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Work Background
ValtechData Governance and Security Lead / Data Quality Lead
Sep. 2024BulgariaI am dedicated to building and implementing robust data governance frameworks that drive organizational excellence. I focus on ensuring data quality, security, and compliance, and establishing data standards that empower teams and protect critical assets. Key Responsibilities & Achievements: * Data Governance Excellence: Spearheaded the adherence of data management processes to stringent governance policies and global regulations (GDPR, CCPA), fostering trust and operational integrity. * Data Security Protocols: Designed and executed comprehensive security measures to protect sensitive data and manage access control, mitigating risks and enhancing compliance. * Quality Assurance Leadership: Defined, monitored, and enforced data quality standards to guarantee consistency, accuracy, and completeness, elevating data as a reliable strategic asset. * Collaborative Governance: Partnered seamlessly with cross-functional business teams and legal experts to ensure that data handling practices met and exceeded compliance standards, driving organizational cohesion. * Global Standardization: Standardized and documented data architecture policies across regions, ensuring alignment, transparency, and sustainable data practices worldwide.
ValtechData Architect/Engineer
Apr. 2024 - Sep. 2024Bulgaria* Designed and maintained scalable database architectures using Microsoft SQL Server. Develop and optimize object catalogs and manifests to ensure efficient data organization and retrieval. * Implemented and oversaw Azure Synapse solutions, integrating diverse data sources into a cohesive analytics framework to support complex analytical queries and data modeling tasks. * Utilize Azure Data Factory (ADF) to create efficient data pipelines that automate the ingestion, transformation, and provisioning of large datasets. * Develop and maintain CI/CD pipelines for data operations, ensuring seamless deployment and integration across environments. * Build and maintain Continuous Integration and Continuous Deployment (CI/CD) pipelines, facilitating smooth deployments and updates with minimal downtime. * Design and generate insightful reports to support business decisions, utilizing data visualization tools and SQL reporting services. * Create comprehensive documentation for data processes, architecture designs, and workflows, ensuring clarity and accessibility for future reference and compliance needs. Innovate and formulate new working processes and rules to enhance workflow efficiency and data governance across departments.
Bede Gaming LtdData Engineer
Aug. 2021 - Apr. 2024Sofia, Sofia City, Bulgaria* Some knowledge of Delta Lake, Azure Databricks, Python, PySpark, Pycharm, etc.
- Creating ETLs using the Pentaho Data Integration tool and SQL Stored Procedures which include: * staging raw data in near-real-time into Data Vault; * refining the staged data into the Data Warehouse presentation layer - Design the Data Vault and Data Warehouse - Investigate and improve query and ETL performance - Supporting an out-of-the-box data visualization tool allowing non-technical business users to interrogate Bede’s Data Warehouse easily - Performing peer review of other team members’ code - Monitoring and maintaining the data pipeline in pre-production and production environments - Work following scrum and CI/CD principles and methodology and develop automated deployment processes - Support all release-related activities - Correct or improve existing programs to enhance their operating efficiency or adapt to new requirements; - Collect and write documentation for the development of a program; - Identify and notify technical problems, processes, and solutions;
Musala SoftSenior Data Engineer
Sep. 2018 - Aug. 2021Sofia, Bulgaria• Position: Senior Data Engineer (Oracle, Informatica PowerCenter)
o Responsible for all DB development project tasks, OLTP Database design, Developed SQL PL stored procedures, Performance optimization and tuning, error handling, Analyzing Database design and analyzing Database Code to Improve Code Quality, Unit tested mappings: running, debugging, troubleshooting mappings, Provide technical assistance on the design and development of new requirements, Re-design and development of troublesome jobs, Mentoring junior developers; • Position: Database Specialist (Teradata, IBM InfoSphere DataStage)
• Responsibilities: Designing & building the architecture of the project – it helps remove possible flaws by setting a standard and attempting to stick to it, DWH remodeling, Development & Implementation – developing ETL procedures, creating new data marts and new structures, Fundamental changes in DWH system and redesign of existing business processes which will have a company-wide positive effect on data consistency and information quality across all layers, Project Performance/Monitoring & Control – regular reporting of issues, risks, progress, and constant checking of the business case to make sure that the expected benefits will be delivered and are still valid, Writing handbooks, providing instruction and training for users and maintaining the result, Testing – reviewing the project for errors and documenting bugs if any;
Adastra Bulgaria EOODData Engineer
May. 2016 - Aug. 2018Sofia, BulgariaInformatica:
Analyze Database Models and Requirementss;
Design and development of analytic data sets;
Data extract, transform, and load (ETL) from relational databases;
Implementation of Informatica processes to deliver data into Data mart and maintenance and tuning of ETL processes;
Getting involved in requirement gathering, analysis, and design and development process.
Create mappings, sessions & workflows using ETL tool Informatica Power Center to transform data from multiple sources including flat files, Teradata, DB2, Oracle and relational sources;
Represent the ETL group in technical discussions and evaluations;
Root Cause analysis for ETL job failures/Data issues raised by business;
Provide day-to-day support for operational data needs;
Oversees offshore development team to oversee requirements and development efforts; Teradata:
Develop SQL scripts using Teradata utilities such as BTEQ, MLOAD, FASTLOAD, FAST EXPORT, TPT etc. Design and build data structures and processes to populate data warehouse tables using knowledge of relational and dimensional data modeling techniques, Integration with legacy data and applications, Experience in UNIX systems, writing Shell Scripts that control Job Execution;, Develop and test new ETL processes, Code clean-up, optimization, and versioning, Create Stored Procedures and optimization scripts; Tools of the trade:
Informatica PowerCenter tools (workflow manager, workflow monitor, designer, repository manager, admin web);
Programming languages (SQL, ksh);
Data platforms (Oracle, Teradata, DB2);
Teradata;
Unix.
Comet ElectronicsDatabase Administrator / PHP Developer
Nov. 2014 - Apr. 2016Sofia, Sofia City, Bulgaria- Perform software design, development and unit testing - Develop, test, and maintain distributed and scalable web-based applications coded in PHP & MySQL
- Participate in writing and maintaining requirements and specifications documents
- Implement major new features and feature improvements
- Track and eliminate bugs or defects
- Optimize code and queries for better performance
- Assist with integration and usability testing
- Daily contact and communication with the Project Manager to report progress, identify issues, and define next steps *** SQL; MySQL; PHP; JavaScript; HTML; CSS, etc.
Fireworks TornadoMarketing & Sales Manager
Mar. 2013 - Nov. 2014Sofia, BulgariaEverything with marketing and sales of fireworks, pyrotechnic and balloon decorations.
Fireworks TornadoSales manager
Mar. 2013 - Nov. 2014Finding customers, expand markets and special orders. In common of Fireworks and Balloons.
Ivis - Project & DesignOffice / Personal Assistent
Jun. 2011 - Mar. 2013Everything in the office.
Ivis - Project & DesignOffice Administrator
Jun. 2011 - Mar. 2013Administarting of the company's web site incoming and outgoing mail and calls arrange meetings and visits.
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