Avalara

Software Engineer

Software EngineerSoftware Engineer IIMedium to Hard

The Software Engineer II interview process at Avalara is designed to assess a candidate's technical proficiency, problem-solving abilities, and cultural fit within the company. It typically involves multiple rounds, starting with an HR screening, followed by technical interviews focusing on data structures, algorithms, and system design, and concluding with a managerial interview to evaluate leadership potential and team collaboration skills.

Rounds

4

Timeline

~14 days

Experience

2 - 5 yrs

Salary Range

US$110000 - US$140000

Total Duration

210 min

Overall Evaluation Criteria

Technical Proficiency

Technical Skills (Data Structures, Algorithms, System Design)
Problem-Solving Abilities
Communication Skills
Teamwork and Collaboration
Cultural Fit
Adaptability and Learning Agility

Communication and Collaboration

Ability to articulate thought process during problem-solving.
Clarity and conciseness in explaining technical concepts.
Active listening skills.

Cultural Fit and Motivation

Alignment with Avalara's values (Integrity, Customer Focus, Innovation, Teamwork).
Enthusiasm for the role and company.
Potential for growth within the organization.

Preparation Tips

1Review fundamental data structures (arrays, linked lists, trees, graphs, hash maps) and algorithms (sorting, searching, dynamic programming, graph traversal).
2Practice coding problems on platforms like LeetCode, HackerRank, or AlgoExpert, focusing on medium to hard difficulty.
3Study system design principles, including scalability, reliability, availability, and common architectural patterns (e.g., microservices, load balancing, caching).
4Prepare for behavioral questions by using the STAR method (Situation, Task, Action, Result) to structure your answers.
5Research Avalara's business, products, and recent news to understand its market position and challenges.
6Prepare thoughtful questions to ask the interviewers about the role, team, and company culture.

Study Plan

1

Data Structures Fundamentals

Weeks 1-2: Data Structures & Basic Algorithms. Practice implementations and problem-solving.

Weeks 1-2: Focus on core data structures (arrays, linked lists, stacks, queues, trees, graphs, hash tables) and their common operations. Practice implementing these structures and solving problems related to them. Cover basic algorithms like sorting (quicksort, mergesort), searching (binary search), and recursion.

2

Algorithmic Problem Solving

Weeks 3-4: Advanced Algorithms & Intro to System Design. Focus on optimization and basic design patterns.

Weeks 3-4: Dive deeper into algorithms, including dynamic programming, graph algorithms (BFS, DFS, Dijkstra's), and string manipulation. Work on problems that require optimizing time and space complexity. Start exploring common system design concepts like API design, database choices, and caching strategies.

3

System Design and Behavioral Preparation

Weeks 5-6: System Design & Behavioral Prep. Practice designing systems and structuring behavioral answers.

Weeks 5-6: Concentrate on system design. Study topics such as distributed systems, microservices architecture, load balancing, message queues, database scaling, and CAP theorem. Practice designing scalable systems for common applications (e.g., URL shortener, social media feed). Simultaneously, prepare for behavioral questions using the STAR method, reflecting on past experiences.

4

Mock Interviews and Final Review

Week 7: Mock Interviews & Final Review. Practice and refine answers.

Week 7: Mock interviews, both technical and behavioral. Refine answers, identify weak areas, and practice articulating your thought process clearly. Review company-specific information and prepare insightful questions for the interviewers.

Commonly Asked Questions

Write a function to find the kth largest element in an unsorted array.
Design a system to handle real-time notifications for a social media platform.
Tell me about a time you disagreed with a technical decision and how you handled it.
How would you optimize a slow database query?
Explain the difference between a process and a thread.
Describe your experience with cloud platforms like AWS or Azure.
How do you stay updated with new technologies and industry trends?
What are your strengths and weaknesses as a software engineer?
Design an API for a simple e-commerce product catalog.

Location-Based Differences

Seattle, WA

Interview Focus

Emphasis on practical application of data structures and algorithms.Understanding of cloud-native technologies (AWS, Azure, GCP).Experience with Agile methodologies and CI/CD pipelines.

Common Questions

Describe a challenging technical problem you solved at your previous role.

How do you approach designing a scalable system for a growing user base?

Tell me about a time you had to work with a difficult team member.

Tips

Be prepared to discuss specific projects and your contributions in detail.
Familiarize yourself with Avalara's core products and services.
Highlight any experience with distributed systems and microservices architecture.

Remote

Interview Focus

Strong understanding of object-oriented programming principles.Experience with database design and optimization.Ability to articulate technical concepts clearly and concisely.

Common Questions

How do you ensure code quality and maintainability?

What are your thoughts on test-driven development (TDD)?

Describe a situation where you had to adapt to a significant change in project requirements.

Tips

Showcase your ability to collaborate effectively in a remote or hybrid work environment.
Be ready to discuss your preferred programming languages and frameworks.
Demonstrate a proactive approach to learning and problem-solving.

Process Timeline

1
Recruiter Screen45m
2
Coding Challenge60m
3
System Design Interview60m
4
Hiring Manager Interview45m

Interview Rounds

4-step process with detailed breakdown for each round

1

Recruiter Screen

Initial screening to assess basic qualifications and cultural fit.

HR ScreeningMedium
45 minRecruiter/HR

This initial screening call with a recruiter aims to understand your background, career aspirations, and basic qualifications for the role. They will also provide an overview of Avalara and the interview process. Be prepared to discuss your resume and why you are interested in this specific position.

What Interviewers Look For

Candidate's ability to translate a problem into code.Understanding of time and space complexity.Basic coding proficiency.

Evaluation Criteria

Understanding of basic data structures (arrays, linked lists, hash maps).
Ability to write clean, functional code.
Problem-solving approach.

Questions Asked

Tell me about yourself.

Behavioral

Why are you interested in Avalara?

BehavioralCompany Fit

What are your salary expectations?

Behavioral

What are your strengths and weaknesses?

Behavioral

Describe your experience with [specific technology mentioned on resume].

TechnicalExperience

Preparation Tips

1Be ready to summarize your resume and highlight relevant experience.
2Clearly articulate why you are interested in Avalara and the Software Engineer II role.
3Prepare questions about the company culture, team structure, and the role's responsibilities.

Common Reasons for Rejection

Poor communication of thought process.
Inability to solve basic coding problems.
Lack of understanding of fundamental data structures and algorithms.
2

Coding Challenge

Assess coding skills with data structures and algorithms problems.

Technical Interview (Data Structures & Algorithms)Hard
60 minSoftware Engineer

This technical interview focuses on your ability to solve coding challenges. You will be asked to write code, typically in a shared editor, to solve problems related to data structures and algorithms. The interviewer will assess your problem-solving approach, coding style, and understanding of complexity.

What Interviewers Look For

Candidate's approach to solving algorithmic problems.Code quality, readability, and maintainability.Ability to identify and handle edge cases.Clear communication of the solution and its trade-offs.

Evaluation Criteria

Proficiency in data structures and algorithms.
Ability to write efficient and correct code.
Problem-solving skills.
Understanding of time and space complexity (Big O notation).

Questions Asked

Given a binary tree, invert the tree.

Data StructuresRecursion

Find the first non-repeating character in a string.

StringsHash Maps

Implement a function to check if a linked list has a cycle.

Data StructuresLinked Lists

Given two sorted arrays, merge them into a single sorted array.

ArraysAlgorithms

Find the median of two sorted arrays.

ArraysAlgorithmsBinary Search

Preparation Tips

1Practice coding problems on platforms like LeetCode, HackerRank, focusing on medium to hard difficulty.
2Be prepared to explain your thought process step-by-step.
3Write clean, well-commented code.
4Consider and discuss time and space complexity for your solutions.
5Practice thinking out loud.

Common Reasons for Rejection

Inability to solve coding problems efficiently.
Poorly optimized solutions.
Difficulty explaining the thought process.
Lack of understanding of edge cases.
3

System Design Interview

Assess ability to design scalable and robust software systems.

Technical Interview (System Design)Hard
60 minSenior Software Engineer / Architect

This round evaluates your ability to design scalable and robust software systems. You'll be presented with a high-level problem (e.g., design Twitter's news feed, design a URL shortener) and expected to discuss various aspects of the system, including data storage, APIs, scalability, and potential bottlenecks.

What Interviewers Look For

Candidate's ability to break down a large problem into smaller components.Knowledge of common architectural patterns.Understanding of how different system components interact.Ability to justify design choices and discuss trade-offs.

Evaluation Criteria

System design principles (scalability, reliability, availability).
Ability to design complex systems.
Trade-off analysis.
Understanding of databases, caching, load balancing, and APIs.

Questions Asked

Design a URL shortening service like bit.ly.

System DesignScalabilityDatabases

Design the Twitter feed.

System DesignScalabilityAPIsDatabases

How would you design a rate limiter?

System DesignScalability

Design a system to count unique visitors to a website.

System DesignScalabilityData Processing

Design an API for a ride-sharing service.

System DesignAPIsReal-time

Preparation Tips

1Study system design concepts: load balancing, caching, databases (SQL vs. NoSQL), message queues, CDNs.
2Practice designing common systems like social media feeds, ride-sharing apps, or e-commerce platforms.
3Be prepared to discuss trade-offs between different design choices.
4Think about scalability, availability, and fault tolerance.
5Draw diagrams to illustrate your design.

Common Reasons for Rejection

Lack of understanding of system design principles.
Inability to design scalable and reliable systems.
Poor trade-off analysis.
Difficulty communicating complex design decisions.
4

Hiring Manager Interview

Assess behavioral fit, teamwork, and career aspirations.

Managerial InterviewMedium
45 minHiring Manager

This interview with the hiring manager focuses on your behavioral aspects, leadership potential, and how you would fit into the team and company culture. Expect questions about your past experiences, how you handle challenges, your career goals, and your understanding of teamwork and collaboration.

What Interviewers Look For

Candidate's ability to work effectively in a team.How they handle conflict and feedback.Their understanding of software development best practices.Their potential to grow and contribute to the team's success.Alignment with company values.

Evaluation Criteria

Teamwork and collaboration skills.
Problem-solving approach in a team context.
Communication and interpersonal skills.
Motivation and career aspirations.
Cultural alignment with Avalara's values.

Questions Asked

Tell me about a time you had a conflict with a team member and how you resolved it.

BehavioralTeamworkConflict Resolution

Describe a project you are particularly proud of and your role in it.

BehavioralAccomplishment

How do you handle constructive criticism?

BehavioralFeedback

Where do you see yourself in 5 years?

BehavioralCareer Goals

How do you prioritize your work when faced with multiple tasks?

BehavioralTime Management

Preparation Tips

1Prepare examples using the STAR method for common behavioral questions (teamwork, conflict resolution, leadership, failure).
2Research Avalara's company values and be ready to discuss how you align with them.
3Think about your career goals and how this role fits into them.
4Be enthusiastic and demonstrate a positive attitude.
5Prepare thoughtful questions for the hiring manager.

Common Reasons for Rejection

Poor cultural fit.
Lack of alignment with team values.
Inability to articulate career goals.
Negative attitude towards past experiences.
Lack of enthusiasm for the role or company.

Commonly Asked DSA Questions

Frequently asked coding questions at Avalara

View all
Integer to English WordsHARDAbbreviating the Product of a RangeHARD