Frontend React JS Developer

🚀 Frontend Developer

Location: Remote

Type: Full-time

Experience: 5+ years (Intermediate to Senior Level)

We’re looking for a Frontend Developer who can own the entire frontend stack from frontend project architecture and performance optimization to design and UX polish.

About the Role

You’ll be the go-to person for everything frontend - designing and developing user-facing features, setting up UI architecture, and ensuring every interaction feels seamless.

You’ll work closely with the founders and backend engineers to shape the product experience from the ground up.

If you’re someone who thrives in startup environments, loves creative freedom, and enjoys wearing multiple hats (developer + designer + product thinker), this role is for you.

What You’ll Do

• Build and maintain high-performance web applications using ReactJS and NextJS
• Design clean, scalable frontend architecture and reusable components
• Take full ownership of UI/UX - from rough ideas to production-ready interfaces
• Implement stunning, responsive UIs with Tailwind CSS
• Handle state management (Jotai, Zustand, or your preferred modern library)
• Collaborate directly with backend and product teams to deliver delightful user experiences
• Optimize for performance, accessibility, and SEO
• Help shape the frontend culture, tech stack, and coding standards

What We’re Looking For

• 5+ years of professional frontend development experience
• Expert in ReactJS and NextJS
• Familiarity with VueJS and NuxtJS
• Strong experience with Tailwind CSS and component-driven design
• Strong understanding of UI/UX - you can design as well as build
• Ability to rapidly prototype and design mockups
• Experience with Figma or something similar for frontend prototyping
• Experience with TypeScript, Git, and modern dev tools
• Product mindset: you care about usability, not just code
• Startup-ready: self-driven, resourceful, and comfortable with fast iteration

Bonus Points

• Contributions to design systems or open-source frontend tools
• Familiarity with other frontend frameworks like Svelte/SvelteKit and VueJS/NuxtJS
• Knowledge of frontend performance optimization and SEO best practices

Why You’ll Love Working With Us

• 💡 Real Ownership: You’ll shape the entire frontend - architecture, tools, and design direction
• ⚡ Startup Energy: Small team, big impact - your work directly shapes the product and user experience
• 🕓 Flexible Hours & Remote Work: We care about output, not clock-ins
• ❤️ Creative Freedom: We value ideas, experimentation, and craftsmanship

Web Application Developer

Job Description

Educational Qualifications:

Post-Graduation (Preferred): MCA/MSc/M.Tech. (Computer Science, Information Technology, Electronics).

Graduation (Mandatory): BE/B.Tech. (Computer Science, Information Technology, Electronics).

Certifications:

Relevant certification(s) would be an added advantage

Total Experience:

5+ years

Positions:

2

Work Experience:

• 5+ years of experience with designing and building web applications using Java and Angular JS

• 3+ years of experience in writing JavaScript, CSS, and HTML

• 3+ years of experience in developing application codes and unit tests in AngularJS, Java Technologies, and Rest Web Services

• 3+ years of experience contributing to the architecture and design (architecture, design patterns, reliability and scaling) of new and current systems

• Experience developing complex software systems from the ground up, that have been successfully delivered to customers

• Proficient in CSS, HTML, and writing cross-browser compatible code

• Experience using JavaScript building tools like Gulp/ Grunt etc.

• Knowledge of JavaScript MV-VM/MVC frameworks including AngluarJS

• Experience in communicating with users, other technical teams, and management to collect requirements, describe software product features, and technical designs

• Experience in software processes, web services, multi-tiered systems, workflow modeling, systems testing, and enterprise application integration

Tools & Techniques:

• Strong experience with Java and Angular JS

• Strong experience with distributed (multi-tiered) systems, algorithms, and relational/non-relational databases

• Strong knowledge in OOPS concepts and very good debugging skills

Personality traits (desired):

• Excellent analytical and reasoning skills

• Excellent verbal and written communication skills

• Ability to communicate with both business stakeholders and technical teams

• Ability to take full ownership of tasks and willingness to learn and experiment with new technology

• Ability to synthesize requirements underlying feature requests, recommend alternative technical and business approaches, and facilitate engineering efforts to meet aggressive timelines

Responsibilities:

• Prepare technical requirements, software design specifications and unit test cases

• Design, code and modify webpages, from layout to function and according to the design specifications

• Upgrade, configure and debug existing web applications

• Create reusable, effective, and scalable code

• Identify bottlenecks and bugs in the system and develop solutions

• Adapt interface for modern internet applications using the latest front-end technologies

• Take ownership and responsibility of components/processes within the team

• Support other developers with code review, etc.

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 looking for an enthusiastic and skilled SDE 2 React Web Developer to join its dynamic engineering team. As an SDE 1, the developer will be responsible for building and maintaining user-facing features for the web platform using React. The developer will work closely with cross-functional teams to deliver high-quality, scalable, and efficient applications that offer an exceptional experience to Revv's users.

Responsibilities

• Develop responsive, user-friendly, and high-performance web applications using React.js and related technologies.
• Collaborate with product managers, designers, and other engineers to deliver new features and improve existing ones.
• Write clean, maintainable, and testable code, ensuring a high level of code quality.
• Optimize applications for maximum speed and scalability.
• Troubleshoot and debug application issues, ensuring a smooth user experience.
• Stay up-to-date with the latest industry trends and best practices in web development.
• Participate in code reviews and contribute to continuous improvement within the team.

Requirements

• Bachelor’s degree in Computer Science, Engineering, or a related field.
• Proficiency in React.js, JavaScript (ES6+), HTML5, and CSS3.
• Experience with state management libraries like Redux or Context API.
• Familiarity with version control systems, primarily Git.
• Knowledge of RESTful APIs and integrating them into front-end applications.
• Strong understanding of web performance optimization techniques.
• Basic experience with testing frameworks like Jest, Mocha, or Enzyme.
• Strong problem-solving skills and ability to work independently and as part of a team.

Responsibilities:

• Design, develop, and maintain user interfaces for the internal product suite.

• Collaborate closely with product managers and backend engineers to understand

requirements, translate them into user-friendly interfaces, and ensure a consistent

user experience across all products.

• Champion the technical feasibility of our UI/UX designs, ensuring seamless user experiences.

• Write clean, maintainable, and well-documented code adhering to best practices and coding standards.

• Conduct unit and integration tests to ensure code quality and functionality.

• Stay up-to-date with the latest UI development trends and technologies.

• Take initiative and ownership of assigned tasks, ensuring they are completed efficiently and to a high standard. 

Requirements/Qualifications

• Bachelors in any Computers stream or related fields

• Minimum 1+ years of experience as a UI Developer.

• Proficiency in Javascript,Node.js & any one of (Angular, Nextjs or React.js)

• Experience with unit and integration testing frameworks.

• Excellent communication and collaboration skills.

• Ability to work independently and as part of a team.

• A passion for modern web development practices and a drive to deliver high-quality

work.

• Good to have the Experience with responsive design and cross-browser compatibility.

• Lead multiple client projects in the organization. 
• Define & build technical architecture for projects. 
• Introduce & ensure right coding standards within the team and ensure that it is maintained in all the projects. 
• Ensure the quality delivery of projects. 
• Ensure applications are confirmed to security guidelines wherever required. 
• ​Assist pre-sales/sales team for converting raw requirements from potential clients to functional solutions. 
• Train fellow team members to impose the best practices available. 
• Work on improving and managing processes within the team. 
• Implement innovative ideas throughout the team to improve the overall efficiency and quality of the team. 
• Ensure proper communication & collaboration within the team 

• 5+ Years of experience in developing large scale applications. 
• Solid Domain Knowledge and experience with various Design Patterns & Data Modelling 
• Must be well-aware of the latest technological advancements for relevant platforms. 
• Should have Research Oriented Approach 
• Solid at Logical thinking and Problem solving 
• Solid understanding of Coding Standards, Code Review processes and delivery of quality products 
• Experience with various Tools used in Development, Tests & Deployments. 
• Sound knowledge of DevOps and CI/CD Pipeline Tools 
• Solid experience with Git Workflow on Enterprise projects and larger teams 
• Should be good at documentation at project level and code level 
• Should have solid experience with Agile Methodology and process 
• Should have good understanding on Software UX 
• Proficient with communication and good at making judgments 

Expected Outcomes

• Growing the team and retaining talent, thus, creating an inspiring environment for the team members. 
• Creating more leadership within the team along with mentoring and guiding new joiners and experienced developers. 
• Creating growth plans for the team and preparing training guides for other team members. 
• Refining processes in the team on a regular basis to ensure quality delivery of projects- such as coding standards, project collaboration, code review processes etc. 
• Improving overall efficiency and team productivity by introducing new methodologies and ideas in the team. 
• Working on R&D and employing innovative technologies in the company. 
• Streamlining processes which will result in saving time and cost optimization 
• Ensuring code review healthiness and shipping superior quality code 

• Unlimited learning and growth opportunities 
• A collaborative and cheerful work environment 
• Exceptional reward and recognition policy  
• Outstanding compensation  
• Flexible work hours  
• Opportunity to make an impact as your work will directly contribute to our business strategy.
  ​

At Nickelfox, you have a chance to craft a career path as unique as you are and become the best version of YOU. You will be part of a team with a ‘no limits’ mindset in an inclusive, people-focused culture. And we’re counting on your unique perspective to help Nickelfox grow even faster.  

Are you passionate about tech? Dedicated to learning? Come, join us to build an extraordinary experience for yourself and a dignified working world for all. 
 

What makes Nickelfox a great place for you?

In Nickelfox, you’ll join a team whose passion for technology and understanding of business has driven the company to serve clients across 25+ countries in just five years. We partner with our customers to fuel their growth story and enable them to make the right decisions with our customized technology services and insights. All in all, we are passionate to see our customers win the day. This is the reason why 80% of our business comes from repeat clients.  

Our mission is to provide dignified employment and an environment that recognizes the uniqueness of every individual and values their expertise, and contribution. We have a culture that encourages everyone to bring their authentic selves to work. Our people enjoy a collaborative work environment with exceptional training and career development. If you like working with a curious, youthful, high-performing team, Nickelfox is the place for you.

Job brief

• We are looking for a qualified Front-end developer to join our team.
• You will be responsible for building the ‘client-side’ of our web applications.
• You should be able to translate our company and customer needs into functional and appealing interactive applications.
• If you’re interested in creating a user-friendly environment by writing code and moving forward in your career, then this job is for you.
• We expect you to be a person, who is curious about new digital technologies and aspires to combine usability with visual design.

Responsibilities

• Use markup languages like HTML to create user-friendly web pages
• Maintain and improve website
• Optimize applications for maximum speed
• Design mobile-based features
• Collaborate with back-end developers and web designers to improve usability
• Get feedback from, and build solutions for, users and customers
• Create quality mockups and prototypes
• Help back-end developers with coding and troubleshooting
• Ensure high quality graphic standards and brand consistency
• Stay up-to-date on emerging technologies

Requirements

• Understanding of key design principles.
• Experience in HTML, CSS, JavaScript, and JS Frameworks like Angular, Backbone and React.
• Understanding of server-side CSS.
• Knowledge in responsive and adaptive design.
• Understanding of SEO principles.
• Good problem-solving skills.
• Excellent verbal communication skills.
• Good interpersonal skills.

• An ability to perform well in a fast-paced environment
• Excellent analytical and multitasking skills

1. Develop User interfaces for Modern Rich Internet Applications with the latest Front End Technologies Perform product analysis and development tasks of increasingly complex nature which may require extensive research and analysis.
2. Writing tested and documented JavaScript, HTML and CSS
3. Make design and technical decisions for AngularJS projects.
4. Ensuring high performance