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Data Engineer Interview Experience - United States

March 1, 2025
Negative ExperienceNo Offer

Process

Utterly disappointing and waste of time as they did not schedule a recruiter pre screen or any calls but sent a 6 hour case exercise that involved writing various python methods to download pdf files from a url and parse text to extract information.

The case had subsequent tasks to write to a local sqllite file and also to expose the data via a fast api and create visualizations.

Overall the task was pretty rudimentary for a data engineer with a few years of experience.

However, the recruiter reviewed the test and chose to ignore almost all of the work to ask questions on some of the regular expressions via an email and expressed dismay that some of the fields weren’t extracted completely.

After two weeks of wait, and inquiring for updates, received a generic rejection email without any further explanation or feedback on the assessment.

If applying, I would definitely suggest to try to schedule a call and gauge their expectations on the role and the assessment before wasting so much energy and time on it.

I would rate the interview experience very negative based on above and would recommend the company to take their candidates seriously.

Questions

The 6 hour case exercise was to:

  1. download latest ADV reports from the SEC website, parse it to extract information on various funds such as name, address, phone number, number of employees, etc.
  2. Implement error logging and write to a local sqllite file.
  3. Clean and perform data transformation on the file to extract insights such as size of fund by AUM, employees, etc.
  4. Write API to expose the data
  5. Write mock tests for the API
  6. Create visualizations

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Interview Statistics

The following metrics were computed from 3 interview experiences for the Millennium Data Engineer role in United States.

Success Rate

0%
Pass Rate

Millennium's interview process for their Data Engineer roles in the United States is extremely selective, failing the vast majority of engineers.

Experience Rating

Positive33%
Neutral33%
Negative33%

Candidates reported having mixed feelings for Millennium's Data Engineer interview process in United States.

Millennium Work Experiences