Senior Front-End 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.

Responsibilities

• 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

Skills:

• Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model
• Experience in GraphQL
• Thorough understanding of React.js and its core principles
• Experience with popular React.js workflows (Redux)
• Familiarity with newer specifications of ECMAScript
• 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
• 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, SVN, and Mercurial)

Work location: Bangalore

Job Description:

1. Hands-on experience on AngularJs (1.xx)
2. Hands-on knowledge of UI development
3. Familiar with latest JavaScript (ECMA Script)
4. Hands on experience on Bootstrap
5. Familiar with Authentication and Authorization
6. Familiar with GIT version control
7. Good communication skill

As a Front-end developer, you will work with motivated individuals who are passionate-beyond-measure to offer the Ultimate Shopping experience to consumers. You will leverage the latest technologies (HTML5, Javascript, ajax) and application paradigms (web apps on the desktop) to create a beautiful client that runs seamlessly on windows, mac, chrome, firefox, IE, safari.

Responsibilities:

• Implement Visual Designs in standards compliant, clean markup (HTML5/CSS3/JS)
• Develop responsive designs and thoroughly test cross browser compatibility of all product interfaces
• Identify and research new UI technologies
• Suggest and implement improvements to existing product interfaces
• Assist in building wireframes/prototypes
• Make data driven decisions based on analytics to improve user engage
• Advise, collaborate with, and synthesize feedback from designers and the backend team.
• Ready to explore and perform tasks that are out of your own pool of expertise
• Fulfil several project requests simultaneously while meeting tight deadlines.
• Make pages optimized for both performance as well as SEO

Requirements:

• Expert in making scalable and modular Front End code
• In depth knowledge of HTML, CSS & JavaScript
• Good experience in making Progressive Web Apps
• Knowledge of cross browsers & devices development issues and inconsistencies
• Good knowledge and experience in ReactJS and Server Side Rendering
• Experience in setting up & running task runners like Gulp & Webpack
• Experience in CSS pre and post processors like SASS/Stylus & PostCSS (we use SASS combined with PostCSS) & BEM style coding
• Experience in creating transitions/animations at 60fps especially on mobiles

About the role:
We’re looking for a React.Js Developer who can adapt to new tech stacks and innovate with cutting-edge technology solutions, to build eCommerce platforms that are unique, disruptive, and powerful

What you'll do:
● Develop new user-facing features using React.js
● Build reusable components and front-end libraries for future use
● Translate designs and wireframes into high-quality code
● Optimize components for maximum performance across a vast array of web-capable devices and browsers

What you'll need:
● Bachelor's degree with minimum 3 years of work experience as a React Js
● Strong proficiency in JavaScript or Typescript, including DOM manipulation and the JavaScript object model
● Experience with data structure libraries (e.g., Immutable.js)
● Knowledge of object-oriented programming
● Experience with popular React.js workflows (such as Flux or Redux)
● Integration of multiple data sources and databases into one system
● Familiarity with newer specifications of EcmaScript
● Experience with common front-end development tools such as Babel, Webpack, NPM, etc.
● Ability to understand business requirements and translate them into technical requirements

Who Should Consider Joining:
● If you like challenges and think from a first principle basis,
● If you are driven to take ownership and are adept at rolling with the punches,
● If you have the aspiration to grow fast in the dynamic environment of a start-up,
● If you are a collaborative team member, who believes in collective success,
● If you are someone who makes objective, fact-based decisions

Who should not consider joining:
● If the role description does not excite you, then you should not join us
● We are a startup and things will move fast. If you are not comfortable in a fast-paced environment, then you should not join us
● If you are not a self-starter who is willing to learn & experiment more, then you should not join us.

What We Offer:
● Limitless growth and learning opportunities
● Exposure to cutting edge technology solutions and upcoming stacks in the market
● In house technical training on GIT, Automated Testing, Code Coverage, Language Training and much more
● A collaborative and positive culture — Your team will be as smart and driven as you.
● Guidance and mentorship from industry experts and renowned IIT Alumnus
● An opportunity to make an impact — Your work will contribute directly to our strategy and growth

• 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

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

• Knowledge of isomorphic React is a plus

• Familiarity with RESTful APIs
• Knowledge of GraphQL is a plus.

• 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


Timeline:

Responsibilities:

• Complete ownership of building and maintaining APP
• Deliver across the entire app life cycle design, build, deploy, test, release to app stores and support
• Open to work on both Android and iOS front end

Requirements:

• React Developer with 2 years of experience
• Solid understanding of Javascript, NodeJS fundamentals
• Full stack understanding of Backend services, API implementation and database systems.
• Experience in either iOS(Swift, Objective C, XCode) or Android(Android Studio, Java, Kotlin)
• At least 2 year of experience in React app development
• Ability to implement designs and functionality provided by UI/UX teams
• Understanding of production deployment of the app in the App Store and Play Store

Key Skills:

• React, NodeJS

Good to have:

• Familiarity with Analytics and AWS web hosting
• Android(Android Studio, Java, Kotlin, )
• Knowledge of server-side technologies like Node.js and frameworks available for it (such as Express, StrongLoop, etc depending on your technology stack)
• Willing to explore and work on other tech stacks