Studied
Database Sharding & Replication Topologies
Academic focus on horizontal partitioning strategies (hash-based, range-based), resolving hotspots, data redistribution, and maintaining consistency across asynchronous read replicas.
Hello,
I'm Mirosław Bober,
an aspiring
Database Administrator.
Ensuring database reliability, security, and performance.
--Database Administrator ProfileCREATETABLEdatabase_administrator(nameVARCHAR(50)='Mirosław Bober',titleVARCHAR(100)='Junior Database Administrator',skillsTEXT[]=ARRAY[
'MongoDB','Cassandra','SQL',
'Python','Docker','Linux'
],configures_replicationBOOLEAN=TRUE,performs_backup_recoveryBOOLEAN=TRUE,manages_access_controlBOOLEAN=TRUE);--Only hire if conditions metSELECT*FROMdatabase_administratorWHEREconfigures_replication = TRUE AND
manages_access_control = TRUE AND
'MongoDB' IN skills AND
CARDINALITY(skills) >= 5;ABOUT ME
Who I am?
I'm a Computer Science graduate, and databases are the part of the field I kept coming back to. Most of my relational experience is in SQL and MS SQL Server, built up over several semesters of coursework. On the NoSQL side, I spent a good chunk of my studies on MongoDB and Apache Cassandra, building multi-node clusters in Docker and testing how they behave under load. I'm comfortable working on Linux, and I take access control and data protection seriously, GDPR included. Right now I'm after a Junior Database Administrator role where I can grow into running production database systems.
Academic Foundations
Studied
NoSQL Data Modeling & Storage Engines
Theoretical knowledge of how data is physically stored on disk (B-Trees vs LSM-Trees), query planning, and optimizing schema design for read-heavy vs write-heavy distributed workloads.
Studied
Backup, Recovery & High Availability
Academic and practical understanding of replication and failover mechanisms — keeping data durable and services available through node failures, explored hands-on while building multi-node MongoDB and Cassandra clusters.
Skills
MongoDB
MySQL
Apache Cassandra
MS SQL Server
SQL
Python
Pandas
Numpy
Docker
linux
Git
SQL Server Management Studio (SSMS)
Windows Server
Access (database)
Excel
Jira
Visual Studio
Visual Studio Code
ProjectsView All Projects
Education
2023 - 2026
Bachelor Degree in Computer Science
Specialization: Databases and Data Engineering
University of Economics in Katowice, Poland
2019 - 2023
IT & Computer Science Technical School
National Professional Qualification: IT Technician (EQF Level 5)
Professional Interests
Business Intelligence
Strategic use of data for decision-making.
Big Data Infrastructure
Designing distributed systems that store and process data at scale.
Data Engineering
Building reliable, scalable pipelines for data in motion and at rest.
Cloud & DevOps
Deploying and automating infrastructure at scale.
DB Performance & Tuning
Squeezing maximum throughput out of databases under load.
Data Security & Compliance
Protecting data and keeping access controlled and accountable.