Frontend Developer

About the Role

We are seeking a creative and technically strong Frontend Developer with expertise in 3D animations to join our team. You will play a key role in building interactive, visually engaging, and high-performance web applications using modern frameworks and 3D libraries. This role involves close collaboration with designers, product managers, and backend engineers to deliver immersive digital experiences.

Key Responsibilities

• Develop and maintain responsive, user-friendly web applications.
• Implement 3D models, animations, and interactions using Three.js, WebGL, or Babylon.js.
• Collaborate with UI/UX designers to transform creative concepts into smooth, interactive experiences.
• Optimize performance for real-time rendering and animations across devices and browsers.
• Integrate backend APIs for data-driven 3D visualizations and dynamic content.
• Stay updated with the latest trends in frontend development, 3D frameworks, and animation tools.
• Ensure cross-browser compatibility, scalability, and maintainability of code.

Required Skills & Qualifications

• 3+ years of professional experience as a Frontend Developer.
• Strong proficiency in HTML5, CSS3, JavaScript (ES6+).
• Experience with React.js / Next.js (or other modern frontend frameworks).
• Hands-on expertise in 3D libraries: Three.js, WebGL, Babylon.js (or similar).
• Knowledge of animation frameworks: GSAP, Framer Motion, Anime.js.
• Strong understanding of rendering performance optimization (shaders, textures, lighting).
• Familiarity with design tools: Figma, Adobe XD, Blender, or similar.
• Excellent problem-solving, debugging, and communication skills.

About koolio.ai

Website: www.koolio.ai

koolio Inc. is a cutting-edge Silicon Valley startup dedicated to transforming how stories are told through audio. Our mission is to democratize audio content creation by empowering individuals and businesses to effortlessly produce high-quality, professional-grade content. Leveraging AI and intuitive web-based tools, koolio.ai enables creators to craft, edit, and distribute audio content—from storytelling to educational materials, brand marketing, and beyond—easily. We are passionate about helping people and organizations share their voices, fostering creativity, collaboration, and engaging storytelling for a wide range of use cases.

About the Full-Time Position

We are looking for a Junior Frontend Engineer to join our fast-growing team on a full-time, hybrid basis. You will be a key contributor in enhancing the user interface of koolio.ai’s AI-powered platform, driving innovation and excellence in audio content creation. You will collaborate closely with senior developers and designers to deliver high-performance, user-friendly web applications that delight our customers.

Key Responsibilities:

• Collaborate with the product and design teams to develop and implement user-friendly web interfaces
• Write clean, efficient, and reusable code using modern frontend technologies
• Ensure responsive design and optimize web pages for performance and scalability across devices
• Debug and resolve issues, improving the overall user experience on the platform
• Assist in integrating APIs and frontend services with the backend
• Stay up-to-date with the latest trends in frontend development and suggest improvements to enhance the platform’s functionality

Requirements and Skills:

• Education: Degree in Computer Science or a related field
• Work Experience: Minimum of 1-2 years of proven experience as a Front-end Engineer or similar role with a focus on user interface development
• Technical Skills:
• Strong proficiency in JavaScript frameworks like ReactJS or Redux
• Proficiency in frontend languages such as HTML, CSS, and JavaScript (ES6+)
• Experience with CSS frameworks (e.g., Bootstrap or Tailwind CSS) for responsive design
• Basic understanding of REST APIs and integration with frontend applications
• Knowledge of version control systems (e.g., Git) and best practices in code management
• Soft Skills:
• Strong attention to detail and a focus on delivering high-quality work
• Ability to work effectively in a remote, collaborative environment with distributed teams
• Willingness to learn new technologies and adapt to a fast-paced startup environment
• Excellent communication and time-management skills, with the ability to manage multiple tasks simultaneously
• Other Skills: 
• Familiarity with Figma or other design tools is a plus. 
• Understanding of SEO principles and how frontend development impacts web performance

Compensation and Benefits:

• Total Yearly Compensation: ₹8-12 LPA based on skills and experience
• Health Insurance: Comprehensive health coverage provided by the company
• ESOPs: An opportunity for wealth creation and to grow alongside a fantastic team

Why Join Us?

• Be a part of a passionate and visionary team at the forefront of audio content creation
• Work on an exciting, evolving product that is reshaping the way audio content is created and consumed
• Thrive in a fast-moving, self-learning startup environment that values innovation, adaptability, and continuous improvement
• Enjoy the flexibility of a full-time hybrid position with opportunities to grow professionally and expand your skills
• Collaborate with talented professionals from around the world, contributing to a product that has a real-world impact

The developer will be responsible to build and enhance collaboration functionalities in our products while ensuring seamless user interaction in the platform. Our engineering team works on developing a range of innovative products to facilitate regulatory work flow of medical device companies. An ideal candidate is one willing to work in a tight schedule of a start-up and experienced in building magical user experiences and considers performance to be the key metric in the application.

Responsibilities :

• Develop new features using Angular 9/10
• Develop reusable components
• Write efficient and documented object oriented code
• Write extensive unit test cases and execute them
• Ensure responsive design of the front end

Skills and Qualifications :

• 2-5 years experience in developing web based applications and building product product from scratch

• Detailed understanding of coding and design aspects of Angular 9/10

• Proficiency with Observables, NGRX and websockets

• Knowledge of various Angular/Jquery packages

• Knowledge of Responsive Design

• Knowledge of WYSIWYG editors

• Knowledge of different performance optimization techniques

• Experienced in various data structures and design patterns

• Knowledge of asynchronous programming

• Bachelor’s Degree in computer science or equivalent education.

Requirements

• 2.5+ years of experience in React JS and Redux
• Expert in React.j, ideally using TypeScript language extensions
• Good understanding of JavaScript Design Patterns
• Good experience writing front-end test cases
• HTML5, CSS3 and Responsive web design are mandatory
• Exposure to Scrum methodology and XP technical practices such as unit testing, pair programming, test-driven development, continuous integration or continuous delivery
• Self-motivated, fast learner, detail-oriented, team player and a sense of humour
• Should have experience with Payment(US) Integrations
• Should have experience with Ecommerce/ERP Connectors

UI Development - Intern

Converts into a full time ‘UI Developer’ position based on performance

A UI Developer, for an early-stage Analytics startup who can help us translate UX designs into a responsive and rich user interface. Also help in improving design/functionality of product. End goal is to achieve product-market objectives

The candidate will have rich learning into what goes into designing, developing, and scaling a product from scratch. A chance to grow into a UI Development Owner in medium term

Responsibilities

1. Own UI Development closely with UX / Technology Owner

2. Implement and maintain product UI modules/sub-systems.

3. Perform bug verification, release testing and support for assigned products.

4. Conduct unit testing and integration testing.

5. Make sure the delivered product matches the business requirements.

Expectations from candidate

1. Ability: Good at logical thinking, problem solving

2. Inclination: Curious and strong willingness to learn from problems, write good code

3. Knowledge: Basics of UI Development (Some academic degree/certification or Prior experience/Projects preferred), Data visualization

4. Languages/Frameworks: HTML, CSS, JavaScript, ReactJS, NextJS

5. Interest in product focused work in a fast-moving start-up environment

6. Attitude: We are looking for a person with an owner mindset who can partner with us in building our product with a lot of commitment. We like people who are curious problem solvers and are interested in learning with us and working hard.

What we offer

1. Great culture focused on outcomes through learning and experimentation

2. Mentoring by experienced professionals from pedigreed backgrounds (IIT/IIMs)

3. Growth, ownership, and flexibility to achieve your goals.

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.