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United Airlines Senior Data Scientist Interview Questions and Answers

Updated 12 Jun 2024

United Airlines Senior Data Scientist Interview Experiences

1 interview found

Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
-
Result
Not Selected

I applied via Referral and was interviewed in May 2024. There was 1 interview round.

Round 1 - One-on-one 

(1 Question)

  • Q1. How regularisation works in random forest
  • Ans. 

    Regularisation in random forest helps prevent overfitting by controlling the complexity of the model.

    • Regularisation in random forest is achieved by limiting the depth of the trees in the forest.

    • It helps prevent overfitting by reducing the complexity of the model and improving generalization.

    • Regularisation parameters like max_depth, min_samples_split, and min_samples_leaf can be tuned to control the complexity of the mo

  • Answered by AI

Skills evaluated in this interview

Interview questions from similar companies

Interview experience
3
Average
Difficulty level
Easy
Process Duration
Less than 2 weeks
Result
Not Selected

I applied via Company Website and was interviewed in Nov 2024. There was 1 interview round.

Round 1 - One-on-one 

(5 Questions)

  • Q1. Tell me about your self
  • Ans. 

    I am a data analyst with a background in statistics and programming, passionate about turning data into actionable insights.

    • Background in statistics and programming

    • Experience in data analysis and visualization tools like Python, R, and Tableau

    • Strong problem-solving and critical thinking skills

    • Ability to communicate complex data findings to non-technical stakeholders

  • Answered by AI
  • Q2. What are your career goals
  • Ans. 

    My career goal is to become a senior data analyst in a reputable company, where I can utilize my skills to drive data-driven decision-making and contribute to the organization's success.

    • Advance to a senior data analyst role

    • Contribute to data-driven decision-making

    • Work for a reputable company

    • Continuous learning and skill development

  • Answered by AI
  • Q3. What is your strength and weakness
  • Ans. 

    Strength: Strong analytical skills, Weakness: Overthinking

    • Strength: Ability to analyze complex data sets and derive meaningful insights

    • Strength: Proficiency in data visualization tools like Tableau and Power BI

    • Weakness: Tendency to overthink and spend too much time on minor details

    • Weakness: Struggle with delegating tasks and trusting others to complete them

  • Answered by AI
  • Q4. Intresting role about company
  • Q5. Developing skills

Interview Preparation Tips

Topics to prepare for Safran Engineering Services India Data Analyst interview:
  • Self Service
Interview preparation tips for other job seekers - Be strong to communicate with others.... Trust is important
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Not Selected

I appeared for an interview in Feb 2025.

Round 1 - Coding Test 

Data analysis , SQL, python, ML

Round 2 - Coding Test 

Excellent performance

Round 3 - HR 

(2 Questions)

  • Q1. Tell me about your self
  • Q2. Are you comfortable to position
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I appeared for an interview before Mar 2024.

Round 1 - Coding Test 

Two practical coding challenges will be followed by a multiple-choice section and then a system design task.

Round 2 - Case Study 

Develop an airline system that facilitates flight ticket booking.

Round 3 - HR 

(2 Questions)

  • Q1. What are the reasons for your interest in this position?
  • Ans. 

    I'm excited about this position due to its alignment with my skills, growth opportunities, and the chance to contribute to impactful projects.

    • Alignment with my expertise in software development, particularly in technologies like Java and cloud computing.

    • Opportunities for professional growth, such as leading projects and mentoring junior developers.

    • The company's commitment to innovation and its focus on developing solut...

  • Answered by AI
  • Q2. Can you describe a situation in which you encountered challenges and explain how you overcame them?
  • Ans. 

    Faced a critical deadline with a complex project; collaborated with the team to streamline processes and deliver on time.

    • Identified bottlenecks in the development process, such as unclear requirements and lack of communication.

    • Organized daily stand-up meetings to enhance team collaboration and ensure everyone was aligned on tasks.

    • Implemented a task management tool to track progress and prioritize work effectively.

    • Condu...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - For the technical round, be prepared to discuss the latest technologies in use and demonstrate a strong understanding of data structures and reactive frameworks. Being a full stack developer is advantageous. Additionally, you should be familiar with design patterns and design principles, as well as best practices for architectural flow.
Interview experience
4
Good
Difficulty level
-
Process Duration
2-4 weeks
Result
Selected Selected

I applied via Referral and was interviewed in Jan 2023. There were 2 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Properly align and format text in your resume. A recruiter will have to spend more time reading poorly aligned text, leading to high chances of rejection.
View all tips
Round 2 - Technical 

(2 Questions)

  • Q1. Asked about Projects ?
  • Q2. Asked about algorithms

Interview Preparation Tips

Interview preparation tips for other job seekers - Be prepared with your cv. Add all technical details and study the models u mentioned properly
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
-
Result
-
Round 1 - Technical 

(2 Questions)

  • Q1. What is the internal implementation of Hashing and what is collision?
  • Ans. 

    Hashing is a technique used to map data to a fixed-size array, collision occurs when two different inputs produce the same hash value.

    • Hashing involves using a hash function to map data to a fixed-size array.

    • Collision happens when two different inputs produce the same hash value.

    • Common techniques to handle collisions include chaining and open addressing.

  • Answered by AI
  • Q2. Is time complexity of HashMap always O(1) ?
  • Ans. 

    No, time complexity of HashMap is not always O(1).

    • Time complexity of HashMap is O(1) on average, but can degrade to O(n) in worst case scenarios.

    • Worst case scenarios include hash collisions, which can lead to linear probing and degrade performance.

    • Load factor and capacity of the HashMap can also affect time complexity.

    • In scenarios where many keys hash to the same index, the time complexity can degrade.

  • Answered by AI
Round 2 - One-on-one 

(1 Question)

  • Q1. Yet to have the interview. Ambition box is forcefully making me enter these details

Skills evaluated in this interview

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all tips
Round 2 - Technical 

(1 Question)

  • Q1. Common technical questions
Round 3 - Technical 

(1 Question)

  • Q1. Advance Technical Questions based on your skill set taken by architect
Round 4 - Coding Test 

Common coding problems difficulty laver moderate

Round 5 - Behavioral 

(1 Question)

  • Q1. Common managerial question ,scenario base questions

Interview Preparation Tips

Interview preparation tips for other job seekers - Practice common number and string interview questions.
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
Not Selected

I applied via Referral and was interviewed in Sep 2024. There were 2 interview rounds.

Round 1 - Technical 

(2 Questions)

  • Q1. Node js working in detail
  • Ans. 

    Node.js is a runtime environment that allows you to run JavaScript on the server side.

    • Node.js is built on Chrome's V8 JavaScript engine.

    • It uses an event-driven, non-blocking I/O model that makes it lightweight and efficient.

    • Node.js is commonly used for building server-side applications, APIs, and real-time applications.

    • It has a large ecosystem of libraries and frameworks, such as Express.js and Socket.io.

  • Answered by AI
  • Q2. Timer working in node
  • Ans. 

    In Node.js, timers can be implemented using functions like setTimeout() and setInterval().

    • Use setTimeout() to execute a function once after a specified delay

    • Use setInterval() to execute a function repeatedly at a specified interval

    • Clear a timer using clearTimeout() or clearInterval()

    • Example: setTimeout(() => { console.log('Timer executed!'); }, 2000);

  • Answered by AI
Round 2 - Behavioral 

(2 Questions)

  • Q1. HLD questions on db and backend
  • Q2. Relational non relational db

Skills evaluated in this interview

Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(1 Question)

  • Q1. Asked about the project

Analyst Interview Questions & Answers

Go First user image Harsh Yadav

posted on 20 Sep 2024

Interview experience
3
Average
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Aptitude Test 

Good questions like what is data science

Round 2 - Coding Test 

What is python boss was a good

Interview Preparation Tips

Interview preparation tips for other job seekers - iusseybsds

United Airlines Interview FAQs

How many rounds are there in United Airlines Senior Data Scientist interview?
United Airlines interview process usually has 1 rounds. The most common rounds in the United Airlines interview process are One-on-one Round.

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United Airlines Senior Data Scientist Interview Process

based on 1 interview

Interview experience

5
  
Excellent
View more

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