FrontEnd Developer at ProofofSkill · Mumbai · 3 - 5 years · ₹15L - ₹24L / yr · Raised funding · Posted 5 May 2025

**TL;DR:** Seeking an experienced Front-end Developer proficient in React and Next.js to build user-friendly interfaces for Proof of Skill, a blockchain-based protocol for skill verification and credentialing.
Proof of Skill protocol is a decentralized system where industry experts (Validators) evaluate candidates' skills and issue verifiable Skill Credentials. Organizations can then shortlist candidates based on these credentials.
**Qualifications and Skills:**
5+ years of experience in front-end development, with a strong focus on React and Next.js
Proficiency in JavaScript, HTML5, CSS3, and related front-end technologies
Solid understanding of React ecosystem, including Redux, React Router, and React Hooks
Experience with Next.js and its server-side rendering (SSR) and static site generation (SSG) capabilities
Familiarity with modern front-end build tools and workflows (e.g., Webpack, Babel, ESLint)
Knowledge of responsive design and cross-browser compatibility
Experience with RESTful APIs and integration with back-end services
Familiarity with web accessibility standards (WCAG) and best practices
Understanding of blockchain technology and decentralized applications (dApps) is a plus
**Responsibilities:**
Design and develop user-friendly interfaces for the Proof of Skill platform using React and Next.js
Implement reusable and modular front-end components following best practices
Integrate with blockchain-based back-end services and decentralized data sources
Optimize performance, scalability, and security of the front-end applications
Collaborate with the design team to ensure pixel-perfect implementation of UI/UX designs
Write clean, maintainable, and well-documented code
Participate in code reviews and ensure adherence to coding standards
Stay up-to-date with the latest front-end technologies, frameworks, and industry trends
**Ideal Candidate Traits:**
Strong problem-solving and analytical skills
Excellent communication and collaboration abilities
Attention to detail and commitment to writing clean, efficient code
Passion for creating intuitive and engaging user experiences
Entrepreneurial mindset and willingness to take ownership
Curiosity and eagerness to learn and grow in a dynamic environment
Experience building for crypto is a huge plus

Similar jobs (10)
Job Description:
https://drive.google.com/file/d/12Fcie5u0rhyHeE_xhsNTeGk3mlPId1Mb/view?usp=drive_link
Frontend Developers
- Contract To Hire (Initial Engagement: 6 months)
Experience: 5+ years
Mandatory Skills:
● React.js
● React Native
● JavaScript
● Experience in developing scalable and maintainable web and mobile applications
● Frontend architecture and reusable components
● State management
● REST API/backend service integration
● Application performance optimisation
● Authentication/authorisation and frontend security
● Git and pull-request-based development
● Clean, reusable and testable code
● Agile/product development experience
● Code reviews, debugging and production issue resolution
Good to have:
● TypeScript
● Next.js
● Jest / React Testing Library
● CI/CD
● Application monitoring
● Mobile deployment
NEED TO HAVE :
1) Have some knowledge of front end like React.JS
2) HTML, CSS
3) Strong in JavaScript concepts
4) Good communication skills
5) Loves to code
GOOD TO HAVE :
1) Experience with type script will be a plus
2) Experience with Nest.JS framework will be a plus
3) Strong hold on ES6 principles.
4) Familiar with TDD ( Test Driven Development ) will be a plus.
5) Familiar with working in CI / CD will be a plus
6) Micro-Service architecture knowledge will be an added benefit.
You can contact me on this WhatsApp number: Nine three one six one two zero one three two
Job Title: Senior React.js Developer (Immediate Joiner)
Location: Bangalore
Experience: 5+ Years
About the Role
We are looking for a skilled React Developer with 5+ years of experience to join our team immediately. The ideal candidate should have strong expertise in React.js along with a basic understanding of Angular. You will be responsible for developing user interface components and implementing them following well-known React workflows.
Key Responsibilities
- Develop and maintain responsive web applications using React.js
- Build reusable components and front-end libraries for future use
- Translate UI/UX designs into high-quality code
- Optimize applications for maximum performance across devices and browsers
- Collaborate with backend developers and cross-functional teams
- Participate in code reviews and ensure best practices are followed
- Assist in debugging and resolving technical issues
- Work on minor enhancements or support tasks in Angular-based modules (if required)
Required Skills & Qualifications
- 5+ years of hands-on experience in React.js development
- Strong proficiency in JavaScript, HTML5, CSS3
- Experience with state management libraries (Redux / Context API)
- Familiarity with RESTful APIs and integration
- Basic knowledge or exposure to Angular
- Understanding of responsive design and cross-browser compatibility
- Good problem-solving and communication skills
Preferred Skills
- Experience with TypeScript
- Knowledge of modern front-end build pipelines and tools (Webpack, Babel, etc.)
- Familiarity with version control systems like Git
Joining Requirement
- Immediate joiners or candidates with short notice period (0–15 days) preferred
Role : Senior Full Stack Engineer (Frontend Focus)
Location : Hyderabad/Bangalore/Gurgaon/Mumbai
Role Summary
We're looking for a **Senior Full Stack Engineer (Frontend Focus)** to build modern, AI-powered enterprise applications. You'll primarily focus on creating scalable, high-performance frontend experiences using React and Next.js, while contributing to backend services, APIs, and AI integrations where needed. You'll work closely with Product, Design, and AI teams to build intuitive, performant, and production-ready applications.
Minimum Qualifications
* 3–7 years of software engineering experience.
* Strong experience with React, Next.js, TypeScript, JavaScript, HTML, and CSS.
* Experience building and shipping production-grade frontend applications, including enterprise dashboards and data-intensive applications.
* Strong understanding of frontend architecture, state management (Redux, Zustand, Context API, or similar), rendering lifecycle, and performance optimization, including code splitting, lazy loading, bundle optimization, caching strategies, and Core Web Vitals.
* Experience building complex UI experiences using modern frontend technologies, including data visualization, Canvas, WebGL, Service Workers, and Web Workers.
* Experience building and integrating REST APIs and backend services using Node.js.
Preferred Qualifications
* Experience building AI-powered applications or AI agents using LangChain, LlamaIndex, CrewAI, or similar AI frameworks.
* Experience with vector databases and Retrieval-Augmented Generation (RAG) applications.
* Experience with DevOps practices and cloud platforms such as AWS, Azure, or GCP.
* Experience with Docker and Kubernetes.
* Experience building reusable component libraries, design systems, or micro-frontend architectures.
Role Summary
The Senior Front-end Developer builds and maintains client-facing interfaces per UI/UX designs and product requirements, owns front-end architecture and code-review standards, and mentors the Junior Front-end Developer. This is a specialized front-end role, not a full-stack position.
Key Responsibilities
• Own front-end architecture decisions, including framework, state management, and tooling choices.
• Set and enforce code-review, testing, and performance/accessibility standards for the pod.
• Lead implementation of complex, high-visibility features.
• Troubleshoot and resolve complex front-end performance or technical issues.
• Mentor the Junior Front-end Developer, including code review and skill development.
• Partner closely with UI/UX to ensure design fidelity and flag implementation constraints early.
• Evaluate and recommend front-end tooling or library upgrades.
Required Skills & Technical Competencies
• Deep expertise in a modern front-end framework (React strongly preferred) and associated ecosystem.
• Strong understanding of front-end performance optimization and accessibility standards.
• Experience owning front-end architecture for a production application.
Targeted Qualifications
• 5–8 years of front-end development experience.
• Deep expertise in a modern framework (React preferred) and front-end architecture patterns.
• Experience owning performance and accessibility standards.
• Bachelor's degree in Computer Science or related field.
Preferred / Nice-to-Have
• Experience with data-dense or real-time dashboard interfaces (relevant to IoT products).
• Experience mentoring junior developers formally.

We have an existing academic journal publishing and management platform developed using:
- Next.js
- React
- Node.js
- PostgreSQL
- REST APIs
The platform is already functional and includes author, reviewer, editorial and admin workflows.
We are looking for an experienced Senior Next.js Developer / Frontend Tech Lead to work on an existing production application.
The primary requirement is to redesign and rebuild the frontend while reusing the existing backend, APIs, database and business logic wherever technically feasible.
This is not a greenfield project and we do not want unnecessary rewriting of the existing backend.
Key Responsibilities
- Study and understand the existing Next.js application and architecture.
- Review existing APIs and backend integration.
- Develop a completely redesigned, professional academic/publishing frontend.
- Convert Figma designs into clean, responsive Next.js interfaces.
- Integrate the new frontend with existing Node.js APIs.
- Maintain existing workflows and functionality.
- Work on author, reviewer, editor and admin dashboards.
- Develop responsive interfaces for desktop, tablet and mobile.
- Improve frontend performance, usability and maintainability.
- Ensure proper authentication and role-based access handling.
- Identify frontend/backend dependencies that may require minor backend changes.
- Follow clean coding standards and reusable component architecture.
- Work through Git with proper commits, branches and code reviews.
- Coordinate with UI/UX designer and QA during development.
- Ensure the redesigned application is production-ready.
Existing Modules
The existing platform includes functionality such as:
- Author registration/login
- Manuscript submission
- Manuscript tracking
- Peer-review workflow
- Reviewer dashboard
- Editorial workflow
- Publication processing
- Payment-related workflows
- Article/publication management
- Journal management
- Certificates
- Referral/credit functionality
- Admin dashboard
- Reports and operational dashboards
The exact modules and workflows will be provided during the project.
Required Skills
Must Have
- 4+ years of professional React/Next.js experience
- Strong Next.js knowledge
- React + TypeScript
- JavaScript/TypeScript
- REST API integration
- HTML/CSS
- Responsive design
- Git/GitHub/GitLab
- Experience working with existing production codebases
- Good understanding of authentication and authorization
- Ability to understand backend APIs and database relationships
Good to Have
- Node.js
- PostgreSQL
- Tailwind CSS
- Next.js App Router
- Dashboard/SaaS application development
- Experience with complex multi-role applications
- Experience with academic, publishing, research or workflow-based platforms
What We Are Looking For
We are looking for someone who can understand an existing application before changing it.
You should be comfortable working with an existing codebase rather than expecting to rebuild everything from scratch.
Strong attention to:
- UI quality
- UX
- Performance
- Clean architecture
- Reusable components
- Security
- Cross-browser compatibility
- Maintainability
is required.
Important
- Existing backend and database should be reused wherever possible.
- Do not rewrite existing functionality without approval.
- Existing production data must not be modified or exposed.
- Development will be performed in a staging environment.
- Git-based development is mandatory.
- NDA and confidentiality agreement will be required.
- Ownership of the developed code and project deliverables will belong to the company.
Selection Process
Shortlisted candidates will first be asked to:
- Review the existing application architecture.
- Understand the existing APIs and workflows.
- Identify what can be reused and what needs modification.
- Complete a small paid technical task.
- Discuss the proposed development approach and timeline.
Candidates who demonstrate strong understanding of the existing system will be preferred.
Key Responsibilities
Frontend & Extension Development
• Build and maintain highly responsive, modern user interfaces using React.js for web applications, browser extensions, and Electron-based desktop clients.
• Architect and develop modular, reusable UI components using Material-UI (MUI / Joy UI) and styled-components/Emotion.
• Manage complex multi-target build pipelines (Web, Extension, Electron) using Webpack and Craco.
AI Integration & Engineering
• Seamlessly integrate Generative AI capabilities into the frontend, including AI-driven chatbots, contextual AI suggestions, and RAG (Retrieval-Augmented Generation) interfaces.
• Collaborate closely with backend and AI specialists to consume AI-powered REST APIs and WebSocket streams, ensuring fluid and responsive user experiences.
• Implement robust markdown and code rendering (e.g., react-markdown) for rich AI conversational outputs.
Real-Time Data & State Management
• Implement low-latency, real-time communication features using Socket.IO for chat and collaborative functions.
• Efficiently manage complex application state, data fetching, and caching using modern tools like React Query and Axios.
Quality & Collaboration
• Work within a monorepo/workspace structure to maintain distinct client, component, and extension packages.
• Participate in code reviews to maintain high code quality, performance, and enterprise security standards.
• Collaborate with teams using Agile/Scrum methodologies for rapid and structured delivery.
Required Skills:
• Core Languages: Proficiency in JavaScript (ES6+) and TypeScript.
• Frontend Frameworks: Strong, hands-on experience with React.js (Hooks, Context), React Query, and React Router.
• Styling & UI: Deep understanding of HTML5, CSS3, and CSS-in-JS libraries (e.g., styled-components, react-jss). Hands-on experience with MUI (Material UI / Joy UI) is highly preferred.
• Architecture & Build: Experience configuring and optimizing builds with Webpack and Craco. Familiarity with npm workspaces/monorepos.
• Real-time & APIs: Ability to design and implement robust client-side integrations with RESTful APIs and WebSockets (Socket.IO).
• Agile & Workflow: Experience working with Agile and Scrum methodologies.
Preferred/Bonus Skills:
• Experience in building and packaging Browser Extensions and/or Electron applications.
• Genuine curiosity and awareness of Generative AI workflows (e.g., prompt engineering concepts, handling streaming AI responses).
• Experience with rich text editing or markdown rendering in React.
About the team
SecurITe’s mission is to build an Agentic‑AI driven security platform that protects critical infrastructure from modern cyber threats. Our focus is on delivering highly performant, resilient, and intelligent network security systems that help defenders stay ahead of adversaries.
About the Role
We’re looking for an exceptional Front-End Developer to help lead the development of our next‑generation cybersecurity AI platform. This is a rare opportunity to shape how agentic AI transforms the future of cyber defense.
In this role, you will be instrumental in bringing our innovative Agentic graphical programming language to life. As a senior front-end developer, you will work closely with our systems architect to shape the technological direction of our project. Your responsibilities will include ensuring that our user interface is both functional and visually appealing, contributing to an exceptional user experience.
What You’ll Do
● Collaborate with the systems architect and development team to design and implement a robust front-end architecture.
● Develop, test, and maintain high-quality user interfaces using modern front-end technologies.
● Translate UI/UX design wireframes into code, producing visually appealing and user-friendly interfaces.
● Ensure the technical feasibility of UI/UX designs and optimize applications for maximum speed and scalability.
● Identify and troubleshoot front-end issues and implement effective solutions.
● Stay up-to-date with the latest industry trends and technologies to keep our product at the cutting edge.
● Own and drive project delivery end-to-end
● Guide and mentor other engineers to ensure high-quality code and best practices
Required Experience
● Proficiency in Languages HTML5, CSS3, and Angular 17+.
● Frameworks node.js, Flask, RESTful APIs, Strapi (CMS) ,Swagger/OpenAPI and related front-end technologies.
● Experience with front-end frameworks and libraries for Angular.
● Strong understanding of responsive design and mobile-first development.
● Knowledge of version control systems (e.g., Git).
● Excellent problem-solving and debugging skills.
● Strong communication and collaboration skills.
● Bachelor’s degree in Computer Science, Information Technology, or a related field.
● 15+ years of experience as a Front-end Developer, with a demonstrated track record in federal projects.
Nice to Have
● Advanced Skills: Experience with state management patterns (Redux, NgRx, Zustand) and building custom interactive components using SVG, Canvas, or libraries like GoJS, D3.js and React Flow.
● Experience working in cybersecurity products.
● Building enterprise UI/UX.
● Using AI for daily work.
● Early stage startup experience.
The Mindset
● Problem Solver: You thrive on complex, ambiguous challenges and engineer elegant solutions.
● Ownership‑Driven: You take initiative, move fast, and deliver outcomes without hand‑holding.
● Continuous Learner: You stay ahead of the curve in AI, ML, and emerging technologies.
● Startup DNA: You excel in fast‑moving environments where priorities evolve and impact is immediate.
Responsibilities:
- Developing and implementing UI components using React.js
- Collaborating with cross-functional teams to design and ship new features
- Building reusable components and front-end libraries for future use
- Translating designs and wireframes into high-quality code
- Optimizing components for maximum performance across various web browsers
- Staying up-to-date with the latest industry trends and technologies
- Troubleshooting and debugging issues to ensure smooth user experiences
- Participating in code reviews to maintain code quality and consistency
Required React developer requirements, qualifications & skills:
- Proficiency in React.js and its core principles
- Strong JavaScript, HTML5, and CSS3 skills
- Experience with popular React.js workflows (such as Redux)
- Familiarity with RESTful APIs and integration
- Knowledge of modern authorization mechanisms, such as JSON Web Tokens
- Understanding of front-end build tools and pipelines
- Excellent problem-solving and communication skills
- A strong attention to detail, and a passion for delivering high-quality code
- Adaptability to changing project requirements and priorities
- Experience with version control systems (e.g., Git)
- A degree in computer science, software engineering, or a related field











