We're seeking a skilled Front-end Lead Engineer to lead an ongoing production-ready enterprise project and contribute to code while leading the frontend team. If you're adept at creating user-friendly products and eager to work with cutting-edge tech in a growing company, we want to hear from you. We value an entrepreneurial mindset and passion for technology in our team members.
Experience: 5+ Year
Working Time: 12.30 PM to 9.30 PM
- Front-End Development: Develop and maintain front-end components for our applications using React.js, Material UI, TypeScript, React Hook Form, and React Query.
- Collaboration: Work closely with Back-End, Business, and Design teams, as well as other Front-End developers to align efforts and successfully bring solutions to market.
- Quality Assurance: Ensure all work is properly stored, maintained, and developed on the company's network, servers, and other tools. Ensure that the code adheres to established quality standards and best practices.
- Prototyping and Development: Develop prototypes, software applications, systems, and solutions for business problems using the latest tools, open-source technologies, software applications and systems, cloud-based applications, and programming languages such as Java, C++, C#, SQL, and other languages.
- Full Lifecycle Development: Participate in the full lifecycle development of applications and complex systems, including coding standards, code reviews, source control management, build processes, testing, and operations, while maintaining the best possible performance, quality, and responsiveness of such systems and/or applications.
- Agile Development: Contribute to the development and implementation of an efficient and effective solution delivery system. Utilize tools like Jira to establish trackable timelines and measurable impacts on company productivity, ensuring adherence to agile methodologies.
- Security: Ensure the confidentiality and integrity of company materials, programs, issues, business strategies, and solutions; report suspected information security violations or breaches.
- Architecture and Design: Assist in building the architecture and design of critical databases and user interfaces for use by the company, its expert network, and clients.
- Troubleshooting: Troubleshoot software applications and systems, identifying bottlenecks, bugs, and defects, and devising solutions to mitigate and address such issues as they arise.
- Compliance: Ensure that software is developed to meet functional, non-functional, and compliance requirements, maintaining continued quality, organization, and automation.
Requirements
- Bachelor's degree in Computer Science or related field.
- 5+ years of professional experience in front-end development.
- Strong proficiency in React.js, Material UI, TypeScript, React Query, and React Hook Form.
- Experience with monorepo development, Nx knowledge is a plus.
- Excellent problem-solving and communication skills.
- Ability to collaborate effectively in a team environment.
- Experience with agile development methodologies and ceremonies
Benefits
- Gain real-world experience in corporate functioning.
- Learn to collaborate with diverse teams and meet deadlines in a professional environment.
- Access various learning and development programs to explore your passion.
- Work in a fast-paced, rapidly expanding tech team undergoing a revamp, with exposure to advanced technology and tools relevant to your role

About Sublime Data Systems Private Limited
About
Home | Sublime Data Systems
Sublime Data Systems Private Limited, is a custom product development company based out of Ahmedabad, providing customized and scalable software solutions as dedicated and extended tech partners for Start-ups/ entrepreneurs across the USA & UK.
What do we do?
- We proudly solve the biggest problems encountered by start-up founders, entrepreneurs, and enterprises. Sublime Data Systems offers the most innovative IT solutions to clients with an objective to bridge the gap between brilliant and creative Digital Solutions and Clients
- Started in 2017, Sublime has achieved 200% growth with 15+ tech domain specialists working tirelessly; supported by an all-time energetic Sales and Marketing team!
- We are working with leading industries like Legal, Fintech, HealthTech, Edutech Media, and HR industries which are being used by Fortune 50 companies and have raised in total of 400mn USD funding till date in total
- We've completed projects for 50+ customers in 12+ countries working hand-in-hand with them to bring their visions to life, digitally
Perks of joining us?
- Positive work environment
- Remote work option
- Encourage and sponsor for learning and development programs
- Chance to work with advanced technology
- Opportunity to reveal a hidden talent
Connect with the team
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Job Title: Frontend Developer – Perpetual Trading
Location: Remote
Experience: 2+ Years
About the Company
We are a next-generation cryptocurrency exchange focused on building innovative and secure trading experiences for digital assets and derivatives. With a strong emphasis on perpetual trading and real-time market execution, we aim to redefine how traders interact with crypto markets — combining transparency, performance, and user-centric design.
Role Overview
We are seeking an experienced Frontend Developer with a strong background in perpetual trading platforms and Web3 projects. The ideal candidate has hands-on experience integrating perpetual trading APIs such as GMX, Hyperliquid, or similar decentralized perpetual exchanges. You will develop high-performance, real-time trading interfaces that deliver seamless user experiences.
Key Responsibilities
- Develop and maintain scalable, responsive, and real-time front-end interfaces for perpetual trading dashboards.
- Integrate APIs from decentralized perpetual trading platforms like GMX, Hyperliquid, or others.
- Implement real-time order books, charts, and market data using REST and WebSocket APIs.
- Collaborate with backend, blockchain, and UI/UX teams to deliver a cohesive trading experience.
- Optimize the interface for low latency and high-frequency data updates.
- Implement wallet connectivity (MetaMask, WalletConnect) and secure trade execution flows.
- Write clean, modular, and maintainable code following modern front-end practices.
Required Skills & Experience
- 2+ years of experience as a Frontend Developer in crypto, DeFi, or trading platforms.
- Proven experience integrating perpetual trading APIs (e.g., GMX, Hyperliquid, Drift, or similar).
- Strong skills in React.js / Next.js, TypeScript, HTML5, CSS3, and JavaScript (ES6+).
- Experience working with real-time data using WebSockets.
- Familiarity with charting libraries (TradingView, Recharts, D3.js).
- Understanding of Perpetual Trading, Futures, and DeFi trading mechanics.
- Hands-on experience with Web3 integration using ethers.js or web3.js.
- Knowledge of API integration, front-end performance optimization, and security best practices.
Good to Have
- Experience in DEX / Web3 UI development.
- Familiarity with Redux, Zustand, or other state management tools.
- Understanding of smart contracts and on-chain data.
- Strong eye for UI/UX design in complex trading applications.
Responsibilities:
- Collaborate with cross-functional teams to define, design, and ship new features.
- Develop and maintain web applications using Angular
- Design, build, and maintain efficient, reusable, and reliable code.
- Ensure the best possible performance, quality, and responsiveness of the application.
- Identify and correct bottlenecks and fix bugs.
- Work with external data sources and APIs.
- Unit-test code for robustness, including edge cases, usability, and general reliability.
- Collaborate with other developers and stakeholders to ensure successful project completion.
Requirements:
- Bachelor's degree in Computer Science, Software Engineering, or related field.
- 2+ years of experience in web application development using Angular.
- Strong knowledge of Angular 2+ and TypeScript.
- Experience with Angular Material and Bootstrap.
- Knowledge of relational database design and development using SQL Server.
- Familiarity with agile development methodologies.
- Strong analytical and problem-solving skills.
- Excellent written and verbal communication skills.
- Ability to work independently and as part of a team.
Preferred Qualifications:
- Experience with Entity Framework Core.
- Experience with Azure Cloud Services.
- Familiarity with unit testing frameworks such as NUnit and xUnit.
- Experience with source control management tools such as Git.
- Knowledge of CI/CD pipelines using Azure DevOps or similar tools.
Description of Skills/abilities:
We are looking for a great JavaScript developer who is proficient with React.js. Your primary focus will be on developing user interface components and implementing those with well-known React.js workflows such as Redux. You will ensure that these components and the overall application are robust and easy to maintain. You will coordinate with the rest of the team working on different layers of the infrastructure. Therefore, a commitment to collaborative problem solving, sophisticated design, and quality product is a must.
You will be responsible for architecting and building the applications, as well as coordinating with the teams responsible for other layers of the product infrastructure. Building a product is a highly collaborative effort, and as such, a strong team player with a commitment to perfection is required.
Responsibilities
- Developing new user-facing features using React.js, React hooks.
- 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 all browsers.
- Build pixel-perfect, buttery smooth UIs across all web browsers.
- Diagnose, fix bugs, maintain code and write automated tests to ensure the product is of the highest quality.
- Key understanding about Object Oriented Programming, Web Architecture, SDLC, Rest Framework.
- Should have understanding in Hybrid App Ecosystem, Code Once - Deploy Anywhere thought process.
- Responsible for development of new highly-responsive, web-based user interface.
- Construct visualizations that are able to depict vast amounts of data.
- Work with product team and graphic designers.
- Develop a flexible and well-structured front-end architecture, along with the APIs to support it React.js developer requirements and qualifications.
- Support the entire application lifecycle (concept, design, test, release and support). Produce fully functional web, mobile applications writing clean code.
Skills
- Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model.
- Thorough understanding of React.js and its core principles.
- Having Experience with popular React.js workflows such as Redux.
- Familiarity with newer specifications of Typescript.
- Having Experience with data structure libraries (e.g., Immutable.js).
- Knowledge of isomorphic React is a plus.
- Familiarity with RESTful APIs.
- 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.
- Familiarity with code versioning tools such as Git, SVN.
- Knowledge of functional or object-oriented programming.
- Ability to write well-documented, clean typescript code.
- Rock solid at working with third-party dependencies and debugging dependency conflicts.
- Understanding of REST APIs, the document request model, and offline storage.
Skill Set:
React, React Hooks, Redux, and Typescript with minimum of 6+ Years of relevant Experience.
Job Role:
- Build pixel-perfect, buttery smooth UIs across both mobile platforms.
- Leverage native APIs for deep integrations with both platforms.
- Diagnose and fix bugs and performance bottlenecks for performance that feels native.
- Maintain and write clean code to ensure the product is of the highest quality.
About us :
Humancloud Technologies is a leading digital technology and innovation
partner transforming businesses across the globe through its services and
solutions. We believe in helping our businesses stay ahead of the curve by
enabling them to leverage the new-age technology services of Blockchain,
IoT, Cloud and Experience Design. We, at Humancloud, have nurtured ideas from validation to production and shaped them into scalable
businesses.
An experienced IIT Delhi alumni leadership coupled with a team of
talented and supportive peers look forward to your onboarding.
Job Description ReactJs Developer:-
- Expertise in React.js, Angular 2+ versions, Node.js, Express.js, etc
- Frameworks like Redux and React are a must
- RESTful APIs
- 2+ year Proficiency in Angular, Nodejs and Reactjs Development and it's core principles.
- Extensive knowledge of JavaScript, web stacks, libraries, and frameworks.
- Knowledge of the SDLC Model, development and standards, source control, code review, build and
deployment, and continuous integration.
- Experience with popular React.js workflows (such as Flux or Redux)
- Proficiency in JavaScriptTypescript, including DOM manipulation and the JavaScript object model
- Knowledge of REST Services and Principles
Desired Qualification And Experience
• Minimum undergraduate in Computer Science, MCA or Statistics from a Tier 1/Tier 2
academic institution
• Minimum 2 years of professional experience as a React/Angular/VueJs developer
• Excellent written, and verbal communication, and client-facing skills
• Exceptional analytical and problem-solving skills
• The ability to quickly grasp new concepts and learn new technologies
• The traits of a self-motivated, independent, detail-oriented, and responsible team player.
- Developer/Senior Developer Role in Javascript/React
- Design and Develop Libraries for React
- Strong analytical skills - ability to turn business requirements into technical concepts and code
• Minimum 3 years of experience in React (at least 3 projects) and familiar with modern React (Hooks, Context API)
• At least one PWA project
• Deep knowledge of Typescript (at least 2 years)
• Excellent problem solving and communication skill
• Used to writing automated tests with tools like Jest & Cypress
• Working with a ticket tool like Jira
• Experience with SCRUM/Agile Development
• Experiences with NodeJS is a plus
• Experiences with Monorepositorys and Nx is a plus
- We are looking for a skilled React.js Developer to join our front-end development team. In this role, you will be responsible for developing and implementing user interface components using React.js concepts and workflows such as Redux, Flux, and Webpack. You will also be responsible for profiling and improving front-end performance and documenting our front-end codebase.
- To ensure success as a React.js Developer, you should have in-depth knowledge of JavaScript and React concepts, excellent front-end coding skills, and a good understanding of progressive web applications. Ultimately, a top-class React.js Developer should be able to design and build modern user interface components to enhance application performance.
React.js Developer Responsibilities:
- Meeting with the development team to discuss user interface ideas and applications.
- 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.
- Documenting application changes and developing updates.
React.js Developer Requirements:
- Bachelor’s degree in Computer Science, Information Technology, or a similar field.
- Previous experience working as a React.js Developer.
- 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 user interface design.
- Knowledge of performance testing frameworks including Mocha and Jest.
- Experience with browser-based debugging and performance testing software.
- Excellent troubleshooting skills.
- Good project management skills.
Responsibilities
- Convert wireframes into rich interactive prototypes.
- Work with backend development team to integrate front end code.
- Understand business requirements and convert into functional specifications.
- Participate in architecture and technical level discussions and takes initiative.
- Passion for web design and eager to learn and implement the latest trends.
- A focus on delivering high-quality code through strong testing practices
- Working on Information architecture and Designing wireframes and prototypes.
Skills Required:
- 4+ years of commercial-grade web/front-end development experience.
- Strong experience in JavaScript, ideally ES6 or ES7, Node.js, building Single Page Web Applications with modern frameworks (Angular or AngularJS, React, Vue).
- 2+ years hands on experience with frameworks like react/relay/Redux/node.
- 2+ years with JS build tools like grunt,webpack,gulp etc.
- Knowledge in ES6, Webpack is a plus.
- Experience in creating web applications with delightful user experience.
- Experience working with REST APIs.
- Experience in TDD, Writing Clean & Readable code.
- Experience in Version control - Git.
- Awareness of cross-browser compatibility issues and client-side performance considerations
- Experience in creating responsive pages and cross-browser support.
- Ability to clearly communicate thoughts and ideas by rapid prototyping.
- Debugging skills, familiar with debugging tools of all major browsers.
Nice to Have:
- Prior experience in Fintech Startups
- Knowledge of Node.js, Express js, AWS (EC2, S3, Elasticsearch)
- Knowledge and working experience with MongoDB, NOSQL
Job Description
-
Maintain quality and ensure the responsiveness of applications.
-
Hands on experience on ReactJS , JS frameworks, Angular JS (nice to have)
-
Understanding of Material Design and Accessibility
-
Hands on experience with HTML5 & CSS3.
-
Ensure that software meets or exceeds specified standards and end-user requirements
-
Handling end to end UI development, Unit Testing for the project.
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Build reusable code and libraries for future use
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Optimize application for maximum speed and scalability










