Gustavo Efeiche Email & Phone Number

Barcelona, Ct, Es

Cdmx, São Paulo, Bogotá, Bcn, Oo

Engineering Manager for the Payments Tribe, leading development and human efforts for the Open Payments and Open Finance products across Latam (Brazil, Mexico and Colombia).Currently managing two self-built teams of 10 engineers of all levels (L2-L6, Junior to Staff/Principal) for payments services development using Python/Django, JS/Vue, AWS/Google Cloud, CircleCI and DataDog.Responsible for engineering operations for regulated products (Pix and open Finance in Brazil, IFPE in Mexico), having delivered from the ground up the registration with the Brazilian and Mexican Central Banks, all steps and features necessary for homologation and all production-ready features to operate Pix payments and payment initiation in Brazil, SPEI payments and Direct Debit in Mexico, alongside non-regulated PSE payments and Direct Debit in Colombia.Direct responsible for pentests (external and internal) and payments compliance with ISO27001 and PCI-DSS.Belvo payments architecture is an async, distributed system with over 30 services operating different payments products, processing 1M+ payments/month with high conversion rates.IFPE - MexicoOpen Finance / Pix - BrazilPSE - ColombiaISO 27001PCI-DSShttps://belvo.com

México, Df, Mx

Engineering Manager for the Payments Operations team, mentoring the careers of 5 direct reports in different parts of the world. Team was responsible for creating and maintaining the company's reconciliation processes for Fiat and Crypto currencies.- Guided the constructions and implementation of 40+ reconciliation systems for different currencies that run on a daily schedule and parse millions of cryptocurrency transactions/day, leveraging a declarative system built in-house for spanning instances of reconciliation services according to currency. Reconciliation processes use a highly available and scalable infrastructure written in Java and Go. All systems had a first version running within one quarter.- Actively participated in the company's and team hiring processes.https://bitso.com

Fort Mill, Sc, Us

Engineer and leader of the Customer and Financial Transactions teams at Onze, mentoring the careers of multidisciplinary teams and directing technical and product implementations, from launching the MVP to creating new features in production environments.Using Go as language, Docker and ECS as containerization tools, AWS as cloud provider and MySQL as database engine, alongside New Relic as monitoring tool.- Introduced TDD and automated test practices to the team, helping to increase test coverage from ~7% to ~90% in 6 months.- Reduced infrastructure costs by ~65% by optimizing resources in AWS.- Created an async and decoupled architecture to substitute the proposal creation API monolith, decreasing error rates by ~80% and delay in proposal creation from 1 day to 20 minutes.- Actively participating in the interview process for the company and leader of the Platform/Security guild- Delivered the first MVP for the B2C product for Private Pension Funds automated investments in one quarter, with over 10k pension fund plans created 2 months after launch.- Designed the architecture and infrastructure for distributed handling of Deposits, Withdrawals, Re-investments of over 50 enterprise clients with thousands of customers, with the integration to Brazilian payment methods such as Boleto and TED. - Design and lead the development of the whole Financial Health platform for Onze, together with the product and operations tea, to deliver a customized Financial Health score (similar to a Credit Score) to Onze clients. Released in 2 months.Work focused on technical decisions and product roadmap decisions, and career monitoring and evaluation of team members with semi-annual reviews and execution of 1-on-1s throughout the semesters.https://redventures.comhttps://onze.com.br

Armonk, New York, Ny, Us

Software engineer inside the IBM and Itaú-Unibanco Modernization Project (largest bank in Latin America).- Upgraded the Account Authorization (Credit/Debit internal and external transferences) legacy systems written in COBOL to an event-driven microservices architecture (Java, Kafka Streaming and Cassandra), leveraging Ports and Adapters (Hexagonal) architecture to create four new microservices from scratch. All microservices were deployed to the OpenShift Platform (on-premises) and some to AWS as service replicas.- Increased squad contributions (Pull Request merges to master) from 2 per day to ~50 per day with the use of decoupled microservices.- Lead TDD and BDD best practices inside two squads, automating the process of integrated testing.- Mentored junior, mid and senior engineers through technical growth, creating the "Tech Sessions" to bring technical talks and knowledge to engineering teams. Successfully drive 30+ meetings for different topics, including invitees from areas such as Security, Finance, Operations and Compliance to share the impact of engineering in their teams.- Directly involved in product and strategic decisions as a technical leader and consultant, having presented technical proposals and RFCs for executive and superintendent personel.

Lead engineer and architect, leading a team of three other engineers. Built an escrow payments service composed of to be used inside marketplaces as a protection mechanism for buyers and sellers. The platform uses Python/Django as the main language, was deployed to AWS Computing services with full auto scaling capabilities, protected by CloudFlare, using RDS and S3 services (and other) and has an integration with a third party payment services company (Zoop) to execute the financial transactions.The platform has processed 1m payments successfully.

São Paulo, São Paulo, Br

Created, managed and scaled a set of Python/Django services capable of processing 6 million data points entries per user per day and generating data for custom reports and machine learning pipelines. The product is used to increase productivity in client's backoffice teams by up to 70% with an addition of a software installed in clients workstations to extract daily employees activities, written in C++. Services are deployed to AWS computing services (EC2 and ECS) using AWS RDS for MySQL as database provider and AWS Batch and Step Functions for day-to-day batch operations.https://fhinck.com/

São Paulo, Sp, Br

Student tutor in Software Architecture

São Paulo, Sp, Br

Student tutor in Data Science

Bachelor Of Science - Bs, Computer Engineering

Minor, Data Science

Minor, Solutions Architecture