Data Engineer

At Wissen Technology, we deliver niche, custom-built products that solve complex business challenges across industries worldwide. Founded in 2015, our core philosophy is built around a strong product engineering mindset, ensuring every solution is architected and delivered right the first time. Today, Wissen Technology has a global footprint with 2000 employees across offices in the US, UK, UAE, India, and Australia.

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Technical

1. What is the difference between data warehousing and data lakes, and when would you use each?
2. How do you optimize a slow-running SQL query?
3. Explain the ETL data pipeline process and common challenges you might face.

Scenario

1. What would you do if a scheduled data pipeline fails midway through processing a large dataset?
2. How would you handle missing or inconsistent data incoming from an external API source?

HR

1. Tell me about a time you had to learn a new tool or technology quickly.
2. How do you handle shifting priorities and tight deadlines on a project?

About Wissen Technology

1. How does Wissen Technology's focus on custom-built product engineering align with your career goals in data engineering?

Practice questions written from the job listing, not this company's real interview questions.

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