Back in November 2014, a local news cast presented an interview with Professor Betha Medeiros who teaches kids with disabilities who attend to philanthropic institution "Escola Especial Educandário São João Batista˜, from Porto Alegre, Brazil.

  Initiative (by Prof. Betha Medeiros) to promote and improve accessibility conditions for those kids and their parents.   My contribution was to develop a mobile application to indicate places with and without accessibility options that were identified originally in an online map. 

The project name:   iGo.vc, selected after a community survey. 

Software developer

Systems Analysis

Industrial Electronics

Specialised in software development of MVP solutions for Mobile, Web and Back-end applications. 
Specialized in development of Software Solutions for Mobile, Desktop and Web Applications. Backend Applications and Services. 
Full Stack with Continuous Integration, Deployment to Cloud servers and PaaS Providers. 
APIs development based on stacks (Node.js, Python) with data on Sql/NoSql scalable stores. 
Mobile Application development. iOS / Android native and hybrid through the Ionic framework. 
Web Scrapping engine based on Python / Flask and REDIS store. 
Cashflow (SaaS) WebApp in PHP/MySql. 
Workflow Online App on dotNet 4.6 – MVC 5/Sql Server.

Founder and, Director

•	Technical Leadership for the APIs squad (API-Pod) at Tribal.credit client fintech company. 
•	The main business is dedicated to provide payment gateway services for transactions and credit card processing to banking institutions across Latam.
•	Upgrade dotNet API. (v1). to a Go based API (v2)
•	Design new unified API  generic for all new clients.. 
•	Improved the Onboarding to the API-Pod.
•	Created a Golang scheduler microservice to allow integration with other microservices.
•	Developed a  Kafka client to  use as a boilerplate for .Net Core services.

Technical Lead

Working across many squads understanding and leveraging technologies employed such as inter process (micro-services) communication, proposing redesign of the architecture  to scale and evolve from monolith,  through REST and event-driven architecture. Avoiding performance bottlenecks and granting throughput.
Code reviews to asses technology usage in standard across different micro-services.

Technologies:  Elixir, erlang, ecto, javascript, sql, postgres, rds, aws, rabbitmq.

Staff Engineer

As the development tech lead of the payments gateway component, which delives money  transfers across different countries and partners. 
Responsible for introducing redesign in the components architecture to improve system throughput, performance and decoupling,   with the development team. Implementing POCs in of those scenarios. 
Responsible for managing the team, their expectations.  Assessing performance and providing feedback.

Technologies: javascript,  nodejs, mariadb, postgres,  typescript,  go, aws,  sqs,  sns,

Tech Lead 

Tecnnical Lead

Architected  and implemented a complete solution for an authentication service to be used by a set of micro services, apis and web/mobile applications using #nodejs, #hapijs server (middleware plus plugin) with independent auth data store in #mongodb.
Redesigned #graphql based server routes for processing data requests using #nodejs, #apollo server,
Redesigned some #firebase centric data structures to #graphql independent server.
Redesigned and implemented #react based web client for admin access to consume and maintain data in #graphql layer.
Implemented an extension for an event scheduling #golang component to rely on #aws #sqs queues. 

Technologies:  typescript,  nodejs,  go,  mongodb (no-sql) ,  postgres (sql) , aws,  sqs, sns, graphql, apollo server, etc.

Backend Developer

Planned and executed development project leading a team of four developers  on a front-end project to present  consumer and sales results collected and agreggated on dashboards with charts. Stack based on Node.js and Vue.js.  Integrated with a backend data backend API  (developed outside this team on a dotNet tech stacks).

LÍder Técnico /  Technical Lead

Development for AGCO Corp. embedded systems for monitoring machines in the field providing live data about the vehicle levels and statuses. (Node.js, Angular, React.js, Express, Mongoose, Harvester.js 
Participated in development of features such as:
 -  Engine throttle to control bottlenecks in the API. 
 - AgCommand 2 UI web based monitoring Panels for tracking equipments signals. 
 - A remote terminal interface to mirror (displays) in the AgCommand 2 exactly what the operator sees on his terminal inside the LCD terminal. 
 - A Telemetry API for monitoring signals and variables received from the vehicle through a Message broker and served to front-end components through a REST. 
 - Reconnection feature for the AMQP queues. 
 - Data ingestion features.

Senior Developer

Developed application software for financial and banking institutions. 
Both for desktop and web, with back end services integration.
.Net framework, C#, Ajax, JavaScript, SQL Server, VB.

Analista Programador / Programmer Analyst

Utility is an award-winning agency that launches digital products that scale. We partner with our clients to design and develop custom mobile applications and connected experiences. From global brands and media properties to innovative startups and funded ventures, we work with clients to bring their big ideas to life and transform their businesses.

Sr. Backend Engineer

Software developer, architect.
Cofounder/Tech Lead   @mmattosltd
. Backend/ tech lead 
Musician

Know about Miguel Miranda de Mattos's work experience, education, and much more. Miguel Miranda de Mattos

Miguel Miranda de Mattos

Software developer, architect. Cofounder/Tech Lead @mmattosltd . Backend/ tech lead Musician