I’m Viktor Maruna, a Data Engineer and Solution Architect (Data & Analytics) at Adastra with over 10 years of experience specializing in enterprise data platforms, cloud architecture and analytics solutions.
In this blog, I share technical insights on data engineering, cloud architecture, and real-world solutions, along with lessons learned from architecting data platforms.
Expertise
A decade of hands-on experience across the full data and cloud stack, with a focus on Microsoft Azure.
- Data Analytics Platforms: Microsoft Fabric, Azure Databricks, Azure Synapse Analytics, Microsoft Foundry
- Cloud Platforms: Azure (IaaS/PaaS, security, networking, governance), AWS
- Cloud Architecture: Solution design, Infrastructure as Code (Terraform), CI/CD, Azure DevOps
- Data Architecture: Data lakes, lakehouses, data warehouses, performance tuning and optimisation
- Data Integration & Engineering: Azure Data Factory, Azure Event Hubs, Kafka, Sqoop, Apache Spark
- Databases & Storage: Microsoft SQL Server, Azure SQL Database, Azure Cosmos DB, Azure Data Lake Storage, PostgreSQL
- Programming & Scripting: SQL, T-SQL, Python, Apache Spark, Bash, PowerShell
- Big Data: Hadoop (Cloudera, Hortonworks), Impala, Hive, HDFS
- DevOps & Version Control: Azure DevOps, GitHub, Git, GitHub Copilot
Professional Certifications
Continuously investing in professional development — currently holding active certifications across Microsoft, Databricks, and AWS.
Databricks
- Academy Accreditation – Databricks Fundamentals Issued Dec 2025
- Academy Accreditation – Generative AI Fundamentals Issued Jul 2023
- Academy Accreditation – Platform Administrator Issued Aug 2023
- Academy Accreditation – Databricks Lakehouse Fundamentals Issued Jan 2025
- Academy Accreditation – Azure Databricks Platform Architect Issued Dec 2023
- Databricks Certified Associate Developer for Apache Spark 3.0 Issued Aug 2023
- Databricks Certified Data Engineer Associate Issued Jan 2025
Microsoft
- Microsoft Certified: Azure Fundamentals Issued Oct 2020
- Microsoft Certified: Azure Data Fundamentals Issued Oct 2020
- Microsoft Certified: Azure AI Fundamentals Issued Nov 2020
- Microsoft Certified: Security, Compliance, and Identity Fundamentals Issued Sep 2021
- Microsoft Certified: Azure Data Engineer Associate Issued Jun 2020
- Microsoft Certified: Azure IoT Developer Specialty Issued Oct 2020 · Expired Oct 2025
- Microsoft Certified: Azure AI Engineer Associate Issued Nov 2020
- Microsoft Certified: Azure Database Administrator Associate Issued Nov 2020
- Microsoft Certified: Azure Administrator Associate Issued Sep 2021
- Microsoft Certified: Fabric Analytics Engineer Associate Issued Mar 2024
- Microsoft Certified: Azure Solutions Architect Expert Issued May 2021
- Microsoft Certified: Fabric Data Engineer Associate Issued Jan 2025
Amazon Web Services (AWS)
- AWS Certified Cloud Practitioner Issued Mar 2021
- AWS Certified Data Analytics – Specialty Issued Nov 2021 · Expired Nov 2024
- AWS Certified Solutions Architect – Associate Issued Mar 2021 · Expired Mar 2024
Speaking
Occasionally speaking at industry events on data engineering and cloud analytics topics.
Microsoft Cloud & AI Day · Bucharest, Romania · Nov 2025
Presented “From Data to Decisions: AI-Powered Analytics in Action” — leveraging AI and cloud analytics to convert data into actionable operational decisions. Hosted by Microsoft (EMEA roadshow).
Microsoft Fabric Workshop · Bratislava, Slovakia · Apr 2024
Delivered “Microsoft Fabric Roadmap, Use Cases and Hands-On Demo” — showcasing real-world Fabric applications and live demos to accelerate data-driven innovation. Co-hosted by Adastra & Microsoft.
Let’s Connect
Feel free to reach out — always happy to connect with fellow data and cloud practitioners.
Connect with me on LinkedIn, GitHub, or follow my technical posts through the RSS feed.