Lukas Mikelionis
Data Engineer
Copenhagen, Capital Region of Denmark
Summary
👤
Senior🎓
Top SchoolLukas Mikelionis is a pragmatic data engineer with nine years of experience building high-throughput batch and real-time pipelines across adtech, privacy-focused services, and consumer e-commerce. He combines strong systems skills in Scala, Java, Rust and Go with cloud-native tooling (Dataflow, Flink, Kafka, BigQuery, ClickHouse) to deliver ETL, reverse-ETL and product-focused data integrations that enable BI, ML and operational use cases. Lukas has a track record of improving platform reliability and developer productivity through infrastructure-as-code, CI/CD automation, and bespoke tooling—from stateful stream processing to generative-AI–assisted product enrichment. He has contributed to both in-house and open-source–style solutions at scale (including custom Kafka integrations and exact-once ingestion) and brings academic rigour from an MSc in Computer Science to practical performance tuning and profiling work. Based in Copenhagen, he enjoys turning complex data problems into maintainable, high-performance software that directly impacts product teams and business outcomes.
9 years of coding experience
8 years of employment as a software developer
High School, High School at Druskininkų Ryto gimnazijaMSc, Computer Science, MSc, Computer Science at Københavns Universitet - University of CopenhagenBSc, Software Engineering, Cum Laude, BSc, Software Engineering, Cum Laude at Vilniaus universitetas / Vilnius University
English, Lithuanian, Danish
Stackoverflow
45reputation
4kreached
1answer
2questions
Github Skills (88)
python10
exporter10
prometheus-exporter10
etl10
automation10
mlops10
orchestration10
data-engineering10
scheduler10
elt10
data-integration10
data-pipelines10
monitor10
data-science10
workflow-engine10
Programming languages (7)
Github contributions (5)
lukas-mi/vertica-query-analyser
Feb 2019 - Feb 2020
SQL analyser for Vertica
Contributions:8 commits, 10 PRs, 13 pushes in 1 year
sqlverticadatabaseanalyser
lukas-mi/sql_exporter-1
Jul 2020 - Jan 2022
Flexible SQL Exporter for Prometheus
Contributions:4 PRs, 4 pushes, 3 branches in 1 year 6 months
exporterprometheus-exportersqlsql-exporterprometheus
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