Nuno is available for hire
Hire NunoNuno Bras
Verified Expert in Engineering
Software Developer
Lisbon, Portugal
Toptal member since February 28, 2018
Bio
Nuno is a full-stack software developer and machine learning expert with a degree in physics and a Ph.D. in computer engineering. He has a great deal of startup experience that includes co-founding WiseMetering. In his career, he’s built several products from scratch with companies of all sizes and has been often been called upon to solve specific algorithmic problems. Nuno prides himself on his communication skills and constructive mindset.
Portfolio
Pluck (formerly HighFive Friending)
React Native
Apiax (Swiss fintech startup)
MongoDB, AngularJS
James (formerly Crowd Process)
Redis Queue, Pandas, Scikit-learn, Python
Experience
- Python - 14 years
- SQL - 10 years
- Flask - 5 years
- Django - 5 years
- React - 2 years
- Redux - 2 years
- React Native - 2 years
Availability
Part-time
Preferred Environment
MacOS, Visual Studio Code (VS Code), Git
The most amazing...
...thing I've coded was a new algorithm for the tomographic reconstructions of 3D objects; using only magnetic fields sourced and measured around it.
Work Experience
Mobile Developer
2016 - PRESENT
Pluck (formerly HighFive Friending)
- Developed Pluck's cross-platform mobile application: an event management application to bring together people in meetups.
- Built the Go back-end and several native features like the silent notifications and implemented the Auth0 authentication with third parties.
- Wrote E2E tests based on Detox.
Technologies: React Native
Full-stack Developer
2017 - 2017
Apiax (Swiss fintech startup)
- Created a logging system for configuration changes in the system; those group changes that define a common goal per user.
- Debugged several algorithmic aspects for the front-end application.
Technologies: MongoDB, AngularJS
Data Science Engineer
2017 - 2017
James (formerly Crowd Process)
- Deployed the main proprietary data science API of the company.
- Built, deployed, and managed the first Python library based on the algorithms developed by the data science team (those exposed as an API or consumed by technical data science consultants).
- Bridged the API with the product's speed needs by generating a cache system based on Redis and asynchronous RQ workers—reducing the product waiting time for new calculations.
Technologies: Redis Queue, Pandas, Scikit-learn, Python
Front-end Developer
2016 - 2016
PTMultimedia
- Built an interactive application for school kids to play with virtual instruments.
- Added a karaoke-style component that allows users to mute, add tracks to the music composition, change pitch, and beats per minute (BPM).
- Developed a drum-box style application that allows the user to construct their own musical compositions based on a predefined set of instruments.
Technologies: MobX, React
CEO | Co-founder | Developer
2015 - 2015
2ndHandler
- Developed a platform for secondhand devices that were directly inspected via an app that registers the hardware details of the device; ideal for laptops, servers, and mobiles.
- Built the back-end, native app, and website MVP (which was constructed for product validation).
Technologies: React, React Native, Django, Python
Co-owner | Head of Development
2008 - 2012
LMIT
- Co-bootstrapped a cross-platform app to log, reconstruct, and manipulate data from energy meters (for large companies' infrastructures).
- Improved with a team the system performance by caching pre-calculated periods of time (using Redis and Ruby on Rails) as Elasticsearch and other array databases would later start to do for tens of thousands of data arrays.
- Generated with a partner a definition language for the calculation of consumption expressions based on arrays previously logged in the system.
- Co-created an automation control platform to instantly generate orders and schedules for remote devices installed in client remote infrastructures, based on multi-device aggregators that held the same characteristics.
- Optimized, with a team, the system reliability to deploy the system to distributed multitenant clients like bank agencies, telephone companies, and restaurant chains.
Technologies: Marionette.js, JavaScript, Redis, Ruby on Rails (RoR), Ruby
Ph.D. Candidate
2004 - 2009
Instituto Superior Tecnico
- Developed a Python-based forward solver for a 3D ear field RF electromagnetic mapper that incorporated several performance improvements; it was to be used in a magnetic Induction tomography biomedical problem.
- Devised a nonlinear inversion method for the image reconstruction, based on the Augmented Lagrangian technique, implemented in Python.
- Studied the feasibility of new methods and the application to other electromagnetic inverse problems and its performance compared with other state-of-the art tech.
Technologies: Matplotlib, NumPy, Scikit-learn, Pandas, IPython, MATLAB, Python
CRM/BI Consultant
2000 - 2005
Novabase
- Developed several CRM platforms for several clients in a variety of industries: Saab & Kia (automotive companies), Air Luxor (airline company), Diageo (liquor distributor), Vodafone (telecom), Zurich (insurance company), and more.
Technologies: Siebel
Experience
James Data Science Back-end Architecture
Bridged the API with the product request speed needs by generating a cache system based on Redis and asynchronous RQ workers to reduce the product waiting time for newer calculations.
2ndHandler Product
Within a full startup product validation environment, I developed a platform where secondhand devices are directly inspected via an app that registers the hardware details of the device. This is ideal for laptops, servers, and mobile phones.
Education
2005 - 2009
Ph.D. Degree in Computer Engineering
Instituto Superior Técnico - Lisbon, Portugal
1995 - 2000
Licenciatura (5 Year Bachelor of Science) Degree in Physics Engineering
Instituto Superior Técnico - Lisbon, Portugal
Skills
Libraries/APIs
React, MobX, SQLAlchemy, RQ, Pandas, Node.js, ZeroMQ, Marionette.js, Redis Queue, Scikit-learn, NumPy, Matplotlib
Tools
MATLAB, IPython, Git
Languages
Python, JavaScript, SQL, Ruby
Frameworks
Flask, Django, Redux, React Native, Ruby on Rails (RoR), AngularJS
Paradigms
Agile
Platforms
OS X, Visual Studio Code (VS Code), MacOS, Amazon Web Services (AWS)
Storage
MySQL, Redis, MongoDB, PostgreSQL
Other
Siebel
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