ReactJS Developer

About the Role

At Ceryneian, we’re building a next-generation, research-driven algorithmic trading platform aimed at democratizing access to hedge fund-grade financial analytics. Headquartered in California, Ceryneian is a fintech innovation company dedicated to empowering traders with sophisticated yet accessible tools for quantitative research, strategy development, and execution.

Our flagship platform is currently under development. As our Frontend / Full Stack Engineer, you’ll lead the creation of a stunning, intuitive user experience—spanning our landing page, drag-and-drop strategy builder, trading dashboards, and internal tools. You’ll collaborate closely with design, backend, and DevOps teams to build high-performance, secure, and scalable customer-facing applications. This role is central to delivering the reliability, flexibility, and performance our users will rely on in fast-moving financial markets.

We are a remote-first team and are open to hiring exceptional candidates globally.

Core Tasks

·      Design, build, and deploy customer-facing interfaces, including the strategy builder, dashboards, and marketplace.

·      Implement reusable UI components based on Figma designs; integrate charting tools like TradingView or Highcharts.

·      Own the frontend development pipeline, including prototyping, implementation, testing, and responsiveness.

·      Implement secure authentication and user management (OAuth2, JWT, multi-role access).

·      Build real-time web experiences using WebSockets, REST, and client-server integrations.

·      Collaborate with backend and DevOps teams to streamline data flow and deployment workflows.

Top Technical Competencies

·      Strong foundation in HTML/CSS, JavaScript/TypeScript.

·      Proficiency in modern frontend frameworks such as React (Next.js), Svelte, Angular, Vue, or Phoenix.

·      Experience with OAuth2 and secure authentication workflows.

·      Familiarity with server-side rendering (SSR) and modern state management (Zustand, Redux, MobX).

·      Integration experience with charting libraries such as TradingView, Recharts, or Highcharts.

·      Deployment experience using platforms like Vercel, Heroku, GCP, or AWS.

·      Working knowledge of WebSockets, REST APIs, and data streaming models.

·      0–3 years of frontend development experience.

Bonus Competencies

·      Familiarity with Supabase, PostgreSQL, Firebase, or MongoDB.

·      Understanding of microfrontend architectures or API Gateway patterns.

·      Experience with WebAssembly and real-time trading interfaces.

·      Exposure to fintech platforms or trading systems.

·      Background from Tier-I or Tier-II institutions with strong computer science fundamentals, a passion for scalable system design, and a drive to build cutting-edge fintech infrastructure.

Ideal Candidate

You’re a design-minded full stack engineer who builds fast, clean, and modular frontend systems. You thrive on making complex interfaces intuitive—turning strategy logic into drag-and-drop workflows—and can ship high-performance components that integrate seamlessly with real-time APIs. You value design systems, scalable frontends, and cross-functional collaboration.

What We Offer

·      Opportunity to shape the product interface of a next-gen fintech startup.

·      A collaborative, technically driven culture.

·      Competitive compensation with performance-based bonuses.

·      Flexible working hours and a remote-friendly environment.

·      Exposure to financial modeling, trading infrastructure, and real-time systems.

·      Collaboration with a world-class team from Pomona, UCLA, Harvey Mudd, and Claremont McKenna.

About Job

HelloAR is actively seeking React JS developers with strong proficiency in Three.js to join our growing technical team.

Qualifications:

• Proficiency in modern JavaScript, including ES6 and promises.
• Previous experience with React.js in either a commercial setting or personal projects.
• Understanding of common browser APIs and recent HTTP protocol extensions relevant to frontend development.
• Familiarity with state management libraries such as Redux.
• Experience working with 3D libraries like Three.js.
• A problem solver who enjoys challenges and puzzles.

Responsibilities:

• Develop and maintain HelloAR's React applications.
• Create UI components based on provided designs.
• Produce reusable code and libraries for future use.
• Collaborate with team members and stakeholders.
• Contribute to team development and initiatives.

About HelloAR:

HelloAR is a Remote Presentation platform for physical products. Our platform empowers users to create immersive product catalogs, 3D product configurators, sales tools, e-commerce experiences, collaboration tools, and more. We offer well-designed APIs, a 3D design marketplace, a drag-and-drop admin tool, SDKs for various web and mobile platforms, SDKs for VR platforms, and out-of-the-box solutions that enable users to deliver exceptional product presentations to their customers.

Expectations for Our Engineers:

• Tackle challenging problems.
• Take pride in producing high-quality code.
• Display interest in Augmented Reality.
• Build simple yet powerful web applications.
• Embrace the unique challenges of working in a startup environment.
• Possess knowledge (or a willingness to learn) about 3D and computer graphics.
• Be open to experimentation, learning, and becoming experts in new languages and platforms.
• We are seeking developers who not only excel in programming but also have the ability to question specifications and propose better solutions for users.

• Proven at least 2 to 3 years of work experience as a Front-end developer
• Hands-on experience with markup languages
• Experience with JavaScript,Next.Js and Tailwind is a must
• Familiarity with browser testing and debugging
• In-depth understanding of the entire web development process (design, development and deployment)
• Understanding of layout aesthetics
• Excellent analytical and multitasking skills
• Engineering Graduates preferred

Hi

About the Company:Our Client is Private Limited aims to be the country’s first food platform that brings together digitalfirst brands, experiences and retail destinations that will influence and shape the narrative around food amongst India’s most discerning consumers.

Job Location : Mumbai

What you’ll be doing?

• Developing new React Applications

• 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 ReactJS, React Native, and it's core principles.

• Experience with the backend framework ExpressJs. - Experience with popular ReactJS workflows (such as Flux or Redux)

• Familiarity with RESTful APIs, javascript unit testing framework, modern front-end builds pipelines, and tools

What you’ll bring?

• We are looking for an experienced React developer to be part of a diverse, fast pace and energetic team at Consumer Technologies

. • The candidate will be expected to develop and manage Web and Mobile interfaces built in ReactJS and React Native and at the same time provide troubleshooting and 2nd-tier support for existing applications

. • The candidate should be a self-starter, who is proactive, positive, flexible, and a good leader.

• Minimum qualifications: B.Tech./B.E. in CS, IT, or ECE

• 3 to 5 years of experience as React Native Developer or React.JS development.

Regards

Team Merito

Job Description:-

• React.js with Redux and Typescript 
• Experience working with Git, JIRA
• End to end responsibility from development to production.
• Work with product and design teams to translate designs and wireframes into high-quality products.
• Good written and verbal communication skills
• Eager to learn new things in technology  

• Delivering a complete Front-end application
• Ensuring high performance on mobile and desktop
• Writing tested, idiomatic, and documented JavaScript, HTML and CSS
• Coordinating the workflow between the graphic designer, the HTML coder, and yourself
• Cooperating with the back-end developer in the process of building the web service/ application
• Communicating with external web services

Technical/Functional Skills:

• 3 to 5 yrs of experience working as an Angular Developer
• Experience in Angular 7,8,9 versions are mandated.
• Proficiency in CSS, HTML, javascript
• Experience on Multi-Language is preferable
• Knowledge on Arabic design is a plus
• Experience on Components based Architecture
• Experience on CSS Grids and Flex Layout mandatory
• Well versed with coding standards
• Be able to provide effort estimations based on the customer requirements
• Experience of implementing enterprise level Angular applications and the related Architecture
• Implementation knowledge on Agile, working experience on Continuous Integration (CI) process is required
• Experience of integration with SAP is highly desirable
• Working knowledge with databases ORACLE, SQL Server, mySQL
• Be hands-on technical and should work as either individual contributor or team member
• Must have knowledge in code version mechanism using tools like TeamCity, GitHub
• Knowledge on Agile scrum and waterfall methodology
• Optimizing performance of code and reviewing code of junior developers
• Work closely with the architecture team and provide architecture inputs
• Experience with understanding of mobile related frameworks like Cordova is a plus
• Comfortable dealing with APIs and utilizing oDATA/REST / JSON interfaces
• End-to-End experience - Discovery to Deployment of Angular applications Soft Skills Required
• Good communication and interpersonal skills
• Candidates should be independent thinkers, thought leaders, good presentation and communication skills and great at solving problems

What you need to have:

Experience: 2 to 7 years