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Martín Guevara Leon

Martín Guevara Leon

Data Engineer

Freelance | México

Technologies

My Portfolio Highlights

My New Track

Associate Data Engineer

My New Course

Database Design

My New Course

Intermediate SQL

My New Track

Associate Data Engineer

Inquisitive analyst, forever asking 'Why?' to uncover the truth in data.

My Work

Take a look at my latest work.

DataLab

Project: Cleaning Bank Marketing Campaign Data

1Upvotes
DataLab

Project: Cleaning Bank Marketing Campaign Data

1Upvotes

My Certifications

These are the industry credentials that I’ve earned.

Other Certificates

Google Cloud Digital Leader Certification

Microsoft Microsoft Certified: Security, Compliance, and Identity Fundamentals

Udacity Data Engineering Nanodegree

DataCamp Course Completion

Take a look at all the courses I’ve completed on DataCamp.

Courses

Introduction to SQL
Intermediate SQL
Joining Data in SQL
Understanding Cloud Computing

My Work Experience

Where I've interned and worked during my career.

Deloitte | Aug 2024 - Jan 2025

Consultant

- Provided support for ETL processes - Monitored daily, monthly, and ad-hoc ETL executions in Autosys and DataStage - Configured access for business users to internal applications - Executed ad-hoc ETL process to update data using Autosys and/or DataStage - Validated data completion in business reports and Power BI Dashboards - Monitored AWS EC2 instances to validate the completion of data extractions from external sources - Created and updated technical documentation - Designed an automated process to archive automatic system emails arriving at the Shared Mailbox
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Kairos DS | Jan 2024 - Aug 2024

ETL Developer

- Created Jobs in DataStage for data extraction from databases (Postgres / SQL Server), applying basic format transformations, and loading into databases (Postgres / SQL Server / Yellow Brick) - Created queries to validate data inserted into databases - Performed testing to validate DataStage Jobs functionality - Migrated Jobs from DataStage version 11.5 to 11.7 - Validated SOAP web service with SoapUI

NTT Data | Jun 2023 - Dec 2023

ETL Developer

- Created DataStage Jobs for extraction from plain text files, transformation, and loading into the Oracle Database - Performed monitoring activities to support the PROD - Imported DataStage packages (.dsx) from DEV to PRE-PROD - Created queries for validation of data inserted into Oracle DB - Configured permissions at the OS level for migration of DataStage to GRID architecture - Generated tests for DataStage Jobs in DEV and PROD in GRID architecture for different business areas - Generated technical documentation for key processes in GRID architecture - Monitored ETL processes with Operations Console/DataStage Director

AztraZeneca | Oct 2022 - Jun 2023

Associate Data Engineer

- Interacted with Business users, and Vendor developers for supporting operations related to Payment processes. - Followed SOP to achieve SOx compliance. - Developed a pipeline in SnapLogic to extract data from Oracle, and load it into an AWS s3 bucket. - Participated in a project to improve the performance of dataflows execution by modifying Unix shell scripts. - Developed a power automate flow to generate/delete outlook events for monitoring assignations.

HCL Tech | Jul 2021 - Oct 2022

ETL Developer

- Built and maintained customized extract, transform, and load (ETL) processes using IBM DataStage. - Created Unix Shell Scripts to perform validations and alerts. - Developed basic queries to facilitate the supply of data to other teams. - Performed manual testing to synchronize with qTest. - Worked with the software engineering team to develop solutions in an Agile environment

Intugo | May 2020 - Jul 2021

Data Analyst

- Created an ETL process for food distribution and consumption data in retail stores (Nielsen, SPINS, KeHE) - Created reports in Excel to present consumption trends of food products - Generated and maintained dashboards in TIBCO Spotfire with information on consumer trends in food products in retail stores - Generated presentations for the analysis of distribution and consumption trends of food products in retail stores

My Education

Take a look at my formal education

Master in Business and Economics StudiesUniversidad De Guadalajara | 2016
Bachelor in Chemical EngineeringUniversidad De Guadalajara | 2012

About Me

Martín Guevara Leon

Data professional with experience in the IT area, working in data processing and analysis. My goal is to become a Data Engineer. I am currently learning the common tools required to get a job as a Data Engineer Jr.

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