Martin Spier
Member Of Technical Staff at OpenAI
San Francisco, California, United States
Summary
🤩
Rockstar🎓
Top SchoolMartin Spier is a seasoned engineering leader with 13+ years scaling platform, infrastructure, and performance teams for AI, fintech, and consumer internet at companies including Netflix, Snowflake, PicPay, Parasail, and OpenAI. He combines hands-on distributed-systems and observability expertise with a track record of improving engineering velocity, reliability, and cost efficiency for products serving hundreds of millions of users. At PicPay he led a 200+ engineer organization, cut change lead time and mobile time-to-market dramatically, and delivered $30M+ annualized savings via FinOps and cloud modernization. He is also an active open-source contributor—authoring widely used performance visualization tools like FlameScope and flame-graph plugins that are embedded in major profilers—and has built continuous profiling and on-host monitoring systems. Comfortable setting technical direction and rebuilding operating models, he pairs technical judgment with pragmatic execution to turn performance work into measurable business impact. Based in Los Gatos, he’s equally likely to brief executives on ROI as to dig into flame graphs to root-cause a production issue.
13 years of coding experience
19 years of employment as a software developer
Project Management, Project Management at Pontifícia Universidade Católica do Rio Grande do Sul
English, Portuguese
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (16)
html10
data-visualizations10
uid10
heatmap10
javascript10
data-visualisation10
data-visualization10
dashboard10
d3js10
front-end-development10
ui-design10
angularjs10
react9
frontend9
css9
Programming languages (10)
Github contributions (5)
Netflix/flamescope
Mar 2018 - Apr 2022
FlameScope is a visualization tool for exploring different time ranges as Flame Graphs.
Role in this project:
Front-end Developer
Front-end DeveloperContributions:1 review, 158 commits, 47 PRs in 4 years 1 month
Contributions summary:Martin implemented new features and enhancements to the flame graph visualization tool, focusing on color customization and visual improvements. They worked on refining the x-axis label positioning within the heatmap and introduced a feature for inlined hue. The commits indicate the user's involvement in the core functionality of the web application, especially in the UI.
flamegraphvisualization
spiermar/d3-flame-graph
Oct 2015 - Nov 2021
A D3.js plugin that produces flame graphs from hierarchical data.
Role in this project:Front-end Developer
Front-end DeveloperContributions:4 reviews, 338 commits, 87 PRs in 6 years 2 months
Contributions summary:Martin's commits primarily focus on converting the project into a D3.js plugin, suggesting a specialization in data visualization. They implemented a flame graph component, integrating it with a partitioning layout and color schemes. Further contributions include integrating tooltips using d3-tip, expanding the functionality of the visualization to enable more detailed information on mouse hover. Additional improvements included adjustments to the user interface and frame layout.
d3jsflamegraphhierarchical-data
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