# Software Engineer II
**Role:** Software Engineer · **Level:** L7
**Company:** [Swiggy](https://scaleengineer.com/companies/swiggy)
**Difficulty:** Hard
**Salary:** US$180000 - US$250000
**Experience:** 6 - 10
**Timeline:** ~7 days
This interview process is for a Software Engineer II (L7) role at Swiggy, focusing on assessing candidates' technical expertise, problem-solving abilities, system design skills, and cultural fit for a senior engineering position.
Canonical: https://scaleengineer.com/interviews/swiggy/l7-software-engineer
---
## Overall evaluation

- Technical Proficiency
- System Design
- Behavioral and Cultural Fit
- Experience and Impact

## Questions asked

- Design a URL shortening service.
- How would you design a notification system for Swiggy?
- Explain the CAP theorem and its implications.
- Describe a situation where you disagreed with a technical decision. How did you handle it?
- What are the challenges of working with a distributed system?
- How do you ensure data consistency in a distributed environment?
- Write a function to find the k-th largest element in an unsorted array.
- Discuss the pros and cons of using a message queue.
- How would you scale a web application to handle millions of users?
- Tell me about a time you failed. What did you learn from it?

## Preparation tips

### lists

- Review fundamental data structures and algorithms.
- Practice coding problems, focusing on time and space complexity.
- Study system design principles and common patterns.
- Prepare to discuss your past projects in detail, highlighting your contributions and impact.
- Understand Swiggy's business and technology stack.
- Brush up on behavioral interview techniques and prepare STAR method answers.
- Research common interview questions for senior software engineering roles.

### studyPlan

- {"title":"Data Structures and Algorithms Fundamentals","longDescription":"Weeks 1-2: Focus on core data structures (Arrays, Linked Lists, Trees, Graphs, Hash Tables) and algorithms (Sorting, Searching, Dynamic Programming, Greedy Algorithms). Practice problems on platforms like LeetCode, aiming for medium difficulty. Understand time and space complexity analysis.","shortDescription":"Weeks 1-2: Data Structures & Algorithms (Arrays, Lists, Trees, Graphs, Hash Tables, Sorting, Searching, DP, Greedy). LeetCode (Medium). Complexity Analysis."}
- {"title":"System Design Principles","longDescription":"Weeks 3-4: Dive into system design concepts. Study topics like distributed systems, databases (SQL vs. NoSQL), caching, load balancing, message queues, and microservices architecture. Review common design patterns and trade-offs. Practice designing systems for scale.","shortDescription":"Weeks 3-4: System Design (Distributed Systems, Databases, Caching, Load Balancing, Message Queues, Microservices). Design patterns & trade-offs."}
- {"title":"Behavioral and Cultural Fit","longDescription":"Week 5: Prepare for behavioral interviews. Reflect on your past experiences and prepare specific examples using the STAR method (Situation, Task, Action, Result) for questions related to teamwork, leadership, problem-solving, and handling challenges. Understand Swiggy's values.","shortDescription":"Week 5: Behavioral Interview Prep (STAR Method, Teamwork, Leadership, Problem-Solving). Swiggy values."}
- {"title":"Technology and Mock Interviews","longDescription":"Week 6: Focus on specific technologies relevant to Swiggy (e.g., Java/Python, Spring Boot, Kafka, Cassandra, AWS/GCP). Review your resume and be ready to discuss your projects in depth. Practice mock interviews to simulate the actual interview environment.","shortDescription":"Week 6: Technology Deep Dive (Java/Python, Cloud, Kafka, etc.). Resume review. Mock Interviews."}

## Location differences

- {"location":"Bangalore","differences":{"tips":["Be prepared to discuss specific examples of large-scale systems you've designed or worked on.","Understand Swiggy's business model and how technology supports it.","Showcase your ability to mentor junior engineers and lead technical initiatives.","Familiarize yourself with common cloud services and their use cases."],"interviewFocus":["Deep dive into distributed systems and microservices architecture.","Emphasis on operational excellence and incident management.","Problem-solving skills in complex, high-scale scenarios.","Leadership and mentorship capabilities."],"commonQuestions":["How would you design a distributed caching system for Swiggy's food delivery platform?","Discuss a time you had to deal with a production incident. What was your approach and what did you learn?","Explain the trade-offs between SQL and NoSQL databases for a high-throughput service like Swiggy's order management.","How do you ensure scalability and reliability in a microservices architecture?","Describe your experience with cloud platforms (AWS, GCP, Azure) and how you've used them to build scalable applications."]}}
- {"location":"Gurugram","differences":{"tips":["Practice coding problems on platforms like LeetCode, focusing on medium to hard difficulty.","Be ready to whiteboard your solutions and explain your thought process clearly.","Prepare to discuss your contributions to past projects and the impact you made.","Understand the importance of clean code and testing."],"interviewFocus":["Strong emphasis on data structures, algorithms, and their practical application.","System design with a focus on scalability and performance.","Code quality, testing strategies, and maintainability.","Ability to work independently and drive projects."],"commonQuestions":["Design an API gateway for Swiggy's mobile and web applications.","How would you optimize database queries for a rapidly growing user base?","Discuss a challenging technical problem you solved and the impact it had.","What are your strategies for maintaining code quality and reducing technical debt?","How do you approach performance tuning for backend services?"]}}

## Round 0: HR Screening
**Type:** HR / Recruiter Screen · **Difficulty:** Easy · **Duration:** 30 min
Initial screening by HR to discuss background and expectations.
This is typically the first or last round, conducted by HR. They will discuss your background, career aspirations, salary expectations, and provide an overview of the role and company culture. This is also an opportunity for you to ask any questions you may have about the process, the team, or Swiggy.
**Interviewers look for:** Clear understanding of the role and responsibilities.; Realistic expectations regarding compensation and career growth.; Genuine interest in Swiggy and the position.; Professionalism and positive attitude.
**Evaluation criteria:** Mutual understanding of role and expectations.; Alignment on compensation.; Candidate's enthusiasm and interest.; Clarification of any remaining doubts.
**Common rejection reasons:** Lack of alignment on salary expectations.; Unrealistic expectations about the role or company.; Poor understanding of the role's responsibilities.; Lack of enthusiasm for the opportunity.
## Questions

- What are your salary expectations?
- Why are you interested in Swiggy?
- What are your strengths and weaknesses?

## Preparation tips

- Be prepared to discuss your salary expectations.
- Research Swiggy's compensation benchmarks.
- Have questions ready about the role, team, and company.
- Express your enthusiasm for the opportunity.

## Round 1: Technical Coding Round 1
**Type:** Data Structures and Algorithms Interview · **Difficulty:** Hard · **Duration:** 60 min
Coding round to test DSA skills and problem-solving.
This round focuses on assessing your core programming skills. You will be asked to solve one or two coding problems, typically involving data structures and algorithms. The interviewer will evaluate your approach to problem-solving, the efficiency of your code, and your ability to communicate your thought process effectively. Expect questions that test your understanding of time and space complexity.
**Interviewers look for:** Strong grasp of fundamental data structures and algorithms.; Ability to translate a problem into an efficient code solution.; Clear communication of thought process.; Attention to detail in coding.
**Evaluation criteria:** Correctness of the solution; Efficiency of the solution (time and space complexity); Code clarity and maintainability; Problem-solving approach; Communication of the solution
**Common rejection reasons:** Inability to articulate thought process clearly.; Suboptimal algorithmic solutions.; Poorly written or inefficient code.; Lack of understanding of time/space complexity.
## Questions

- Given a binary tree, find its inorder traversal.
- Implement a function to reverse a linked list.
- Find the median of two sorted arrays.

## Preparation tips

- Practice coding problems on platforms like LeetCode, HackerRank, or GeeksforGeeks.
- Focus on understanding the underlying data structures and algorithms.
- Practice explaining your solutions out loud.
- Write clean, well-commented code.
- Be prepared to discuss edge cases and test your code.

## Round 2: System Design Round
**Type:** System Design Interview · **Difficulty:** Hard · **Duration:** 60 min
Design a complex system, focusing on scalability and reliability.
This round assesses your ability to design scalable, reliable, and maintainable systems. You'll be given an open-ended problem (e.g., design a service like Twitter's feed, a URL shortener, or a distributed cache) and expected to discuss various aspects of the design, including data modeling, API design, scalability bottlenecks, and trade-offs. Focus on breaking down the problem, identifying requirements, and proposing a well-reasoned solution.
**Interviewers look for:** Ability to design complex systems from scratch.; Knowledge of distributed systems principles.; Experience with scaling applications.; Pragmatic approach to design choices.
**Evaluation criteria:** Clarity and completeness of the design.; Scalability and performance considerations.; Robustness and fault tolerance.; Trade-off analysis and justification.; Understanding of relevant technologies.
**Common rejection reasons:** Inability to design scalable and reliable systems.; Lack of understanding of distributed system concepts.; Poor trade-off analysis.; Not considering failure scenarios.
## Questions

- Design a system to count unique visitors to a website.
- Design a rate limiter.
- Design a distributed key-value store.

## Preparation tips

- Study common system design patterns and concepts.
- Practice designing various systems, considering different requirements.
- Understand trade-offs between different technologies and approaches.
- Be prepared to draw diagrams and explain your design choices.
- Think about edge cases, failure modes, and monitoring.

## Round 3: Behavioral and Managerial Round
**Type:** Behavioral Interview · **Difficulty:** Medium · **Duration:** 45 min
Assess behavioral traits, teamwork, and cultural fit.
This round focuses on your behavioral and leadership qualities. You'll be asked questions about your past experiences, how you handle specific situations (e.g., conflicts, failures, successes), your motivations, and your career goals. Use the STAR method to provide structured and specific answers. The interviewer wants to understand how you work in a team, your leadership potential, and if you're a good cultural fit for Swiggy.
**Interviewers look for:** Evidence of collaboration and teamwork.; Ability to handle conflict and challenges constructively.; Ownership and accountability for work.; Alignment with Swiggy's values (e.g., customer obsession, innovation).; Growth mindset.
**Evaluation criteria:** Communication clarity; Teamwork and collaboration skills; Problem-solving approach in past experiences; Leadership and initiative; Cultural alignment with Swiggy
**Common rejection reasons:** Poor communication skills.; Lack of self-awareness.; Inability to provide specific examples.; Not aligning with company values or culture.; Lack of enthusiasm or interest.
## Questions

- Tell me about a time you had to work with a difficult colleague.
- Describe a project you are particularly proud of and your role in it.
- How do you handle constructive criticism?

## Preparation tips

- Prepare specific examples using the STAR method for common behavioral questions.
- Understand Swiggy's company culture and values.
- Be ready to discuss your strengths and weaknesses.
- Think about why you want to work at Swiggy.
- Ask thoughtful questions about the team and the role.