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Avalara Technologies Technical Lead Interview Questions, Process, and Tips
Top Avalara Technologies Technical Lead Interview Questions and Answers
- Q1. Longest Substring Without Repeating Characters Given a string 'S' of length 'L', return the length of the longest substring without repeating characters. Example: Suppose ...read more
- Q2. Square Root (Integral) Given a number N, find its square root. You need to find and print only the integral part of square root of N. For eg. if number given is 18, answe ...read more
- Q3. System Design Question Design online conference booking platform User can see different conferences on online portal User can see active conferences on online portal User ...read more
Avalara Technologies Technical Lead Interview Experiences
4 interviews found
Anonymous
(2 Questions)
- Q1. System design of hotel booking system
- Ans.
Design a hotel booking system
Use a database to store information about hotels, rooms, availability, bookings, and customers
Implement a user-friendly interface for customers to search for hotels, view room availability, and make bookings
Include features like filtering by price, location, amenities, and room type
Handle payment processing securely and integrate with third-party booking platforms if needed
- Q2. Basics to advance Java concepts and data structure
Skills evaluated in this interview
I applied via LinkedIn and was interviewed in Mar 2024. There was 1 interview round.
20 mins online test with 40 questions related to aptitude, logical reasoning like compare left and right images, What will be next image in ? place. 10 mins additional candidate no technical internal assessment related to personality.
Interview Preparation Tips
- Aptitude
- Logical reasoning
Selected
I applied via Naukri.com and was interviewed before Oct 2022. There were 4 interview rounds.
(1 Question)
- Q1. Triggers, Rest API, LWC
(1 Question)
- Q1. Managerial logical round
(1 Question)
- Q1. Behavioral Questions
CodingNinjas
I was interviewed before May 2021.
(2 Questions)
Round duration - 60 Minutes
Round difficulty - Easy
Two DSA Problems and a design pattern was asked.
- Q1. Square Root (Integral)
Given a number N, find its square root. You need to find and print only the integral part of square root of N.
For eg. if number given is 18, answer is 4.
Input format :
Integer ... - Ans.
First explained O(N) solution.
interviewer asked to optimise this approach. Gave Log(N) approach. - Q2. Longest Substring Without Repeating Characters
Given a string 'S' of length 'L', return the length of the longest substring without repeating characters.
Example:
Suppose given input is ... - Ans. Brute Force
In the brute force approach, we will use two nested loops. The outer loop is used to select the starting index of the substring and the inner loop is used to fix the ending index of the substring. After selecting the substring, we will use another loop (or a method) to check whether the substring contains all unique characters or not using a HashSet.
Space Complexity: O(n)Explanation:O(L), where L is the len...
(1 Question)
Round duration - 60 Minutes
Round difficulty - Easy
It was a high level round. Checking what are different components and how they interact
- Q1. System Design Question
Design online conference booking platform
User can see different conferences on online portal
User can see active conferences on online portal
User can go and register itself in one or m... - Ans.
Tip 1 : Take requirements. Clear doubts
Tip 2 : Design minimum viable system
Tip 3 : Take P1 requirements
Interview Preparation Tips
Tip 1 : Medium Level DSA - Trees, Arrays, Strings
Tip 2 : High Level Design - Start with basic system then P1 Requirements
Tip 3 : Practice writing code. Online Coding round will be there
Tip 1 : Keep it small. Only projects, Tech stacks, achievements
Tip 2 : Write those Tech stacks and projects in which you are expert
Skills evaluated in this interview
Avalara Technologies interview questions for designations
Technical Lead Jobs at Avalara Technologies
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Interview questions from similar companies
(2 Questions)
- Q1. Transaction in Spring Boot
- Ans.
Transactions in Spring Boot help manage database operations as a single unit of work.
Transactions ensure ACID properties (Atomicity, Consistency, Isolation, Durability) for database operations.
Use @Transactional annotation to mark a method as transactional.
Transactions can be managed programmatically using TransactionTemplate.
Rollback can be triggered manually in case of exceptions.
Spring Boot supports both declarative
- Q2. Java Array and problem solving
Interview Preparation Tips
Skills evaluated in this interview
(1 Question)
- Q1. Our project contains interview question related to JAVA.
I applied via LinkedIn and was interviewed in Feb 2024. There was 1 interview round.
(2 Questions)
- Q1. Questions were mostly around system design, you will be given a case like a stock system and specific use case is asked to design end to end from UI to backend.
- Q2. Some of the system debugging/performance improvement questions are asked from both UI and backend.
Interview Preparation Tips
- System Design
- Performance Testing
- Performance improvement
(2 Questions)
- Q1. What is hoisting in Javascript
- Ans.
Hoisting is a behavior in JavaScript where variable and function declarations are moved to the top of their containing scope during compilation.
Variable declarations are hoisted to the top of their scope, but not their assignments.
Function declarations are fully hoisted, meaning they can be called before they are declared.
Hoisting can lead to unexpected behavior if not understood properly.
- Q2. What is function currying
- Ans.
Function currying is a technique in functional programming where a function with multiple arguments is transformed into a sequence of nested functions, each taking a single argument.
Currying allows partial application of a function, where some of the arguments are fixed and the rest are left to be supplied later.
It helps in creating reusable functions and improving code readability.
Example: const add = (a) => (b) => a ...
Skills evaluated in this interview
Selected
I applied via Referral and was interviewed before Dec 2023. There were 2 interview rounds.
(2 Questions)
- Q1. Implement minstack
- Q2. How load balancers work
- Ans.
Load balancers distribute incoming network traffic across multiple servers to ensure no single server is overwhelmed.
Load balancers monitor the health of servers and distribute traffic based on predefined algorithms.
They can be hardware-based or software-based.
Common algorithms used by load balancers include round-robin, least connections, and IP hash.
Load balancers can improve reliability and scalability of a website ...
(2 Questions)
- Q1. 2 sum problem to implement in O(n)
- Ans.
The Two Sum problem involves finding two numbers in an array that add up to a target value.
Iterate through the array and store the difference between the target and current element in a hashmap.
Check if the current element exists in the hashmap, if yes, return the indices of the current element and the stored difference.
Time complexity of O(n) can be achieved by using a hashmap to store elements and their indices.
- Q2. About the projects i have done
Skills evaluated in this interview
I applied via Naukri.com and was interviewed in Feb 2021. There were 4 interview rounds.
Interview Questionnaire
12 Questions
- Q1. Which design pattern implemented in project.
- Ans.
Implemented the Observer design pattern.
Used to maintain consistency between related objects
Allows for one-to-many relationships between objects
Used in event-driven systems
Example: Used to update UI when data changes in backend
- Q2. Solid principals
- Q3. Code coverage
- Q4. Unit testing
- Q5. Cloud services
- Q6. Cloud integrations
- Q7. Detail architecture of current project and what role you played
- Q8. What software architecture you implimented and why?
- Ans.
I have implemented a microservices architecture for scalability and flexibility.
Implemented microservices architecture using Docker and Kubernetes
Used API Gateway for routing and load balancing
Implemented service discovery using Consul
Implemented circuit breaker pattern using Hystrix
Implemented centralized logging using ELK stack
Implemented distributed tracing using Zipkin
Implemented event-driven architecture using Kaf...
- Q9. Writing some code logic snippet like sudo code
- Q10. How you improved stored procedure performance
- Ans.
I improved stored procedure performance by optimizing queries and indexes.
Identified and removed unnecessary joins and subqueries
Used appropriate indexing to speed up query execution
Reduced the number of round trips to the database by using batch processing
Rewrote complex queries to simpler ones
Used stored procedure parameters instead of variables to avoid recompilation
Used SET NOCOUNT ON to reduce network traffic
Used
- Q11. DB normalization and indexing
- Q12. C# oops questions
Interview Preparation Tips
Skills evaluated in this interview
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Senior Software Engineer
179
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|  ₹12.3 L/yr - ₹45 L/yr |
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Associate Analyst
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salaries
| ₹3.5 L/yr - ₹7.2 L/yr |
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Software Engineer
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| ₹14.1 L/yr - ₹25 L/yr |
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Technical Lead
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| ₹18.6 L/yr - ₹55 L/yr |
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Associate
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