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

Senior Ruby on Rails Developer


06/2022 - present (remote)

Working in the payments and claims team.


  • Implementing GoCardless SEPA and BACS payments.
  • Refactoring the claims platform.
  • Importing customer data from other insurance providers.

Work Experience

Senior Ruby on Rails Developer


01/2021 - 06/2022 (1.5 years) (remote)

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


  • Synchronising data across multiple services.
  • Working on automatising 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

Senior Ruby on Rails Developer

Laboratoarele Bioclinica

07/2018 - 12/2020 (2 years) Timisoara, Romania

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 synchronise 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.

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:


  • English
  • German (B1)


  • 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.