Matheus is available for hire
Hire MatheusMatheus Salvia
Verified Expert in Engineering
Data Analytics Developer
Location
St. John's, NL, Canada
Toptal Member Since
June 28, 2019
Matheus has worked for over a decade as a software engineer, specializing in Python and full-stack web development, mobile, back end, data processors, crawlers, and big data. He has led and contributed to teams with a variety of backgrounds and integrates exceedingly well into new environments.
Portfolio
Freedom Robotics Corp.
Python, Linux, REST APIs, AWS Lambda, Robot Operating System (ROS), Automation...
Ehab
Ionic, Angular, Core, Blockchain, Ethereum, Python, HTML, Linux...
Ello Político
Elasticsearch, PostgreSQL, Microsoft SQL Server, C#, Django, Python, HTML...
Experience
Availability
Part-time
Preferred Environment
Git, Linux
The most amazing...
...system I've developed is a data collection, aggregation, parsing, and analytics product which handled 10+ billion requests per day.
Work Experience
Robotics Software Engineer
2020 - PRESENT
Freedom Robotics Corp.
- Designed and developed a platform for robotic automation based on rules and state transitions, fully configurable and programmable, based on a Lisp-like internal programming language, as well as that language's parser and interpreter.
- Created and developed an on-premise service architecture that allowed for the deployment of robotics monitoring and control systems inside large industrial manufacturers.
- Architected an analytics and insights platform for robotics and automations data based on ElasticSearch.
- Restructured a file-like data storage to be a fully distributed, fast, and robust solution based on Apache Cassandra.
- Developed many robotics monitoring systems, including real-time video transmission and remote control of robots;
- Developed many private, as well as public-facing, APIs to manage robotics data.
Technologies: Python, Linux, REST APIs, AWS Lambda, Robot Operating System (ROS), Automation, Robotics, Distributed Databases, Apache Cassandra, Elasticsearch, PostgreSQL, WebRTC, C++, Hardware, API Architecture, Data Analytics, SQL, Amazon Web Services (AWS), Amazon EC2, GitHub, Git, Node.js, Data Engineering, Amazon RDS, Embedded Systems, Signal Analysis, Analog, Analog-to-digital Converters (ADC), FastAPI, APIs, React
Software Engineer and Architect
2018 - 2019
Ehab
- Created a suite of Ethereum smart contracts, including two different interacting tokens, currency oracles, project management, and data transparency.
- Created a responsive web application to allow homeowners, investors, and construction companies to communicate and recruit each other to build sustainable and affordable housing.
- Built a suite of Qadre Core entities and a system to allow for arbitrary data transparency and integration between multiple sources and APIs.
- Developed a responsive web application to track and manage construction industry aspects, such as task management, weather management, supplies delivery, 3D model visualization, and data sharing.
- Led and managed a small development team.
- Planned and architected the long-term software goals of the company along with the CTO and CEO.
Technologies: Ionic, Angular, Core, Blockchain, Ethereum, Python, HTML, Linux, API Architecture, PostgreSQL, Data Analytics, SQL, Team Leadership, Amazon Web Services (AWS), Amazon EC2, GitHub, Git, REST APIs, Amazon RDS, Web3, GraphQL, APIs
Full-stack Engineer | Team Lead
2015 - 2018
Ello Político
- Created a parallel data processing system to integrate data sources of various origins (SQL, CSV, Excel, web scrapers, APIs, and more).
- Led and managed a development team using custom agile techniques.
- Implemented statistical models to predict bill outcomes using Python.
- Planned and architected the long-term software goals of the company along with the CEO.
- Created a custom ETL layer for real-time porting of data from MS SQL Server to PostgreSQL.
- Ported a legacy WinForms platform for reading and predicting government bill outcomes to the web using Django and Vue.js.
Technologies: Elasticsearch, PostgreSQL, Microsoft SQL Server, C#, Django, Python, HTML, Machine Learning, Data Analysis, Web Crawlers, Web Scraping, XML, Git, Linux, API Architecture, Data Analytics, SQL, Team Leadership, Amazon Web Services (AWS), Amazon EC2, GitHub, REST APIs, Data Engineering, Amazon RDS, APIs, Scraping
Full-stack Software Engineer
2014 - 2015
Gymglish
- Supported an expert engine that generated English and French languages.
- Developed and maintained internal websites and analytics.
- Created and supported iOS applications to consume English and French lessons.
- Developed a data model and visualization tool for internal statistics.
- Worked with an international French-speaking team.
Technologies: Swift, Objective-C, JavaScript, Python, HTML, Linux, Mobile, PostgreSQL, SQL, GitHub, Git, APIs
Big Data Developer
2013 - 2014
Simbiose Ventures
- Created and maintained a parallel and distributed data processing system that enabled the acquisition of billions of data points per day.
- Designed and developed a business intelligence system that allowed end-users to explore, filter, and extract insights from their user base.
- Built web interfaces and control panels for data visualization.
- Supported a user interaction collection tool using JavaScript and Java.
- Supported the development of a user data unification algorithm.
- Created a visual query and constraint creation utility for end users using HTML and JavaScript.
- Built an audience partitioning tool that allowed user base segmentation based on queries and constraints.
Technologies: Amazon Web Services (AWS), Cassandra, Elasticsearch, JavaScript, Python, Java, HTML, Hardware, C++, CQL, Git, Machine Learning, Linux, API Architecture, PostgreSQL, Data Analytics, SQL, Team Leadership, Amazon EC2, GitHub, REST APIs, Data Engineering, Amazon RDS, Debian, Debian Linux, APIs, Selenium
Mobile Developer
2011 - 2013
Portal Minha Vida
- Created mobile applications such as "TV Minha Vida," "Dieta e Saúde," "Receitas Light," and others.
- Ported existing web applications to iOS native apps and integrated them with SOAP web services.
- Implemented in-app purchase and dynamic feature unlocking.
- Created a diet-tracking app with support for notifications, reminders, food database integration, and paid plans.
- Optimized media consumption on a video repository app.
Technologies: C++, Objective-C, iOS, Mobile, GitHub, Git, APIs
Experience
Ehab Platform for Sustainable Projects
http://ehab.coThe Ehab platform for sustainable projects is a network of people and smart contracts that allow construction companies, investors, and homeowners to collaborate and build sustainable and affordable housing projects.
Ehab Platform for Construction Companies
http://ehab.coThe Ehab platform for construction companies is a blockchain-backed suite of tools for managing construction projects, including supply tracking, task managing, weather integration with IoT devices, 3D visualization, interaction with BIM projects, and data sharing tools between parties and other software.
Monnos
Monnos is a Brazilian fintech aiming to decentralize and facilitate banking operations between parties of multiple countries leveraging blockchain, as well as enabling users to seamlessly buy and sell crypto coins.
DGVM Creation Kit
https://github.com/matheus2740/alpha_empire/tree/master/dgvmDGVM is an experimental, proof-of-concept virtual machine creation kit aimed at decentralized data models and transactional instructions between peers. It leverages advanced metaprogramming techniques.
Monitor Ello Político
http://ellopolitico.com.br/Monitor Ello Político is a tool that allows users to closely follow pending government bills and legislation and provide an array of visualizations and approval predictions backed by statistical models.
Gymglish
https://www.gymglish.comGymglish is an online English learning platform that builds lessons and tests customized to the users' abilities and struggles.
Simbiose DMP
Simbiose Data Management Platform is a suite of tools for collecting, aggregating, parsing, and segmenting users and user data. The platform includes business intelligence tools, analytics, and an overall capacity to handle very large amounts of requests.
Skills
Languages
Python, C#, JavaScript, C++, HTML, TypeScript, Bash, Solidity, Objective-C, GraphQL, SQL, C, Markdown, Swift, Java, XML
Frameworks
Django, Django REST Framework, Flask, Angular, Ionic 4, Ionic, Unreal Engine 4, Electron, JSON Web Tokens (JWT), Selenium
Libraries/APIs
Django ORM, REST APIs, Pandas, Requests, Sockets, jQuery, Social APIs, WebRTC, Node.js, React
Tools
PyCharm, Angular CLI, Git, GitHub, Amazon Simple Queue Service (SQS), JetBrains, Boto 3, Sublime Text 3, GitLab
Paradigms
Parallel Programming, API Architecture, REST, MVC Design, Agile Software Development, Concurrent Programming, Automation, ETL
Other
API Applications, Multithreading, Multiprocessing, APIs, Architecture, Amazon Route 53, Data Analytics, Hardware, Web Scraping, Data Engineering, Amazon RDS, Scraping, Serverless, Core, Qadre, Team Leadership, Apache Cassandra, Robot Operating System (ROS), Robotics, Applied Mathematics, Browser Plugins, Data Processing, Machine Learning, Data Analysis, Web Crawlers, Embedded Systems, Signal Analysis, Analog, Analog-to-digital Converters (ADC), Web3, FastAPI
Platforms
Amazon Web Services (AWS), AWS Lambda, Amazon EC2, Linux, Blockchain, Mobile, MacOS, iOS, Godot, Visual Studio 2016, Ethereum, Windows, Debian, Debian Linux
Storage
Elasticsearch, Amazon S3 (AWS S3), PostgreSQL, NoSQL, Microsoft SQL Server, Cassandra, PostGIS, SQL Server 2012, MySQL, SQLite, Distributed Databases, CQL
Industry Expertise
Project Management
Education
2012 - 2014
Bachelor's Degree in Applied and Computational Mathematics
University of São Paulo - São Paulo, Brazil
Certifications
JULY 2013 - PRESENT
Java SE 7 Developer
Oracle
Collaboration That Works
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