Andoni Bretón's Work | ContraWork by Andoni Bretón

Andoni Bretón

Andoni Bretón

MSc Student in Advanced Chemical Engineering

Ready for work

Andoni is ready for their next project!

Guadalupe, Mexico

Guadalupe, Mexico

Cover image for Characterization of Aluminum Thin Films with Gold Nanoparticles

Characterization of Aluminum Thin Films with Gold Nanoparticles

Cover image for Molecular Analysis of Anthracene-Based Dyes for DSSC

Molecular Analysis of Anthracene-Based Dyes for DSSC

Cover image for Optimization of Microchannels for Joule Heating Control

Optimization of Microchannels for Joule Heating Control

Join 50k+ companies and 1M+ independents

Hire creatives Get hired

For independents

Contra Pro Manage freelance projects Get verified as an expert Find jobs Get discovered Sign contracts Send invoices Commission-free payments

For companies

For companies Manage team projects Share hiring workspace Post jobs Discover contractors Sign contracts Approve invoices Global payments & tax compliance

Use Cases

For companies For freelancers For creator tools For agencies For VCs

Resources

Partner networks Advertising Challenges Creative Human Data Human Creativity Benchmark Human in the loop API Project-based hiring calculator Guide to flexible hiring Guide for agencies Creator tools awards Customer stories Blog FAQs for freelancers FAQs for companies Referrals

Hire Freelancers

Explore all Top independents Design Engineering Marketing Music & audio Social media Video & animation Product Business consulting & HR Other

Company

Mission Careers Terms & conditions Privacy policy Cookie policy

Contact

Contact support

For independents

Contra Pro Manage freelance projects Get verified as an expert Find jobs Get discovered Sign contracts Send invoices Commission-free payments

For companies

For companies Manage team projects Share hiring workspace Post jobs Discover contractors Sign contracts Approve invoices Global payments & tax compliance

Use Cases

For companies For freelancers For creator tools For agencies For VCs

Resources

Partner networks Advertising Challenges Creative Human Data Human Creativity Benchmark Human in the loop API Project-based hiring calculator Guide to flexible hiring Guide for agencies Creator tools awards Customer stories Blog FAQs for freelancers FAQs for companies Referrals

Hire Freelancers

Explore all Top independents Design Engineering Marketing Music & audio Social media Video & animation Product Business consulting & HR Other

Contact

Contact support

Company

Mission Careers Terms & conditions Privacy policy Cookie policy

© 2026 Contra.Work Inc