J'ai postulé via un recruteur. Le processus a pris 3 semaines. J'ai passé un entretien chez Confiz en juin 2025
Entretien
I went through three rounds of interviews at Confiz: a technical round covering Spark, streaming, ETL, and data lakes; a behavioral round; and a final technical round with the client involving PySpark, Python coding, and deep questions on data formats and warehousing.
The process felt solid, and I believe I performed well. However, after completing all rounds, I was completely ghosted—no rejection, no feedback, nothing—even after waiting three weeks.
For a senior-level role, this lack of communication is unprofessional. Candidates deserve at least a follow-up.
Questions d'entretien [1]
Question 1
A thorough technical interview covering a broad range of data engineering topics including Spark, Spark Streaming, ETL pipelines, Data warehousing and Data Lakes.
J'ai postulé en ligne. J'ai passé un entretien chez Confiz en mars 2025
Entretien
I went through multiple interview rounds with Confiz, starting with the manager, then the technical team, the team lead, and finally the data director. All went well, and I was told I had cleared each stage. However, after weeks of silence and no response to follow-ups via email, calls, or LinkedIn, it's clear the company lacks basic professional courtesy. As a seasoned professional with over 10 years of experience, I find this treatment highly disrespectful and disappointing. Time is valuable, and this kind of behavior is unacceptable for any organization claiming to value talent
Questions d'entretien [2]
Question 1
what are the windows function and implmeneted using pyspark to find the imediate last 3 value with partition and add them all and subtarct with current row to get the result.