nodeJS, Databases, API development.
Infosys Hyderabad, Telangana, India
Job Description
"Unlock the power of scalable backend services and RESTful APIs with Node.js, database expertise, and API development mastery at Infosys."
As a backend engineer at Infosys, you'll play a pivotal role in designing, developing, and maintaining high-performance backend services and RESTful APIs using Node.js. You'll work with cutting-edge technologies to architect and implement robust database schemas, queries, and data access layers that ensure high reliability and performance.
With a focus on scalability, security, and versioning, you'll build, integrate, and optimize APIs for internal and external consumers, following coding standards and best practices. Your expertise will be sought after by cross-functional teams, including product managers, frontend engineers, QA, and other stakeholders.
Why you should learn this:
High demand in the tech industry, with a growing need for skilled Node.js developers and API architects.
Expected Salary: Competitive salary range of $120,000 - $200,000 per year, depending on experience and location.
How it works:
- Step 1: Design and develop scalable backend services using Node.js, ensuring high performance and reliability.
- Step 2: Architect and implement robust database schemas, queries, and data access layers for high performance and reliability.
Core Concepts to Master
Node.js Fundamentals
Master the basics of Node.js, including event-driven I/O, non-blocking I/O, and asynchronous programming. Learn how to write efficient, scalable code using Node.js frameworks like Express.js and Koa.js.
Database Design and Implementation
Learn to design and implement robust database schemas, queries, and data access layers using SQL and NoSQL databases like MySQL, PostgreSQL, MongoDB, and Cassandra. Understand database normalization, indexing, and query optimization techniques.
API Development and Design
Discover the principles of API design, including RESTful API architecture, API versioning, and backward compatibility. Learn how to build, integrate, and optimize APIs using tools like Swagger and API Gateway.
Security and Best Practices
Understand the importance of security in API development and learn how to implement secure coding practices, including input validation, error handling, and authentication mechanisms.
Performance Tuning and Optimization
Learn how to identify and fix performance bottlenecks in Node.js services and database operations. Understand caching strategies, monitoring, and logging techniques to ensure high performance and reliability.
Interview Questions (Beginner)
- What is Node.js and how does it compare to other backend technologies?
- Can you explain the concept of asynchronous programming in Node.js?
- How do you design and implement a RESTful API in Node.js?
Job Overview
Advance Questions
- • Can you explain the trade-offs between SQL and NoSQL databases?
- • How do you optimize database queries for high performance?
- • Can you describe a scenario where you had to troubleshoot and debug a complex production issue?