Open to opportunities

Johnny Herrera

@johnnyherrera

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Backend Developer specializing in Python and Django with proven results.

Spain

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What I'm looking for

I'm looking for a role that challenges my technical skills and offers opportunities for growth.

I'm a Telecommunications Engineer and Backend Developer with over 3 years of experience specializing in web development using Python and Django. I have successfully led the refactoring of legacy systems, designed database architectures compatible with Business Intelligence, and implemented scalable and efficient solutions in high-performance environments. My approach is grounded in best practices, clean and maintainable code, achieving tangible results such as productivity and sales increases of up to 500%.

As a proactive, competitive, and results-oriented professional, I thrive on tackling complex technical challenges and continuously optimizing development processes. My recent role as a Senior Python Developer at DecideXi involved leading the refactoring of a legacy system, improving performance and maintainability by over 40%. I also designed an optimized database model for BI, facilitating dynamic analysis and future changes.

Experience

Work history, roles, and key accomplishments

Sr. Python Developer

DecideXi

Jul 2022 - May 2023 (10 months)

Led the refactoring of the legacy system, improving performance and maintainability by over 40%. Designed a database model optimized for Business Intelligence, facilitating dynamic analysis and future changes.

Python Django PostgreSQL Git Docker Kubernetes Celery

Backend Developer

John Adams IT

Feb 2021 - May 2022 (1 year 3 months)

Scaled and optimized the Moving Authority system, improving its speed and reliability. Developed FMCSA Registration from scratch, integrating external APIs and automations. Implemented a multichannel campaign system with Twilio, increasing user conversion by 25%.

Python Django MySQL APIs Twilio Selenium Scripting Git GitHub

Backend Developer

RA Marketing Consulting

Jul 2020 - Feb 2021 (7 months)

Restructured the client's web system, adding e-commerce functionalities and automation. Actively participated in technical decisions, with a strong business orientation.

Python Django HTML5 JavaScript Git JSON

Education

Degrees, certifications, and relevant coursework

Universidad Nacional Experimental Politécnica de las Fuerzas Armadas

Ingenieria de Telecomunicaciones, Ingenieria de Telecomunicaciones

2013 - 2018

Estudié Ingeniería de Telecomunicaciones en la Universidad Nacional Experimental Politécnica de las Fuerzas Armadas. Adquirí conocimientos en desarrollo web, refactorización de sistemas legacy y diseño de arquitecturas de bases de datos.