modern tools to do the work of three people while maintaining the taste of an artisan.

JOB TITLE - SENIOR WEB DEVELOPER

KEY RESPONSIBILITIES

Roles and Responsibilities

·      Developing Content Management System.

·      Designing and building the website front-end.

·      You will be responsible for both back-end and front-end development including the implementation of WordPress themes and plugins as well as site integration and security updates.

·      Building wireframes and designs for website before execution.

·      Ensuring the alignment of web design and user experience, Able to interact with team and understand functional requirements and create design documents for new features.

·      To work in teams alongside back-end developers, graphic designers, and user experience designers to ensure all elements of web creation are consistent.

·      Utilizing a variety of markup languages to write web pages for e.g., HTML, CSS, JS

·      Review app and feature coding and plan future website upgrades with the development team.

·      Troubleshooting content issues.

·      Assure that all user input is validated before submitting to back-end

·      Generating WordPress themes and plugins.

·      Conducting website performance tests.

QUALIFICATIONS AND COMPETENCIES

·      Bachelor’s degree in computer science or a similar field.

·      Proven experience as a Full Stack Developer or similar role.

·      Experience designing and developing responsive design websites.

·      Knowledge of front-end technologies including CSS3, JavaScript, HTML5, and jQuery.

·      Knowledge of code versioning tools including Git, Mercurial, and SVN.

·      Experience working with debugging tools such as Chrome Inspector and Firebug.

·      Good understanding of website architecture and aesthetics.

·      Excellent communication and teamwork skills

·      Great attention to detail

·      Organizational skills

·      An analytical mind

KEY RESULT AREAS FOR THE ROLE

·      Ability to understand CSS changes and their ramifications to ensure consistent style across platforms and browsers.

·      Ability to convert comprehensive layout and wireframes into working HTML pages.

·      Helping formulate an effective, responsive design and turning it into a working theme and plugin.

·      Accessibility and performance optimizations of websites across devices.

·      Building reusable components and front-end libraries for future use.

• Strong in Vue.js or React.js, HTML, HTML5, DOM(Document Object Model) concepts
•  Must know Nuxt.JS a Vue Framework.
• CSS3, SASS, SCSS, Bootstrap 4, Webpack, Box Modelling, Grid System
• Responsive Design, Cross browser/device development
• Strong knowledge of JavaScript
• OOJS - Object-oriented JavaScript

Requirements

• 2+ years of experience with one of the top frontend frameworks - React (preferred)/ Angular / Vue
• Solid understanding of modern CSS methodologies like SCSS, SASS
• Exposure to latest developments in UI development like PWA, Single Page Apps, Hybrid Apps, Responsive web design etc
• Working knowledge of RESTful APIs, HTTP 2, Socket Connections
• Deep understanding of Javascript topics including the V8 Engine, Async, Memory Management, Duplex Communication.
• Experienced in Unit / Integration / Visual Testing.
• Ability to develop pixel-perfect web pages from designs
• Prior startup experience is a plus

• Deep understanding of JavaScript and Angular Framework
• Understanding of Git and pull requests
• Clear written and spoken communication skills
• Excellent analytical skills
• 2+ years in web development using Angular

Responsibilities:

• Participating in design and development activities as required for specific projects allocated
• Understand the project requirement and able to implement and complete the allocated modules independently.
• Follows established development and testing procedures to ensure quality software development which meets the requirements
• Creates and maintains documentation regarding systems being developed in order to ensure long-term maintainability

Requirements:

• BTech or equivalent degree from a reputed institute
• Proven hands-on Software Development experience
• Design & Develop HTML5 games with the help of HTML5, CSS3, JavaScript, AJAX, SVG, Pixijs library across multiple platforms(Web/ MobileTablet/ TV)
• Building reliable and efficient code for game projects
• Should understand build milestone process and meet project timeline.
• Helps drive the delivery of successful, cutting edge products by working on a team with other Developers, and Designers
• Work towards optimization and best practices, increase performance of our application
• 1 to 3+ years of development experience. (Preferably Gaming)
• Good knowledge of HTML5, CSS3, JavaScript, AJAX, SVG, JSON
• Strong understanding of Object-Oriented Programming, and Design Patterns for Games and Web Applications
• Familiarity with any of the current generation JavaScript frameworks like PixieJS, CreateJs, Starling etc
• Strong attention to detail and knowledge of robust quality assurance practices
• Strong testing, debugging, and analytical skills

Experience :  Minimum 1 year to 2 years experience required.

Education: Any Engineering Graduate

Work Location:  Anywhere in India (Remote Work)

Job Requirements:

• 1+ years of professional experience in Information Technology field as Front End Developer
• Strong experience in HTML, CSS, Java Script, JQuery and Bootstrap
• Knowledge of formal methods and techniques in software development
• Experience / Knowledge in the following technologies/languages/libraries/frameworks:
• Exposure server side programming using Python / PHP / Java / C#
• Experience with Version Control Software (GIT)
• Ability to work independently and direct a team of any size (small to medium or large)
• Excellent written and oral communication skills

If the above assignment and work practice are exciting you, then apply.  We will invite video call meeting for shortlisted candidates after assessment.