Lead React JS Engineer

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.

About the Role

We're seeking a talented Frontend Developer to join our engineering team. You'll be responsible for building and maintaining high-quality web applications, collaborating with designers and backend developers to create seamless user experiences.

Key Responsibilities

Development & Implementation

• Build responsive, performant web applications using modern JavaScript frameworks (React, Vue, or Angular)
• Write clean, maintainable, and well-documented code following best practices and coding standards
• Implement pixel-perfect UI designs from mockups and wireframes
• Optimize applications for maximum speed and scalability across devices and browsers
• Integrate RESTful APIs and work with backend teams to define API requirements

Collaboration & Communication

• Work closely with UX/UI designers to translate designs into functional interfaces
• Participate in code reviews and provide constructive feedback to team members
• Collaborate with backend developers to ensure seamless integration between frontend and backend systems
• Contribute to technical discussions and help make architectural decisions

Quality & Maintenance

• Write and maintain unit and integration tests to ensure code quality
• Debug and troubleshoot issues across different browsers and devices
• Stay current with emerging frontend technologies and best practices
• Improve existing codebases through refactoring and optimization

Required Qualifications

• 2-5 years of professional experience in frontend development
• Strong proficiency in HTML5, CSS3, and JavaScript (ES6+)
• Solid experience with at least one modern JavaScript framework (React, Vue, Angular)
• Understanding of responsive design principles and mobile-first development
• Experience with version control systems (Git)
• Familiarity with CSS preprocessors (Sass, Less) or CSS-in-JS solutions
• Knowledge of modern build tools and package managers (Webpack, Vite, npm/yarn)
• Understanding of web performance optimization techniques
• Strong problem-solving skills and attention to detail

Preferred Qualifications

• Experience with TypeScript
• Knowledge of state management libraries (Redux, Vuex, Zustand)
• Familiarity with testing frameworks (Jest, React Testing Library, Cypress)
• Understanding of CI/CD pipelines
• Experience with design systems and component libraries
• Knowledge of accessibility standards (WCAG)
• Experience with Agile/Scrum methodologies
• Portfolio or GitHub profile showcasing relevant projects

Role: UI Developer (ReactJs Developer)

Experience: 1.5 - 2.5 Years
Qualification: BE (IT/ Computer), B.Tech., M.Tech., MCA.

Primary Skills (Must Have):

·      1.5 - 2.5 years of experience in web UI development 

·      Hands-on experience in developing responsive design using ReactJs,HTML 5 + CSS3, jQuery

·      Bootstrap 3 and other JavaScript Frameworks 

·      Worked on SCSS and LESS 

·      Worked on UI integration, collaborate with the design team to define the UI architecture, using Web design best practices 

·      Knowledge of Material design framework Good communication and interpersonal skills 

Additional skills/good to have:

·      Hands-on experience in developing a web-based solution using the latest technologies covering React.Js Angular, Angularjs, jQuery, JavaScript, HTML5 technology (CSS3, Compass, etc.), object-oriented javascript and MVC js frameworks like Extjs/angular/backbone

·      Bootstrap 4 WCAG standards (AAA) W3C validator BEM standards Table structure (Mailer) 

·      Ability to work independently, good communication skills have experience in working on complex and medium to large projects.

·      Good understanding of SDLC and flair to follow the processes. 

·      An understanding of the fundamentals in object-oriented development, UML and Design Patterns

·      Experience building complex web apps that have been successfully delivered to customers 

·      Exceptional analytical abilities, creativity, and attention to detail 

·      Good team player who is a self-starter and well organized

·      Good expertise, good in technical analysis/debugging problems/issues, 

·      Experience in designing and architecting medium to complex systems, well versed with design standards &   framework

·      Experience in working on multiple technologies and complex projects 

·      Knowledge in Design Patterns. 

·      Mobile development experience would be an added advantage.

·      Functional and Technical Specs documentation

Position: React JS Developer

Location: Chennai/Bangalore

Experience: 3-5 Years

Job Responsibilities:

• Reviewing application requirements and interface designs.
• Identifying web-based user interactions.
• Developing and implementing highly-responsive user interface components using React concepts.
• Writing application interface codes using JavaScript following React.js workflows.
• Troubleshooting interface software and debugging application codes.
• Developing and implementing front-end architecture to support user interface concepts.
• Monitoring and improving front-end performance.
• Building reusable code and libraries for future use
• Collaborating with other team members.
• Supporting software deployment and provide post production support (as and when needed)
• Documenting application changes and developing updates.

Required Skills:

• 3-5 years of experience developing and implementing software applications.
• Previous experience working as a React.js Developer.
• Knowledge in e-Commerce domain will be a plus.
• In-depth knowledge of JavaScript, CSS, HTML and front-end languages.
• Knowledge of REACT tools including React.js, Webpack, Enzyme, Redux, and Flux.
• Experience with REST API's 
• In-depth understanding of Javascript, the DOM, and relevant concepts.
• Knowledge of modern authorization mechanisms, such as JSON Web Token. 
• Experience with user interface design.
• Proficient understanding of cross-browser compatibility issues and ways to work around them.
• Experience with browser-based debugging and performance testing software.
• Proficient understanding of code versioning tools, such as Git, Github.
• Excellent troubleshooting skills.

About RARA NOW

Not just a delivery company

RARA NOW is revolutionizing instant delivery for e-commerce in Indonesia through data-driven logistics.

RARA NOW is making instant and same-day deliveries scalable and cost-effective by leveraging a differentiated operating model and real-time optimisation technology. RARA makes it possible for anyone, anywhere to get same-day delivery in Indonesia. While others are focusing on - one-to-one- deliveries, the company has developed proprietary, real-time batching tech to do - many-to-many- deliveries within a few hours. RARA is already in partnership with some of the top eCommerce players in Indonesia like Blibli, Sayurbox, Kopi Kenangan, and many more.

We are a distributed team with the company headquartered in Singapore, core operations in Indonesia, and a technology team based out of India.

Future of eCommerce Logistics:

Data-driven logistics company that is bringing in same-day delivery revolution in Indonesia

Revolutionising delivery as an experience

Empowering D2C Sellers with logistics as the core technology

About the Role:

3+ years of experience in frontend technologies and progressive web applications development

Expert in using of design patterns, data structures and algorithms

Should have sound understanding of design architecture and principles, coding frameworks like react.js, angular.js, vue.js, node.js, next, js, express.js etc.

Experience with popular JS libraries like Ember, Babel, Typescript, Webpack, Socket etc.

Solid understanding of object-oriented design and programming concepts, core JavaScript concepts like scope/closures, the event loop and asynchronous callbacks, promises

Strong proficiency in JavaScript, AJAX, HTML5 CSS3 JSON, including DOM manipulation and the JavaScript object model

Translating designs and wireframes into high-quality code

Knowledge of Redux, React.js and its core principles

Good experience on Web Service Integration ( REST, JSON, XML), Cloud technologies - AWS, FCM

Proficient with debugging and testing tools to troubleshoot and optimize the UI

Exposure to scm tools like git, CI/CD of android systems, code coverage tools like SonarQube, etc.

Good to know hybrid platforms like Cordova, Ionic, React Native, Flutter, etc

Bachelor degree in Computer Science or related discipline preferred

About the company

Qrata is hiring for a Venture funded startup that is backed by marquee investors. Their product provides a collaborative new way for SaaS companies to onboard their large customers. Our unified workspace aims to help streamline customer onboarding and implementation journeys, and get every customer off to a great start.

Quick Facts

Founded in: 2020

Number of Employees: 11 - 50 employees

Industries: Computer Software / IT / Internet

Location: Chennai

Senior frontend lead

Description

Are you a front-end developer looking to fast-track your learning and growth? Have you

looked at world class products like Asana, Notion, or Airtable, and felt “I wish I were part of

the early team that built these products”?

we’re a team that has previously built and rolled out globally successful SaaS

products used by tens of thousands of customers. We’re laser focused on delivering a world

class new product again, and looking for an ambitious front-end engineer to join our existing

team.

If it excites you to think of a fast paced start-up environment, building something big from

scratch, breaking down new problems, creating well structured UI components, executing on

pixel perfect design, paying great attention to every little interaction detail, and doing demos

of your work every Friday with a happy and passionate team, then this is the right

opportunity for you.

Some of the tech problems you get to work-on as a front-end developer would include

building real-time collaboration experiences across our product, building live document

editing and modern spreadsheet experiences from scratch, creating flexible new

Kanban-style views of work tasks, and crafting cool new UI components and interactions that

we will use across our product.

Tech Requirements

• Expertise in React
• Hands-on experience in HTML, CSS, SASS & Object Oriented Javascript
• Code audits and guidelines
• SPA Framework patterns
• Browser features (Caching / Storage / Compatibility etc )
• Test automation
• Deployment strategy

Nice to have

• Familiarity with AWS
• Experience with startups or early stage teams
• Typescript
• Knowledge of module bundlers like Webpack

Requirements and Qualifications

• Bachelor’s or master degree in engineering
• 4+ years of work experience.
• Proficient understanding of HTML, CSS, and Javascript
• Proficient understanding of ReactJs or similar library
• Good understanding of responsive web development
• Good understanding of SEO and analytics
• Ability to break the business problem into smaller features
• Ability to access the technical feasibility of UI/UX designs
• Build reusable code and libraries for future use
• Optimize application for maximum speed and scalability
• Proficient understanding of cross-browser compatibility

1. Overview
https://www.srclogix.com/">SourceLogix  - is a California based software development company. Founded in 2007, we have successfully built our client base with our values: Talent. Team. Trust.

SourceLogix experts help Fortune 500 clients in the areas of SaaS, eCommerce, VoIP, CRM, Transaction systems & Predictive Analytics.

Our latest venture is to build our own Cloud-based SaaS platform to disrupt the Digital Marketing space with a revolutionary voice & video platform - to help customers significantly improve conversions. The platform is built on Amazon Web Services, Google Cloud, and Salesforce CRM to drive Voice & Video with analytics & deep learning, all to significantly improve conversion rates.

We are looking for a great JavaScript developer who is proficient with React.js. Your primary focus will be to develop all user interface components and implement them following well-known React.js workflows such as Flux or Redux. 

• Passion for creating and delivering great software with a strong sense of ownership. 
• Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model.
• Strong knowledge of JSON, XML, JavaScript, CSS2 & CSS3, HTML5 &  jQuery.
• Over two years of experience in building SaaS & web applications using ReactJS.
• Strong and proven experience with popular React.js workflows (such as Flux or Redux)
• Experience with standard front-end development tools such as Babel, Webpack, NPM, etc.
• Familiarity with newer specifications of ECMAScript.
• Familiarity with RESTful APIs & modern authorization mechanisms.
• Independently develop new user-facing features from designs and wireframes.
• Build reusable components and front-end libraries for future use.
• Proficient in Version Control Software such as GIT, Bitbucket.
• Ability to understand business requirements and translate them into technical requirements.

• Knowledge of modern authorization mechanisms, such as JSON Web Token.
• Knowledge of the AWS platform and scalable application architecture.
• Experience with CI/CD - Build & Release process. Agile/ Scrum based development..
• Highly desired knowledge in CSS preprocessors: Sass, Less or Stylus; Server-Side Rendering (SSR); and building Single Page Apps (SPA).
• Knowledge in Nodejs, NextJs is an added advantage.

• Developing new user-facing features using React.js.
• Build reusable components and front-end libraries for future use.
• Translate design and wireframe into high-quality code.
• Optimize components for maximum performance across a vast array of devices & browsers.
• Work closely with business owners, designers & backend developers to build a fantastic User Experience (UX) with solid User Interfaces (UI).
• Be responsive to change, adapt quickly with a talented team and work efficiently & remotely.

• Competitive salary - based on experience.
• 100% remote work. All you need is a good laptop, headset, and internet connectivity.
• Flexible work: don’t care when or where you work. We care how you work & how well you deliver.
• US-based team: open & transparent & professional. 
• Ability to make a direct impact & build a great platform.
• Awesome culture! We are a friendly & collaborative team with a learning and growth mindset.