🚀 Lumel Hiring Product Developer Trainee – 2025
| Lumel | |
| Job Role | Product Developer Trainee |
| Qualification | B.Tech/B.Sc/BCA |
| Batch | 2025 |
| Experience | Freshers |
| Salary | 6 to 10 LPA |
| Location | Chennai |
| Last Date | ASAP |
| Apply Link Below | |
|---|---|
Who Can Apply?
✅ 2025 Computer Science graduates passionate about product development
✅ Strong programming & coding skills are a must
Role & Responsibilities
🔹 Build products using UI frameworks
🔹 Core skillset: JavaScript, React.js, Python, Node.js, MongoDB
🔹 Develop hosted & cloud-based BI products using cutting-edge languages (Node, Python, Java)
🔹 Re-engineer existing hosted products for the cloud (AWS)
🔹 Knowledge of Angular, Vue.js, and visualization libraries is a plus
Why Join Lumel?
✅ Work on cutting-edge BI and cloud-based products
✅ Collaborate with a team of tech enthusiasts & industry experts
✅ Competitive salary package & growth opportunities
✅ Exposure to modern JavaScript frameworks & backend technologies
How to Apply?
📩 Fill in the application form, attach your resume, and answer the provided questions.
| Jobs by Qualification | |
| B.Tech | BBA |
| B.Sc | B.Com |
| M.Sc | M.Com |
| MCA | MBA |
| BCA | M.Tech |
🌟 Interview Questions & Answers
1. What are the key differences between React.js and Angular?
Answer: React.js is a library for building UIs, whereas Angular is a full-fledged framework. React uses a virtual DOM, making it faster, while Angular operates on a real DOM. React follows a component-based architecture, whereas Angular provides MVC (Model-View-Controller). React has a more flexible ecosystem, while Angular has built-in features like routing and form validation.
2. Explain how MongoDB is different from traditional relational databases.
Answer: MongoDB is a NoSQL database that stores data in JSON-like documents, making it more flexible than traditional relational databases (SQL). It allows horizontal scaling, does not require a fixed schema, and supports fast data retrieval with indexing. Unlike SQL, which uses tables and relationships, MongoDB groups data into collections and documents.
3. What is the difference between Node.js and Python?
Answer: Node.js is event-driven and non-blocking, making it suitable for real-time applications and server-side JavaScript execution. Python, on the other hand, is a high-level scripting language with a vast ecosystem for data science, AI, and web development. Node.js excels in scalability and performance, while Python is widely used for its readability and versatility.
4. How do you optimize the performance of a React.js application?
Answer: Optimizing React performance includes:
✔ Using React.memo() to prevent unnecessary re-renders
✔ Implementing lazy loading with React Suspense
✔ Using code splitting to load components only when needed
✔ Optimizing state management with Context API or Redux
✔ Avoiding unnecessary computations using useCallback and useMemo hooks
5. What are AWS services commonly used for cloud-based application development?
Answer: Common AWS services include:
✔ EC2 – Scalable computing power
✔ S3 – Cloud storage
✔ Lambda – Serverless computing
✔ RDS – Managed relational databases
✔ DynamoDB – NoSQL database for high-speed applications
✔ CloudFront – Content delivery network for low-latency performance
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