React.js 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.

JOB PURPOSE

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• Develop application using Angular JS (worked on Express JS, JEST), Angular 6 
• This is a hands-on role which involves writing code, testing, and deploying finished web applications and libraries

MAJOR ACCOUNTABILITY

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• Design, rapid prototype, and implement a scalable, reliable and maintainable node based web application
• Enforce code quality through test driven development
• Enhance, refactor, and continuously improve the existing codebase
• Collaborate closely with team to define product requirements
• Aggressively collect, analyse, and act on data about product performance
• Communicate effectively with technical and non-technical people
• Proactive in keeping your skills updated

ESSENTIAL SKILLS & EXPERIENCE

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• Excellent working knowledge of core Java, Node JS, JavaScript, ES6, Micro services
• 4-6 year's overall development experience (At least 2 years of experience in Node JS and Angular JS)
• Good understanding of security in Micro service and Web Applications
• Good understanding of OOP, and design patterns
• Experience in working with databases - SQL and Non-SQL Databases

EDUCATION

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• Minimum education: Any Graduate BE/B.Tech would be desirable
• Languages: Excellent English written & spoken

The primary purpose of this internship is to provide freshers with knowledge in web development. We conduct weekly communication classes to enhance communication skills. Additionally, special orientation classes covering topics such as customer satisfaction and work ethics. You will be given training on interview preparation. Our training method simulates the corporate training approach, where students report to their mentors. By the end of this internship, you will have a strong foundation in web development.

We are a fast-paced startup and looking for a developer fluent in problem-solving,Javascript and ReactJS to help us deliver an amazing advertisement solution.

Roles and responsibilities:

1. Develop new features in React/NextJS
2. Write unit test cases
3. Fix bugs and write technical documentation
4. Write CI/CD pipelines for the UI

QUALIFICATIONS: 

• Minimum 3-5 years of Experience in Java Backend development. 
• Degree in Engineering or Computer Science. 
• Good knowledge/experience in Data structure, Algorithms. 
• Proficiency with Programming Language: Java 1.8 and above (1.8 V must), J2EE. 
• Proficiency with Framework: Spring Stack (Security, Web MVC, REST), Hibernate, JMS. 

• Strong knowledge in any one Relational Databases (Mysql / Oracle / SQL Server). 
• Strong experience in Web services (SOAP and RESTFUL). 
• Tools & Utilities: STS / Eclipse / IntelliJ / NetBeans.Web/Application Server: Jboss. 
• Should have expertise in Design Patterns, Transactions, Multithreading concepts 
• Proficiency in Build Cycle management (Maven, Jenkins, Scripting). 

• Familiarity with Deployment technologies like Docker, Rancher and Virtual machines. 
• Familiarity with Agile Development processes. 
• Exposure to Spring Integration batch knowledge, OAuth2 authentication 
• Excellent verbal communication skills. 
• Good problem-solving skills with attention to detail. 

• Able to create functional, attractive applications that perfectly meet the needs of the user. 

Required Candidate profile

• Minimum 3 years experience in React redux and Flux
• 3 years experience in Frontend skills
• Familiarity with database technology such as MySQL,  MongoDB. ·
• Good communication. 

We are looking to hire an experienced Frontend Developer with a very good grasp over Javascript and the capability to make responsive pages.
The candidate should have good knowledge of:
- Javascript 
- HTML & CSS

- Node js
- PWA 
- Electron JS platform.
- API Integration
Candidates having good logical skills are preferred.

We are looking for a React.js Developer to join our team! If you are interested in creating the best user experience and UI, you will love this job!

• Plan, develop and implement user interface strategy
• Work with designers and developers to develop modern, intuitive user interfaces for our web properties
• Work on design, look, and feel of our web properties
• Continuously improve the user experience
• Research user preferences
• Research new technologies and best practices
• Work in a team environment with shared code; disciplined use of source code control and process documentation
• Improve JS and CSS quality by conducting code analysis, and recommending changes in policies and procedures

• 1+ year of experience with  ReactJS, Next.js
• 1+ years of experience with SASS/LESS
• 1+ years of experience with TypeScript
• 1 years of experience with node
• 1 years of experience with HTML
• 1 years of experience with CSS
• 1 years of experience with DOM
• 1 years of experience with AJAX, AXIOS, etc
• Critical thinker and problem-solving skills
• Team player
• Good time-management skills
• Great interpersonal and communication skills
• Degree in Computer Science

Key Skills
Typescript, React, React.js, Javascript, Node