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Thibaud Guillaume-GentilTG
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Thibaud Guillaume-Gentil

@thibaudgg

Seasoned Ruby on Rails developer focused on scalable, efficient, and useful software.

Switzerland
Message

What I'm looking for

I seek roles focused on building scalable Rails platforms, mentoring teams, contributing to open-source, and working for community-driven, impact-oriented organizations.

I am a seasoned Ruby on Rails developer with 19+ years building and scaling complex web applications, particularly for community-driven initiatives. I focus on creating tools that make hard problems simple and adhere to Rails best practices.

I have led platform reliability and performance efforts for high-traffic systems, optimized Sidekiq workflows, and tuned Heroku and AWS deployments while mentoring engineers and shaping efficient team processes.

I am a prolific open-source contributor — creator of widely used gems and founder of CSAAdmin — and I actively teach and mentor others through courses and hands-on guidance.

Experience

Work history, roles, and key accomplishments

EA

Lead Software Engineer

ElectricFeel AG

Feb 2014 - Aug 2025 (11 years 6 months)

Scaled Ruby on Rails applications for micromobility, processing billions of requests and optimizing Sidekiq workflows to improve reliability and performance across Heroku and AWS deployments. Mentored junior engineers and implemented Shape Up-driven team workflows.

IF
Current

Freelance Software Engineer

Independent / Freelance

Jan 2014 - Present (11 years 8 months)

Founded and built CSAAdmin SaaS used by 30+ CSA organizations and delivered Rails courses and mentorship for MAS-RAD master's students. Developed community-focused software and instructional materials to scale adoption.

Education

Degrees, certifications, and relevant coursework

HE

HE-ARC

Bachelor of Science, Software Engineering

2003 - 2006

Completed a Bachelor of Science in Software Engineering at HE-ARC in Neuchâtel, focusing on software development and engineering principles.

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Thibaud Guillaume-Gentil - Lead Software Engineer - ElectricFeel AG | Himalayas