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Freddy – Python, Django, Flask, experts in Lemon.io

Freddy

From Dominican Republic (GMT-4)

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Back-end Web DeveloperMiddle-to-senior
Front-end Web DeveloperMiddle
Hire developer
10 years of commercial experience
Administration
Banking
Business intelligence
Cybersecurity
Food production
Logistics
Retail
Sales
AI software
Dev tools
ERP
Mobile apps
Platforms
SaaS
Lemon.io stats

Freddy – Python, Django, Flask

Meet Fredy - an engineer with over 8 years of commercial experience across various technologies but with a primary focus on Python and React.js. His background includes working with AI software, SaaS and retail platforms among others. His diligence and desire to produce a clean code and an efficient solution are seamlessly blended with his outgoing and positive personality: a great blend for your project! No time to waste - Freddy is THE engineer you have been looking for!

Main technologies
Python
7 years
Django
5 years
Flask
4 years
Unit testing
3 years
React
3 years
Typescript
2 years
React Native
2 years
Additional skills
Docker
REST API
TDD
Integration testing
Git
Node.js
Linux
Redux
C#
C++
SQLAlchemy
GraphQL
SOLID
RegExp
Svelte.js
GitHub Actions
Jira
FastAPI
JavaScript
Xcode
Android Studio
Perl
Pandas
Selenium WebDriver
MySQL
AWS
JSON API
JWT
Microsoft SQL Server
.NET Core
Vanilla JS
MongoDB
PostgreSQL
GCP
Kubernetes
HTML
Bootstrap
CSS
Ready to start
ASAP
Direct hire
Potentially possible

Experience Highlights

Software Engineer
Oct 2022 - Ongoing1 year 8 months
Project Overview

The project consists on creating and maintaining ML models for the prediction of some market products. This predictions are made running python models in Kubeflow pipelines. Around this project, several other projects are created to support the main one.

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Responsibilities:
  • Created GCP CFs to automate alerts when PowerBI reports are refreshed
  • Implemented custom notifications for Kubeflow pipelines.
  • Kept application safe by writing integration and unit tests with pytest
  • Maintained Kubeflow cluster
  • Maintained Jenkins job
Project Tech stack:
Kubernetes
GCP
Cloud Computing
Python
Snowflake
Docker
GCP Compute Engine
Jira
pytest
GitHub Actions
Senior Full-Stack Web Developer
Sep 2021 - Dec 20221 year 3 months
Project Overview

Solve is a market data platform for buy-side traders and managers. They offer Desktop and Web solutions for fixed Income’s market-leading price transparency.

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Responsibilities:
  • Improved project maintainability by refactoring significant, expensive controllers into light performant controllers, using SOLID principles and non-blocking code;
  • Started and encouraged the creation of tests for the Web Solution, both back-end and front-end;
  • Migrated tons of Vanilla.js code into TypeScript and React.js components;
  • Used RegExp for parsing complex email messages;
  • Covered the projects with Jest tests.
Project Tech stack:
C#
Microsoft SQL Server
.NET Core
Redux
Vanilla JS
Unit testing
Python
Pandas
RegExp
Jira
Typescript
React
.NET
Senior Back-End Web Developer
Sep 2021 - Oct 20221 year 1 month
Project Overview

This project under NDA aims to simplify food & grocery operations all on one platform.

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Responsibilities:
  • Integrated multiple types of Web API into our system, like REST APIs, SOAP, and browser actions;
  • Created CLI utilities that expose APIs, allowing to generate the automated system scripts;
  • Designed and coded reusable classes, decreasing the number of duplicated lines in the current codebase by about 30%;
  • Created GitHub Actions that build, test, and ensure high-quality code following PEP conventions;
  • Enhanced the codebase from scripting/functional code to a fully object-oriented approach;
  • Migrated tons of Perl code into Python3.
Project Tech stack:
Python
Perl
Pandas
Linux
Selenium WebDriver
MySQL
SQLAlchemy
Docker
GitHub Actions
Unit testing
Git
Jira
AWS
Lead Full-Stack Web Developer
Jan 2022 - Oct 20229 months
Project Overview

This project consolidates user administration tasks and runners for system utility scripts. Due to the high number of features and customizations required, and the need for keeping the front end aside, the project can be treated as an enhanced Django Admin.

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Responsibilities:
  • Сreated fully customized Django App with WT Token generation, custom User Model, authentication, and custom QuerySets managers;
  • Implemented dynamic database connection using custom DB routers;
  • Created Front-End project using best practices;
  • Wrote high-quality code with 80% of unit testing coverage;
  • Created GitHub Actions to automatically check, test and deploy the application into AWS EC2.
Project Tech stack:
Django
Python
REST API
JSON API
Redux
MySQL
Docker
Git
GitHub Actions
AWS
Jira
JWT
React
Typescript
Middle Mobile Developer
Sep 2020 - Aug 202111 months
Project Overview

The application allows OneDataSource customers to visualize reports and dashboards, schedule reports executions, and export reports in different formats.

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Responsibilities:
  • Designed, coded, and published the app to both Play Store and App Store;
  • Created Github actions that check, test, and deploy the application to both Google Play Console and Apple Developer Site;
  • Covered the app with tests using Jest and React Native Testing Framework.
Project Tech stack:
React Native
Redux
GitHub Actions
Android Studio
Xcode
REST API
Typescript
Jest
System Auditor / Full Stack Engineer
Dec 2015 - Jun 20204 years 5 months
Project Overview

BanReservas is the one of the biggest bank in D.R. The system auditor position requires analyzing the bank's systems and applications identifying vulnerabilities and risks, and then reporting the findings. Several projects were developed for the bank, including:

  • PICA: A system that calculates the specific and general risk for particular processes based on data collected from our audit tests.
  • Hotline: A system that allows the bank's employees to report any suspicious activity or behavior.
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Responsibilities:
  • Lead developer for a system that automated audit tests using custom ETLs, optimizing the overall audit time from 1-5 days to a few hours. This new system audited different areas of the bank, including Credit Card transactions, Treasury, HR, Hotline, and others.
  • Contributed to and led the creation and maintenance of a system with distributed OCR processing to enable the digital processing of physical documents used as audit trails.
  • Developed a system that consolidated audit results and generated KPI, risk indicators, charts, and reports available to all bank departments.
Project Tech stack:
Python
Flask
Django
Django REST
PostgreSQL
Microsoft SQL Server
API
Jenkins
Docker
Docker Compose
Git
GitHub
GitHub Actions
Node.js
React
SQL
MariaDB
Software Developer
Sep 2014 - Dec 20151 year 3 months
Project Overview

The project consisted on developing different tools and small web applications to optimize the work of the different departments (sales and logistic mostly) of the company. The company used Dynamic AX ERP (Axapta) and SQL Server as database.

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Responsibilities:
  • Developed a backoffice that integrated several processes of the company (customer fidelity points, products discounts, performance reports, etc).
  • Created a monolithic web application to manage the inventory process.
  • Optimized SQL queries.
Project Tech stack:
.NET
ASP.NET MVC
Angular JS
Git
GitHub
DigitalOcean
C#

Education

2020
Software Engineering
Bachelor's degree

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