Damian Martinelli | Software Engineer (original) (raw)

Career Profile

👋 Hi, I’m Damu — Software Engineer & Technical Leader.

I build high-traffic web platforms and end-to-end products, with a strong focus on performance, usability, and pragmatic engineering. I’ve been coding since 1990 and built my first website in 1996.

🚀 About me

• Comfortable leading and collaborating with multicultural, remote teams.
• Bias toward backend engineering, but experienced delivering complete web apps (frontend + backend + infra).
• Deep background in database performance and high-volume systems.

🧱 Web3 development

• Building Web3 apps since 2020, focused on EVM-compatible networks.
• Solidity, Hardhat, Foundry, Scaffold-ETH, ethers.js, Viem.

🧰 Languages & technologies

• Ruby (Rails) — my favorite for web development since ~2006.
• Python, JavaScript/TypeScript, plus experience with Pascal, C/C++, Java, PHP.
• Frontend: HTML/CSS, Bootstrap, jQuery, Vue, React.

🗄️ Databases

• Relational: MySQL, MariaDB, PostgreSQL (performance tuning & query optimization).
• NoSQL: Redis, DynamoDB, MongoDB, CouchDB, Neo4j.

🛠️ DevOps / sysadmin

• Mostly Ubuntu/Debian.
• Cloud: AWS (S3, CloudFront, EC2, Route53, RDS, DynamoDB, Lambda, Cognito, among others), plus Heroku, Google Cloud, Azure.

🤖 Teaching & data science

• Teacher at the University of Buenos Aires (Data Science, ML, Big Data, IR, recommender systems, streaming algorithms).
• Enjoy building ML/DS projects in Python; students participate in Kaggle competitions.

Experiences

Teaching data science and applied machine learning, combining theory with hands-on Python practice and real-world datasets.

Responsibilities include lectures, mentoring, assessments, and creating teaching resources.

Topics: Python (Pandas), Machine Learning, Big Data (Apache Spark), Information Retrieval, Data Visualization, Streaming Algorithms, Recommender Systems, Hashing/LSH, Dimensionality Reduction (SVD), Information Theory & Compression, Cryptography.

Mentoring: final IT engineering degree projects.

Mentored final degree projects:

• Asistente Inteligente para Viajes
• Smart wallet
• Property rental system
• Loyalty program
• Decentralized freelance app

Web3 games, product and engineering leadership.

Led token and NFT development, and integrated Web3 backends into mobile game experiences (wallet flows, on-chain assets, and off-chain services/APIs to support gameplay).

Co-founded and led engineering for an Applicant Tracking System (ATS) and recruiting platform for LATAM.

RubyOnRails, MariaDB, Sphinx, Bootstrap, LESS, CoffeScript, jQuery, Vue.js, Cypress, NewRelic, Jupyter, Unicorn, Nginx, S3, SendGrid, Mailgun, Google Analytics, Google TagManager, RSpec, GIT.

Co-founded a real estate marketplace platform for LATAM (acquired by OLX Group).

Search engine for online classifieds (cars, real estate, jobs) across 30 countries, 8 languages, and 100M+ indexed ads.

Led engineering and large-scale search engine marketing campaigns (peaking at ~40M monthly users).

Ruby, Nokogiri, RubyOnRails, Sinatra, Padrino, Bootstrap, JQuery, Redis, Resque, MariaDB, MongoDB, Sphinx, Bash, Varnish, Nginx, Unicorn, NewRelic, Jenkins, WebSockets, Google Analytics, Google TagManager, SEO, GIT.

Startup accelerator and advisory across big data, high-volume systems, recommendation engines, search, and database optimization.

Web development for clients around the globe (Argentina, Mexico, Spain, USA, South Africa, Japan, Canada, among others).

Some used technologies: HTML, CSS, JavaScript, jQuery, XML, PHP, Smarty, Symfony, CakePHP, Propel, MySQL, C++, Java, RubyOnRails, Ruby, Python, Padrino/Sinatra, Redis, Resque, Sphinx, MongoDB, Neo4j, TDD, GIT, Amazon AWS.

PHP development of strategic management web application.

Network and server admin (Windows Server and Debian).