Want to Work as a Backend Developer? PW Has an SDE-3 Opening You Can Explore

Backend development at scale requires more than programming knowledge. You need to design scalable systems, build reliable APIs, work with distributed architectures and optimise application performance. Physics Wallah’s Backend SDE-3 role brings these skills together, with a focus on backend services, microservices, system design and high-scale applications.

PW Backend SDE-3 Job 2026

What Will You Do as a Backend SDE-3 at PW?

The role covers backend development, system architecture, performance optimisation and engineering practices.

Key responsibilities include:

• Design, develop and maintain scalable backend services and microservices for PW's B2C platform.

• Build high-performance APIs and distributed systems that can handle growing traffic and user demand.

• Design backend systems with a focus on availability, security, reliability and fault tolerance.

• Identify and resolve application and database performance bottlenecks.Optimise database queries and develop effective caching strategies.

• Work with Kafka or similar messaging systems to build event-driven and asynchronous workflows.

• Use Redis to improve response times and reduce unnecessary database load.

• Work with Product Managers, Frontend Engineers, QA and DevOps teams to develop and deliver backend features.

• Participate in code reviews, architecture discussions and technical decision-making.

• Contribute to engineering best practices, mentoring and long-term scalability initiatives.

What Do You Need to Become a Backend SDE-3 at PW?

The role requires a combination of backend programming, system design and distributed systems knowledge. Candidates should be comfortable working with modern backend technologies and solving complex scalability and performance challenges.

1. Backend Development

You should have strong hands-on experience with Node.js and/or Golang for developing and maintaining backend applications and services.

2. System Design and Distributed Systems

You need an understanding of scalable system design and distributed systems, including concepts related to reliability, performance and high availability.

3. Data Structures and Algorithms

Strong knowledge of Data Structures and Algorithms (DSA) is important for solving complex technical and backend engineering problems.

4. Microservices and REST APIs

Experience designing and developing scalable microservices and reliable REST APIs is relevant to building modular and high-performance backend systems.

5. Kafka and Asynchronous Processing

You should understand Kafka, messaging systems and event-driven architecture, along with asynchronous backend workflows and communication between distributed services.

6. Redis and Caching

Knowledge of Redis and caching strategies is required for improving application performance and reducing unnecessary database requests.

7. MongoDB and Database Optimisation

You should have experience with MongoDB, database design and query optimisation for handling backend data efficiently.

8. Cloud and DevOps

Familiarity with cloud platforms, containerisation and CI/CD workflows can support backend development and deployment.

9. Problem-Solving

Strong debugging and analytical skills are needed to identify backend issues, investigate performance bottlenecks and develop effective technical solutions.

Looking to Build Skills for a Backend Development Career?

A backend development career requires a strong foundation in programming, DSA, application development and deployment workflows. PW Skills offers programmes that cover some of these areas.

• Want to strengthen your development skills? Explore the Full Stack Development with AI certification by PW Skills to build a foundation in modern application development.

• Want to improve your programming and DSA foundation? Explore the Decode Python with DSA Course to work on programming concepts and problem-solving skills.

• Want to learn cloud and deployment workflows? The DevOps and Cloud Computing Course by PW Skills covers relevant areas of cloud computing and DevOps.

Check the latest job details and submit your application through the official PW job listing.