
Job Description
- Designing system architecture, develop and maintain high performing & scalable services using Node.js frameworks.
- Extensively engage in iterative development model right from requirement analysis, estimation, development, testing & production support
- Mentor, groom junior developers and participate in code reviews
- Contribute towards building company’s coding culture
Requirements
- 3+ years of relevant industry experience in Node.js
- A deep understanding of JavaScript
- Experience working with SQL and NoSQL databases
- Experience with Unit and Integration tests
- Experience with CI/CD
- Experience with MathJax/Latex
- Experience with large scale video streaming
- Experience with ReactJS is a bonus

About ClassCast
About
About ClassCast : ClassCast is one of the fastest-growing ed-tech startups in India. We build next-gen suite of products for teachers and educational institutions. We drive digital transformation for some of the biggest stakeholders in the education industry with our solutions. We at ClassCast believe technology will serve as a backbone for accessibility of quality education in this country and are fully committed to build that, one step at a time. Come join us in our mission to transform how India learns, build scalable systems that touches millions of students, teachers and institutions.
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About the Role
We are looking for a Node Backend Developer to design, develop, and maintain the server-
side logic for our next-generation healthcare platform. You will work closely with cross-
functional teams to build high-performance, scalable, and secure applications that power
seamless experiences for hospitals, insurers, and healthcare professionals. The ideal
candidate has strong Node.js and Express expertise and can contribute to the
development of robust backend systems and APIs.
Responsibilities
Backend Development & API Design
• Design and implement RESTful and GraphQL APIs using Node.js and Express
• Develop microservices architecture for scalable and maintainable backend systems
• Optimize database queries and enhance performance of existing systems
• Write clean, maintainable code following best practices and design patterns
System Integration & Database Management
• Work with SQL and NoSQL databases (MySQL, PostgreSQL, MongoDB)
• Integrate with third-party services and APIs (hospital systems, insurance platforms)
• Implement caching mechanisms and message queues for improved performance
• Design and manage database schemas, migrations, and data models
Security & Compliance
• Ensure adherence to healthcare security standards (HIPAA, GDPR, ABDM, etc.)
• Implement authentication, authorization, and data encryption mechanisms
• Follow secure coding practices and conduct code security reviews
• Address security vulnerabilities and implement fixes
Collaboration & Process Improvement
• Work closely with frontend developers, DevOps engineers, and product managers
• Participate in code reviews, sprint planning, and technical discussions
• Contribute to CI/CD pipelines and deployment automation
• Document APIs, services, and system architecture
Required Skills & Qualifications
• 2+ years of experience in backend development using Node.js
• Strong proficiency with Express.js framework and RESTful API design
• Experience with relational databases (MySQL, PostgreSQL) and SQL
• Knowledge of microservices architecture and containerization (Docker)
• Understanding of version control systems (Git) and CI/CD workflows
• Strong problem-solving abilities and debugging skills
• Excellent communication and collaboration skills
Nice to Have
• Experience with AI/ML integration in backend systems
• Familiarity with healthcare or insurance industry applications
• Knowledge of cloud platforms (AWS, Azure, GCP)
• Experience with NoSQL databases (MongoDB, Cassandra)
• Understanding of event-driven architecture and message queues (Kafka, RabbitMQ)
• Proficiency in additional programming languages (Python, JavaScript)
What You'll Gain
• Opportunity to build scalable solutions for mission-critical healthcare operations
• Work in a fast-paced, innovative environment with cutting-edge technologies
• Exposure to AI-driven healthcare solutions and enterprise integrations
• Growth potential into Senior Backend Developer or Backend Team Lead roles

Senior Software Engineer (Java)
We are looking for a Senior Software Engineer - Java
If you're a creative problem solver who is eager to develop amazing products and hungry for a new adventure, a word class workplace is waiting for you in the heart of Kolkata.
An exhaustive list of expectations :
✓ Design and implement cutting-edge applications
✓ Participate in code reviews and application debugging and diagnosis.
✓ Practice modern software development methodologies such as continuous delivery, and scrum.
✓ Collaborate with product managers and engineers to build scalable systems enabling innovative ordering experiences.
Requirements -
✓ Knowledge and 5+ years of experience in developing Java applications
✓ A completed technical degree in Computer Science or any related fields.
✓ Profound knowledge and working experience with Java Frameworks (Springboot) and SQL databases.
✓ Solid experience in the design and implementation of Restful APIs and design patterns.
✓ Strong knowledge in Core Java, REST , Spring Framework, Spring Boot Microservice , JPA (e.g. Hibernate, OpenJPA, etc.) , Docker, Jenkins, ELK Stack
✓ Experience working with NoSQL Technologies and interest in Elasticsearch, and Microservices architectures.
✓ Curiosity, out of box problem-solving abilities, and an eye for detail.
✓ Passion for clean code
What really makes us interested in you - You are self-motivated. You think like an entrepreneur, constantly innovating and driving positive change, but more importantly, you consistently deliver stupendous results.
Number of position – 3
Job Location – kolkata, Sector 5

About us:
http://www.productsup.com">Productsup provides an award-winning platform for feed management, product content syndication, marketplace integration, and seller onboarding. The platform empowers businesses to take complete control of their product data and break through the digital walls that hinder growth. With Productsup, businesses can syndicate content to digital marketing, shopping, or business channels, including Google, Amazon, Facebook, Walmart, and more.
We are headquartered in Berlin, Germany, have entities in 5 different countries, and are in the process of setting up our Indian entity. Productsup is trusted by more than 800 businesses worldwide, including 5 Fortune 20 companies and market leaders like IKEA, Walmart, Superdry, and Rakuten.
We are proud that we have recently raised an additional 20 Million dollars in funding and that our employees enjoy working at Productsup, which is also shown by our Glassdoor and Kununu ratings.
About the role:
We’re looking for a hands-on Engineering Lead/Managing Architect for our API/Backend Development team. In this role, you’ll lead the effort to develop channels and APIs for our marketplace channels and scalable data pipelines, which process over 5 billion products a day.
In your first 6 months and beyond, you will:
- Learn the ins and outs of our platform, our codebase and our engineering processes
- Help build features for software that works with large data sets
- Play a key cross-functional role within our team of highly talented Javascript and PHP developers
- Develop solutions for high availability software
- Receive customer requests from the Product Team and develop solutions in the form of new features or products
- Debug and maintain APIs
- Work closely within the Platform team and with the API team to develop internal APIs and client-facing interfaces.
What you bring to the team:
- 2+ years of demonstrated Tech leadership experience.
- 7+ years of experience in PHP (good knowledge of Slim, Silex, or Symfony frameworks) and MySQL
- Some knowledge of integration architecture patterns such as scalable microservices, API gateways, API scalability
- Deep knowledge in APIs, web services, command-line programs, TDD, and SOLID design principles
- Good understanding of B2B SaaS products and experience dealing with big data
- Knowledge of developing and securing APIs
- Extended database experience in Elasticsearch, MongoDB or Couchbase
- Outstanding communication skills in English
- Educational background in IT or Computer Science is a plus
Benefits & Perks:
- Attractive Salary and benefits
- MacBook (latest version) for our new joiners
- A unique and thorough onboarding program where you’ll learn the ins and outs of our company and product
- Employee referral bonuses
- High level of personal responsibility and impact
Explore more here
https://www.linkedin.com/company/productsup/">LinkedIn
https://www.youtube.com/watch?v=olqMdYTBjHc">Life at Productsup
Do you have what it takes? We'd love to hear from you!
We know CVs don't always tell the whole story, so in addition to submitting your CV feel free to let us know why you're interested in this role in a short cover letter (:100 words).

Job Description:
• In depth knowledge of NodeJS, ExpressJS, Mongo DB
• Experience implementing applications using React
• Experience creating front end applications using HTML5, React, Saga
• Hands on experience with JavaScript Development on both client and server-side
• Experience with modern frameworks and design patterns
• Experience in using Github / Bitbucket
• Knowledge of using AWS and deploying applications on AWS

o Strong Python development skills, with 7+ yrs. experience with SQL.
o A bachelor or master’s degree in Computer Science or related areas
o8+ years of experience in data integration and pipeline development
o Experience in Implementing Databricks Delta lake and data lake
o Expertise designing and implementing data pipelines using modern data engineering approach and tools: SQL, Python, Delta Lake, Databricks, Snowflake Spark
o Experience in working with multiple file formats (Parque, Avro, Delta Lake) & API
o experience with AWS Cloud on data integration with S3.
o Hands on Development experience with Python and/or Scala.
o Experience with SQL and NoSQL databases.
o Experience in using data modeling techniques and tools (focused on Dimensional design)
o Experience with micro-service architecture using Docker and Kubernetes
o Have experience working with one or more of the public cloud providers i.e. AWS, Azure or GCP
o Experience in effectively presenting and summarizing complex data to diverse audiences through visualizations and other means
o Excellent verbal and written communications skills and strong leadership capabilities
Skills:
Python




