Seasoned dev: Unix/C, C++, Python, Perl, JS, Rust, PostgreSQL

Sean Levy aka attila

Celestún, Yucatán, MÉXICO

+52-999-***-**** ć ******@********.*** a codeberg.org/attila a github.com/haqistan Headline Summary

• Unix expert for over 30 years: C, ksh/bash, POSIX, Unix Systems Programming at every level

• Deep in Web-facing tech: PHP, Python/Flask/FastAPI, Perl/Mojolicious, JavaScript in all its manifestations

• Bilingual since birth in Spanish and English, living in Mexico exclusively for the last 20 years

• Deep in relational databases, specifically PostgreSQL, including PL/pgSQL, extensions written in C and other tricks of the trade

• Decades of experience in various stacks with multi-threaded programming, asynchronous programming paradigms, building API-based systems and large applications/library suites

• Working knowledge of Rust (improving all the time), modern JavaScript programming with npm, TypeScript, etc.

• 20 years at Carnegie Mellon University on research projects in engineering design/support, OOP, filesystems/networked storage, databases, graph visualization, expert systems Experience

Co-Founder October 2017 - March 2024

clearops.io New York, NY (Remote)

• Built internet-scale data collection system focused on privacy and infosec using PostgreSQL, Perl/Mojolicious, Python and Selenium. Collected hundreds of millions of HTTP transactions over hundreds of thousands of domains to analyze privacy footprint, 3rd party exposure for compliance with GDPR, CCPA, etc.

• Used PL/pgSQL to implement data analysis engine inside the database

• Full web interface with completion-based UX to visualize and search domain privacy/infosec reports derived from the raw data

• Implemented JWT-based authentication system that integrated seamlessly with AWS IAM Part-time contractor November 2015 - 2017

Manicube.com New York, Connecticut (Remote)

• Managed cloud infrastructure and DevOps pipeline for a small startup using both AWS Web Console and open-source command-line tools

• Aided in debugging, performance analysis and implementation of new feaures in Python codebase using Django, SQLAlchemy, JavaScript

• Implemented Nagios across all functional units, with custom probes and the modern Nagios interface Open Source Work September 2014 - 2017

OpenBSD, Tor Projecct Remote

• Ported Tor Browser to OpenBSD

• Wrote driver for the Araneus Alea II USB TRNG, got it accepted into tree as an outside contributor

• Ported tests from NetBSD to OpenBSD for some userspace programs that lacked tests Software Engineer July 2012 - August 2014

kWantera, LLC Pittsburgh, PA, USA (Remote)

• Architected and implemented client-facing, chart-oriented portal, using d3 and nvd3 in the client and Python, Flask, WebSockets, MongoDB and MySQL on the back end

• Designed and implemented back-end data collection system that encompassed the entire North American power grid, on the one hand, and electricity demand data for specific clients using PyMODBUS on the other

• Supported a team of statisticians using Rlang to implement industry-leading energy market arbitrage strategies which the company acted upon

Chief Architect January 2007 - June 2012

Lytix LLC Fully Remote Team: CDMX, Celestún, San Jose, Seattle, Salt Lake City, Helsinki

• Google Maps for Finance: architected and implemented a semantically-aware graph database and analytical back end with P2P-oriented API using JSON over Protocol Buffers. Core written in ANSI C, frontend in JavaScript. Finance/Law ontology developed by experts to analyze and visualize all relationships between public companies

• Delivered high performance graph algorithm implementations that scaled horizontally and vertically, and continuous access to up-to-date data extracted from Bloomberg and Thompson/Reuters in real time (special access licenses) Tech Stack:

ANSI C/POSIX, PostgreSQL, PL/pgSQL, Python, Flask, FastAPI, Perl, Mojolicious/Mojo, NodeJS, TypeScript, Rust, Web Assembly, tauri, Git, GraphQL, Protocol Buffers, JSON-RPC, WebSockets, JWT

Contact this candidate