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UnitedHealth Data Scientist Interview Questions and Answers

Updated 17 Nov 2021

UnitedHealth Data Scientist Interview Experiences

1 interview found

I applied via Naukri.com and was interviewed before Oct 2020. There were 3 interview rounds.

Interview Questionnaire 

1 Question

  • Q1. 1) Model building process of one of my previous projects 2) Random forest hyperparameters 3) ROC curve, using the ROC curve to set probability cutoffs in classication models 4) Gradient boosting techniques...
  • Ans. 

    Data Scientist interview questions on model building, random forest, ROC curve, gradient boosting, and real estate valuation

    • For model building, I followed the CRISP-DM process and used various algorithms like logistic regression, decision trees, and random forest

    • Random forest hyperparameters include number of trees, maximum depth, minimum samples split, and minimum samples leaf

    • ROC curve is a graphical representation of...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - My advice would be to search on Google regarding "100 data science interview questions" or something like it, and as you go through each question and its answer, just search the Wikipedia or Google for each concept for a little more depth. As for Python coding questions, most questions in such interviews are asked only about the Pandas library of Python. So try to study how to use Pandas to manipulate data. A good reference is the Python For Data Analysis book by Wes McKinney, whose free PDF is most probably available online on Google.

Skills evaluated in this interview

Interview questions from similar companies

Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
-
Result
-
Round 1 - Aptitude Test 

Basic quant and apt questions

Round 2 - Coding Test 

Run a model of ML or Dl

Round 3 - One-on-one 

(1 Question)

  • Q1. Check your interpersonal skills

I applied via Walk-in and was interviewed before Sep 2019. There were 3 interview rounds.

Interview Questionnaire 

3 Questions

  • Q1. Why u want to be part of this company?
  • Q2. What motivates u to get a job?
  • Q3. How u manage urself in hectic environment?
  • Ans. 

    I manage myself in a hectic environment by prioritizing tasks, staying organized, and practicing stress management techniques.

    • Prioritize tasks based on urgency and importance

    • Break down complex tasks into smaller, manageable steps

    • Use tools like to-do lists, calendars, and reminders to stay organized

    • Practice time management techniques, such as setting deadlines and allocating specific time slots for different tasks

    • Take s...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Not be so Over confident, Employer might trick u with his questions, But stick to u r opinion
Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(2 Questions)

  • Q1. What time intelligence functions can be used for ytd and qtd analysis
  • Ans. 

    Time intelligence functions like YTD (Year-to-Date) and QTD (Quarter-to-Date) can be used for YTD and QTD analysis in data analytics.

    • YTD analysis can be done using functions like YTD() or TOTALYTD() to calculate values from the beginning of the year up to the selected date.

    • QTD analysis can be done using functions like QTD() or TOTALQTD() to calculate values from the beginning of the quarter up to the selected date.

    • Thes...

  • Answered by AI
  • Q2. Difference between import and direct query
  • Ans. 

    Import brings data into Power BI for further analysis, while direct query connects to data source in real-time.

    • Import: Data is loaded into Power BI for analysis, improving performance but requiring periodic refreshes.

    • Direct Query: Connects to data source in real-time, allowing for up-to-date information but potentially slower performance.

    • Import is suitable for smaller datasets, while direct query is better for large da

  • Answered by AI

Skills evaluated in this interview

Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Not Selected

I applied via Walk-in and was interviewed before Aug 2023. There were 2 interview rounds.

Round 1 - HR 

(2 Questions)

  • Q1. Asked about my previous experience details
  • Q2. Asked about why I changed my job
Round 2 - Assignment 

About hospital and it's services

Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Naukri.com and was interviewed before Dec 2022. There were 4 interview rounds.

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 - Aptitude Test 

Basic English Grammar

Round 3 - Client Interview 

(1 Question)

  • Q1. Tell me about yourself. What was your role in previous organisation? Tell me about my last trip for 2 minutes.
  • Ans. 

    I am a dedicated professional with experience in project management and team leadership.

    • Led a team of 10 project coordinators in my previous organization

    • Managed multiple projects simultaneously, ensuring deadlines were met

    • Implemented new strategies to improve efficiency and productivity

    • Received recognition for outstanding performance in project execution

  • Answered by AI
Round 4 - Technical 

(1 Question)

  • Q1. Tell me about your self What was your role in previous organisation
  • Ans. 

    I am a dedicated professional with experience in project management and team leadership.

    • Led a team of 10 project coordinators in planning and executing multiple projects simultaneously

    • Managed project timelines, budgets, and resources to ensure successful project completion

    • Collaborated with cross-functional teams to identify project requirements and deliverables

    • Implemented project management best practices to improve ef...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Just be confident don't use hindi language when your are applying for international process!
Interview experience
3
Average
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Naukri.com and was interviewed in Dec 2023. There were 2 interview rounds.

Round 1 - Assignment 

Power bi assignment was given to solve

Round 2 - Technical 

(6 Questions)

  • Q1. Optimization techniques in sql
  • Ans. 

    Optimization techniques in SQL involve using indexes, query optimization, and proper database design.

    • Use indexes on columns frequently used in WHERE clauses to speed up query performance

    • Avoid using SELECT * and instead specify only the columns needed in the query

    • Optimize queries by using appropriate join types and conditions

    • Normalize database tables to reduce redundancy and improve query efficiency

  • Answered by AI
  • Q2. Sub queries in sql
  • Ans. 

    Sub queries in SQL are queries nested within another query to retrieve data based on the result of the outer query.

    • Sub queries can be used in SELECT, INSERT, UPDATE, and DELETE statements.

    • They can be used to filter results, retrieve data from multiple tables, or perform calculations.

    • Example: SELECT * FROM table1 WHERE column1 = (SELECT column2 FROM table2 WHERE condition);

  • Answered by AI
  • Q3. Types of Join in sql
  • Ans. 

    Types of joins in SQL include inner join, left join, right join, and full outer join.

    • Inner join: Returns rows when there is a match in both tables

    • Left join: Returns all rows from the left table and the matched rows from the right table

    • Right join: Returns all rows from the right table and the matched rows from the left table

    • Full outer join: Returns all rows when there is a match in either table

  • Answered by AI
  • Q4. Time intelligence functions in power bi
  • Ans. 

    Time intelligence functions in Power BI are used to analyze and compare data based on time periods.

    • Time intelligence functions help in calculating year-to-date, month-to-date, and other time-based calculations.

    • Functions like TOTALYTD, SAMEPERIODLASTYEAR, and PARALLELPERIOD are commonly used for time intelligence in Power BI.

    • These functions allow for easy comparison of data across different time periods and help in tren

  • Answered by AI
  • Q5. Logical questions in aptitude
  • Q6. Row level security in power bi
  • Ans. 

    Row level security in Power BI allows users to restrict access to specific rows of data based on their role or criteria.

    • Row level security can be implemented by creating roles in Power BI and defining rules to filter data based on user roles.

    • Users can be assigned to specific roles which determine the data they have access to.

    • Row level security helps in ensuring data privacy and compliance with regulations.

    • For example, ...

  • Answered by AI

Skills evaluated in this interview

Round 1 - Case Study 

C programming

Interview Preparation Tips

Interview preparation tips for other job seekers - software development
Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
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 - Coding Test 

Basic coding questions related to javascript or Java

Round 3 - Coding Test 

Specific to your skills, for FE web development angular related questions.

Round 4 - HR 

(1 Question)

  • Q1. Normal salary negotiation

Interview Preparation Tips

Interview preparation tips for other job seekers - Prepare the basics of coding and always be positive.
Interview experience
3
Average
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
Not Selected

I applied via unstop and was interviewed before Oct 2023. There were 3 interview rounds.

Round 1 - Coding Test 

It was medium to difficult level test

Round 2 - Technical 

(2 Questions)

  • Q1. Questions about core subjects like oops pillars
  • Q2. Questions about projects, technologies used
Round 3 - HR 

(2 Questions)

  • Q1. Why do you want to join this
  • Q2. Your previous experience and questions about your background

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UnitedHealth Data Scientist Salary
based on 210 salaries
₹10 L/yr - ₹34.5 L/yr
48% more than the average Data Scientist Salary in India
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2.9/5

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2.4

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3.8

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2.5

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2.5

Company culture

2.1

Promotions

2.3

Work satisfaction

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