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Work Background
DaisTech Ltd.Data Engineer / Architect
Jan. 2024Amsterdam, Netherlands
MetaSenior Data Engineer
Jan. 2022 - Dec. 2023Menlo Park, California, United States* Collaborated with Data Scientists to design and develop multiple dashboards for the Infra department.
* Pro-active identified usable data points in order to facilitate mitigation responsive times for Oncall teams.
* Proposed, designed, developed and implemented an end-to-end solution encompassing data analysis, data transformation, data pipelines, visualizations, system testing, UAT, and presentation to stakeholders.
# Presto SQL, Unidash, Python, Big Data, Hive, Oncall teams, Infrastructure.
DaisTech LLCSenior Data Engineer
Jan. 2019 - Dec. 2023Greater New York City AreaMoved in the US, incorporated as an LLC and worked for several US clients on contracting bases. Boston Consulting Group | Boston, MA | US
Sr Data Engineer (contract, remote)
* Reverse-engineered pipelines to Snowflake.
* Re-implemented as views in Snowflake and automated the orchestration and
feed of solutions’ pipelines.
* Fulfilled the role of a liaison between business units and the tech support during
the migration projects.
* Acted as an architectural and engineering expert during the transition of data systems to Snowflake, managing both the technical and strategic aspects of migration. Randstad Technologies | Atlanta, GA | US
Sr Data Engineer (contractor, remote)
* Designed and created dimensional enterprise data model, built new data pipelines,
performed quality assurance testing, managed code reviews and releases for
billing, staff placements, and customer domains in an Agile/SCRUM multi-disciplinary team responsible for enterprise business intelligence
* Engineered ETL pipelines to SQL and shifted to an ELT tech stack based on an internally developed system (Apache, GCP) WarnerMedia (HBO) | New York, NY | US
Sr Data Engineer (contractor, hybrid)
* Enabled marketing analytics by loading advertising data into Snowflake using data pipelines built with Apache Airflow, Python, and SnowSQL
* Created python-based solution for automated data quality verification and alerting
* Re-engineered existing data warehouse to an unified enterprise model to eliminate redundancy and promote reusability of well-defined conformed dimensions across department-specific data marts. Newsela Inc. New York, NY | US
Sr Data Engineer (contractor, on-site)
* Migrated data warehouse for user activity tracking and product engagement from Redshift to Snowflake loaded by Loome data streams
* Optimized performance SnowSQL scripts resulting in 40% cost reduction in data processing expenses for the company
* Introduced automated data quality testing scheme to track and report on anomalies
DaisData Engineer & BI/DWH Consultant
Jul. 2011 - Jun. 2019Amsterdam Area, NetherlandsWorked for 8 consecutive years on contracting basis for numerous organizations and delivered high-quality service for improving clients’ data structure, information systems and business management. Volkswagen Pon Financial Services, Amersfoort, NL
Sr MS Developer
Design and development of a custom-made sensitive data anonymization tool.
# GDPR, MS-SQL, SSIS, C#, VB.NET NIBC NV, The Hague, NL
Sr MSBI developer, data analyst, DWH modeler;
Participated in 7 Enterprise Data projects in various roles.
# Regulation Reporting projects: Anacredit, DGS, VIA; Cost Allocation Model; Data Virtualization; ING GFRS, Amsterdam, NL
Regulatory Reporting specialist
Redesign and rework of a misperforming reporting system.
# IFRS9, Liquidity Coverage Ratio (LCR), Oracle PL/SQL, DNB, ECB, MiFID II, FINREP, COREP; WSW, Hilversum, NL
Software engineer SQL
Design & development of a new software solution for Real Estate associations' financial & business risk models.
# S&P matrix, T-SQL, SSIS framework, DQM, MDM, QlikView; KASBANK NV, Amsterdam, NL
Sr. BI developer
Implementation of a data warehouse solution.
# Agile/SCRUM, Lead BI, MS-SQL, Kimball, BI framework, SSIS ETL, C#, ISIN, Custodian; Simon Loos, Wognum, NL
Team lead BI
Implementation of a Data Warehouse solution.
# MS-SQL, Kimball, Cost-Effective Planning, Transport, Logistics, SSRS, Modelling, Agile/SCRUM; Telenet NV, Antwerp, BE
Senior Microsoft BI developer
Upgrade of the Network Capacity Data Warehouse.
# MS-SQL2, VB.NET, Data Archiving, HFC Networks, Capacity Planning, Telco; Stater NV, Amersfoort, NL
Senior Software Developer Sybase
SEPA redesign and modification of a Mortgage Maintenance System.
# Sybase, SQL, Uniface, VMS, SEPA, Private Mortgages, Credit Risk, Direct Debit batch, XML; Wolters Kluwer NV, Alphen aan de Rijn, NL
Marketing Intelligence specialist.
# Unica, IBM, Cognos, Oracle, Informatica PowerCenter, Campaign Management
![[interim] Business Intelligence Consultant / Data Engineer](https://d1cg29ukvkl76a.cloudfront.net/media_files/publicmedia/532e214cf448634c00f90d9d6bc6ea2b23dbec7f001ee9f36f4c58982be1ff10/profile_search-74747_experience_logo.jpg){kind=logo}
ING[interim] Business Intelligence Consultant / Data Engineer
Jan. 2011 - Aug. 2012Amsterdam Area, NetherlandsING Domestic Retail (HQ), Amsterdam, NL
Data Warehouse specialist, Project Manager.
Design and development of a Data Warehouse solution for ING Retail SME customers.
Keywords: MS-SQL, Data & Information analysis, SME CRM, Customer segmentation, POC, Data Modeling, CloverETL, MySQL, Pentaho, Talend; WestlandUtrecht Bank, Amsterdam
Data migration and transformation of ING Bank accounts to WestlandUtrecht Bank.
Roles: Data Analyst, Audit and financial data validation & test specialist, SQL Server and SSIS Developer
Keywords: MS-SQL, Data migration, Europort+,ETL ,Syntel, Hash Totals, Conversion, Data Quality; ING Domestic Retail Bank, dept: Customer Intelligence, Amsterdam, NL
Upgrade of the Customer Intelligence platform
Role(s): BI / SQL / CRM specialist / Data Mining & Analytics consultant
Keywords: SAS, PL/SQL, Multi-channel Campaign Management, CRM, Oracle, ING, Tango, Marketing Intelligence;
![[perm] Data Engineer & BI Consultant](https://d1cg29ukvkl76a.cloudfront.net/media_files/publicmedia/22d9ec725bb7684e0b4473305add0f272db0d5ed5d833604e99b8c5ba758c48a/profile_search-74747_experience_logo.jpg){kind=logo}
Ordina[perm] Data Engineer & BI Consultant
Sep. 2008 - Aug. 2011Utrecht Area, NetherlandsData Engineer & Business Intelligence Consultant at the VisionWorks team. Participated in several projects: ING Domestic Retail Bank, dept: Customer Intelligence, Amsterdam (NL)
Upgrade of the Customer Intelligence platform
Role(s): BI / SQL / CRM specialist / Data Mining & Analytics consultant
Keywords: SAS, PL/SQL, Multi-channel Campaign Management, CRM, Oracle, ING, Tango, Marketing Intelligence Rabobank, Utrecht (NL)
Role(s): Marketing software back-end integration at Rabobank CRM
Project: SmartFocus
Keywords: Marketing Campaign Management, CRM, SQL, HP NeoView, SmartFocus; SPIL GAMES, Hilversum (NL)
Role(s): Open source DWH designer and developer
Project: Developing Open Source DWH, Proof-Of-Concept
Keywords: Open Source BI, Pentaho, Games' portals, Google Analytics UWV, Amsterdam (NL)
Role(s): Datawarehouse developer en Test specialist
Project: ETL en reporting of the Polis+ system
Keywords: MSSQL, SSIS, SSRS, Data modelling, PolisPlus, Polisadministratie, Loonheffingsplicht Ordina link: https://www.ordina.nl/nl-nl/diensten-en-oplossingen/business-oplossingen/performance-management-en-bi/
![[perm] MS BI Developer](https://d1cg29ukvkl76a.cloudfront.net/media_files/publicmedia/2385c67917de7a32e14c4a9b77e4b1b7ee15b53d6dbfa57992f7c3da4cc609d3/profile_search-74747_experience_logo.jpg){kind=logo}
BI4U[perm] MS BI Developer
Jul. 2007 - Sep. 2008Amersfoort, NetherlandsData Warehouse Developer of a generic Business Intelligence solution for the healthcare industry in The Netherlands. (bit.ly/bi4u_ariadne) Keywords: SQL Server 2005, SSRS, SSIS, SSAS, SSMS, Zorg, Healthcare, DBC, Intelligence Factory, KAIZEN, Lean Management
![[temp] Product Consultant](https://d1cg29ukvkl76a.cloudfront.net/media_files/publicmedia/72c50e30c00037719451a92096dd2d1009fcf02e0a6124af5f191739cfde26c6/profile_search-74747_experience_logo.jpg){kind=logo}
BWise[temp] Product Consultant
Feb. 2007 - Jul. 2007Eindhoven Area, NetherlandsImplementation of the BWise risk management product suite at various organisations and companies. Keywords: Basel II, SOX, ITIL, Crystal Reports, Operational Risk Management;
![[freelance] SQL programmer](https://d1cg29ukvkl76a.cloudfront.net/media_files/publicmedia/dad494628c6ee6528b328814b92f0212c192a696c2fe2f104522f5631a9e15bc/profile_search-74747_experience_logo.jpg){kind=logo}
ING Nederland[freelance] SQL programmer
Oct. 2006 - Jan. 2007Amsterdam AreaA freelance contract at Corporate Credit Risk Management department of ING Bank Amsterdam as a SQL programmer (Sybase) and a technical analyst. Keywords: PD (Probability of Default), EAD (Exposure at Default), LGD (Loss Given Default), Risk modelling, Sybase SQL, Perl.
![[graduation intern] BI specialist](https://d1cg29ukvkl76a.cloudfront.net/media_files/publicmedia/fe4470493640bba6726ce8e7392d608fc6d96d983fe1a858934da8b836a162ec/profile_search-74747_experience_logo.jpg){kind=logo}
WilroffReitsma[graduation intern] BI specialist
Jan. 2006 - Sep. 2006Halfweg, North Holland, NetherlandsBuilt up a reporting system from scratch.
Keywords: DTS, MSSQL, SSRS, SQL Server 2000, Informatieanalyse, Data analyse, Data marts, Finance, Operations.
![[intern] Research on software integration](https://d1cg29ukvkl76a.cloudfront.net/media_files/publicmedia/3d4c2d9cc81d59cac304a321cb5b85c74818a3463eb3344c98f437227e0590bf/profile_search-74747_experience_logo.jpg){kind=logo}
ABB[intern] Research on software integration
Mar. 2003 - Sep. 2003Etten-Leur, North Brabant, NetherlandsIndividual research on the possible integration between ABB's logistic software product Sattline and Crystal Reports of Seagate Software
Keywords: Uniface, Crystal Reports, Logistics
Daisco-founder / web developer
Nov. 2001 - Jul. 2009Amsterdam Area, NetherlandsIT consultancy, web development (part-time next to studies) for numerous clients: www.shieldmark.nl
www.merkentekoop.nl
www.eudomeinnaamregistraties.nl
www.bootsflowerbulbs.com
www.rijschoolxtreme.nl
www.ramenlappen.nl
www.verheijenenwestra.nl
www.dimensiobv.nl
www.wsfs.nl
www.vladesign.nl
www.ij-hallen.nl
www.vdvgroep.nl
www.soracles.com
www.legaldefense.eu
www.mastersecurity.nl
www.mastergroep.nl note: currently some of the websites are reworked, redirected or offline. Keywords: HTML, C#, SQL, ASP.NET, SEO, GUI, graphical design, logo, dotnet, search engine optimization, adwords, cms, joomla, google ranking;
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