Athenahealth Technology Senior Data Engineer Interview Questions and Answers

Q1. How do you resolve critical issues?
Ans. 
I approach critical issues methodically, prioritizing impact, communication, and resolution strategies.
• Identify the issue: Quickly assess the problem's scope and impact on operations.

• Gather a team: Collaborate with relevant stakeholders to leverage diverse expertise.

• Analyze root cause: Use techniques like the 5 Whys or Fishbone Diagram to understand underlying issues.

• Develop a plan: Create a step-by-step action plan to...read more
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Q2. How do to handle stakeholder's interests?
Ans. 
Handle stakeholder's interests by understanding their needs, communicating effectively, and delivering results.
• Understand the stakeholders' needs and priorities

• Communicate regularly and effectively with stakeholders

• Involve stakeholders in decision-making processes

• Deliver results that align with stakeholders' interests

• Manage expectations and address concerns promptly
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SQL Rank functions.
Python easy to medium DSA programs.
Pyspark Concepts and questions.

Q1. Explain one of your projects in End to End
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Q1. What are some of the analytical functions available in SQL?
Ans. 
Analytical functions in SQL are used to perform calculations on sets of rows.
• Aggregate functions like SUM, AVG, COUNT, MIN, MAX

• Window functions like ROW_NUMBER, RANK, DENSE_RANK, LAG, LEAD

• Ranking functions like NTILE, PERCENT_RANK, CUME_DIST

• Statistical functions like STDDEV, VARIANCE

• String functions like CONCAT, SUBSTRING, TRIM
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