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.

Experience: 8-15 Years

Qualification: BE / B. Tech 

Location: Pune, Remote

Technical Know -How: React.js/ReactJs, Java Spring Boot, Spring Framework, Java Spring developers, Rest API, Microservices, front end and Back-end technologies etc.

Key Responsibilities

• Work with team of Java & Springboot Developers in the design, development, and maintenance of applications.
• Work with business stakeholders and technical teams to gather and analyze requirements for Java & Springboot applications.
• Lead a team of developers in building scalable, secure, and high-performance applications using React and Spring Boot.
• Drive end-to-end ownership of application development including requirement analysis, design, coding, testing, and deployment.
• Collaborate with product owners, architects, and cross-functional teams to define and deliver high-quality solutions.
• Ensure adherence to coding standards, best practices, and agile development methodologies.
• Mentor and guide team members, conduct code reviews, and encourage technical excellence.
• Oversee application performance tuning, debugging, and troubleshooting in production and non-production environments.
• Participate in architectural discussions and contribute to technology roadmaps.

Required Skills & Experience

• Bachelor’s degree in computer science, computer engineering or similar.
• Excellent communication skills.
• Critical thinker and good problem-solver.
• 8–15 years of overall software development experience, with at least 3 + years in a lead/mentorship role.
• Strong proficiency in React.js, JavaScript/TypeScript, HTML5, CSS3, Redux, and related libraries/frameworks.
• Solid backend development experience using Spring Boot, Spring Security, REST APIs, and Microservices architecture.
• Strong understanding of Test Driven Development ( Junit)
• Write efficient and well-structured code to implement business logic and functionality on the Java platform.
• Perform unit testing and debugging to ensure the quality and reliability of developed applications.
• Maintain and enhance existing Java & Springboot applications by troubleshooting issues, implementing bug fixes, and optimizing performance.
• Strong understanding of RDBMS/NoSQL databases (e.g., MySQL, MongoDB / Azure Cosmos DB).
• Experience with cloud platforms (AWS / Azure / GCP) and containerization (Docker, Kubernetes).
• Proficiency in version control (Git), CI/CD pipelines, and DevOps practices.
• Strong problem-solving skills, debugging expertise, and performance optimization experience.
• Excellent communication and leadership skills with the ability to drive technical discussions
• Good knowledge of security best practices (OAuth2, JWT, SSO, etc.).
• Good to have experience with message brokers (Kafka, Azure Service Bus).

Position: Full Stack Developer (React.js + Node.js)

Experience: 2–5 Years

Location: Mumbai – Chembur West (Onsite)

Job Summary

We are looking for a Full Stack Developer with strong hands-on experience in React.js and Node.js to build scalable, secure, and high-performance web applications. The ideal candidate should be comfortable owning features end-to-end, developing responsive UI, building REST APIs, integrating databases, and supporting production systems.

Key Responsibilities

• Build responsive UI using React.js, HTML5, CSS3, JavaScript (ES6+)
• Develop scalable backend services and RESTful APIs using Node.js (Express.js / NestJS)
• Work with MongoDB and MySQL (schema design, indexing, query optimization)
• Implement authentication & authorization using JWT , RBAC , Oauth
• Integrate third-party APIs, Webhooks
• Build real-time features using Socket.io / WebSockets
• Ensure performance, scalability, and security (validation, sanitization)
• Implement caching using Redis (if applicable) and optimize API response times
• Support API testing (Postman/Supertest)
• Maintain API documentation using Swagger / OpenAPI
• Debug and resolve defects, handle RCA, and support production troubleshooting with logs/monitoring
• Follow Git-based workflows, participate in code reviews, and collaborate with QA/product teams in Agile delivery

Mandatory Skills

• React.js, Node.js, JavaScript (ES6+)
• MongoDB (must), MySQL
• REST API development & integration
• Socket.io / WebSockets, Webhooks
• HTML5, CSS3
• Git
• Typescript, Express.js / NestJS
• jQuery / AJAX (basic / legacy support)

Good to Have

• Redis, Swagger/OpenAPI
• Docker, CI/CD (GitHub Actions/Jenkins)
• Cloud exposure (AWS/Azure/GCP)

Qualification

BE / BTech / MCA / MSc IT / BSc IT with 2–5 years relevant experience.

CTC: As per industry std.

Full Stack Developer (Node.js & React)

Location: Pune, India (Local or Ready to Relocate)

Employment Type: 6–8 Month Contract (Potential Conversion to FTE Based on Performance)

About the Role

We are seeking a highly skilled Full Stack Developer with expertise in Node.js and React to join our dynamic team in Pune. This role involves designing, developing, and deploying scalable web applications. You will collaborate with cross-functional teams to deliver high-impact solutions while adhering to best practices in coding, testing, and security.

Key Responsibilities

• Develop and maintain server-side applications using Node.js (Express/NestJS) and client-side interfaces with React.js (Redux/Hooks).
• Architect RESTful APIs and integrate with databases (SQL/NoSQL) and third-party services.
• Implement responsive UI/UX designs with modern front-end libraries (e.g., Material-UI, Tailwind CSS).
• Write unit/integration tests (Jest, Mocha, React Testing Library) and ensure code quality via CI/CD pipelines.
• Collaborate with product managers, designers, and QA engineers in an Agile environment.
• Troubleshoot performance bottlenecks and optimize applications for scalability.
• Document technical specifications and deployment processes.

Required Skills & Qualifications

• Experience: 3+ years in full-stack development with Node.js and React.
• Backend Proficiency:
• Strong knowledge of Node.js, Express, or NestJS.
• Experience with databases (PostgreSQL, MongoDB, Redis).
• API design (REST/GraphQL) and authentication (JWT/OAuth).
• Frontend Proficiency:
• Expertise in React.js (Functional Components, Hooks, Context API).
• State management (Redux, Zustand) and modern CSS frameworks.
• DevOps & Tools:
• Git, Docker, AWS/Azure, and CI/CD tools (Jenkins/GitHub Actions).
• Testing frameworks (Jest, Cypress, Mocha).
• Soft Skills:
• Problem-solving mindset and ability to work in a fast-paced environment.
• Excellent communication and collaboration skills.
• Location: Based in Pune or willing to relocate immediately.

Preferred Qualifications

• Experience with TypeScript, Next.js, or serverless architectures.
• Knowledge of microservices, message brokers (Kafka/RabbitMQ), or container orchestration (Kubernetes).
• Familiarity with Agile/Scrum methodologies.
• Contributions to open-source projects or a strong GitHub portfolio.

What We Offer

• Competitive Contract Compensation with timely payouts.
• Potential for FTE Conversion: Performance-based path to a full-time role.
• Hybrid Work Model: Flexible in-office (Pune) and remote options.
• Learning Opportunities: Access to cutting-edge tools and mentorship.
• Collaborative Environment: Work with industry experts on innovative projects.

Apply Now!

Ready to make an impact? Send your resume and GitHub/Portfolio links with the subject line:

"Full Stack Developer (Node/React) - Pune".

Local candidates or those relocating to Pune will be prioritized. Applications without portfolios will not be considered.

Equal Opportunity Employer

We celebrate diversity and are committed to creating an inclusive environment for all employees.

 Sr. Java Software Engineer:

Preferred Education & Experience:

• Bachelor’s or master’s degree in Computer Engineering, Computer Science, Computer Applications, Mathematics, or related technical field. Relevant experience of at least 3 years in lieu of above if from a different stream of education.
• Well-versed in and 5+ years of hands-on designing experience in Object Oriented Design, Data Modeling, Class & Object Modeling, Microservices Architecture & Design.
• Well-versed in and 5+ years of hands-on programming experience in Core Java Programming, Advanced Java Programming, Spring Framework, Spring Boot or Micronaut Framework, Log Framework, Build & Deployment Framework, etc

. • 3+ years of hands-on experience developing Domain-Driven Microservices using libraries & frameworks such as Micronaut, Spring Boot, etc.

• 3+ years of hands-on experience developing connector frameworks Apache Camel, Akka framework, etc.
• 3+ years of hands-on experience in RBDMS & NoSQL Databases concepts and development practices (PostgreSQL, MongoDB, Elasticsearch, Amazon S3).
• 3+ years of hands-on experience developing Webservices using REST, API Gateway using Token based authentication, access management.
• 1+ years of hands-on experience developing and hosting microservices using Serverless and Container based development (AWS Lambda, Docker, Kubernetes, etc.).
• Having Knowledge & hands-on experience developing applications using Behavior Driven Development, Test Driven Development Methodologies is a Plus.
• Having Knowledge & hands-on experience in AWS Cloud Services such as IAM, Lambda, EC2, ECS, ECR, API Gateway, S3, SQS, Kinesis, CloudWatch, DynamoDB, etc. is also a Plus.
• Having Knowledge & hands-on experience in DevOps CI/CD tools such as JIRA, Git (Bitbucket/GitHub), Artifactory, etc. & Build tools such as Maven & Gradle.
• 2+ years of hands-on development experience in Java centric Developer Tools, Management & Governance, Networking and Content Delivery, Security, Identity, and Compliance, etc.
• Having Knowledge & hands-on experience in Apache Nifi, Apache Spark, Apache Flink is also a Plus. • Having Knowledge & handson experience in Python, NodeJS, Scala Programming is also a Plus. Required Experience: 5+ Years

Job Location: Remote / Pune

Open Positions: 1

• Minimum 2 years of experience working as Software/Solution Architect
• In-depth knowledge of enterprise integration patterns
• Expertise to help developing advanced cloud-based solutions like AWS, Google or Microsoft. Ability
• to plan, design and scale AWS cloud based implementations using the best practises recommended
• by Amazon
• Experience in software development and coding in various platforms (like Java, Python, Node.js,
• Angular, Kotlin, React, Swift etc)
• Experience with relational and NoSQL databases
• Experience with enterprise service bus like Mule, Apache Camel is a plus
• Understanding of software quality assurance principles
• Outstanding communication and presentation abilities

• Leads development of solution architecture , preparation of technical plans, in liaison with business
• assurance and project staff
• Develop high-level product specifications with attention to system integration and feasibility
• Working proactively to maintain a stable, viable architecture and ensure consistency of design across
• projects within the programme
• Collaborate with other professionals to determine functional and non-functional requirements for
• new software or applications
• Ensures that technical strategies, policies, standards and practises are applied correctly working
• proactively to maintain
• Use tools and methodologies to create representations for functions and user interface of desired
• product
• Provides guidance on technical aspects of the solution development and integration
• Ensure software meets all requirements of quality, security, modifiability, extensibility etc.
• Ensures that appropriate tool and method are available, understood and employed in the
• architecture development

Position Name: Full Stack Developer

Department: Engineering

Industry: Digital Marketing

Location: Hyderabad

Employment Type: Full-time

Reporting Manager: Staff Software Engineer

TapClicks is looking for a Full Stack Developer to strengthen our team as well as build an industry-leading product suite and great culture. The ideal candidate is highly motivated and goal-driven with excellent problem-solving skills.

In this position, you will have the opportunity to fill a crucial role in our talented engineering organization: architecting, implementing, and maintaining vital parts of our products. Strong communication skills are key, as you will regularly collaborate cross-functionally with other engineers as well as the Product, Design, and QA teams to spec, build, test, and deploy features.

If you have a passion for building great products for customers, working in a fast-paced environment, and challenging yourself to become better at your craft, there’s a place for you here at TapClicks.

• Write clean, high-quality, high-performance, maintainable code
• Take ownership for significant functionality within our products, from implementation to iteration based on feedback and beyond
• Comfortably switch between frontend and backend development as needed
• Work with enormous amounts of data
• Participate in code reviews
• Effectively communicate and collaborate with cross-functional teams

Technical Competencies

• Effective use of debugging, unit testing, and integration testing tools
• Strong frontend development experience with a JavaScript framework
• Must have working experience with RESTful  API
• Willing to work with MongoDB, PHP 7, MySQL, Node, Typescript / Javascript
• Good to have knowledge on Vue JS
• Strong understanding of OOPS concepts
• Experience with agile software development practices

Non-Technical Competencies

• Strong communication skills, both verbal and written
• Self-motivated, with a passion for learning and continuous self-improvement

Minimum Qualifications:

• Bachelor's Degree in Engineering or similar degree
• 2-4 years of professional experience as a software developer

Preferred Qualifications

• Backend development experience 
• Experience with JavaScript unit testing frameworks, e.g.  Mocha
• Experience with Restful API 
• Experience with building responsive web applications

Benefits of Working For TapClicks

• The opportunity to work in an entrepreneurial, fast-growing, and successful business environment
• Health Insurance coverage
• Competitive employee benefits
• Paid Time Off (Earned leaves, Public Holidays and others)

TapClicks understands that Diversity and Inclusion is a powerful enabler for business performance. We are an equal-opportunity employer, and we value diversity at our company. We do not discriminate based on race, religion, national origin, gender, sexual orientation, age, marital status, veteran status, disability status, or any other characteristic protected by federal, state, or local law. 

Job Description: Full Stack Developer – RattanIndia Technologies Private Limited

Based at: New Delhi

Overview:

Required Full Stack developer with 3 to 6 years of experience with competencies in development of web applications in financial services domain on salesforce development platform and shall be responsible for requirement analysis, design, coding, testing and implementation of web applications.

Key Accountabilities:

• Working closely with business teams on the analysis to understand the requirements.
• Shall be responsible for designing, coding, testing and implementation of web application.
• Will be responsible for system design and application development of web applications.
• Work closely with the product managers and other team members to build features, functionality, and application.
• Design and implementation of low-latency, high-availability, and high performance applications.
• Implementation of security and data protection.
• Demonstrate creativity and sound analytical skills in identifying effective approaches to develop solutions independently.
• Deliver features with high quality, on-time as per project plans and delivery commitments.
• Delivering status updates to the management and stakeholders regularly.
• Demonstrate creativity and sound analytical skills in identifying effective approaches to develop solutions independently.

Academic Qualification:

• Tech Computer Science/MCA from Top Tier Institutes.

Skillset Requirements:

• Expertise with Node.JS and associated technologies such as React and Express.
• Fluent in HTML5, CSS3, and JavaScript
• Experience with SQL (Postgres) data models
• Extensive experience developing and working with REST APIs.
• Experience working in a DevOps environment and using tools like Travis, Jenkins.
• Solid experience with containerization using Docker and Kubernetes.
• Proficiency with source control and team collaboration tools (GitHub, Asana, Jira, Slack)
• Experience with data interchange formats such as XML or JSON.
• Solid Experience with AWS, Heroku and Salesforce.

About RattanIndia ltd.

For Details visit: http://www.rattanindia.com">www.rattanindia.com

https://rattanindia.in/">https://rattanindia.in/