Mean Stack Developer

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. 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 Internship Position

We are looking for a motivated full-time Software Development Intern to join our innovative team. As an intern at koolio.ai, you’ll have the opportunity to work on a next-gen AI-powered platform and gain hands-on experience developing and optimizing backend systems that power our platform. This internship is ideal for students or recent graduates who are passionate about backend technologies and eager to learn in a dynamic, fast-paced startup environment.

Key Responsibilities:

• Assist in the development and maintenance of backend systems and APIs.
• Write reusable, testable, and efficient code to support scalable web applications.
• Work with cloud services and server-side technologies to manage data and optimize performance.
• Collaborate with cross-functional teams to integrate frontend features with backend logic.
• Collaborate with the product and design teams to develop and implement user-friendly web interfaces
• 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 and ensuring reliability
• Assist in integrating APIs and frontend services with the backend
• Stay up-to-date with the latest trends and suggest improvements to enhance the platform’s functionality

Requirements and Skills:

• Education: Currently pursuing or recently completed a degree in Computer Science, Engineering, or a related field.
• Technical Skills:
• Good understanding of server-side technologies like Python
• Familiarity with REST APIs and database systems (e.g., MySQL, PostgreSQL, or NoSQL databases).
• Exposure to cloud platforms like AWS, Google Cloud, or Azure is a plus.
• Knowledge of version control systems such as Git.
• Strong proficiency in JavaScript frameworks like ReactJS or Redux
• Proficiency in frontend languages such as HTML, CSS, and JavaScript (ES6+)
• Soft Skills:
• Eagerness to learn and adapt in a fast-paced environment.
• Strong problem-solving and critical-thinking skills.
• Effective communication and teamwork capabilities.
• Other Skills: Familiarity with CI/CD pipelines and basic knowledge of containerization (e.g., Docker) is a bonus.

Why Join Us?

• Gain real-world experience working on a cutting-edge platform.
• Work alongside a talented and passionate team committed to innovation.
• Receive mentorship and guidance from industry experts.
• Opportunity to transition to a full-time role based on performance and company needs.

This internship is an excellent opportunity to kickstart your career in software development, build critical skills, and contribute to a product that has a real-world impact.

We are looking for a Full Stack Developer to build scalable software solutions and contribute across the entire software development lifecycle—from conception to deployment.

You will work closely with cross-functional teams and should be comfortable with both front-end and back-end technologies, modern frameworks, and third-party libraries. If you enjoy building visually appealing, functional applications and thrive in Agile environments, we’d love to connect.

Current Technologies Used

• Backend: FastAPI (active), PHP (legacy), Java (legacy)
• Frontend: Svelte, TypeScript, JavaScript

Experience with Python and PHP is a plus, but not mandatory.

Role Responsibilities

• Collaborate with development teams and product managers to ideate software solutions
• Design client-side and server-side architecture
• Build visually appealing front-end applications
• Develop and manage efficient databases and applications
• Write effective and scalable APIs
• Test software for responsiveness and performance
• Troubleshoot, debug, and upgrade systems
• Implement security and data-protection measures
• Build mobile-responsive features and applications
• Create and maintain technical documentation

Candidate Requirements:

Education

• B.Tech / BE in Computer Science, Statistics, or a relevant field

Experience

• 2–4 years as a Full Stack Developer or in a similar role

Location

• Bangalore (Hybrid)

Skill Set – Role Based

• Experience building web applications
• Familiarity with common technology stacks
• Knowledge of front-end languages and libraries:
• HTML, CSS, JavaScript, XML, jQuery
• Knowledge of back-end languages and frameworks:
• Java, Python, PHP
• Angular, React, Svelte, Node.js
• Familiarity with:
• Databases: PostgreSQL, MySQL, MongoDB
• Web servers: Apache
• UI/UX principles

Skill Set – Behavioural

• Excellent communication and teamwork skills
• Strong attention to detail
• Good organizational skills
• Analytical mindset

At AppLaunchpad, we empower app developers, startups, and businesses to showcase their apps through high-quality mockups, templates, and creative assets. We are expanding our tech team and looking for a skilled Web Developer who can help us scale our platform, improve user experience, and bring fresh ideas to life.

Key Responsibilities

• Design, develop, and maintain AppLaunchpad’s website and related tools
• Build user-friendly, responsive web pages with strong attention to detail
• Collaborate with designers and product managers to create seamless UI/UX
• Implement performance optimizations to ensure fast and reliable user experiences
• Manage integrations with third-party APIs and payment systems
• Ensure security, scalability, and SEO best practices are followed

Requirements

• Proven experience as a Web Developer or Full-Stack Developer
• Strong skills in HTML, CSS, JavaScript (ES6+), React or Vue.js
• Experience with backend frameworks (Node.js / Django / PHP)
• Familiarity with databases (MySQL, MongoDB, PostgreSQL)
• Knowledge of Git/GitHub workflows
• Understanding of SEO, performance optimization, and mobile-first development

Nice-to-Have

• Experience with design/creative platforms or SaaS
• Familiarity with cloud hosting (AWS, Vercel, Netlify)
• Previous work on e-commerce or subscription platforms

What We Offer

• Competitive salary and growth opportunities
• Work with a creative, fast-moving startup team
• Flexible working hours and remote-first culture
• Opportunity to shape the future of app marketing tools

Job Overview: We are looking for a highly skilled and experienced Node.js Developer to join our team. The ideal candidate will have over 5 years of experience in developing scalable, high-performance backend applications using Node.js and related technologies. You will work closely with cross-functional teams to design, develop, and deploy robust solutions.

Key Responsibilities:

· Develop, maintain, and optimize server-side applications using VueJs, Node.js and Express.js.

· Design and implement scalable RESTful APIs and GraphQL APIs.

· Work with databases such as MongoDB, PostgreSQL, or MySQL.

· Ensure the security, performance, and responsiveness of applications.

· Collaborate with front-end developers, UX designers, and product managers.

· Implement automated testing and continuous integration.

· Debug and optimize existing code for performance improvements.

·  Stay updated with the latest trends and best practices in Node.js development.

Required Skills & Qualifications:

· 5+ years of experience in backend development using Node.js.

· Proficiency in JavaScript & TypeScript.

· Strong knowledge of Express.js, Nest.js, or similar frameworks.

· Experience with microservices architecture and cloud platforms (AWS, Azure, GCP).

· Expertise in database technologies such as MongoDB, PostgreSQL, or MySQL.

· Familiarity with Docker, Kubernetes, and CI/CD pipelines.

· Experience with authentication and security best practices (JWT, OAuth, etc.).

· Strong debugging and performance optimization skills.

·  Ability to work in an agile environment and collaborate with cross-functional teams.

Preferred Qualifications:

· Experience with message queues (RabbitMQ, Kafka, etc.).

· Knowledge of DevOps practices and infrastructure as code (Terraform, Ansible).

· Familiarity with front-end technologies such as VueJs or React.

· Contributions to open-source projects or a strong GitHub portfolio.

• Design and develop a comprehensive website using Next.js, integrating both client-side and server-side architecture.
• Build reusable code and libraries for future use, ensuring the technical feasibility of UI/UX designs.
• Optimize applications for maximum speed and scalability across a vast array of web-capable devices and browsers.
• Collaborate with team members, including designers and project managers, to translate business and user requirements into technical solutions.
• Implement robust security and data protection measures.
• Stay up-to-date with emerging technologies and industry trends to incorporate into operations and practices.
• Conduct testing to identify bugs and technical issues before and after deploying.
• Document development processes, code changes, and other technical information for reference and reporting.

We are looking for a talented Fullstack Developer with 2-5 years of experience to join our engineering team. The ideal candidate will have experience with MongoDB, Express, React, and Node. As a Fullstack Developer, you will be responsible for developing and maintaining our web-based applications and services.

Responsibilities:

• Work collaboratively with the product and engineering teams to develop high-quality web-based applications and services.
• Develop and maintain RESTful APIs using Node.js and Express.
• Design and develop the front-end user interface using React.
• Create and maintain MongoDB databases and related services.
• Develop and maintain automated test cases for both front-end and back-end applications.
• Participate in code reviews and ensure code quality.
• Stay up-to-date with emerging trends and technologies in web development and AI.

Qualifications:

• 2-5 years of experience as a Fullstack Developer with expertise in MongoDB, Express, React, and Node.
• Experience in developing RESTful APIs using Node.js and Express.
• Experience in front-end development using React.
• Experience in database development using MongoDB.
• Strong knowledge of HTML, CSS, and JavaScript.
• Strong problem-solving and analytical skills.
• Excellent communication and collaboration skills.
• Experience in automated testing using Jest, Cypress, or other similar frameworks is a plus.
• Experience in AWS or other cloud technologies is a plus.
• Knowledge of AI and machine learning concepts is a plus.

We offer a competitive salary, flexible working hours, and a collaborative work environment. If you are passionate about AI & how teams collaborate, and want to work in a fast-paced, innovative environment, then we want to hear from you.

**Work remotely / Work From Home with BigStep Technologies throughout your tenure**

Desired candidates must have 8+ years of total experience in backend development with good expertise in MEAN Stack (MongoDB, ExpressJS, AngularJS, Node.js) and JavaScript, along with strong development and coding skills, good analytical and problem-solving skills.

Roles and Responsibilities :

What You'll Do

• Create the system architecture for any product from scratch as well as drive it for more than one development teams
• Design and deliver solutions that enable fast and efficient deployment of quality code to production
• Document the architectural blueprint and end to end design through flowcharts and diagrams.
• Set coding standards for development teams and ensure all released code is following standards
• Oversee the code review process, performing reviews when necessary
• Establish strong communication channels and relationships with the development teams, supporting them throughout the release cycle
• Continuously evaluate the existing software to identify areas of improvement and ensure architectural integrity as additional features are added.
• Lead DevOps and implement tooling and process improvements when you identify gaps
• Work with various stakeholders and identify the scope of the work, provide high level estimations, create a timeline and come up with the approach and design for the same.
• Evaluate and recommend tools, technologies and processes to ensure the highest quality product platform.
• Coach and mentor the development teams to improve the overall expertise and skills of the team.
• Take care of the development of critical components and POCs for new technologies to be used.
• Deliver high quality deliverables individually/as a team adhering to industry best practices.
• Troubleshoot any errors or issues that arise in the application/infrastructure components quickly and efficiently.

What You Bring

• 8+ years in software development or product engineering
• Proficient in MEAN Stack
• Good experience in backend development with Node.js
• Expertise in developing RESTful APIs
• Have created multi-transactional and highly redundant systems from ideation to production
• Customer-centric mindset
• Expertise in Agile SCRUM best practices
• Expertise in implementing front-end of applications using HTML5, Angular.js
• Proficient in MVC, OOPS concepts, Web Development Concepts, HTML, JSON, REST API development
• Strong coding skills, good analytical and problem-solving skills
• Ability to break down complex technical concepts into something digestible by non-technical stakeholders

**Work remotely / Work From Home with BigStep Technologies throughout your tenure**