React Developer

Required Skills and Experience:

• 5 - 11 years of experience in front-end development, with a strong focus on React.js.
• Proven experience with React.js and related technologies (e.g., Redux, React Router, Hooks, Context API).
• Strong proficiency in JavaScript, HTML5, CSS3, and modern front-end build tools (e.g., Webpack, Babel, etc.).
• Hands-on experience with RESTful APIs, Server Sent Events, WebSocket's
• Hand’s on experience with web components, micro frontends
• Deep understanding of browser apis like history, intersection observer, event handling, virtual panes, drag and drop etc
• Ability to work on a complex and fast moving code base.
• Familiarity with TypeScript and its integration with React applications.
• Strong problem-solving skills and attention to detail.

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.

We are building new-age billing and pricing infrastructure for SaaS companies. As SaaS pricing evolves from vanilla subscription-based models to more granular usage-based models, billing and pricing infrastructure needs to be completely reimagined.

We're building our founding team and are looking for a front-end developer, who can take ownership of the user-facing side of our product. Your primary roles and responsibilities will evolve as the team grows.

Responsibilities:

• Taking full ownership of building a pixel-perfect frontend product
• Understanding code quality, maintainability, modularity, and scalability
• Break down large tasks into independent smaller chunks
• Implementing good testing practices to ensure rapid iteration
• Communicating with both technical and non-technical stakeholders to understand their points of view and to discuss your own ideas

Requirements:

• A basic understanding of backend development is a plus
• 1-3 years of experience
• Capable of building the frontend part of web applications with minimal guidance
• Proficiency in Javascript, Reactjs, HTML, and CSS
• Knowledge of other Javascript frameworks is a plus. Tailwind CSS/Tailwind UI experience is preferred but not required.
• Comfortable with frontend build systems
• Good understanding of frontend optimization
• Good at making a designer's design come to pixel-perfect reality
• Good at making decent interfaces from basic wireframes (without a designer's help) when needed
• Understanding of SSR is a plus, but not required
• Familiarity with billing systems, CPQ, and accounting systems is a plus
• Entrepreneurial mindset
• Self-driven individual with high ownership and a strong work ethic
• Good communication skills.

Benefits:

• Health insurance
• Generous vacation policy
• Learning and development budget
• Team events and company offsites
• Choose your laptop
• Maternity and Paternity benefits

Job Title - Senior Frontend Engineer

About Tazapay 

Tazapay is a cross border payment service provider. They offer local collections via local payment methods, virtual accounts and cards in over 70 markets. The merchant does not need to create local entities anywhere and Tazapay offers the additional compliance framework to take care of local regulations and requirements. This results in decreased transaction costs, fx transparency and higher auth rates. 

They are licensed and backed by leading investors.   www.tazapay.com 

What’s exciting waiting for You? 

This is an amazing opportunity for you to join a fantastic crew before the rocket ship launch. It will be a story you will carry with you through your life and have the unique experience of building something ground up and have the satisfaction of seeing your product being used and paid for by thousands of customers. You will be a part of a growth story be it anywhere - Sales, Software Development, Marketing, HR, Accounting etc. 

We believe in a culture of openness, innovation & great memories together. 

Are you ready for the ride? 

Find what interesting things you could do with us.

About the Frontend Engineer role

Responsibilities (not exhaustive)

• Lead core development efforts for our front-end applications, ensuring high-quality code that is performant, scalable, secure and maintainable.
• Collaborate closely with the product team to understand user needs and translate them into exceptional user interfaces (UI).
• Partner with the design team to achieve pixel-perfect implementation while maintaining and evolving our design systems.
• Write clean, maintainable, and testable JavaScript with a focus on performance optimization and scalability.
• Champion the use of modern build tools like Vite to streamline development workflows.
• Implement effective unit tests to ensure code quality and stability.
• Take complete ownership of features, from initial discussions with the product manager to incorporating customer feedback.
• Demonstrate a strong understanding of modern front-end architecture and best practices.

The Ideal Candidate

Experience

• Proven experience as a senior frontend engineer with a strong track record of building and shipping complex web applications.
• In-depth knowledge of HTML, CSS, JavaScript (ES6+), Tailwind CSS, Git, npm, and Sentry.
• Familiarity with integration of front-end with backend web services.
• Strong experience with a popular front-end framework like React, Angular, or Vue.js (Vue.js experience a plus).
• Prior experience developing and maintaining a UI component library.
• Familiarity with modern build tools like Vite and a passion for exploring new technologies.
• Understanding of Git version control and experience with GitHub workflows.
• Strong communication and collaboration skills to work effectively with cross-functional teams.
• Advanced knowledge in web security best practices to write secure and robust front-end code
• Ability to write clean, maintainable, and well-documented code.
• Passion for building high-quality user experiences.
• Experience mentoring junior engineers.
• Active contributions to open-source projects in the front-end development space.

Abilities and Traits

• Ability to work under pressure and meet deadlines
• Ability to provide exceptional attention to details of the product.
• Ability to focus for extended periods of repetitious activity.
• Ability to think ahead and anticipate problems, issues and solutions
• Work well as a team player and help the team members to resolve issues
• Be committed to quality and be structured in approach
• Excellent and demonstrable concept formulation, logical and analytical skills
• Excellent planning, organisational, and prioritisation skills

If you're a talented and experienced frontend engineer who is passionate about building beautiful, performant, and scalable web applications, we want to hear from you!

Location - Chennai - India

Join our team and let's groove together to the rhythm of innovation and opportunity!

Your Buddy

Tazapay

• We are looking for a JavaScript developer who is proficient with React.
• Your primary focus will be on designing and developing products using Core UI and React.
• Should have good hands on experience in node, sass, javascript ES6,laravel concepts

Few words about Unify Technologies: Unify a Digital Engineering company. We help our clients by providing Digital Engineering Services to develop high-quality products. We have extensive experience in software product engineering and a successful track record of delivering on aggressive delivery plans without compromising on the quality in Cloud, Mobile, and Data practices.

Employment Type: Full-Time

Position: Sr. SDE and Lead SDE (Software Development Engineer)

Job Location: Hyderabad

Experience:

• ReactJS Jr Developer: 2-4 Yrs

• ReactJS Sr Developer: 4-8 Yrs

• ReactJS Lead Developer: 7-12 Yrs

Key Skills:

• ReactJS Jr Developer: (Must: ReactJS+JavaScript Programming Experience+UI)

• ReactJS Sr Developer: (Must: ReactJS+JavaScript Programming Experience+UI)

• ReactJS Lead Developer: (Must: Team Lead Experience + ReactJS+JavaScript Programming Experience+UI)

• NOTE: For the Lead Developer Team leading exp is Must

Project: Product-Online Marketing, E-commerce Platforms and AI, Predictive Analytics

Joining time: Immediate to 30 days

Education: Master’s/Bachelor’s degree in Computer Science, Statistics, Engineering or a related technical discipline will be preferred

Skills Required for Front End UI (ReactJS) Sr Developer/Lead Developer:

• Strong Experience in ReactJS/VueJS and JavaScript Programming

• Strong knowledge of HTML/CSS Page Designs, DOM, HTTP protocol and how the web works in general.

• Integrating with Backend Rest APIs

• Experience using libraries and frameworks like React, Redux, GraphQL and TypeScript. 

• Experience building server-side APIs and proxies using Node.js.

• Strong Knowledge of managed and performance-oriented code with React and Redux, Mobx, Mobx-state-tree 

• Good to have knowledge (Not must) with the SEO process

• Build pixel-perfect, buttery smooth UIs across both mobile platforms.

• Experience designing and building complex UI applications and implementing individual services that participate healthily in a microservice architecture.

• Ability to write well-documented, clean JavaScript code

• Familiarities with native Build tools, like XCode, Gradle and other required Build tools

• Understanding of REST APIs, the document request model, and offline storage

• Leverage native APIs for deep integrations with both platforms.

• Diagnose and fix bugs and performance bottlenecks for performance that feels native.

• Maintain code and write automated tests to ensure the product is of the highest quality.

Responsibilities:

• Design, build, review and evolve durable, highly scalable event-driven infrastructure

• Architect and lead the development of backend services.

• Work with REST APIs and integrating them with our software platform

• Develop front end capabilities such as dashboards, visualizations, features

• Work on building best performance UI features and linking with backend

• Integrate all the front end features with a backend pipeline 

• Integrate our AI models with the platform pipeline 

• Work on bug fixing and improving application performance 

• Unit-test code for robustness, including edge cases, usability, and general reliability

• Own new initiatives, Debug production issues

• Help define the way we work in the future including coding and design standards

• Work effectively in an agile development process

• Research cutting edge technology that can be applied to accelerate business growth

• Be the communication bridge be product owners and development teams