Hire Better ETL Developers To Improve Data Modelling

What is an ELT Developer?

An ETL Developer is responsible for designing data storage systems and entering the data that is to be stored in that system. ETL, short for extract, transform, load, refers to the process of inputting business data into a data warehousing system, testing its performance, and troubleshooting it before making it go live. After considering a company’s data situation, ETL Developers offer the most effective solutions for data storage.

These professionals are either employed by a company or might act as consultants to multiple companies. The increasing need for data storage solutions is persuading companies to find the best ETL Developers, which is why the ETL online test comes in handy to help employers secure the right talent. 

While devising data storage solutions for companies and administering the process of data loading into the systems, ETL Developers perform a variety of functions. Given below are the primary duties of an ETL Developer:

  • Identify Data Storage Needs
    The primary task of the ETL Developer is to determine the precise storage needs of the company.They should be able to figure out the current data situation and analyze various options to suggest the right solutions.
     
  • Building a Data Warehouse
    Based on the organizational needs, the ETL Developer then plans an outline for a data warehousing system and works closely with the development team to build the data warehouse.
     
  • ETL Process
    After the development of the warehousing system, the ETL Developer takes out the necessary data and transfers it to the new system. 
     
  • Test and Troubleshoot
    Once the system is functional, the ETL Developer must evaluate their designs to ensure its smooth functioning. If any problems arise, they’ll fix it.

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About the ETL Assessment

ETL assessments are a surefire way to assess the technical skills of the ETL Developers as these are specially designed and validated by experienced subject matter experts as specified by industry standards. Extract, transform, and load is the process used in data warehousing, which includes crucial steps like data extraction, data transformation, and data loading into the destination system. ETL professionals implement this process to get data warehouse information from unorganized data. This process helps business users and high-level authorities to make critical business decisions. Considering such strenuous job responsibilities, it all makes sense for employers to opt for carefully curated online ETL tests. Such assessment makes the job of recruiters and hiring managers extremely easy, thus helping them better gauge the professional competencies of candidates.

Why should you use Mercer| Mettl’s ETL Developer Test? 

Mettl's ETL assessments help recruiters in making informed hiring decisions, with the choicest selection of questions designed to cater to the skill levels that a veteran ETL professional would be desired to possess. We can benchmark these tests for particular job roles based on clients’ requirements. ETL online test helps in bringing to the fore all the relevant strengths and weaknesses of the candidates who appear for the ETL Developer test. This way, employers get their hands on the right talent.

This Test Will Help You Measure:

  • Skills in Data Cleansing
  • Expertise in ETL Informatica PowerCenter
  • Expertise in BI & Reporting Business Objects 6.5 Crystal Reports xi/6.x, working knowledge of Cognos 8.4, SQL Server Reporting Services
  • Knowledge of C, Unix Shell Scripting, SQL, PL/SQL, ANSI SQL, JAVA, Transact SQL, SQL*Plus, HTML 4.0, ODBC, SSIS, Quest TOAD
  • Expertise in Data Modeling Erwin 4.5/7.3, Physical Modeling, Logical Modeling, ER Diagrams, Dimensional Databases, Oracle 10g/9i, Relational Modeling, MS SQL Server 2000/2005/2008, Sybase 12.x/11.x SQL Navigator, Teradata,  SQL* Loader, and MS Access 2000

Key profiles the test is useful for:

  • Data Stage Developer
  • ETL Developers
  • SSE-ETL Developer

Answer to common queries:

Q. Can candidates be benchmarked based on the internal sample set?

A. Yes, at Mettl, it can be done. Should you need any further information, please write to us, and we will be happy to assist you.

Q. Is it possible to customize the report as per the need?

A. Yes, we can do it. We have already done it in the past for our clients. Should you need any further information, please write to us, and we will be happy to find the best solution for you.

Q. How do I prepare for the ETL test?

A. Following are the topics that one can read up to be able to crack the exam:

  • Data Mining Process
  • Data Reduction
  • Data Cleaning
  • Data Modeling Techniques
  • Data Integration and Transformation 
  • DataStage Tool
  • Database Lifecycle
  • Aggregate Stage
  • Data Modeling
  • Data Staging
  • Data Warehousing

How it works:

step 1
Mettl-PBT-1

Add this test to your tests

step 2
Mettl-PBT-2

Share test link from your tests

step 3
Mettl-PBT-3

Candidate take the tests

step 4
Mettl-PBT-4

You get their tests report


Note You will be charged only at step 3. i.e. only when candidate start the test.


Relevant for Industries

  • IT
  • ITeS

Related Tags

Data Tool