Data Conference Databasea Query.Farm index
Speakers

Javier Ramirez

Employers on the program

  1. 2023–2025QuestDB9 talks
  2. 2021Amazon Web Services1 talk
Events11
Conferences7
Talks11
Years active2021–2025
Miles between events15,3659 in-person events · 5 countries

Appearances by year

201920202021202220232024202520262027
  • FOSDEM
  • Berlin Buzzwords
  • OSA CON (Open Source Analytics Conference)
  • AWS re:Invent
  • Beam Summit
  • PyCon (national Python conferences)
  • STAC Summit

Talks

DateEventConferenceRoleTitleLinks
Jun 15, 2025Berlin Buzzwords 2025Berlin BuzzwordstalkAccelerating QuestDB: Lessons from a 6x Performance Boost
as QuestDB

In this talk, I share our journey in making QuestDB, an Apache 2.0-licensed open-source time-series database, a significantly faster analytical database.

Video
Apr 29, 2025STAC Summit London, Spring 2025STAC SummitspeakerReal-Time Market Data to Parquet: A QuestDB 5-Minute Demo
as QuestDB
Feb 1, 2025FOSDEM 2025FOSDEMspeakerAccelerating QuestDB: Lessons from a 6x Query Performance Boost
as QuestDB
In this talk, we share our journey in making QuestDB, an Apache 2.0-licensed open-source time-series database, a significantly faster analytical database. Over…Show less

In this talk, we share our journey in making QuestDB, an Apache 2.0-licensed open-source time-series database, a significantly faster analytical database. Over the course of just one year, we achieved query performance gains of up to 6x by implementing specialised data structures, SIMD-based optimisations, scalable aggregation algorithms, and parallel execution pipelines.

SlidesVideo
Nov 19, 2024OSA CON 2024OSA CON (Open Source Analytics Conference)speakerIngesting and analyzing millions of events per second in real-time using open source tools
as QuestDB
Teams of all shapes and sizes benefit from near real-time analytics. In this session, I will present a project template that can serve as the foundation to…Show less

Teams of all shapes and sizes benefit from near real-time analytics. In this session, I will present a project template that can serve as the foundation to build one such high performing system, powered by Apache Kafka, QuestDB, Grafana OSS, and Jupyter Notebook.

Video
Feb 3, 2024FOSDEM 2024FOSDEMspeakerIngesting and analyzing millions of events per second in real-time using open source tools
as QuestDB
Teams of all shapes and sizes benefit from near real-time analytics . In this session, I will present a project template that can serve as the foundation to…Show less

Teams of all shapes and sizes benefit from near real-time analytics . In this session, I will present a project template that can serve as the foundation to build one such high performing system , powered by Apache Kafka , QuestDB , Grafana OSS , and Jupyter Notebook .

SlidesVideo
Dec 12, 2023OSA CON 2023OSA CON (Open Source Analytics Conference)speakerQuestDB: The building blocks of a fast open-source time-series database
as QuestDB
Traditionally, databases have treated timestamps just as another data type. However, when performing real-time analytics, timestamps should be first class…Show less

Traditionally, databases have treated timestamps just as another data type. However, when performing real-time analytics, timestamps should be first class citizens and we need rich time semantics to get the most out of our data.

SlidesVideo
Jun 18, 2023Berlin Buzzwords 2023Berlin BuzzwordstalkIngesting over 4 million rows a second on a single instance
as QuestDB

When we set up to write an open source fast time series database, we realised we would need every trick in the book to make it as performant as possible.

SlidesVideo
Jun 13, 2023Beam Summit 2023Beam SummitspeakerDeduplicating and analysing time-series data with Apache Beam and QuestDB
as QuestDB
Time series data pipelines tend to prioritise speed and freshness over completeness and integrity. In such scenarios, it is very common to ingest duplicate…Show less

Time series data pipelines tend to prioritise speed and freshness over completeness and integrity. In such scenarios, it is very common to ingest duplicate data, which may be fine for many analytical use cases, but is very inconvenient for others. There are many open source databases built...

SlidesVideo
Feb 4, 2023FOSDEM 2023FOSDEMspeakerIngesting over a million rows per second on a single instance.
as QuestDB
When doing real-time analytics, you not only want your database to ingest as quickly as possible, but also to have your data available for (fast) querying as…Show less

When doing real-time analytics, you not only want your database to ingest as quickly as possible, but also to have your data available for (fast) querying as soon as possible. In this session I will show you the technical decisions we made when building QuestDB, an open source time-series database, and how we can achieve over a million row writes per second without blocking or slowing down the…

SlidesVideo
Jun 2, 2022PyCon Italia 2022PyCon (national Python conferences)talkProcessing and analysing streaming data with Python and Apache Flink
Data used to be a batch thing, but more and more we get unbounded streams of data, fast or slow, that we need to process and analyse in near real time. In this…Show less

Data used to be a batch thing, but more and more we get unbounded streams of data, fast or slow, that we need to process and analyse in near real time. In this talk I'll show you how you can use Apache Flink and QuestDB to build reliable streaming data pipelines that can grow as much as you need.

Nov 29, 2021AWS re:Invent 2021AWS re:InventbreakoutAnalyze time-series data in real time and in your data lake
as Amazon Web Services
Time-series data can be found anywhere, from DevOps metrics to gaming applications and IoT devices. Traditional operational or analytical databases do not fit…Show less

Time-series data can be found anywhere, from DevOps metrics to gaming applications and IoT devices. Traditional operational or analytical databases do not fit the time-series model and can be complex to manage and difficult to scale.

SlidesVideo

Frequent co-speakers

SpeakerShared eventsShared talksLast together
Peter Zaitsev6—2025
Danica Fine3—2025
Evan Rusackas3—2025
Gabor Szarnyas3—2025
Jarek Potiuk3—2025
Karen (Karrie) Jex3—2025
Mary Grygleski3—2025
Maxime Beauchemin3—2025
Michele Martone3—2025
Ricardo Sueiras212022
Abhishek Singh2—2025
Alessandro Benedetti2—2025
Anna Ruggero2—2025
Bruce Momjian2—2025
Celeste Horgan2—2025

Speakers with the same name are merged into one entry, so this page may combine more than one person. Affiliations are shown as each conference listed them.