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.

What you’ll do: 

● Own and build next-generation web applications which are efficient, reusable front-end abstractions 

and systems. 

● Explore and design lively and compelling consumer experiences. 

● Ensure that all the assigned systems are performing to scale. 

● Actively participate in design and code reviews to build robust applications and prototypes 

● You will mentor junior engineers on design and proper coding practices 

What you will need: 

● A deep expertise in React, Javascript, HTML5 and CSS3. 

● Understanding of browser internals and a basic understanding of the network stack. 

● Understanding of common design patterns followed in front-end projects. 

● Basic awareness of application security practices and deployment techniques for front-end projects. 

● Should have sound knowledge in computer science fundamentals like data structure, object-oriented 

programming and possess excellent communication skills. 

About Our Client

It is a last-mile tech-logistics solution provider for intra-state deliveries based in Bangalore. It offers reliable, affordable, and professional services, structured to serve enterprises.

Our Client aggregates light commercial vehicles for urban logistics and has onboarded 55,000+ truckers on its platform across 14 cities. Our Client works across industry sectors like organized retail, FMCG and e-commerce, distribution and 3PL companies. Some of its clients include Amazon, Flipkart, Bisleri, Vishal Mega Mart, Future Supply Chain, Coca-Cola, Delhivery, and Udaan.

The company offers customized logistics solutions for clients, along with other value-added services such as screened drivers, audited and GPS-enabled vehicles, point-to-point billing, status updates, 24x7 service, and greater efficiency, all at transparent and economical pricing.

Our Client, as a brand, is known as one of the market leaders in the enterprise segment, and first movers to identify and empathize with the underserved urban trucker community, playing a huge role in making them a part of the mainstream economy. This series-B funded tech-logistics company aims to disrupt the primitive $35bn+ urban-logistics industry by leveraging technology and help enterprises to reach consumers faster.

Our Client is India's largest enterprise urban-logistics provider in India, with 55,000+ Light Commercial Vehicles on its platform.

Why Our Client?

- Switch career into internet startups.
- Work with fast-paced organizations.

What will I do?

 Develop new user-facing features·
 Build reusable code and libraries for future use·
 Ensure the technical feasibility of UI/UX designs·
 Optimize application for maximum speed and scalability·
 Assure that all user input is validated before submitting to back end·
 Collaborate with other team members and stakeholders.· 

What skills should I have?

 BTech, BE, BS degree in Computer Science, similar technical field of study or equivalent practical·
experience.
 3+ years·' experience in web and software development.
 Demonstrated knowledge of web technologies such as HTML5, CSS3, Javascript and AJAX/Fetch·
API.
 Demonstrated experience in React, React-Router, Redux, React-saga/Thunk.·
 Ability to work independently and multi-task effectively.·
 Flexible and willing to accept a change in priorities as necessary.·
 Strong attention to detail.·
 A good understanding of cross-browser compatibility issues and ways to work around them.·
 Proficient with code versioning tools, such as Git / Mercurial / SVN·
 A good understanding of SEO principles and ensuring that application will adhere to them.· 

Responsibilities:

• Responsible for development of new highly-responsive, web-based user interface
• Work and collaborate in a scrum structure
• Develop components and libraries that are reusable and future-proof
• Develop a flexible and well-structured APIs to support the system

Required Skills:

• Excellent understanding of Javascript including the OOP concept and how DOM work
• Thorough understanding of React.js and its core principles
• Prior experience with popular React.js workflows (such as Flux or Redux)
• Prior experience with data structure libraries (e.g., Immutable.js)
• Familiarity with RESTful APIs
• Familiarity with HTML / CSS
• GIT experience
• 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.
• Should be comfortable working in our Bangalore office from Day 1.
• Should possess good communication skills.

About Eastvantage:

At Eastvantage, our mission is to create meaningful jobs and provide careers that are knowledge-based, inspiring, and always with the potential for development and growth.

We are an independently-owned Global business solutions company enabling offshore operations from our locations in the Philippines, India, Bulgaria, Vietnam and Belgium. With European roots, we provide our services to global companies that have offices in every populated continent in the world. We have been in the industry for over a decade, growing from a handful to over 1200 happy employees over the years.

We invite you to navigate through our website to get to know who we are, to see what sets us apart in culture and thinking. Join us and be part of our success story!

• 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)
• Hands on experience with Typescript
• Expertise with RESTful APIs integration and best practices
• 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
• Familiarity with code versioning tools such as Git

About TO THE NEW:

TO THE NEW (TTN) is a technology services company that designs, builds, & runs digital products and platforms for Fortune 500 companies, enterprises, SaaS, and consumer tech companies. We are recognized by global analyst firms like Gartner, Everest, ISG, and Zinnov for our capabilities in Digital Engineering, Cloud, and Data & Analytics. We have deep expertise in Experience design, Open source technologies across Web, Mobility, CMS, diverse Cloud infrastructures, DevOps, Big data & analytics, Quality, and test automation; combined with proven experience in Agile methodologies.

Founded in 2008, TTN is one of the fastest-growing companies with a growth rate of over 60% since 2017. Our passionate team of 2000+ “Newers” is spread across our delivery centers in Delhi, Dubai, NYC, and Sydney. TO THE NEW is a consistent winner of the prestigious ‘Great Place to Work’ award since 2015 and ranked #47 in the ‘Top 100 companies in India to Work’ for in 2019. Recently TTN was also recognized as one of the ‘Top 25 India’s best IT & IT-BPM workplaces’.

We take pride in our culture driven by passion for making an impact through technology and is backed by our emphasis on learning and development. 

Responsibilities:

1. Create high performance, secure, responsive, clean and simple front-end builts in collaboration and discussion with backend developers, designers and product owners

2. Responsibility for resolving all issues assigned in a timely manner

3. Participate in and lead architectural discussions with a group of senior architects

4. Identify and establish best practices and frameworks keeping in mind parameters of performance, responsiveness, security, maintainability, extensibility, and reuse

5. Translate designs and style guides into interactive user interfaces, ensuring cross browser compatibility, performance and robustness

6. Deliver high quality code that is maintainable and readable.

7. Develop and maintain features using JavaScript.

8. Our clients would value you for your comprehensive knowledge and understanding of Front-end design and architectures

Requirements:

1. Experience in developing front-end technologies using Object Oriented JavaScript, React.js, HTML, & CSS

2. Understanding of various browser engines

3. Experience to handle cross browser compatibility issues

4. Experience of full software development life cycle and good understanding of version control systems like Git.

5. Experience with an agile development methodology, preferably Scrum

6. Excellent time management, multi-tasking and communication skills

7. Understand the needs of our users and customers at the beginning of each project

8. Provide complete, actionable, and timely technical feedback to your Agile team

9. Mentor fellow and junior engineers