Antonios Chalkiopoulos
Co-Founder at NOFire AI
Psikhikón, Attiki, Greece
Summary
🤩
Rockstar🎓
Top SchoolAntonios Chalkiopoulos is a deep-tech entrepreneur and engineering leader with 13+ years building production-grade streaming and automation platforms, from founding Lenses.io (150+ customers, acquired 2021) to leading orchestration and automation at Celonis and now co-founding NOFire AI. He combines hands-on distributed-systems expertise (Kafka, Spark, Kubernetes, Linux kernel) with product-first instincts—shipping developer tools like fast-data-dev and a suite of Kafka connectors while improving UX and integrations. A University of Oxford MSc graduate, he bridges research-grade causal and agentic AI with pragmatic operational tooling to prevent production outages rather than firefight them. Active in open source, his contributions span UI tweaks to backend connector hardening in widely used projects such as Scalding and kafka-connect-jdbc, reflecting a rare mix of full-stack craftsmanship and platform-scale thinking.
13 years of coding experience
18 years of employment as a software developer
MSc, Distributed Systems & High Speed Networks, MSc, Distributed Systems & High Speed Networks at University of OxfordBSc, Computer Science, BSc, Computer Science at University of Hull
scala
Github Skills (40)
kafka-connect10
javascript10
docker10
database-api10
testing10
amazon-elasticsearch10
databases10
kafka10
ui-design10
jdbc10
dockers10
java10
scala10
javas10
uid10
Programming languages (13)
Github contributions (5)
lensesio/stream-reactor
Jul 2016 - Sep 2021
A collection of open source Apache 2.0 Kafka Connector maintained by Lenses.io.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:7 releases, 71 commits, 51 PRs in 5 years 3 months
Contributions summary:Antonios primarily focused on fixing bugs and making improvements to various connectors within the Kafka Connect ecosystem. They addressed issues related to Elasticsearch, JMS, and Kudu connectors, including fixing configuration errors and bumping Kudu client versions. Additionally, the user added new features to FTP and HTTP connectors, and addressed issues in bloomberg endpoint and fixing bloomberg endpoint. They also contributed to test improvements and release preparations across multiple connectors.
dcosdata-streamstreamskafka-connectsql-engine
lensesio/kafka-topics-ui
Jul 2016 - Feb 2018
Web Tool for Kafka Topics |
Role in this project:Full-stack Developer
Full-stack DeveloperContributions:2 releases, 107 commits, 18 PRs in 1 year 6 months
Contributions summary:The user, Christina, primarily worked on the frontend and backend components of a web tool for Kafka Topics. Their contributions include modifications to the `kafka-topics-detail.controller.js` and `kafka-topics-factory.js` files, suggesting they were involved in the implementation and maintenance of the UI. The changes incorporated interactions with Kafka REST APIs, data fetching, and display logic, improving the user interface for managing Kafka topics. The user also touched upon the application configuration and overall UI flow.
kafkaweb-tool
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