eduardo@eduardomontilva.com

Author: Software Engineer

Date: July 2024 – Present · Remote

• +Build and maintain services across a large Java and Kotlin monorepo covering analytics, data collection, ranking, outlier detection, search, payments and alerting.
• +Took an AI image and thumbnail generation service from an empty repository to production, including model integration, the async job queue, storage and the public API.
• +Design event-driven systems on top of RabbitMQ, backed by PostgreSQL, Cloud Spanner or ClickHouse depending on whether the workload is transactional or analytical.
• +Currently building out backend services on a NestJS and TypeScript stack alongside the JVM platform.
• +Own the embedding pipelines that process millions of records in Python, using GPU batch inference, plus the NLP work behind transcript analysis, topic classification and brand-safety scoring.
• +Built a retrieval-augmented generation service so internal users can query analytics data in plain language.
• +Maintain roughly 70 Helm-deployed services on GKE through Argo CD, along with the infrastructure-as-code, ingress, certificate and DNS automation and OpenTelemetry tracing around them.
• +Write the Kotlin authentication services (token issue and refresh, session handling) that every client surface depends on.
• +Contribute to product frontends in Next.js and a React Native mobile app when a feature needs to be delivered end to end.

Author: Backend Developer & Project Manager

Date: November 2022 – July 2024 · Remote

• +Designed and built a blockchain platform with services in TypeScript, JavaScript, Python and C++, including the security and peer-to-peer communication layers.
• +Wrote the REST APIs and WebSocket protocols (Node.js, Express, PostgreSQL) carrying peer-to-peer traffic and client-to-backend communication.
• +Broke the system into microservices to handle several thousand daily requests from the platform's active users.
• +Planned sprints, task breakdown and workflow for a team of more than 10 developers.
• +Set up the CI/CD pipelines used to deploy blockchain nodes and APIs.

Author: Software Engineer

Date: February 2019 – November 2022 · Remote

• +Delivered backend systems for e-commerce, blockchain and SaaS clients using Python (FastAPI, Flask), Node.js with TypeScript, Java, C++ and some Go.
• +Designed relational and document schemas across PostgreSQL, MySQL and MongoDB.
• +Built the data acquisition pipelines that fed downstream machine learning models.
• +Trained and shipped models in production: CNNs for image classification, RNNs for text generation, regression models, and transformer-based language models.
• +Implemented CI/CD pipelines on AWS for fast deployment.
• +Worked alongside frontend developers in React, writing hooks and components for data fetching and state updates.

Author: Electrical & Power Systems Engineer

Date: February 2019 – July 2022 · Contract

• +Modeled and simulated the SIEPAC Central American transmission network (100+ busbars, 15 substations) in DigSILENT PowerFactory and ETAP, running AC and DC load flow studies.
• +Wrote optimal power flow algorithms in Python and MATLAB, including nonlinear and MINLP formulations with equality and inequality constraints.
• +Developed stability control strategies for synchronous generators, motors, wind turbines, photovoltaic systems and EV charging stations.
• +Designed the low-voltage distribution for a residential building inside the TACOA substation in La Guaira: short-circuit calculations, panel sizing and cable sizing.
• +Built transmission line and tower models in PLS-CADD and PLS-Tower, with protective device coordination.
• +Designed photovoltaic systems and ran Simulink simulations against real-world operating scenarios.