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mkolarek

Re:Ask HN: Who wants to be hired? (June 2026) on Saturday June 06, 2026 @10:14AM (#48425337)
Location: Berlin, Germany Remote: Yes (EMEA) Willing to relocate: Yes (Europe) Technologies: Python, Scala, SQL, Apache Spark, Apache Kafka, PostgreSQL, MariaDB, MongoDB, Google BigQuery, RDF, SPARQL, Pandas, Django, Flask, AWS, Azure, Terraform, Docker, Kubernetes Résumé/CV: https://markokolarek.com/pdf/Marko_Kolarek_CV.pdf Email: [email protected]

Data engineer with 10+ years of experience in various industries such as e-commerce, construction and property rights protection. Developing and maintaining ETL pipelines for analytics and ML, designing and implementing data platforms.

Re:Ask HN: Who wants to be hired? (February 2026) on Friday February 06, 2026 @10:06AM (#46913705)
Location: Berlin, Germany Remote: Yes/hybrid Willing to relocate: Yes, within EU

Technologies: Python, Scala, SQL, Apache Spark, Apache Kafka, PostgreSQL, MariaDB, MongoDB, Google BigQuery, RDF, SPARQL, Pandas, Django, Flask, AWS, Azure, Terraform, Docker, Kubernetes

Résumé/CV: https://markokolarek.com/pdf/Marko_Kolarek_CV.pdf

Email: [email protected]

Website: https://markokolarek.com/

LinkedIn: https://www.linkedin.com/in/mkolarek

Data engineer with 10 years of experience in various industries such as e-commerce, construction and property rights protection. Developing and maintaining ETL pipelines, designing and implementing data platforms.

Re:Ask HN: Freelancer? Seeking freelancer? (November 2024) on Tuesday November 05, 2024 @04:15PM (#42055232)
SEEKING WORK | Germany | Remote | Data Engineer

Data engineer with 10 years of experience in various industries such as e-commerce, construction and property rights protection. Developing and maintaining ETL pipelines, designing and implementing data platforms.

Tech stack:

Data Engineering: Python, Scala, SQL, Apache Spark, Apache Kafka, PostgreSQL, MariaDB, MongoDB, Cassandra, Google BigQuery, EXASOL, RDF, SPARQL

Cloud: AWS, Azure

Ops: Docker, Kubernetes, Terraform

Email: [email protected] Website: https://markokolarek.com/ LinkedIn: https://www.linkedin.com/in/mkolarek

Re:Ask HN: Freelancer? Seeking freelancer? (September 2024) on Tuesday September 03, 2024 @03:13AM (#41432155)
SEEKING WORK | Germany | Remote | Data Engineer

Data engineer with 10 years of experience in various industries such as e-commerce, construction and law. Developing and maintaining ETL pipelines, designing and implementing data platforms.

Tech stack:

Data Engineering: Python, Scala, SQL, Apache Spark, Apache Kafka, PostgreSQL, MariaDB, MongoDB, Cassandra, Google BigQuery, EXASOL, RDF, SPARQL

Cloud: AWS, Azure

Ops: Docker, Kubernetes, Terraform

Email: [email protected]

Website: https://mkolarek.github.io/

Re:Ask HN: Freelancer? Seeking freelancer? (June 2024) on Saturday June 15, 2024 @04:47AM (#40688420)
SEEKING WORK

Data Engineer and Data Architect

Location: Worldwide

Languages: English (fluent), Croatian (native), German (basic)

Remote: Yes, hybrid possible in Germany

Willing to relocate: No

Technologies: Python (Flask, Django, pandas, scipy, Apache Spark), Scala (Apache Spark), IaaC (Terraform), AWS, MS Azure, DevOps (Jenkins, TravisCI, Gitlab CI/CD, MS Azure DevOps), Knowledge Graphs (RDF, rdf4j), Apache Kafka, OpenCV (C/C++, Python), relational databases (Postgres, MariaDB), noSQL (Cassandra, Mongo), monitoring/alerting (Grafana, Prometheus), platform tooling (Docker, Kubernetes, Helm Charts)

Personal website: https://mkolarek.github.io/

Résumé/CV: https://mkolarek.github.io/pdf/Resume-Marko-Kolarek.pdf

LinkedIn: https://www.linkedin.com/in/mkolarek

Email: [email protected]

Experience: 10 years of experience in data engineering

Looking for: both short- and long-term projects

Hi I'm Marko, a data engineer, data architect and consultant originally from Croatia, based in Berlin, Germany. I specialize in all kinds of data engineering work (ETL pipelines, data modelling, cloud infrastructure, cataloging, monitoring, MLOps, etc.).

Re:Ask HN: Freelancer? Seeking freelancer? (May 2024) on Thursday May 02, 2024 @04:03AM (#40233811)
SEEKING WORK

Data Engineer and Data Architect

Location: Worldwide

Languages: English (fluent), Croatian (native), German (basic)

Remote: Yes, hybrid possible in Germany

Willing to relocate: No

Technologies: Python (Flask, Django, pandas, scipy, Apache Spark), Scala (Apache Spark), IaaC (Terraform), AWS, MS Azure, DevOps (Jenkins, TravisCI, Gitlab CI/CD, MS Azure DevOps), Knowledge Graphs (RDF, rdf4j), Apache Kafka, OpenCV (C/C++, Python), relational databases (Postgres, MariaDB), noSQL (Cassandra, Mongo), monitoring/alerting (Grafana, Prometheus), platform tooling (Docker, Kubernetes, Helm Charts)

Personal website: https://mkolarek.github.io/

Résumé/CV: https://mkolarek.github.io/resources/Resume-Marko-Kolarek.pd...

LinkedIn: https://www.linkedin.com/in/mkolarek

Email: [email protected]

Experience: 10 years of experience in data engineering

Looking for: both short- and long-term projects

Hi I'm Marko, a data engineer, data architect and consultant originally from Croatia, based in Berlin, Germany. I specialise in productionising and automating data projects, ensuring they can scale and reach their full potential.

I provide end-to-end support for all stages of a data product, from data analysis, design, prototyping, productionising, provisioning infra, deployment and operations.