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@@ -19,10 +19,22 @@
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Argentinian living in The Netherlands <br/>
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<a href="mailto:davidventura27@gmail.com">davidventura27@gmail.com</a> <br/>
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<a href="https://github.com/davidventura">github.com/DavidVentura</a> <br/>
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+ <a href="https://gitlab.com/davidventura">gitlab.com/DavidVentura</a> <br/>
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+ <a href="https://blog.davidventura.com.ar">blog</a> <br/>
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</p>
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</div>
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</header>
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+ <section class="experience-category">
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+ <h2 class="experience-title">
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+ Summary
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+ </h2>
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+ <div class="work-experience">
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+ Problem solver that spent the last 9 years mainly focusing on linux, automation and tooling, but also had <b>problems</b>
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+ push me through full-stack web development, distributed systems, database administration, mobile, networking and embedded systems.
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+ </div>
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+ </section>
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+
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<section class="experience-category">
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<h2 class="experience-title">
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Work Projects
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@@ -34,28 +46,31 @@
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<small class="position">Sysadmin - Tooling developer</small>
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</h3>
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<p>
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- Enforced operational commitments from development teams to bring down application errors to monitorable state.
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+ Responsible for production systems' behavior as well as keeping the design of new systems within our standards.
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<ul>
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<li>
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- Overhaul compliance related backup system (300TB+)
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+ Established operational commitments for development teams to bring down application errors to monitorable state.
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</li>
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<li>
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- Deployment system for production services (11k services, 860 servers)
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+ Mentored colleagues, healping them transition from an old-school sysadmin position to a tooling development position
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</li>
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<li>
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- Linux-on-windows initiative and platform deployment to standardize the production API across the existing services
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+ Overhaul compliance related backup system (300TB+)
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</li>
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<li>
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- Log and event analysis to quickly detect production related incidents
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+ Deployment system for production services (11k services, 860 servers)
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</li>
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<li>
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- Redesigned and implemented market data permissioning system
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+ Linux-on-windows initiative and platform deployment to standardize the production os-level API across the existing services
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</li>
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<li>
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- (Currently) Redesigning server deployment
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+ Analysis of logs and events, to quickly detect production related incidents
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</li>
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<li>
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- Mentored colleagues, healping them transition from an old-school sysadmin position to a tooling development position
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+ Redesigned and fully automated physical server deployment
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+ </li>
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+ <li>
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+ Redesigned and implemented market data permissioning system
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</li>
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</ul>
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</p>
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@@ -67,15 +82,18 @@
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<small class="position">Sysadmin - Tooling - Backend dev - Frontend dev - Embedded - Networking</small>
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</h3>
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<div class="company-project">
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+ <p>
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+ Responsible for interfacing directly with end users and designing the video streaming and e-learning platforms end-to-end, encompassing a very broad set of technologies.
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+ </p>
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<h4>Live-streaming Platform</h4>
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<p>
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- The objective of this project was to create a complete pipeline for live video streaming, all the way from the physical cameras in the classroom to the software used by the alumni. A few interested points covered by the project:
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+ The objective of this project was to create a pipeline for live video streaming, all the way from the physical cameras in the classroom to the software used by the alumni. A few key points covered by the project:
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<ul>
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<li>
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- Embedded linux systems for the video cameras (raspberry pi), audio mixer and slide system
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+ Embedded linux systems for the video cameras (running on on-prem raspberry pi), audio mixer and slide system
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</li>
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<li>
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- Live audio mixing of remote and local speakers
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+ Live audio conferences to allow local and remote speakers to presnet together
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</li>
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<li>
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Time syncing across video sources to prevent frame drift, using PTP
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@@ -94,10 +112,10 @@
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<h4>
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Billing System
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</h4>
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- <p>This project manages most of the finances of the company and some extras:</p>
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+ <p>The scope of this project was to manage most of the company's finances:</p>
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<ul>
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- <li>Billing, receipts (AFIP), shipping labels, e-commerce, stock and supplies</li>
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- <li>Document scanning, printint, security cameras, certificate generator and monthly reports</li>
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+ <li>Billing, invoices (AFIP), shipping labels, e-commerce, local stock and supplier stock</li>
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+ <li>Document scanning and printing</li>
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</ul>
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</div>
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</div>
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@@ -110,7 +128,7 @@
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<div class="company-project">
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<h4>
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Streamall (netflix 'clone')
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- <small class="position">Sysadmin - Backend dev - Frontend dev - Tooling</small>
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+ <small class="position">Sysadmin - Backend dev - Frontend dev - Tooling - Distributed systems</small>
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</h4>
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<p>
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In this project I designed and implemented a system that allowed hundreds of users to access thousands of long-form videos on demand, deployed on a physical cluster in a colocation with high availability and a smart caching system designed to keep 'hot' items in an SSD cache, while a massive store was on tier-3 disks.
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@@ -155,72 +173,70 @@
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</section>
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<section class="experience-category">
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- <h2 class="experience-title">
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- Bonus tracks
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- </h2>
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- <div class="bonus-track">
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+ <h2 class="experience-title">Lab Experience</h2>
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+ <div class="lab-experience">
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<p>
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- Some of my personal projects. You can find more at my <a href="blog.davidventura.com.ar">blog</a>
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+ I maintain a 'lab' to both host my personal projects and learn about new or interesting tech. Some items of note in the lab:
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<ul>
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<li>
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- Reverse engineered the android application to report poorly parked cars provided by the government to automate submissions of people parking in my garage
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+ ARM Cluster: load-balancing LXC cluster on multiple physical ARM single-board-computers of (slightly) different architectures (armv6, AArch64) with live container migration using CRIU
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</li>
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<li>
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- Proposed a system (and proof-of-concept) to the highway authorities to catch speeding cars in freeways/highways using OpenCV to detect the license plates
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+ Jenkins for automated tests and tricky builds (one of the projects is Android-Windows-Linux)
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+ </li>
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+ <li>
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+ My physical router (running Debian) is fully deployed from the lab with ansible.
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+ </li>
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+ <li>
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+ All containers and VMs are fully deployed with ansible.
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</li>
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<li>
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- IoT projects:
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- <ul>
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- <li>Wrote a small IOT framework in MicroPython, which I use for my custom devices</li>
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- <li>Used said framework to control my nightlamp with my kindle, measure ambient humidity/temperature, switch TV input sources, etc.</li>
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- </ul>
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+ Backup system (automated ping for offline backups, daily delta and weekly snapshots uploaded to different zones, via different mechanisms)
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</li>
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</ul>
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- <li>
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- Currently writing a set of tools to handle my 3d-printer in better ways (emitting consistent gcode, cura plugin)
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- </li>
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- <li>
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- Currently writing a video pipeline to detect and flag motion detection with my home security cameras.
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- </li>
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+ </p>
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+ <p>
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+ All of this is monitored with industry-standard tools (telegraf, influx, grafana, email) and also hosts some standard tooling for itself (squid, apt-cacher, git, vpn, proxies, reverse-proxies)
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</p>
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</div>
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</section>
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<section class="experience-category">
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- <h2 class="experience-title">Lab Experience</h2>
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- <div class="lab-experience">
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+ <h2 class="experience-title">
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+ Bonus tracks
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+ </h2>
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+ <div class="bonus-track">
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<p>
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- Along with my normal projects I maintain a 'lab' to both host my projects and learn about new or interesting tech. Some items of note in the lab:
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+ Some of my personal projects. You can find more on my <a href="blog.davidventura.com.ar">blog</a>
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<ul>
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<li>
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- ARM Cluster: load-balancing LXC cluster on multiple physical ARM single-board-computers of (slightly) different architectures (armv6, AArch64) with live container migration using CRIU
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+ Automated book downloading pipeline, fetches, re-formats and pushes books to my kindle.
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</li>
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<li>
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- Jenkins for automated tests and tricky builds (one of the projects is Android-Windows-Linux)
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+ Wrote a small IOT framework in MicroPython, which I use for my custom devices (all based on esp8266)
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+ <ul>
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+ <li>Control my nightlamp with my kindle (shuts it off when I fall asleep)</li>
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+ <li>Measure ambient humidity/temperature (and plot it in grafana)</li>
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+ <li>Poor-man's CEC control for my tv to switch input sources automatically</li>
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+ <li>Control temperature of ambient lighting (warms up over the course of the day)</li>
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+ </ul>
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</li>
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<li>
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- My physical router is fully deployed from the lab with ansible.
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+ Reverse engineered the android application to report poorly parked cars provided by the government to automate submissions of people parking in my garage
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</li>
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<li>
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- All containers and VMs are fully deployed with ansible
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+ Proposed a system (and proof-of-concept) to the highway authorities to catch speeding cars in freeways/highways using OpenCV to detect the license plates
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</li>
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<li>
|
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- Backup system (automated ping for offline backups, daily delta and weekly snapshots uploaded to different zones, via different mechanisms)
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+ Currently writing a set of tools to handle my 3d-printer in better ways (emitting gcode at consistent frequency, cura plugin)
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+ </li>
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+ <li>
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+ Currently writing a video pipeline to detect and flag motion detection with my home security cameras.
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</li>
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</ul>
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</p>
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- <p>
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- All of this is monitored with generic tools (telegraf, influx, grafana, email) and also hosts some generic tooling for itself (squid, apt-cacher, git, backups)
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- </p>
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</div>
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</section>
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- <section class="experience-category">
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- <h2 class="experience-title">Formal Studies</h2>
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- <h4>
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- <small>2012 - 2017 (dropped out)</small>
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- Computer Science at Universidad de Buenos Aires (UBA)
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- </h4>
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- </section>
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</body>
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-</html>
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+</html>
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