Alecs Popa

Software developer in Ruby on Rails

I like working with Ruby on Rails, I love the Ruby syntax and how clean and easy to use is the language. In the future, I'd like the opportunity to work with Elixir and the Phoenix framework and dive a bit more in React.

+49 151 262 98754

Lippstadt, Germany


Work Experience

Ruby on Rails Developer


01/2021 - present (remote)

Working in the transactions team handling hirings, payments, and contracts.


  • Syncronising data across multiple services.
  • Working on automatizing existing processes to support our team.
  • Adapting the existing functionality and implementing new features for every country where JT operates in.
  • Participate in the team support rota once every 2 months.

Work Experience

Ruby on Rails Developer

Laboratoarele Bioclinica

07/2018 - 12/2020 (2 years) (remote)

Building the next gen management platform that is used in the laboratory to track patients, medical analisys, inventory, and equipments.


  • Designing the architecture of the API to work on a local DB server and syncronize the data with a central DB server.
  • Implementing the API for the laboratory management tool.
  • Optimising response times and memory usage.
  • Provide detailed reports in multiple formats (PDF, XLSX, CSV).

Ruby on Rails Developer


07/2013 - 07/2018 (5 years) Timisoara, Romania

Working in medium sized teams on backend services written in Ruby.


  • Improving and scaling the API for an e-learning platform.
  • Building APIs to be used by mobile apps as well as web apps.

Ruby on Rails Developer / Machine Learning Engineer

The Arc

03/2017 - 03/2018 (1 year) (remote)

Building a platform for helping people diagnosed with autism, down syndrome, and a range of diagnoses across the spectrum of intellectual and developmental disabilities.


  • Building the MVP of a new product.
  • Creating a recommender model to better match people with disabilities with tools that might help them.
  • Working with Google ML Engine to train and serve Tensorflow models.
  • Working with Amazon Sagemaker to train and serve Tensorflow models.

Ruby on Rails Developer


09/2015 - 12/2016 (1 year) (remote)

Providing risk alerts and pre-travel advisory to big companies in order to help them know where it's save to send employees.


  • Improving and fixing the API.
  • Adding automated tests to the app using RSpec.
  • Working with maps and plotting informations on top of 3rd party layouts.

CTO & Co-Founder


04/2013 - 04/2014 (1 year) Timisoara, Romania

Managing your servers and deploying your application with easy to use templates.


  • In charge of all technical decisions.
  • Developing the platform in Ruby on Rails.
  • HowToWeb Startup Spotlight presentation:


  • Ruby on Rails
  • Ruby
  • PHP
  • Javascript
  • React JS
  • MySql
  • Postgres
  • Machine Learning



Master in Artificial Intelligence and Distributed Computing

West University of Timisoara

10/2015 - 07/2017

Computer Science - Bachelor of Informatics

West University of Timisoara

10/2008 - 07/2011


Achievements & Certificates

Convolutional Neural Networks 02/2018

Structuring Machine Learning Projects 01/2018

Improving Deep Neural Networks: Hyperparameter tuning, Regularization and Optimization 12/2017

Neural Networks and Deep Learning 12/2017

Coursera - Machine Learning 10/2016


Open Source Contributions

Add support for changing comments in MySql for Ruby on Rails 09/2017

  • Implemented the feature, added unit tests for both Postgres and MySql databases and successfully merged the code into Ruby on Rails repo.

Return friendly error messages in Elixir lang 06/2016

  • Successfully fixed an open issue and merged the code into Elixir lang repo.

Docker database for local use

  • Created a Docker environment for easing the work with multiple databases.