years IT Operations
Systems operations, troubleshooting and enterprise systems thinking.
Professional focus
Oracle DWH Developer.
Reliable data flows.
Clear data.
With more than 15 years of enterprise IT experience, I work as an Oracle DWH Developer. I build SQL-based data processing, data publishing and ETL/ELT-style workflows with a systems-oriented mindset. I turn complex source data into verifiable, reliable and usable information for data publication, reporting and downstream use.
15+
years in IT
Oracle DWH
development
SQL and ETL/ELT
data flows
Documented
projects
Experience
Data-focused growth built on real IT experience.
My enterprise IT background, Oracle DWH development experience and modern data engineering mindset form a connected professional path built on systems thinking, SQL-based data processing and focused hands-on growth.
years Oracle DWH
SQL-based data flows, data publications and reporting data sources.
Modern Data Engineering
PL/SQL, Python, data pipeline thinking and documented hands-on projects.
Professional focus
What I work on
My work focuses on reliable, verifiable and business-usable data flows. I build on Oracle DWH development, SQL-based data processing and the systems mindset gained from IT operations, while extending this foundation toward modern data engineering.
Oracle DWH development
Target structures, reporting data sources, data publications and development work fitted into existing DWH layers.
SQL-based data processing
Complex queries, transformations, source-to-target checks, and handling historical and current-state data.
ETL/ELT-style data flows
Incremental and full reloads, chainable processes, validations and maintainable data processing logic.
Documented portfolio work
GitHub-ready practice materials, SQL exercises, labs and clear technical documentation.
Modern Data Engineering focus
Deepening PL/SQL, Python-based data processing, data pipeline thinking and project-based practical growth.
Systems and security background
Troubleshooting, infrastructure and security-aware thinking built on 13+ years of IT Operations experience.
About me
From systems thinking to trusted data.
My IT operations background taught me to understand systems end to end. As an Oracle DWH developer, I use that mindset when building target structures, SQL transformations, data flows, reporting sources and system-to-system data transfer components.
Oracle DWH
Oracle SQL
PL/SQL
ETL/ELT
Data publishing
Validation
Portfolio
Featured projects
Data Engineering
SQL
RDBMS
Multi-RDBMS Data Extraction Lab
A multi-source extraction lab across Oracle, SQL Server, PostgreSQL, MySQL, IBM Db2, and a manual CSV source, with controlled export logic and detailed test evidence.
Open project →
SQL
RDBMS
Multi-RDBMS Comparison Lab
A practical comparison lab across six RDBMS environments with shared sample data, consistent SQL tasks, and documented syntax differences.
Open project →
Infrastructure
AI
Codex Hyper-V Lab
An isolated Hyper-V-based lab for controlled Codex CLI testing. The repository documents security boundaries, manual approval, independent verification, and the first recorded test run.
Open project →Workflow
My approach
1
Learn
Learning the concepts, tools and operating logic needed for the next practical step.
2
Build
Building practical labs, database environments, data flows and technical solutions.
3
Document
Clear documentation of implementation steps, decisions, tests and results.
4
Share
Publishing working, verified materials and sharing the knowledge gained.
5
Improve
Refinements based on feedback, tests and review checks.
Development focus
Current professional focus
Deepening PL/SQL
Targeted strengthening of my Oracle DWH development experience through server-side logic and data processing components.
Modern data engineering
Python, data pipeline thinking, source-to-target validation and documented hands-on practice materials.
Supporting technical background
Linux, networking, infrastructure, cybersecurity and AI as complementary technical background.
Notes
Notes and learning materials
Contact
You can find my contact details on the Contact page.