# Cloud > Selected Engineer ApS work demonstrating Cloud — the achievements that prove it. - [Designed, implemented, and administered 6 ETL/ELT pipelines, utilizing Google BigQuery, MSSQL, PostgreSQL, Shell scripting, PL/pgSQL, and Transact‑SQL, integrating data for efficient Python API processing.](https://data.engineer.company/portfolio/designed-implemented-and-administered-6-etl-elt-pipelines-8/) - [Automated GIS SaaS application deployment, data processing, and reporting system using GitHub Actions CI/CD, Python, Bash, and SQL.](https://data.engineer.company/portfolio/automated-gis-saas-application-deployment-data-processing-and-16/) - [Automated 100 critical data backups using Barman, Google Cloud, Bash, and Python, ensuring data integrity across databases.](https://data.engineer.company/portfolio/automated-100-critical-data-backups-using-barman-google-18/) - [Configured database backup retention as infrastructure‑as‑code, then audited the recovery position and documented the restore procedure — naming the remaining gaps rather than leaving them to be found during an incident.](https://data.engineer.company/portfolio/configured-database-backup-retention-as-infrastructure-as-code-72/)