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.

 Position: Software Engineer

Experience: 6-8yrs

Location: Bengaluru

We are a multi-award-winning creative engineering company offering design and technology solutions on mobile, web and cloud platforms.

We are looking for an enthusiastic and self-driven Test Engineer to join our team

Roles and Responsibilities:

• Design, develop, and implement scalable and responsive Angular applications, ensuring high performance and seamless user experience.
• Collaborate with cross-functional teams to understand project requirements and translate them into technical solutions.
• Identify and address bottlenecks, bugs, and other issues to ensure the smooth functioning of applications across various devices and browsers.
• Ensure alignment between design specifications and the final product, providing valuable input on the feasibility and implementation of design concepts.

Desired Profile:

• Possess a strong command of Reactjs , Angular framework concepts, including components, directives, services, and dependency injection.
• Demonstrate expertise in building modular, maintainable, and scalable frontend applications using Angular.
• Strong proficiency in JavaScript and Typescript, with a deep understanding of asynchronous programming, closures, and ES6+ features.
• Proficient in HTML5 and CSS3 to create well-structured and visually appealing user interfaces.
• Experience with responsive design principles to ensure a seamless user experience across various devices and screen sizes.
• Experience with testing frameworks and methodologies for frontend development, including unit testing and end-to-end testing.

About the company and work culture:

You will love working with CodeCraft ☺

• Our projects are fast paced. Everyone is expected to take ownership of the work assigned and are accountable for the same.
• We love to work with people who are proactive, Solution providers and are contributing positively.
• The office has an open culture.
• We encourage leadership development.
• We have good long-term benefits, a yearly vacation, and good opportunities to learn new skills and grow.
• We have worked with the #1 Sports stadium in the world and developed solutions used by NFL, NBA, and Soccer teams.
• We are currently working with clients on the Forbes list USA. One of them is the youngest RE billionaire in the USA.
• Our clients include a few fortune companies.
• We have developed solutions featured by Apple and Microsoft.
• We won all the entries sent to design awards including a few Indian and International design awards.
• We are working with one of the 50 largest employers of NYC in the healthcare domain.
• We are working with both emerging and very successful start-ups globally.Design Awards:
• India's Best Design Project Award, IBDA 2018. The jury was from 11 countries. We had 2 entries and won both.
• 11th International Design Awards, LA. There were 3200 entries from 95 countries. We won Silver in design for Society Category.
• India's Best Design Project Award, IBDA 2017. The jury was from 10 countries.
• Finalist at Design4India- NASSCOM event.

Who are we?  

Whatfix is the #1 Digital Adoption Platform (DAP) for Enterprises. We are disrupting the way Learning, Training and Application Support content is consumed. We provide large enterprises with a SaaS platform that helps accelerate product adoption and reduce support & training efforts by providing contextual and step by step guidance inside any web application at the exact time a task is being performed. The product has redefined the way companies onboard, train, and provide support to users. 

What sets us apart from the rest?

With over 100 of the Fortune 500 companies already onboard as customers, Whatfix has been named among the top 20 B2B tech companies alongside the likes of Adobe, PayPal, and Cisco.

With a YoY growth of 300%, we have also been recognized among the top 50 fastest growing SaaS companies worldwide in the SaaS 1000 list and as a Market Leader by Gartner in the Digital Adoption space. 

We are pleased to have an Employee rating of 4.6 on https://www.glassdoor.co.in/Reviews/Whatfix-Reviews-E1016569.htm" target="_blank">Glassdoor and our Customer obsession can be seen in our reviews on platforms like https://www.g2.com/products/whatfix/reviews" target="_blank">G2 Crowd & https://www.gartner.com/reviews/market/customer-communications-management-software/vendor/whatfix/product/whatfix" target="_blank">Gartner Peer Insights.

The employees are happy, the customers are happy, but what about the investors? Take a look for yourself - http://www.sequoiacap.com/" target="_blank">Sequoia Capital || http://www.stellarisvp.com/whatfix-what-we-learnt-from-series-a-to-series-b-in-a-saas-business/" target="_blank">Stellaris || https://blogs.cisco.com/innovation/tomorrows-customer-experience-why-cisco-invested-in-whatfix" target="_blank">Cisco || https://eightroads.com/en/news/our-investment-in-whatfix" target="_blank">Eight Roads || http://www.helionvc.com/blog/we-are-pleased-collaborate-whatfix.html" target="_blank">Helion Ventures

“Hustle Mode ON” is something we live by.

Our Team:

The Engineering team at Whatfix provides end-to-end engineering throughput that forms part of core platforms and services that drive Whatfix's business.

Our team is responsible for creating the Customer Platform and everything around it - be it Analytics, Infrastructure, or Core Algorithms. The team owns and is responsible for all pieces that we design, build and support end to end for Whatfix product/ business.

Our product is built around a core of JAVA with enterprise businesses using the Whatfix system. On a monthly basis, millions of interactive guides are processed. Building, testing, and deploying to any of our environments are as simple as pushing a commit to a git branch. We like to keep our technology up-to-date. All of the technology is built and maintained by this small development team, so from day 1, the software you write will be used by people from all over the world.  

RESPONSIBILITIES:

• Design and develop highly scalable, reliable, and fault-tolerant systems for one of the world’s fastest-growing startups
• Work with business to define requirements
• Perform technical design and hands-on coding for development and enhancement efforts
• Develop new user-facing features
• Building reusable code and libraries for future use
• Ensure the technical feasibility of UI/UX designs
• Optimize applications for maximum speed and scalability
• Assure that all user input is validated before submitting to back-end services
• Promote best practices in design and coding
• Conduct design and code reviews
• Understand the customer needs & implement
• Articulate complex problems communicating viable architecture and design approaches in a clear and concise manner
• Enhance the agile SDLC within the Development Team through new learning, continued growth, and applying industry best practices and processes
• Occasionally participate in customer demos & provide inputs wherever required
• Keep optimizing & automating mundane tasks

You'll be a core member of the team.

Individual growth is important to us. We schedule time every week to explore an interest or learn something new. Team members have also used it to do everything from learning new algorithms to playing with the new framework, to exploring what the new analytics layer could be used for. We also take some time each day to discuss what we're working on, and even pair programs to teach each other about parts of the codebase. There's no risk of stagnation in this job, you would still be hands-on after a few years.

REQUIREMENTS:

We are looking for a Front-End Engineer to help us scale and go deep on our technical capabilities.

• 4 -12 years of professional front-end development experience
• Hands-on experience with Front end technologies - JavaScript, Typescript, HTML, CSS
• Experience with React Ecosystem (React Router, Styled-components, Server-side rendering, Context API, React Hooks) is strongly preferred
• Experience with state management libraries such as Redux is a huge plus.
• Proficient understanding of cross-browser compatibility issues and ways to work around such issues
• Experience in backend programming languages such as Java is strongly preferred 
• Experience in building Web applications using frameworks like Spring, Microservice architecture
• Work experience, preferably from internet companies, products, or startups
• Expertise in design principles and their application
• Strong verbal and written communication skills
• Fast Learner & a Team Player

We are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.

FrontEnd Developer

Job Description

Introduction-:

Synapsica is a growth stage HealthTech startup founded by alumni from IIT Kharagpur, AIIMS New Delhi, and IIM Ahmedabad. We believe healthcare needs to be transparent and objective, while being affordable. Every patient has the right to know exactly what is happening in their bodies and they don’t have to rely on cryptic 2 liners given to them as diagnosis. Towards this aim, we are building an artificial intelligence enabled cloud based platform to analyse medical images and create v2.0 of advanced radiology reporting. We are backed by YCombinator and other investors from India, US and Japan. We are proud to have GE, AIIMS, the Spinal Kinetics as our partners.

Your Roles and Responsibilities

Who can apply:

We are looking for a passionate, self-starting, competent professional who is comfortable with all aspects of software development in FrontEnd. You will get hands-on experience in the latest technology and skills such as ReactJS, VueJS, VanillaJS etc. This role is ideal for you if you have a background in Front End development and are looking for ­­­­­the next level of career growth and competence in interface design and development.

What will you do:     
                  ­­­­

• Responsible for  developing, testing and maintaining the  front-end of the product interface.
  
  
• Interacting with APIs and middlewares through Front-end action items.
  
  
• Ensuring responsiveness and cross-platform compatibility of applications.
  
  
• Owning and delivering end-to-end products, features, enhancements
  .
• Write clean, well-documented and functional code with unit test cases.

Required Skills and Technologies

• Degree in Computer Science or related discipline with 3-7 years of experience.
• Proficiency with VanillaJS, html and css, and fundamental front-end libraries and frameworks such as ReactJS, AngularJS, Vue.JS, .
• Hands on with React.JS or similar frontend framework/library.
• Well versed with UI and UX.
• Good to have knowledge of CI/CD tools.
• Hands on with investigating and fixing technical bottlenecks and performance assessment and improvement.
• Familiarity with agile methodologies.
• Prior experience with at least one no-sql database such as MongoDB.
• Excellent verbal communication skills.
• Good problem solving and troubleshooting skills.
• High sense of ownership along with deep interest and passion for technology.

• Build responsive web-pages
• Experience in Javascript, jQuery, CSS, HTML5
• Expert in JavaScript who can build up a JavaScript framework from scratch.
• Possess good knowledge in front-end performance tuning.
• Understands how to use the page speed tool and tackle on issue based on its suggestions.
• Consume REST API's provided by the backend team
• Experience in some modern JavaScript framework like easyUI or reactJS would be a plus

• Architect, Design, implement, and deploy solutions that are reliable and perform at scale in multi-tenant environment.
• Collaborate with UX design group and convert the design to actual UI components and pages to delight users of our cloud platform
• Evaluate technology and make choice based on performance, scalability, security and future expansion.
• Work with different stakeholders within and outside the team in a highly collaborative environment.
• Working with rapid and innovative development methodologies like: Kanban, Continuous Integration and Daily deployments
• Engage with Product Management and Business to create Product roadmap, own technical backlog and roadmap for technology supremacy.
• Continually learn about new technologies, generate new ideas and improve the use of technology in the product.
• Driving various organization wide activities like Hackathon, Ideathon, brown bag sessions and technical blogs

• Strong experience in Information Architecture and UI Design experience in delivering concepts, wire frames, prototypes, and compelling visual experiences.
• Possess the knowledge of the Graphic Design, Usability and ability to apply strategic thinking to deliver exceptional end to end user experience
• Expert understanding of strong Standards Based HTML Development as also strong JavaScript and JS libraries / UI Frameworks like Prototype.js, DHTMLX, ExtJS, JQuery (one Framework at the least is a must)
• Strong experience in Vue.JS/Backbone.JS or similar.
• Strong in CSS and AJAX / XML / XSLT / DOM / JSON
• Should have fundamental understanding of JavaScript - OOPs
• Understand Cross Browser issues and client side cookie
• Would expect the successful candidate to be highly proficient in Web Standards including W3C and WCAG
• Possess strong and relevant exposure to Web Accessibility/ Usability
• Would require to be intimately familiar with defining UI Specifications / Guidelines
• Would be essential to possess knowledge of web-based technologies and their impact on the feasibility of design solutions, including the capabilities and limitations of Web Technologies
• Experience in the Retail Domain or working on building Analytical Tools would be a plus
• Very good written and verbal communication skills
• Experience working with Agile development environments

• Design and code features for the website application as per the specifications provided by the Product and Design teams.
• Ship features in fast-moving agile sprints.
• Work closely with Backend, Product Design, and Product Management teams to brainstorm and chalk out details of features.
• Ability to build a feature from scratch & drive it to completion

Must have:

• Good understanding of Javascript and Clean architecture.
• Good understanding of asynchronous programming, callback, and closures.
• Strong experience with Javascript frontend framework/libraries like ReactJS
• Understanding of stateless application
• Good knowledge of CSS and its pre-processors like SASS/LESS
• Good understanding of server-side templates.
• Experience with creating cross-browser compatible web apps
• Should be Strong in MySql / Postgres database.
• Stronghold in Data structure and processing JSON

Good to have

• Basic knowledge of CI, CD
• Intermediate knowledge in any cloud services(AWS, GCP)
• Familiar with testing frameworks like Mocha, Cypress

• If you are interested in creating a user-friendly environment by writing code and moving forward in your career, then this job is for you.
• Collaborate with back-end developers and web designers to improvenusability.
• Writing tested and idiomatic JavaScript, HTML and CSS.
• Present key milestone deliverables to peers and execute level stakeholders.
• Build reusable code and libraries for future use.
• Tech-savvy professional, who is curious about new digital technologies and aspires to combine usability with visual design.

1. Bachelor's Degree in Computer Science
2. 1-5 years of professional software development experience
3. Experience with ES2015+, React, Webpack/Rollup, CSS, Node.js, Object oriented JS, FP in JS, TDD/BDD, Git, CSS
4. Ability to write clean, effective code
5. Strong problem solving and troubleshooting skills
6. Ability to work independently in a fast-paced environment with frequent production releases
7. Understanding of performance and efficiency with a strong customer focus
8. Work cross functionally to collaborate with designers o iterate on the design and implementation of our product
9. Be empathetic towards customers and appreciate the user's experience