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      Colloquio per Software Engineer

      11 apr 2022
      Candidato anonimo a colloquio
      Santa Barbara, CA

      Altre recensioni di colloqui per Software Engineer presso Evidation Health

      Colloquio per Software Engineer

      22 dic 2019
      Candidato anonimo a colloquio
      Nessuna offerta
      Esperienza negativa
      Colloquio nella media
      Nessuna offerta
      Esperienza positiva
      Colloquio nella media

      Candidatura

      Ho presentato la mia candidatura online. La procedura ha richiesto 2 settimane. Ho sostenuto un colloquio presso Evidation Health (Santa Barbara, CA) nel mese di mar 2020

      Colloquio

      Interview process was your typical: 1. Initial discussion with recruiter. Very brief, maybe ~15 minutes, just to kind of discuss background and review. 2. Online technical screening. This was performed via Hackerrank, and was timed. Time alloted was very generous.

      Domande di colloquio [5]

      Domanda 1

      You have an SQL table (in your favorite SQL database) that looks like this. | userid | date | city | | ------ | ---------- | -------- | | 1 | 2015-03-01 | Seattle | | 1 | 2015-04-06 | Portland | | 22 | 2015-02-23 | New York | 1. Write a query to count thenumber of rows per month for Seattle. 2. Write a query to identify the month with the most rows for Seattle. 3. What flavor of SQL did you write your above answer in?
      Rispondi alla domanda

      Domanda 2

      Sort these by how long it takes to read one random byte of data: SSD, CPU L2 Cache, S3 (accessed from your laptop), redis*, HDD. * Assume the redis server is running on a separate machine in the same building as your client and that the server and client have a wired ethernet connection between them.
      Rispondi alla domanda

      Domanda 3

      Write a program in a language of your choice to read in two CSVs with the same columns as those below, inner join them on `userid`, and return the joined rows. Instead of two separate `min_score` columns, combine them in a single `min_score` column filled with the min of the `min_scores` from each input CSV. Example: ``` input1.csv userid,age,min_score 1,23,6 6,54,300 2,39,40 input2.csv userid,state,min_score 1,CA,12 6,AK,44 2,WA,100 output.csv userid,age,state,min_score 1,23,CA,6 6,54,AK,44 2,39,WA,40 ```
      Rispondi alla domanda

      Domanda 4

      Imagine we have a system that's responsible for counting the total number of pages viewed on a website. It's a single process on a single machine, and it has a RESTful HTTP API with one endpoint. It looks like this: ``` POST /increment?n=N ``` Whenever this endpoint is hit, the system will increment its internal count by `N`, open its state file on disk, overwrite the state file with the new value of `N`, and close the file. There are many webserver processes on many machines, all calling into this system. Every time a webserver sees a web request, it calls out on the counter system like this: ``` POST /increment?n=1 ``` Please answer the following: 1. Unsurprisingly, the system is having trouble keeping up. What steps would you take to improve the throughput of the system? 2. Are there any tradeoffs you consider as you take those steps?
      Rispondi alla domanda

      Domanda 5

      Imagine you just logged into a Linux server to check on how your data pipeline is running. You notice that a resource intensive job that is usually CPU bound and takes an hour to run has been running for 8 hours. What could have happened? List your top several hypotheses. For each hypothesis, exactly how do you test it? What tools do you use?
      Rispondi alla domanda
      2

      Candidatura

      Ho presentato la mia candidatura online. La procedura ha richiesto 3 mesi. Ho sostenuto un colloquio presso Evidation Health

      Colloquio

      Here are the steps for the interview process: 1. Initial 30 min recruiter interview 2. 2 hr long coding test (3 problems to solve) 3. 45 min long technical interview with the hiring manager 4. 1 hr long technical interview with the data engineer (coding included) 5. Onsite interview (4 sessions where 3 sessions have coding) I wasn't given my onsite interview schedule beforehand even though the recruiter mentioned that it would be given before the onsite interview. The hiring manager was very curious about my AWS experience at step 3 and I explained him that I didn't have extensive experience except some beginner level experience. He again brought this issue during the onsite interview and my response was same. If he was too concerned about my AWS experience, then he should have stopped the interview after step 3. Again, he asked lot of NDA type of questions during the onsite interview that was very disturbing, unprofessional. This was a software engineer position where no definitive experience was required. However, it is clear from the interview steps( 1 to 5) that the position requires definitely experience in different domain. Overall, it was a very unprofessional interview experience. It wasted a lot of time.

      Domande di colloquio [1]

      Domanda 1

      Coding questions. Some questions are from my previous experience.
      Rispondi alla domanda
      5
      avatar
      Risposta di Evidation Health
      6y
      Dear Candidate, Thank you for sharing your feedback. We value our candidates and therefore are continuously looking to improve our interview process and candidate experience. If you would like to discuss further, please don't hesitate to contact us at hiring@evidation.com. - The Evidation Team

      Colloquio per Software Engineer

      27 feb 2019
      Candidato anonimo a colloquio
      San Francisco, CA
      Nessuna offerta
      Esperienza negativa
      Colloquio facile

      Candidatura

      Ho presentato la mia candidatura online. La procedura ha richiesto un giorno. Ho sostenuto un colloquio presso Evidation Health (San Francisco, CA) nel mese di gen 2019

      Colloquio

      Third class. The codility test was given. Nailed it and then got automated reply from the recruiter. I dont recommend this company at all. Please DO NOT WASTE your time here.

      Domande di colloquio [1]

      Domanda 1

      Standard Data structure questions
      1 risposta
      8
      avatar
      Risposta di Evidation Health
      7y
      Dear Candidate, We are sorry you did not have a positive experience in the beginning stages of our interview process with our coding test. We review all tests and make decisions to move forward only with candidates we feel are the closest match for the particular role. - The Evidation Team