# Infrastructure > Selected Engineer ApS work demonstrating Infrastructure — the achievements that prove it. - [Designed a comprehensive infrastructure framework for DTU impacting 14 departments, featuring flexible modules, unified data pipelines, and structured support strategies for long‑term adoption.](https://data.engineer.company/portfolio/designed-a-comprehensive-infrastructure-framework-for-dtu-impacting-3/) - [Developed and launched the company's first observability dashboard, providing real‑time system performance insights and data visualization on the large office TV.](https://data.engineer.company/portfolio/developed-and-launched-the-company-s-first-observability-9/) - [Designed, deployed, and maintained 10 PostgreSQL and MS SQL servers on Ubuntu Linux VPS, ensuring optimal server performance and reliability.](https://data.engineer.company/portfolio/designed-deployed-and-maintained-10-postgresql-and-ms-13/) - [Enhanced data security by implementing 1,000 RBAC rules for developers, application instances, PostgreSQL, MS SQL, and other Linux servers, preventing unauthorized access; documented with Ansible automation.](https://data.engineer.company/portfolio/enhanced-data-security-by-implementing-1-000-rbac-14/) - [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/) - [Architected, developed, implemented, supported infrastructure, data processing, and the map application for 2 years non‑stop without any weekends, holidays, or vacations, 10–14 hours a day.](https://data.engineer.company/portfolio/architected-developed-implemented-supported-infrastructure-data-processing-and-55/) - [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/) - [Wrote a scope rule into the repository after a restructure carried another company's inventory, firewall allowances and prose into it — and kept the quarantined residue under the secret scanner rather than excluding it.](https://data.engineer.company/portfolio/wrote-a-scope-rule-after-a-credential-leak-124/)