Jesús Vázquez
Spain
Summary
🤩
Rockstar🎓
Top SchoolJesús Vázquez is a Staff Software Engineer with 11 years of experience building and operating cloud-native distributed systems, focused on automation, observability, scalability and reliability. Based in Spain, he is a maintainer and core contributor to Prometheus and an active developer on Grafana Mimir, working on performance-sensitive components like TSDB WAL optimization, out-of-order sample support, and write-path/memcached improvements. He combines backend engineering, system architecture and DevOps sensibilities to improve throughput and maintainability in large-scale monitoring stacks. Notably, his contributions include a package refactor (wal→wlog) and pragmatic cross-project code reuse from Mimir to Prometheus, highlighting a penchant for practical, high-impact changes.
11 years of coding experience
Bachelor of Computer Science, Bachelor of Computer Science at Universidad Complutense de Madrid
Chinese, English, Spanish
Github Skills (21)
timeseries-database10
data-storage10
tsd10
go10
prometheus10
performance-optimization10
metric10
architecture9
observability9
otel9
architectures9
system9
struct8
data-structures8
memcached8
Programming languages (17)
Github contributions (5)
grafana/mimir
Nov 2021 - Jan 2023
Grafana Mimir provides horizontally scalable, highly available, multi-tenant, long-term storage for Prometheus.
Role in this project:
Back-end Developer & DevOps Engineer
Back-end Developer & DevOps EngineerContributions:80 reviews, 25 commits, 39 PRs in 1 year 2 months
Contributions summary:Jesús contributed to the Grafana Mimir project by implementing features and fixing bugs related to the write path and memcached client. They introduced a configuration flag and header-based mechanism to skip label name validation, improving write performance. Additionally, they refactored the memcached client constructor and fixed a bug in the Get() function. The user also made several vendor updates and brought in the latest changes from mimir-prometheus.
tenantobservabilitygrafanaprometheusstorage
prometheus/prometheus
Jun 2022 - Jan 2023
The Prometheus monitoring system and time series database.
Role in this project:Back-end Developer & System Architect
Back-end Developer & System ArchitectContributions:289 reviews, 6 commits, 115 PRs in 6 months
Contributions summary:Jesús contributed to the Prometheus project by optimizing the time spent on idling processes within the TSDB's WAL (Write Ahead Log), significantly improving benchmark deltas. They implemented support for out-of-order samples, borrowing and adapting code from Grafana's Mimir project. The user also refactored and renamed the `wal` package to `wlog`, improving code maintainability. Their work touches upon core data storage and performance aspects of the Prometheus monitoring system.
time-series-databaseprometheus-exporterseries-databasealertingdatabase
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