Alex Volok
Python Data Engineer
Based in Delft, the Netherlands. 20+ years of experience in data engineering, pipelines, warehousing, and related infrastructure.
What I Do
End-to-end data engineering across the modern cloud stack.
Databricks & Python
Building data processing products using Python, PySpark, Databricks, Kafka, and surrounding Azure services.
DevOps & Automation
GitHub, Azure DevOps, and Terraform expertise. Data platform automation, continuous delivery, and in-team collaboration.
Observability
Development and maintenance of observability solutions for data platforms and streaming pipelines.
Trusted By
ASML
Senior Data Engineer (Freelance)
Ahold Delhaize
Senior Python Data Engineer (Freelance)
ABN AMRO Bank N.V.
Senior Data Engineer (Freelance)
Rabobank
Azure DevOps / Database Engineer (Freelance)
Founded Alex Volok Consultancy B.V.
Freelance Data Engineering
What colleagues say
Alex is one of the most knowledgeable engineers in any topic — Python, PySpark, ADLS, Azure DevOps, Data Engineering. He always showed ownership and dedication to make the project a success.
Alex has truly very deep and expansive knowledge on data-related topics and cloud infrastructure. He is always prepared to take the time to help his colleagues with anything they might have going on.
Alex is for me the perfect example of a contractor you hire to get a job done well. You give Alex a few words and he directly understands what you need and finds a realistic, well-functioning solution.
Alex is like the fuel for the team — with his power the team runs like a rocket. Always fast on reacting, fast on fixing issues, and patient to help others narrow the knowledge gaps.
Alex is an engineer every company should have in his data & analytics team. Technically he is extremely experienced. Next to that Alex is pro-active, always willing to help others and faster than the light in delivering high quality work. Last but not least, Alex is an amazing enthusiastic and nice guy and we are absolutely going to miss him in our team!
Alexander Volok is one of the most creative, resilient, dedicated, and knowledgeable colleagues/team members I have had. He always works with the 'customer' in mind when thinking of solutions and thinking out of the box is one of his most valuable assets. Alexander is adapting to new technology at a fast pace and not afraid to use this. If you decide to hire him, it will be a certainty of success!
It was a pleasure working with Alex over the last year. His knowledge is very broad, both theoretical and practical. Especially his help on improving Azure DevOps pipelines and defining standards for working with source control was very valuable for our team. Besides technical impressive solutions, he is also very strong in documenting his work.
In this year he helped improve the team on a technical level, with his broad set of skills on Azure DevOps and SQL Server — but also on a maturity level of how to implement those improvements in an Agile manner. The combination of not only delivering value, but also bringing the team as a whole to a higher level, made him an invaluable person.
It was a true pleasure to work with Alex. He is a very skilled and knowledgeable data engineer who always looks ahead on how to improve and innovate. He was part of our migration to Azure team and we really made a lot of progress. It is a shame that another assignment separated our paths, but hopefully he will be back some day.
Alex is one of the smartest and brightest BI/SQL developers I have seen over the period. Within no time, he understood the functional requirements of a project and delivered a pretty generic solution well before time. He is very enthusiastic about the new trends in BI/SQL world and is very good at explaining the importance of them in simple terms.
Alex is very proactive, results-oriented, responsible, inquisitive, dependable and a technically sound engineer, who is always ready to put in all his energy and time in the job in hand.
Recent Articles
- 30 Jul 2023 5 Approaches to ad hoc Dataframes in PySpark
- 12 Jun 2023 Scripting PySpark Dataframes
- 26 May 2023 Delta Properties and Check Constraints at Scale
- 12 May 2023 Towards Databricks Certified Data Engineer Professional
- 26 Apr 2023 Delta-RS and DuckDB — Read and Write Delta Without Spark
- 16 Apr 2023 Databricks Observability: Processing Collected Ganglia Metrics