Jaime Barez

Senior Data Engineer @Minsait

✔️ ITGraduate Student🧑‍🔬 Engineer🧨 ConsultingSystem ArchitectData Engineer🧮 EducationBackend DeveloperDevOpsProject ManagerTech SupportComputer engineerPostGraduate🎓 StudentData AnalystBI Analyst

Jaime Barez is a seasoned professional in the field of data engineering, currently serving as a Senior Data Engineer at Minsait. He boasts extensive experience in data management, including data analysis, database design, and data modeling. His strong technical acumen and leadership skills have been instrumental in driving data-related strategies and initiatives at Minsait. Prior to his current role, Jaime has held several positions in data engineering and IT, honing his skills in data extraction, transformation, and loading (ETL), as well as in using various data management tools. His expertise extends to areas such as Big Data, SQL, and Python among others. Jaime's commitment to excellence and continuous learning has consistently led to his success in the rapidly evolving field of data engineering.

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Work Background

MinsaitSenior Data Engineer

Mar. 2022 - Mar. 2024Remote- Amazon Web Services (AWS). Data engineering for Energy client specialized in renewable energies (solar, wind), gas, trading and commercialization. Glue, Terraform, Pyspark, SQL Server, MongoDB, Snowflake. - Google Cloud Platform (GCP). Data engineering for Telco client. Bigquery, Composer (Airflow), Datafusion, Cloud Storage.

BMAT Music InnovatorsData Engineer

Nov. 2021 - Mar. 2022Python, AWS, Music Data.

Paradigma DigitalData Architect and Developer

Sep. 2019 - Feb. 2021Madrid, Spain- Recommendation and personalisation endpoints for a global client: AWS, Python, API Gateway, Cloudformation, Lambda, S3, Elasticsearch, Networking. AWS Architecting and Development - Microsoft Azure, Spring Framework, Spark.

Ryanair - Europe's Favourite AirlineBig Data Engineer

Feb. 2018 - Sep. 2019MadridBig Data Developer Design, develop, testing. Continuous integration. Scala, Python. Spark, Hadoop, Hive, Couchbase, SQL Amazon Web Services Architecting (AWS): Cloudformation, Codepipeline, EMR, ECS, SQS, Dynamo Interacting with REST APIs Working in a multi-disciplined team.

FintonicBig Data Engineer

Apr. 2017 - Feb. 2018MadridDevelopment on software and information systems for the ingestion, treatment, processing and visualization of data in the Fintech and Insurances Sector. Stack: Cloudera / Hortonworks, Scala, Java, Spark, Hadoop, HDFS, Hive.

Management SolutionsTechnology Consultant

Feb. 2015 - Oct. 2016Las Rozas de Madrid and Boadilla del Monte, Madrid, Spain➜ Data validation project in the Risk Backoffice of an important Spanish financial institution: • Definition, development and execution of data validations on the DataWareHouse and risk DataMarts, in their daily communication with legacy systems. SAS, SQL Proc. ➜ Validation of the Risk Database (BDR) in a financial institution in Germany: • Definition, development and execution of validations on historical BDR data fed from legacy systems of an absorbed bank. • Analysis and generation of results reports with prioritization of incidents. • Monitoring of incident resolution and subsequent verification. ➜ Optimisation of the Capital data quality Dashboard of an important Spanish financial entity: • Analysis of the current structure of the dashboard and development and implementation of improvements both at the level of processing and presentation to the user. ➜ End-to-end validation of the capital process of an important Spanish financial institution: • Exhaustive identification of processes, systems, controls and participants in the loading of the Risk Database (BDR). • Analysis of information, generation of tests and implementation of the same throughout the process. Preparation of a report with the results of the tests. ➜ Creation of a capital calculation simulator using the IFRS9 method for an important Spanish financial institution. • Programming the simulation engine in SAS language. • Optimised download of information from a central server, for the creation of monthly data boards. • Reading assignment and classification rules from an Excel file, easily editable by someone without advanced technical knowledge. • Assistance for its implementation by a team in another geographic entity of the bank.

TelecorSoftware Engineer

Oct. 2014 - Feb. 2015Mirasierra, Madrid, SpainThe last two years of training were carried out at Telecor, and the contract was changed from IECISA. ➜ Telecor Inventory Project: • Programming the optical infrared reader (assembly language). • Reverse engineering of the old desktop application to download the reader inventory and creation of its clone in Java, with communication through the COM port and a large list of subsequent modifications. • Server-side programming: REST and front-end services (symfony2, PHP, Doctrine) and Perl scripts with massive and optimized queries (MySQL). • Handling large amounts of data with set algebra.

IECISA | Informática El Corte InglésComputer Developer - Training Worker

Jul. 2010 - Oct. 2014Mirasierra, Madrid, SpainThe company offered studies, work and salary, laptop and books to study and work during these 4 years. • Developer: Java, PHP, Perl, SQL. Graphical interfaces (Swing, JavaFx). Use of Design Patterns and good programming practices (TDD). • Management of UNIX systems. • Android Project: Creation of animated Graphic Libraries to display pie charts and histograms. • Project at Bankia: Massive treatment of regular expressions and modification of a Java server application to operate on two separate nodes and communicated through message passing. • Social Security Computer Management Project (GISS): Configuration and update of the “CA Introscope” software. Teacher for 2 weeks of the tool to technicians and users of the application.

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