I am German Lopez Frezza, an independent mobile and web developer based in Buenos Aires. I own end-to-end product development, from ideation and design to implementation, launch, and continuous improvements, with a strong focus on delivering delightful user experiences. My apps have been published on the App Store and Google Play, and I continuously iterate based on real user feedback. I've worked across freelance and corporate roles, building solutions with Flutter, PHP, Python, and cloud services, and I enjoy collaborating with cross-functional teams to solve real problems. I’m always learning new technologies and improving processes to help products grow.

German Lopez Frezza

PRO

I am German Lopez Frezza, an independent mobile and web developer based in Buenos Aires. I own end-to-end product development, from ideation and design to implementation, launch, and continuous improvements, with a strong focus on delivering delightful user experiences. My apps have been published on the App Store and Google Play, and I continuously iterate based on real user feedback. I've worked across freelance and corporate roles, building solutions with Flutter, PHP, Python, and cloud services, and I enjoy collaborating with cross-functional teams to solve real problems. I’m always learning new technologies and improving processes to help products grow.

Available to hire

I am German Lopez Frezza, an independent mobile and web developer based in Buenos Aires. I own end-to-end product development, from ideation and design to implementation, launch, and continuous improvements, with a strong focus on delivering delightful user experiences. My apps have been published on the App Store and Google Play, and I continuously iterate based on real user feedback.

I’ve worked across freelance and corporate roles, building solutions with Flutter, PHP, Python, and cloud services, and I enjoy collaborating with cross-functional teams to solve real problems. I’m always learning new technologies and improving processes to help products grow.

See more

Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Intermediate

Language

Spanish; Castilian
Fluent
Italian
Beginner
English
Fluent

Work Experience

Independent Developer at Owee Split
July 1, 2025 - Present
Founder and developer of Owee Split, a mobile app that helps friends and groups split expenses in a simple, frictionless way. Led end-to-end product development from ideation and design through development, launch, and ongoing improvements. App published on the App Store and Google Play; strong focus on user experience and iterative improvements based on real user feedback. Tech stack includes Flutter, Firebase, Laravel, and Astro.
Freelance PHP Developer at Self-employed / Freelance
August 1, 2019 - Present
Maintenance of websites; bug fixing; feature enhancements and development of new functionalities. Tools: PHP, JavaScript, HTML5, Bootstrap, MySQL.
Specialist at Accenture
September 1, 2017 - May 31, 2020
Process enhancement – SAP and Excel automation; Python and HTML5 scripts; development of a new payout calculation process; onboarding training for Upstream activities; led Joint Venture team (15 members).
Team Leader
January 1, 2014 - August 31, 2017
Project execution and control (8 members); SAP T-Code enhancement; testing of T-Code functionality; automation of project processes in Python & VBA; Subject Matter Expert activities (Revenue); financial impacts review.
Ssr Business Analyst
February 1, 2013 - January 31, 2014
Oil & Gas revenue accounting activities; closing activities; financial reports; account reconciliation; master data analysis.
Ssr Business Analyst at IBM
July 1, 2012 - August 31, 2013
Oil & Gas revenue accounting activities; closing activities; financial reports; account reconciliation; master data analysis.
Business Analyst at Gas Natural BAN
August 1, 2011 - June 30, 2012
Oil & Gas revenue accounting activities; closing activities; financial reports; account reconciliation; master data analysis.
Accountant Auxiliar at Gas Natural BAN
January 1, 2009 - August 31, 2011
Accounting auxiliary duties supporting revenue accounting processes and monthly closings.

Education

Systems Analyst, Computer Science at Universidad Siglo 21
October 1, 2022 - August 31, 2024
Técnico Superior en Programación, Information Technology at Teclab Instituto Técnico Superior
January 1, 2020 - December 31, 2022

Qualifications

edX Verified Certificate for Statistical Thinking for Data Science and Analytics
January 11, 2030 - January 7, 2026
edX Verified Certificate for Principles of Machine Learning
January 11, 2030 - January 7, 2026
edX Verified Certificate for Introduction to Computer Science and Programming Using Python
January 11, 2030 - January 7, 2026
edX Verified Certificate for Data Science Orientation
January 11, 2030 - January 7, 2026
SAP ABAP Diploma
January 11, 2030 - January 7, 2026

Industry Experience

Software & Internet, Professional Services