Hi, my name is Øyvind Isene, and I run Enesi Consulting.
I live in Arendal, Norway, and work as an independent consultant specializing in Oracle Database on Linux and other Unix-like platforms. My work spans classical Oracle DBA responsibilities, high-performance SQL and PL/SQL development, and an increasing focus on data-centric development, data science, and integration between systems.
What I do
As an Oracle DBA and database developer, I help organizations design, build, and operate robust database platforms that are secure, performant, and easy to maintain. Typical engagements include:
- Installation, configuration, and lifecycle management of Oracle databases on Linux and in virtualized or containerized environments.
- Architecture, implementation, and optimization of solutions on Oracle Cloud Infrastructure (OCI), including databases, networking, and related services.
- Performance diagnostics and optimization across the stack: from SQL and PL/SQL, via schema and index design, to storage and operating system.
- Database development: schema design, SQL and PL/SQL programming, batch processing, ETL-style workloads, and integration with applications and APIs.
- Exploratory and diagnostic data analysis to understand system behavior, identify trends, and support better technical and business decisions.
- High availability, backup, and recovery strategies to keep critical systems running and data safe.
- Modern features such as JSON, analytics, and automation to get more value from existing Oracle investments.
How I work
Optimization (aka tuning) has been one of my longest-standing interests. Databases often get blamed when systems are slow, but Oracle is very well instrumented and provides rich runtime information about what is actually happening. This makes it possible to pinpoint errors and bottlenecks, whether they originate inside the database or in surrounding application logic, infrastructure, or design. In practice, that often means uncovering issues in application code, data models, or integration patterns and helping teams fix the real root cause instead of just adding more hardware.
I enjoy working closely with developers, operations, and business stakeholders to translate real-world requirements into clear, measurable technical solutions. Engagements can range from short troubleshooting assignments and performance reviews to longer-term architecture, implementation, and mentoring roles.
Community and background
I have been active in the Oracle community for many years and enjoy connecting with other professionals through conferences, user groups, and online channels. Travel is a natural part of my work, and combining assignments with the opportunity to meet new people, cultures, and technical challenges is something I value highly.
In February 2021 I started Enesi as my own company and have since focused on helping customers improve the reliability, performance, and maintainability of their data platforms. For many clients, this means getting the most out of existing systems before investing in new ones.
About the name “Enesi”
Enesi is simply my surname reversed. I also like prime numbers.
If you have a relevant challenge or would like to discuss how your database platform can be improved, feel free to get in touch at oyvind@enesi.no .
Cheers!
