Lead engineer in charge of the Financial Transactions & Bookkeeping platform worldwide.

Designed, re-built and maintained Eventbrite’s in-house bookkeeping distributed transactional architecture to support near real-time and high availability throughput.

Designed and built Eventbrite’s in-house financial transactions corrections subsystem to be resilient and fast, allowing for simpler visualization and traceability of complex historical highly mutable data.

Redesigned multiple financial data pipelines and internal APIs to be flexible enough to meet our multiple stakeholder’s SLAs and reporting needs.

Maintained the financial infrastructure in charge of controlling, reporting and internal/external reconciliation of payments (payins), reversals, payouts, invoices and charges & credits among other financially relevant transactions.

Designed and built dashboards, data visualization tooling, testing architectures, alerting, metrics and logging subsystems for our in-house financial transactions solutions.

Mentored and helped engineers be successful in many different areas of the company.

Unix / Python / Django / Hive / Spark / Presto / MySQL / Kafka / Maxwell / Redis / Memcached / Celery / RabbitMQ / Docker / Datadog / Graphite/Grafana Scrum/Kanban/Agile

Lead engineer in charge of the Payments Processing platform worldwide.

Designed and built Eventbrite's payment instrument vault architecture, which allows storing and operating with any type of payment instrument while being redundant in case of payment vendors not being available or the need to redistribute the load.

Integration and support of old and new payment vendors (Braintree, Cybersource, Auth.net, PayPal, Adyen, Affirm, iDEAL, SOFORT) as well as new payment instruments and payment notifications processing, allowing the company to expand its payment capabilities and lower their fees in current and new markets.

Redesign and implement disputes (retrieval requests, chargebacks and pre-arbitrations) files processing and automation (First Data, AmEx, Omnipay, Braintree).

Lead consultant for several key components and projects like: Full stack payment processing, Cashless wristbands, Facebook/Braintree integration, Facebook/PayPal integration, Giact identity verification and risk profiling.

Worked with and built several in-house technologies like service oriented architecture (SOA), end-to-end / in memory crypto utilities, credit card management, among others.

Unix / Python / Django / MySQL / Kafka / Redis / Docker

Designed and built RESTful web services.

Developed multiple PHP libraries/packages, with the main goal of dynamically producing web content using Google APIs.

Implemented search solutions using Elasticsearch and backed by Python, PyES and SQLAlchemy.

Built payment solutions integrating with PayPal IPN workflows.

Developed and implemented cache solutions (CDN-like, memcached, Varnish) for web app with +3000000 daily visits.

Developed web crawlers used for data recollection using mostly Python.

Implemented background processing and message queuing mechanisms backed up by Redis.

SEO, website positioning, traffic growth, UI and advertising revenue. Building strategy based on data analysis born mostly from statistical approaches.

Database management and administration using SQL in a RDBMS environment.

Rapid web development using OO PHP, CakePHP framework, MySQL/MySQLi driver, JavaScript toolkits (JQquery, Dojo) and multiple layer caching.

Open source (LAMP/LEMP) infrastructure implementation, administration and maintenance.