Sr. NextJS/React 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.

About the Role  

We are seeking an experienced Next.js Developer with minimum 6 years of hands-on experience to join our development team. The ideal candidate will have a strong background in architecting scalable applications, deploying projects, and writing robust test cases. You will play a key role in the full software development lifecycle, from initial concept and architecture through deployment and maintenance.  

Key Responsibilities  

·       Design, develop, and maintain high-performance, scalable web applications using Next.js  

·       Architect project structure for maintainability, scalability, and performance, following best practices for folder and component organization  

·       Lea d and participate in project deployments using modern CI/CD pipelines and cloud platforms. AWS is must  

·       Write comprehensive unit, integration, and end-to-end test cases using frameworks like Jest, React Testing Library, or Cypress  

·       Collaborate with cross-functional teams (designers, backend developers, product managers) to deliver seamless user experiences and integrate APIs (REST/GraphQL)  

·       Optimize applications for SEO, server-side rendering (SSR), static site generation (SSG), and performance  

·       Conduct code reviews, enforce coding standards, and mentor junior developers  

·       Troubleshoot, debug, and resolve issues across the stack to ensure reliability and security  

·       Maintain technical documentation, including architecture decisions, deployment guides, and test plans  

  Required Skills and Qualifications  

·       Development experience of 6+ years in Reactjs and Nextjs (preferred)  

·       Proven expertise in Leading, architecting and organizing large-scale Nextjs projects.  

·       Hands-on experience with project deployment and cloud platform as AWS (preferred)  

·       Strong proficiency in JavaScript (ES6+), TypeScript, MaterialUI and CSS Frameworks  

·       Experience writing and maintaining test cases using Jest, React Testing Library, Cypress, or similar tools  

·       Familiarity with state management libraries (Redux, Context API) and API integration (REST, GraphQL)  

·       Working knowledge of version control systems (Git) and CI/CD pipelines (preferred)  

·       Solid understanding of SSR, SSG, and SEO best practices  

·       Excellent problem-solving, communication, and teamwork skills  

·       Bachelor’s degree in Computer Science, Information Technology, or a related field (preferred)  

Nice to Have  

·       Experience with CSS frameworks (Tailwind, Bootstrap, Sass)  

·       Familiarity with containerization (Docker) and monitoring tools.  

·       Contributions to open-source Next.js projects or technical blogs.  

We are seeking an experienced UI Developer with a strong background in Next.js to join our dynamic development team. The ideal candidate will have a deep understanding of front-end technologies, particularly React and Next.js, and will be responsible for creating high-performance, user-centric web applications. If you're passionate about building intuitive, scalable, and responsive UI components, we'd love to meet you!

Key Responsibilities:

Design and develop responsive and visually appealing user interfaces using Next.js, React, HTML5, CSS3, and JavaScript.

Collaborate closely with designers, product managers, and back-end developers to implement and refine user experiences.

Build reusable components and front-end libraries for future use.

Optimize web applications for maximum speed and scalability.

Write clean, maintainable, and efficient code while adhering to best practices.

Stay up to date with the latest trends, tools, and techniques in web development.

Troubleshoot and debug application issues.

Ensure cross-browser and cross-device compatibility.

Participate in code reviews and mentor junior developers.

Skills & Qualifications:

Experience: 5–8 years of hands-on experience in front-end development with a focus on Next.js.

Proficiency in Front-End Technologies:

Strong knowledge of Next.js, React.js, and other JavaScript libraries and frameworks.

Expertise in HTML5, CSS3, and JavaScript (ES6+).

Familiarity with TypeScript is a plus.

Experience in building responsive, cross-browser compatible websites.

Familiarity with RESTful APIs and integration with back-end systems.

Knowledge of modern web development practices like Webpack, Babel, CSS preprocessors (Sass/SCSS), etc.

Understanding of web performance optimization techniques.

Experience with version control systems such as Git.

Familiarity with agile development methodologies.

Work Profile

• Delivering a complete front end application in AgularJS
• Ensuring high performance on mobile and browser with reusable and modular components spanning cross multiple projects
• Coordinating the workflow between the graphic designer, the HTML coder, and yourself
• Integrate with the back-end developer in the process of building the RESTful API
• Communicating with external web services for 3rd Party tools and services integration

Requirement

• Experience and proficiency with AngularJS, JavaScript and HTML5
• Deep knowledge of AngularJS practices and commonly used modules based on extensive work experience
• Creating self-contained, reusable, and testable modules and components
• Ability to provide SEO solutions and optimization
• Writing non-blocking code, and resorting to advanced techniques such as multi-threading, when needed
• Creating custom, general use modules and components which extend the elements and modules of core AngularJS

● 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

● Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model

● Thorough understanding of React.js and its core principles

● Experience with popular React.js workflows (such as Flux or Redux)

● Familiarity with newer specifications of EcmaScript as well as HTML and CSS

● Experience with data structure libraries (e.g., Immutable.js)

● Working knowledge and integration knowledge with RESTful APIs

● Knowlegde of websockets implementation is a must.

● 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}

● Added advantages if you have working knowledge of AWS

• 💰 Early-stage, ed-tech, funded, growing, growing fast.
• 🎯 Mission Driven: Make Indonesia competitive on a global scale.
• 🥅 Build the best educational content and technology to advance STEM education
• 🥇 Students-First approach
• 🇮🇩 🇮🇳 Teams in India and Indonesia

• You primarily identify as a Frontend Engineer or a UI Engineer and are comfortable working on the browser side of things with 7+ years experience (preferably from B2C startup companies).
• You can build accessible interfaces with semantic HTML, CSS, and Javascript.  
• You can build reusable, performant, and well-tested web applications that are responsive and work across various devices and platforms.  
• You can build features from scratch which are modular and scalable. You don’t hesitate to take them from design to implementation.
• You have shipped code to production recently and regularly.
• You are experienced in working with using modern web frameworks, like React, Vue, and friends. We use React but prefer people with strong web concepts and fundamentals who are open to learning any framework/library. 
• You are fluent in using the tools of the trade: editors, git, command line, Slack, Jira (unfortunately yes)
• You are driven, you care about turning in quality work, and improving your craft.
• You have high integrity, and you are reliable.

• Mentorship and continuous improvement are a part of the team’s DNA. We have a battle-tested robust growth framework. You will have people to look up to and people looking up to you.
• We are a people-first, high-trust, high-autonomy team.
• We live in the TDD, Pair Programming, First Principles world

• Distributed does not mean working in isolation, feeling alone, being buried in Zoom calls.
• Our leadership team has been WFH for 10+ years now and we know how remote teams work. This will be a place to belong.
• A good balance between deep focussed work and collaborative work ⚖️

• 30-minute alignment check and screening call
• A short take-home coding assignment, no more than 2-3 hours. Time is precious.
• Pair programming interview. Collaborate, work together. No sitting behind a desk and judging.
• In-depth engineering discussion around your skills and career so far.
• System design and architecture interview for senior roles.

• Bring your software engineering — both individual brilliance and collaborative skills.
• Bring your good nature — we're building a team that supports each other.
• Be vested or interested in the company vision

Role: Senior UI Developer 

We are looking for talented front-end developers who can help us in enabling our users and to deliver excellent experiences to end users. The role of a front-end developer in our teams is crucial in realizing our design ideas. We are looking for developers who can contribute in building the best-in-class digital experiences through the right use of frameworks, technologies and code.

Design and Develop web applications using front-end technologies like Angular 8+, Typescript, CSS, JS, HTML and many more.

Implement applications that have high standards of quality and the best of the performance. The candidate primary focus will be to implement a complete user interface desktop web app, with a focus on performance. Translate UX / UI designs from our design teams into high quality code without any loss in translation Design and implement optimized components, modules and applications using best practices of front- end development and clean coding standards. Work closely with backend 

development teams on API design and integration.

Experience and Qualification:

• 3 years of experience in front-end development of web applications. 
• Frameworks: Angular 8+, Typescript, CSS, JS, HTML 
• Experience in react js, jQuery and backend stacks will be an advantage
• B. Tech

Responsibilities:

• Delivering a complete front-end application
• Coordinating the workflow between the graphic designer, the HTML coder, and yourself
• Cooperating with the back-end developer in the process of building the RESTful API
• Communicating with external web services

Key Skills:

• Strong proficiency in Angular 8+, Typescript, JavaScript.
• Strong skills in HTML, CSS and any other CSS Frameworks.
• Thorough understanding of any front-end frameworks like React, Angular or any other along with its core principles
• Experience with data structure libraries, state managements, functional / reactive programming.
• Familiarity with newer specifications of ES6.
• Experience with RESTful APIs integration
• 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.