Javier Ramirez
Employers on the program
- 2023–2025QuestDB9 talks
- 2021Amazon Web Services1 talk
Appearances by year
- FOSDEM
- Berlin Buzzwords
- OSA CON (Open Source Analytics Conference)
- AWS re:Invent
- Beam Summit
- PyCon (national Python conferences)
- STAC Summit
Talks
| Date | Event | Conference | Role | Title | Links |
|---|---|---|---|---|---|
| Jun 15, 2025 | Berlin Buzzwords 2025 | Berlin Buzzwords | talk | Accelerating 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, 2025 | STAC Summit London, Spring 2025 | STAC Summit | speaker | Real-Time Market Data to Parquet: A QuestDB 5-Minute Demo as QuestDB | |
| Feb 1, 2025 | FOSDEM 2025 | FOSDEM | speaker | Accelerating 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 lessIn 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, 2024 | OSA CON 2024 | OSA CON (Open Source Analytics Conference) | speaker | Ingesting 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 lessTeams 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, 2024 | FOSDEM 2024 | FOSDEM | speaker | Ingesting 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 lessTeams 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, 2023 | OSA CON 2023 | OSA CON (Open Source Analytics Conference) | speaker | QuestDB: 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 lessTraditionally, 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, 2023 | Berlin Buzzwords 2023 | Berlin Buzzwords | talk | Ingesting 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, 2023 | Beam Summit 2023 | Beam Summit | speaker | Deduplicating 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 lessTime 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, 2023 | FOSDEM 2023 | FOSDEM | speaker | Ingesting 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 lessWhen 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, 2022 | PyCon Italia 2022 | PyCon (national Python conferences) | talk | Processing and analysing streaming data with Python and Apache FlinkData 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 lessData 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, 2021 | AWS re:Invent 2021 | AWS re:Invent | breakout | Analyze 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 lessTime-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
| Speaker | Shared events | Shared talks | Last together |
|---|---|---|---|
| Peter Zaitsev | 6 | — | 2025 |
| Danica Fine | 3 | — | 2025 |
| Evan Rusackas | 3 | — | 2025 |
| Gabor Szarnyas | 3 | — | 2025 |
| Jarek Potiuk | 3 | — | 2025 |
| Karen (Karrie) Jex | 3 | — | 2025 |
| Mary Grygleski | 3 | — | 2025 |
| Maxime Beauchemin | 3 | — | 2025 |
| Michele Martone | 3 | — | 2025 |
| Ricardo Sueiras | 2 | 1 | 2022 |
| Abhishek Singh | 2 | — | 2025 |
| Alessandro Benedetti | 2 | — | 2025 |
| Anna Ruggero | 2 | — | 2025 |
| Bruce Momjian | 2 | — | 2025 |
| Celeste Horgan | 2 | — | 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.