Sr. Frontend Developer (Javascript)

Job Title : Frontend Developer (React + Three.js)

Location : Noida

Experience : 2+ Years

Job Description :

We are looking for a Frontend Developer with strong skills in React.js and Three.js to build interactive, high-performance 3D web applications. The role involves creating smooth 3D experiences, optimizing performance, and collaborating with cross-functional teams.

Key Responsibilities :

• Develop responsive and dynamic UIs with React.js/Next.js.
• Implement and optimize 3D visualizations using Three.js/WebGL.
• Manage 3D assets (GLTF/GLB, textures, compression).
• Ensure performance optimization, cross-browser compatibility, and scalability.
• Collaborate with designers and backend teams to deliver seamless experiences.

Required Skills :

• JavaScript/TypeScript, React.js/Next.js
• Three.js / WebGL for 3D rendering & interactions
• State management (Redux, Zustand, Context API)
• 3D asset pipeline (GLTF/GLB, textures, compression tools)
• Performance optimization (profiling, draw calls, FPS tuning)
• API integration (REST/GraphQL)
• Version control (Git)

Location: Mumbai

Experience Required: 2+ Years

Job Type: Full-Time

Notice Period: Immediate Joiners

About the Role

We are seeking a skilled and experienced Front-End Developer to join our product engineering team. The ideal candidate must have experience working in a product-based software development company and should have hands-on involvement in e-commerce platform projects.

Mandatory Criteria

• Candidate must be currently working or have prior experience in a product-based software development company
• Candidate must have worked on at least one e-commerce platform project (end-to-end involvement)

Key Responsibilities

• Develop and maintain responsive, high-performance web interfaces using React.js
• Translate UI/UX designs into pixel-perfect, reusable front-end components
• Optimize components for maximum performance and cross-browser compatibility
• Integrate front-end components with backend RESTful APIs
• Collaborate with design, backend, and QA teams to deliver seamless user experiences
• Participate in code reviews, testing, and agile development ceremonies

Required Skills

• Strong proficiency in JavaScript (ES6+), React.js, HTML5, and CSS3
• Experience with state management libraries such as Redux or Zustand
• Solid understanding of responsive design and cross-browser compatibility
• Familiarity with RESTful APIs and API integration
• Knowledge of version control systems like Git
• Understanding of performance optimization, debugging, and front-end testing practices

**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

Are you a software developer who possesses magical React skills? Do you enjoy crafting intuitive, responsive, and scalable user interfaces? If so, we want you to join our team at Portle!

As a software engineer at Portle, you will have the opportunity to:

• Work on challenging problems everyday
• Design and develop excellent user experiences using React
• Collaborate with other engineers to ensure that our codebase is scalable, maintainable, and easily readable
• Learn to balance the creation of tech debt with delivering business requirements
• Understand complex problems, break them down into smaller ones, and solve each modularly

We are looking for someone with the following profile:

• Expertise in data structures and algorithms (extremely important)
• Strong proficiency in HTML, CSS, and JavaScript
• Experience with React and its latest features, such as hooks
• Excellent communication skills and the ability to work in an unstructured startup environment

At Portle, we value self-motivated individuals who do not need supervision to perform at their peak levels. We're looking for someone who's passionate about React and loves to wield its magic to create amazing software. If you're a React Sorcerer who's ready to take on a new challenge, we want to hear from you! Apply today and let us see your sorcery in action!

Hello there! Infrrd here.

Haven't heard of us before? No problem. First off, it's pronounced In-fur-d.

We are the creators of a proprietary Intelligent Document Processing platform that automates data extraction from complex and messy unstructured documents. Something nobody has done before! And of course, were very proud of that.

For over a decade, we've been building expertise in Artificial Intelligence, Machine Learning, Deep Learning, Natural Language Processing, Neural Networks and much more. And what are we doing with this expertise?

Good question. We are building technology that is disrupting the data extraction space for 5+ years now. We have over 300 smart-as-a-whip colleagues working from all over the globe.

And now, we are on the lookout for a great UI Lead.

Must have skills:

1. 8+ years of experience in UI development.
2. Should have managed a team of 3-4 members
3. Proficiency in front-end web development tools, i.e., HTML, CSS, JavaScript, jQuery, and AJAX.
4. Experience in modern frameworks like Angular, React JS, Bootstrap, Node.js, etc.
5. Should have an eye for clean and artful design, possess superior UI skills and be able to translate high-level requirements into interaction flows and artifacts, and transform them into beautiful, intuitive, and functional user interfaces.
6. Demonstrated experience in developing and deploying high-volume, multi-tiered, distributed mission-critical applications.
7. Good understanding of creational and structural design patterns in JavaScript.

Nice to have skills:

1. Experience using Git version control software
2. Experience working in an Agile/Scrum development process
3. Create & Own design and development artifacts as per best SDLC practices.
4. Good understanding of Relational database experience and demonstrated abilities in SQL and data modelling is required.
5. Use Adobe Creative Suite programs, e.g., Photoshop, Illustrator to mockup UI elements. 6. Use visual aids such as wireframes, storyboards and UI flow charts, to plan and present user interface designs.

What you will do:

1. Create cross-browser, fully functional web pages using HTML5, CSS3, and JavaScript, while strictly adhering to accessibility and W3C web standards.
2. Collaborate with developers, product managers, designers, web publishers, producers and back-end engineers to support revenue operations and meet project deadlines.
3. Review new code (self and peer) following W3C web standards and strict QA guidelines.
4. Evaluate technical feasibility and offer suggestions & guidance for product development. Build proof-of-concept prototypes for new projects.
5. Create scoping timelines and development project plans for new projects.
6. Participate in interviewing, hiring, on-boarding, and training new employees.
7. Mentor development team members with less experience.
8. Recognize tool/system deficiencies and work with leadership to implement effective solutions.
9. Assist leadership in setting, documenting and communicating technical standards and processes to ensure they are followed.

And along with that, someone who is curious to learn, drives the whole team to perform better and is a cool person to work with. That is when we will make a great team together, right?

Looking forward to speaking with you.

• Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model

• Thorough understanding of React.js and its core principles

• Experience with popular React.js workflows (such as Flux or Redux)

• Familiarity with newer specifications of EcmaScript

• Experience with data structure libraries (e.g., Immutable.js)

• Knowledge of isomorphic React is a plus

• Familiarity with RESTful APIs

passion for all things JavaScript, having built complex single-page applications on React/Redux for at least 2 years.

Profound understanding of HTML, CSS, and browser capabilities to build beautiful, fast and snappy applications.

Comfortable with jest for writing unit and integration tests/puppeteer for e2e tests.

Curiosity to remain updated with the newest technologies and frameworks. Intuition for usability and UI design, with an ability to balance polish with the constraints of timing and scope.

Comfort with any of WebRTC/Backend Stack/React Native is a strong plus.

Most importantly, love coding and debugging gnarly problems! 

• 2-4 years of work experience, preferably in a startup
• An engineering degree preferably, from a top-tier school (or equivalent experience)
• Hands-on experience in the JavaScript ecosystem, libraries, and tooling (ES6/7), React.js, and Redux
• Knowledge of React Hooks is an added advantage.
• Expert knowwledge of HTML/CSS, web standards, best practices
• Good understanding of asynchronous request handling, partial page updates, and AJAX
• An experience of writing clean, well documented, semantic code with responsiveness and cross-browser compatibility in mind
• Ability to improvise, troubleshoot, and learn new skills on the job.
• Proficient understanding of code versioning tools, such as Git/SVN
• Excellent coding and debugging skills
• A passion and the ability to make beautiful, smooth, delightful web experiences
• A "Will Do" attitude

• A team of aces, from top-tier schools and startups, to work with
• A fast-paced, data-driven, and fun work environment
• A huge appetite for new, disruptive, creative, and implementable ideas
• An open work culture

• Competitive salary
• Great working environment, opportunity to work directly with the founders on very exciting real-life problems.
• Opportunity to grow really fast.
• Opportunity to hire a team & mentor them in the future.
• ESOPs

1. Shortlist
2. Intro call of 15min
3. Assignment
4. 1-2 Tech rounds
5. HR round
6. Offer rollout