Javascript 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.

JOB PROFILE: - SOFTWARE ENGINEER TRAINEE

Experience with Web fundamentals like HTML5, JavaScript, CSS3, and JSP, etc.

Good understanding of Object-Oriented JavaScript (OOJS), ES6,

Hands-on exp in Web app development using modern client-side MVC frameworksusing ReactJS

Thorough understanding of ReactJs and its core principles

Experience with common front-end development tools such as Babel, Webpack, NPM,etc.

Experience developing custom reusable components in ReactJS

Proficient understanding of unit testing using JavaScript test frameworks like JEST

Experience integrating REST APIs

Ability to understand business requirements and translate them into technical requirements

💥 What will you do?

As a Lead Frontend Engineer, you will

• Own our frontend engineering applications for two products each of which run as independent applications which query our backend systems via REST APIs

• Act as a leader and coach within the front-end engineering team, collaborating with and mentoring senior engineers.

• Collaborate on a daily basis with a small, nimble team of product managers, engineers, and UX designers to understand business requirements and user experience goals and pain points.
• Write and review modular, reusable components and features (React.js / Vue.js) and integrate backend APIs to create a seamless front-end user experience
• Integrate third-party plugins to enhance customer experience. These include 3rd party plugins which provide customer support and analytics plugins that help improve the user experience we provide to customers.
• Actively participate in code reviews
• Work with our quality assurance team to improve coverage on our automated testing suites

🙋 What are we looking for? 

While we do not have a strict list of requirements for candidates interested in this role, some indicators that you would fit this role and our engineering culture are 

• Prior experience of a few years (3+ years) with frontend frameworks as React.js or Vue.js would be essential to work on our application stack.

• You actively promote a culture of engineering excellence some of which could be writing efficient code, use of elegant design patterns, and styling your code through code-linting policies.

• You enjoy designing software architecture by collaborating with leads to explore existing systems, determining areas of complexity, potential risks to successful implementation.

• You have an eye for pixel-perfect UI and micro-interactions.
• You enjoy coaching folks to achieve outcomes through nudges.

📢 Other information you may want to consider 

• We will be flexible for the rest of the pandemic and work remotely; however, we are not a remote-first company, and the work location would be Bangalore when things settle.
• Our frontend tech stack includes React.js, Vue.js, Netlify for CI / CD, TestCafe for UX testing, d3.js, and Regraph for visualizations.

We are looking for a Front end Engineer with at least 1 year of experience. with a fast-moving organisation based out of Mumbai, India.

Skills Required:-

• java script
• React
• React native
• Knowledge of Angular, HTML/CSS3 is a plus
  
  

Roles and Responsibilities:-

• Develop new user-facing features.
• Defining Architecture & Flow for the enterprise-level project
• Writing reusable code and libraries for future use.
• Ability to write clean code with proper comments
• Ensure the technical feasibility of UI/UX designs.
• Optimise application for maximum speed and scalability.
• Integrating API's
• Excellent Debugging Skills
• Great Problem-Solving Skills
• knowledge of best practices in javascript framework and the ability to implement it
• Helping others if they got stuck with any problem

• 5+ years of experience as a Full Stack front end developer
• Proficient understanding of web markup, including HTML5, CSS3.
• Good understanding of client-side scripting and advanced JavaScript libraries/frameworks, AngularJS
• Good understanding of asynchronous request handling, knowledge of AngularJS practices and hand on implementation of complex AngularJS applications, directives, controllers, services.
• Good understanding of AJAX and JavaScript Dom manipulation Techniques.
• Experience in JavaScript build tools like grunt or gulp.
• Proficient with the JavaScript language and its modern ES6+ syntax and features.
• Proficient with .NET framework and its core principles
• Proficient understanding of code versioning tools, such as GIT/Bitbucket.
• Critical thinker and problem-solving skills.
• Good time management skills.
• Great interpersonal and communications skills.

About the role:

We are looking for an experienced Software Development Engineer II (SDE2) to help deliver high visibility and impact features for the ChakraHQ Platform. ChakraHQ Platform is the world's first Omnichannel Process Automation Platform. Imagine AWS but for operations and business teams; built on cutting edge technology stacks, to solve problems for modern businesses.

Technology specialists at ChakraHQ are at the core of the company's decisions and vision. As an SDE2, you will contribute to the design and development of the core technology stack of the ChakraHQ Platform. Working closely with Engineering, Product Management, Sales and Customer Success you will take ownership to develop features, plugins and custom fixes that will materially impact customer’s and ChakraHQ’s business. You will also be responsible for maintaining a streamlined build and CI/CD system. You will help coordinate the incorporation of upstream features into the ChakraHQ Platform. 

Technologies you will work with: React, Javascript, Android, iOS, PostgreSQL, Serverless, AWS, Google Cloud

Responsibilities:

• Design, develop and maintain features, services, products that are part of ChakraHQ
• Own delivery of said features and services
• Own success of the products by tracking its lifecycle with customers
• Build systems that scale horizontally
• Implement clean and modern mobile interfaces that provide an excellent user experience. 
• Write automated tests to ensure code quality
• Work with customers to build a product roadmap
• Work with sales & marketing to sell your product to end-users
• Work as an integral part of an agile software development team to build features end-to-end
• Support those features in the ChakraHQ production environment by participating in an on-call rotation

Position Requirements:

• Bachelor's degree in Computer Science. 
• 3+ years of experience working on teams to develop and deploy web or mobile applications
• Expertise with Javascript
• Knowledge of frameworks such as React.js is a big plus
• Ability to write code compatible across browsers and other clients
• Good understanding of backend systems i.e. web services, APIs from a consumer perspective
• Proficiency with git and Github workflows
• Expertise with test-driven development and automated testing
• Excellent analytical and problem-solving skills
• Excellent communication skills and fluent English
• Open to learn and work on new technologies

• Synthesize business requirements and translate them to appropriate technology solutions.
• Product development for C# and SQL based solutions.
• Modify existing software to correct errors, allow it to adapt to new hardware, or to improve its performance.
• Analyze user needs and software requirements to determine feasibility of design within time and cost constraints.
• Coordinate software system installation and monitor equipment functioning to ensure specifications are met.
• Design, develop and modify software systems, using scientific analysis and mathematical models to predict and measure outcome and consequences of design.
• Think strategically and balance short-term needs with longer-term business priorities
• Challenge status quo and champion new ideas throughout cross functional organizations; ability to inspire confidence and trust with peers and cross functional business teams

Required Qualifications:

• Bachelor's Degree in Computer Science, Computer Engineering, Chemical Engineering or related field
• 4+ years overall and as a C# programmer and 1.5+ years in WPF.
• Should have hands on experience on desktop application development using UWP or WPF
• Should have worked on WPF in recent projects.
• Well versed in C#, SQL, HTML5, Java Script, ASP.NET, WPF, and MVC
• Excellent communication skills
• Team oriented

Preferred Qualifications

• Familiar with project management methodology, Agile/Scrum and TFS or JIRA
• Proven experience working directly with end customers or internal business units
• Prior experience working with global development teams
• Experience in IoT environments
• Experience in working in Azure

Senior Software Engineer, Frontend

https://www.alivecor.com/">AliveCor, the pioneer of the smartphone EKG, with millions of EKGs from a large and growing user base, seeks a Senior Software Engineer (Front-end Applications) to contribute to the Applications team. You will be an integral member of our engineering team, responsible for developing industry-leading web applications that transform the healthcare industry and affect the way consumers use, engage, and act on their health data.

• Passionate about User Experience.
• Has great verbal and written communication skills to engage directly with your peers.
• Understands and is thoughtful about engineering trade-offs
• Experience building web applications with cross-browser support and RESTful API integrations
• Commitment to delivering results.
• Passionate about continuous improvement.

• B.E in Computer Science or a related discipline, or related practical experience.
• 5-8 years of Frontend development experience with at least 2 years working as a React.js Developer.
• A strong grasp of software engineering and web application development fundamentals, including JavaScript (ES5, ES6), HTML and CSS.
• Aptitude to learn new technologies (e.g. ES.Next).
• Excellent troubleshooting skills.
• Familiarity with RESTful APIs to connect the Front-end applications to backend service
• Bonus points for:
• Publicly available web applications, portfolios, or examples available on a source repository (e.g. GitHub, GitLab, Bitbucket)
• An interest in data visualizations using JavaScript libraries such as D3, Highcharts, and others
• Experience managing front end tooling (e.g. gulp, grunt, webpack, post-CSS, service workers)
• Experience with performance analysis and tuning of web application
• Experience developing back end server APIs and/or server-side rendering

AliveCor is on a mission to define modern healthcare through data, design and disruption. We’ve pioneered the creation of FDA-cleared machine-learning techniques, transformed wearable medtech to put proactive heart care at everyone’s fingertips. Kardia is the most clinically validated mobile EKG technology. AliveCor was named as one of the Top 10 Most Innovative Companies in Health for 2017 by Fast Company as part of the publication’s annual ranking of the world’s Most Innovative Companies. AliveCor was awarded the 2015 Tech Pioneer by the World Economic Forum and one of the 50 Smartest Companies in 2015 by the MIT Technology Review. AliveCor recently announced a collaboration with Mayo Clinic that will result in new machine learning capabilities to unlock previously hidden health indicators in EKG data, potentially improving heart health as well as overall health care for a variety of conditions. AliveCor is a privately held company headquartered in Mountain View, CA.

AliveCor is an equal opportunity employer and will not discriminate against any employee or applicant on the basis of age, colour, disability, gender, national origin, race, religion, sexual orientation, or any other classification protected by federal, state, or local law.

Watch the following video demonstrating our product.

https://www.youtube.com/watch?v=8I9xosgA-Ig">KardiaMobile: How's your heart?
https://www.youtube.com/watch?v=8I9xosgA-Ig