Efren F.
Los Robles, Venezuela
100%
Job Success
Top Rated Plus
Senior Enginer/Developer
$30.00/hr
I am an Elixir/Golang/Python/Ruby programmer and Linux System Administrator. I had spent 22 years in the corporate world as a developer and linux administrator, working in the office. 8 years ago I jump to working remotely from home as a freelance developer.
I have built apps for my customers ranging from locally in Nueva Esparta, and all over the world. I take pride in my work and the majority of my customers bring me repeat business and referrals.
I feel I have been successful, not just because of my web programming skills, but because I am a reliable and dependable web programmer that can be trusted to follow through with my work.
I enjoy working directly with my clients, rather than having project managers involved. Even though I seldom meet my clients in person (due to geography), I am able to effectively communicate via email and chat to complete the website development project to their specifications.
Work history
Work history
Elixir and Ember.js full stack developer
Mar 13, 2023
-
Mar 11, 2024
No feedback given
Private earnings
gopuff
Jun 4, 2023
-
Jun 20, 2023
"very good developer. very patient."
Private earnings
Actively work to migrate a python/Django app to Elixir/Phoenix with GraphQL with 2 other people
Dec 18, 2018
-
Jun 1, 2023
No feedback given
Private earnings
Go Developer Required
Oct 17, 2022
-
May 14, 2023
Private earnings
Development on real-time communications system. Elixir (or Erlang)/JavaScript/PostgreSQL
Aug 28, 2019
-
Oct 19, 2022
"I had the pleasure of working with Efrén for 3 years, and to directly observe his programming skills at Elixir and Python, as I reviewed most of the code that…
Private earnings
GraphQL API Server Development
Jan 8, 2020
-
Apr 13, 2020
"Efrén did a phenomenal job with our GraphQL API server project. His Go code was implemented to specifications and in an idiomatic, scalable, and maintainable manner – our whole team…
Private earnings
Ruby on Rails SAAS app with existing payment flow looking to post into zoho books. Se habla español.
Aug 24, 2018
-
Sep 25, 2019
No feedback given
Private earnings
mantenimiento plataforma saas
Nov 23, 2018
-
Sep 25, 2019
No feedback given
Private earnings
FULL TIME Ruby on Rails Developer (CENTRAL AND SOUTH AMERICA)
Mar 13, 2019
-
Sep 2, 2019
"We would bring the contractor back again."
Private earnings
Elixir developer for reference implementation of using product APIs (EF)
Mar 7, 2019
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Mar 18, 2019
"Thank you Efren!!"
Private earnings
BACKEND GO
Feb 25, 2025
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Present
Job in progress
Private earnings
Elixir, Phoenix and Live View, with OpenAI Integration
Sep 3, 2024
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Present
Job in progress
Private earnings
Elixir/Phoenix App Prototyping and Deployment on fly.io
Aug 12, 2023
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Present
Job in progress
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Ewallet application support (elixir, postgres)
Aug 5, 2023
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Present
Job in progress
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Go or Rust Developer Needed to Rewrite and Improve Python Script
Jun 3, 2023
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Present
Job in progress
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Senior Elixir/Phoenix Developer Needed to Join Our Backend Team
Mar 17, 2023
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Present
Job in progress
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Elixir developer. Need help updating for a product launch
Oct 14, 2022
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Present
Job in progress
Private earnings
Medications.com - refactoring, etc
Aug 11, 2018
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Present
Job in progress
Private earnings
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Skills
Skills
- Golang
- Ruby
- Elixir
- Ruby on Rails
- Django
- Web Application
- Python
- PostgreSQL
- Docker
- JavaScript
- API Development
- RESTful API
- Linux System Administration
- Phoenix
- Phoenix Web Framework