Jan 2026 – Present · 5 mos · Remote

• Subcontracted to PayPal.

Oct 2023 – Jan 2026 · 2 yrs 3 mos · Remote

• Subcontracted to SiriusXM

Oct 2023 – Jan 2026 · 2 yrs 3 mos · Remote

• Reduced our team’s AWS cloud costs by 80% while preserving system throughput.
• Engineered the foundation for a zero downtime infrastructure migration to a new AWS account, covering ~90% of the required AWS components, enabling the team to continue the transition seamlessly.
• Contributed to the design and implementation of a low-latency, multi-region notification system, including the event ingestion pipeline, shared libraries, end-to-end test scenarios, load tests, autoscaling policies, and observability.
• Owned the end-to-end development of multiple backend services, serverless components, and the AWS infrastructure around these.
• Designed the initial framework to execute end-to-end tests and load tests against our notifications pipeline.
• Restored critical legacy systems (Java) unmaintained for 5+ years, transitioning them from non-compilable code to a deployable state.
• Implemented the CI/CD pipelines (deploy/hotfix/rollback), coordinating them with our e2e-tests suites to ship code faster with confidence and minimal manual steps.
• Created a reusable template to build AWS Lambdas with Scala, accelerating development and improving consistency within our team.
• Subcontracted via Equal Experts.

May 2022 – Sep 2023 · 1 yr 4 mos · Chicago, Illinois, United States · Remote

• Led a team of 8 developers to deliver solutions to our customers (mainly with Scala/Scala.js), find testimonials at https://wiringbits.net
• Participated as a technical advisor for more than 8 customers (mainly with Scala).
• Helped more than 5 customers to fix their technical emergencies, for example, a customer required help to ship a GCP Batch backend for https://github.com/broadinstitute/cromwell (end customer being
• Google). Another customer required a new production environment (the old one was deleted) which was fixed the same day. Another customer required an urgent migration from an expensive service provider to not affect their users.
• Presented technical talks in the main Scala conferences at 2022; FunctionalScala (https://youtu.be/9ePQwMA_g_w) and ScalaCon (https://youtu.be/lrG5sYiJ5-I).
• Designed, developed and led the https://codepreview.io team, an application to provide preview
• environments for web applications that do not use Kubernetes (K8s).

Apr 2020 – May 2022 · 2 yrs 1 mo · Remote

• Atala PRISM Technical Architect (https://atalaprism.io)
• Designed and led most of the foundations for the Atala PRISM project (https://atalaprism.io); A self-sovereign identity (SSI) ecosystem that involves Decentralized Identifiers and Verifiable Credentials.
• Designed the initial second layer protocol for storing decentralized identifiers and digital credentials on top of Bitcoin. Designed and implemented the first PRISM SDK (Scala/Scala.js)..
• Designed and implemented the first PRISM SDK (Scala/Scala.js) + the API Docs website (Paradox/mdoc).
• Designed and implemented the initial architecture for the Credentials Verification project.
• Presented PRISM in various public events (two on-site at Mexico - VivaLaCrypto/TalentLand), other times online, like https://www.youtube.com/watch?v=8AbgzvOeb6wAtala

Jun 2018 – Apr 2020 · 1 yr 10 mos · Remote

Jun 2017 – Jun 2018 · 1 yr · Remote

• Implemented Amazon S3 resiliency across regions for the image storage service, we are not worried anymore if Amazon S3 goes down in a region.
• Implemented TCP and TLS support for the LwM2M (IoT) protocol used on device management (goo.gl/GmsqaU​).
• Contributed to multiple-active regions project where we use multi-master asynchronous database replication across different regions in the world.
• Contributed to the Device Management Approved List, where an organization can whitelist the devices that
• should be able to connect to the cloud (​goo.gl/NQnCDh​), used Conflict-Free Replicated Data Types (CRDT) to get the data replicated across regions.

Sep 2015 – Feb 2017 · 1 yr 5 mos · México

• Solved a bottleneck issue caused by an external provider creating an asynchronous web service that handles the quantity of traffic sent to the provider in order to avoid its frequent crashes due to overloads.
• Performed regular code reviews encouraging secure code and quality.
• Supported Android developers providing domain knowledge, reviewing code and coordinating standups.
• Participated in a penetration test done to Kueski infrastructure, reporting and patching security issues.
• Helped in the architectural design of a secure system similar to what PCI Compliance requires.
• Created modules for compliance related tasks (RESTful Web Services and User Interfaces).
• Created an auditable RESTful Web Service storing enough information to reproduce and understand why a query result was given for each request specific data.
• Designed and implemented an automatic database updater (a heavy task) inside a RESTful Web Service causing a short downtime without the need of database transactions and keeping data consistency.