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.

As ReactJS Web App Staff Engineer, you will play a key role in building a product that will impact the way users experience Yoga and Fitness. Working closely with our CTO, head of engineering and our wider technical and product leadership you will help solve for securing the performance, experience and scalability of our product. With your erudite experience, you will play a key part in our product and growth roadmap.

Key Responsibilities

• At least 5 years of experience in product development in ReactJS, with strong understanding of the technology and familiarity with latest trends in web app technology developments.
• Design, develop, and maintain scalable frontend applications using ReactJS, JavaScript/TypeScript, and modern frontend technologies, ensuring optimal performance, responsiveness, and seamless user experience across all platforms.
• Lead the architecture and implementation of new features, driving projects from concept to deployment.
• Optimize applications for performance, responsiveness, and cross-browser compatibility.
• Implement robust security and data protection measures to safeguard critical information.
• Contribute to technical decision-making and architectural planning, ensuring long-term scalability and efficiency.
• Create and maintain clear, concise technical documentation for new systems, architectures, and codebases. Lead knowledge-sharing sessions to promote best practices across teams.
• Provide technical leadership to a team of engineers, guiding them through complex problem-solving, architectural decisions, and best practices. Mentor junior engineers and lead code reviews to ensure high standards of code quality.
• Collaborate with cross-functional teams, including designers, product managers, and backend developers, to deliver exceptional user experiences within reasonable timelines.
• Integrate with RESTful APIs, GraphQL, and other third-party services.
• Take ownership of critical incidents, performing root cause analysis and implementing long-term solutions to minimize downtime and ensure business continuity.
• Stay updated with emerging frontend trends and technologies, and recommend best practices.
• Ability to communicate clearly and effectively at various levels - intra-team, inter-group, spoken skills, and written skills - including email, presentation and articulation skills.

Required Qualifications

• Bachelor's degree in Computer Science, Software Engineering, or a related field.
• 6+ years of hands-on experience in frontend development with a strong focus on ReactJS.
• Extensive experience in designing, building, and optimizing large-scale frontend applications.
• Solid understanding of HTML5, CSS3, and modern JavaScript (ES6+).
• Experience with React Hooks, Redux, Context API, and advanced state management.
• Strong understanding of component lifecycle, functional programming, and design patterns.
• Strong knowledge of TypeScript and its advanced features.
• Familiarity with Tailwind CSS or other contemporary CSS frameworks is advantageous.
• Deep understanding of web performance optimization techniques.
• Experience using build tools such as Webpack or Vite.
• Strong understanding of microservices architecture and experience with API integration.
• Proven expertise in debugging, profiling, and performance tuning for ReactJS applications.
• Solid understanding of server-side rendering (SSR) and its benefits.
• Experience with version control systems (e.g., Git).
• Strong knowledge of SEO best practices and implementation.
• Experience with testing frameworks (e.g., Vitest, React Testing Library).
• Familiarity with containerization (Docker) and cloud platforms (AWS, Azure, GCP) is beneficial.
• Proven ability to solve complex engineering problems with innovative solutions and practical thinking.
• Strong leadership and interpersonal skills, with the ability to work cross-functionally and influence technical direction across teams.
• Excellent communication skills, capable of conveying complex technical concepts to diverse audiences.

Benefits:

• Competitive salary and benefits package.
• Opportunities for career advancement and professional growth.
• A supportive and dynamic team environment where innovation and creativity are encouraged.

About Company:

MyYogaTeacher is a fast-growing health tech startup with a mission to improve the physical and mental well-being of the entire planet. We are the first online marketplace to connect qualified Fitness and Yoga coaches from India with consumers worldwide to provide personalized 1-on-1 sessions via live video conference (app, web). We started in 2019 and have been showing tremendous traction with rave customer reviews.

• Over 200,000 happy customers
• Over 335,000 5 star reviews
• Over 150 Highly qualified coaches on the platform
• 95% of sessions are being completed with 5-star rating

Headquartered in California, with operations based in Bangalore, we are dedicated to providing exceptional service and promoting the benefits of yoga and fitness coaching worldwide. To learn more about us, visit https://myyogateacher.com/aboutus

We put our employees' well-being at the forefront by providing competitive industry salaries and robust benefits packages. Were proud to foster an inclusive workplace and make a positive impact on the community. Additionally, we actively promote internal mobility and professional development at every stage of your career.

Read more on our mission and culture at https://myyogateacher.com/articles/company-mission-culture

Machint Solutions Private Limited, a US registered and a digital transformation organization that is into products and managed services, is seeking to hire a few experienced ReactJS Developers to play a crucial role in designing and building code across several new and existing software products and projects.

No. of positions: 8

React JS Exp.: 3 to 5 years

Overall IT exp: 5 to 10 years

Work from office: YES

Full time employment

Work Location: Whitefields, Hitech City, Hyderabad

Required qualifications and experience:

• Minimum 3 years of prior working experience as a react.js developer.
• In-depth knowledge of JavaScript, CSS, HTML, and front-end languages.
• Excellent knowledge of REACT tools including React.js, Webpack, Enzyme, Redux, and Flux.
• Experience with user interface design.
• Should be familiar with UI HTML, CSS, JavaScript, XML, and UI Frameworks like ReactJS, AngularJS, NodeJS etc.
• Hands-on experience with Oracle or SQL Server database.
• Knowledgeable in one of the Cloud Technologies – Azure / AWS / GCP / any Cloud space.
• Should be able to understand Scrum ceremonies and able to demonstrate experience in Agile
• Passion for technology and developing your technical skills.
• Result-oriented individual with the ability to work to deadlines, communicate, and work effectively with other team members.

Desired skills:

• Any knowledge of performance testing frameworks including Mocha and Jest is an advantage.
• having strong basics of core Java 8 - Basic Oops concepts, String, Collections, Exceptions, Interface, Inheritance is an advantage.
• Expertise in modern development principles of Spring Family viz., Spring Boot, Spring Core
• Experience in creating Microservice using REST & Spring Boot.
• Knowledge of advanced design patterns

• Work with Angular2, NodeJS, Meteor, and MongoDB as the stack to develop newer functionalities for our platform
• Deploy application on AWS/ Google Cloud infrastructure
• Monitor the application regularly and fix bugs
• Work with team to create scalable and robust infrastructure from experts
• No. of positions available: 2
• Skill(s) required : JavaScript, Node.js and Angular 2.0 (ref:hirist.com)

The ideal candidate will be responsible for designing, developing, testing, and debugging responsive web and mobile applications for the company. Using React Js, MySQL, JavaScript, HTML, and CSS, this candidate will be able to translate user and business needs into functional frontend design. 

Responsibilities

- Must have

    - Experience with React and Redux or similar programming

    - Experience in Rest API integration

    - Passionate about user experience

     - Android and IOS development

- Other requirements

    - Good knowledge of Javascript functions and operators

    - Responsibility for major tasks and chores

    - Willing to resolve technical debt in the early step

    - Good understanding of sprint cycle in agile

    - Can communicate with developers and non-developers

    - Can work independently but a great collaborator

    - Serverless API experience is not counted

    - Good to have Git workflow knowledge

    - Good to have Github collaboration experience

Qualifications

• Bachelor's degree or equivalent in Computer Science
• 2+ years experience in frontend development
• Familiarity using Scrum/Agile development methodologies
• Experience building object-oriented web applications in React Js, MySQL, JavaScript, HTML5, and CSS3

Currently We are Looking for a Front-End Web Developer who is motivated to combine the art of design with the art of programming. Responsibilities will include translation of the UI/UX design wireframes to actual code that will produce visual elements of the application. You will work with the UI/UX designer and bridge the gap between graphical design and technical implementation, taking an active role on both sides and defining how the application looks as well as how it works.

Responsibilities :

·         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

Experience & Skills :

·         Experience in coding using Angular, AngularJS, ionic framework mandatory.

·         Proficient understanding of client-side scripting and JavaScript frameworks, including jQuery, understanding of web markup, including HTML5, CSS3

·         Proficient understanding of client-side scripting and JavaScript frame

·         Good understanding of  advanced JavaScript libraries and frameworks, such as AngularJS

·         Good understanding of asynchronous request handling, partial page updates, and AJAX

·         Basic understanding of server-side CSS pre-processing platforms

·         Basic knowledge of image authoring tools, to be able to crop, resize, or perform small adjustments on an image. Familiarity with tools such as Photoshop is a plus.

·         Proficient understanding of cross-browser compatibility issues and ways to work around them.

·         Proficient understanding of code versioning tools, such as Git / Mercurial / SVN

·         Good understanding of SEO principles and ensuring that application will adhere to them

About us:  

We are a fiercely restless creative studio with a broad vision across design & product experiences. Big brands and startups approach us because they find a cool team of committed individuals with great taste, obsessed with technology, originality, music, art & quality. We believe in independence, curiosity, experimentation and reinvention as the beacons to navigate the world. Learn more about us: ​https://grappus.com/">https://grappus.com/ 

About the role:

We are seeking a Frontend developer who has a knack for coming up with creative solutions to unique problems. You should have good time management skills and be able to work both autonomously and collaboratively with a cross-discipline team of product managers, strategists, UX designers, art directors, and developers. Most importantly, you have an eye for detail and the ability to make beautiful designs come to life through code. 

What we’d like to see:

• Developing new user-facing features using React Native
• Building reusable components and 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
• Developing and implementing strong algorithms/techniques for solving problems in a high-volume, high-availability environment
• Good knowledge of User Interface patterns and techniques to solve common UI problems
• Solid understanding of building scalable, maintainable and efficient user interfaces

Must Have:

• Strong proficiency in JavaScript , the JavaScript object model and ES6
• Thorough understanding of React.js and its core principles
• Experience with state management libraries like Redux, Mobx etc.
• Familiarity with Android / iOS platforms and ability to link native libraries with React Native
• Familiarity with newer specifications of EcmaScript 6
• Experience with data structure libraries (e.g., Immutable.js, immer)
• 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
• 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, SVN, and Mercurial
• Familiarity with frameworks like Bootstrap, Backbone, Angular,  React JS, and libraries like jQuery, LESS and Ajax

Nice to Have:

• Personal projects or contributions to the open source community
• Strong organizational skills to juggle multiple tasks within the constraints of timelines
• Team player (those great personality types that people love to work with)
• Great communication skills 

Benefits of being part of our amazing team:

• Flexible working hours
• We don’t track your leaves & work-from-home
• Freedom to implement latest technologies & new ideas
• Lots of in-house training sessions &  an in-house product lab
• A pretty unique & unconventional culture and a damn cool office space
• Lots of ways to have fun - TT,  Indoor basketball, PS4, board games and variety of books to read