Ismael Marín
Ruby on Rails Developer
León, Guanajuato, Mexico
Summary
👤
Senior🎓
Top SchoolIsmael Marín is a seasoned Ruby on Rails developer and technical leader with 16 years of remote-first experience building scalable backend systems for US and LATAM SaaS. He spent the last decade evolving with Rails, shipping production code as a hands-on Tech Lead at Dealerware where he merged 370+ PRs, authored 40+ ADRs, and helped run systems processing 10,000+ transactions per hour. Comfortable negotiating API contracts with external partners, he owns integrations end-to-end and has led zero-downtime migrations and analytics integrations that enabled real-time executive dashboards. Recently he’s focused on AI Engineering infrastructure, authoring rails-ai-bridge and rails-agent-skills to make agent-assisted development practical for Rails teams. His background spans e-commerce, fintech, automotive SaaS and developer tooling, with strong foundations in DDD, distributed systems, and MCP integrations. Based in León, Mexico, he prefers roles that prioritize team growth and impact over titles, and consistently advances from mid-level to lead in every company he joins.
16 years of coding experience
17 years of employment as a software developer
Certification, Web Development Macromedia 2004 MX, Certification, Web Development Macromedia 2004 MX at AulavirtualCourse, Software Development Java, Course, Software Development Java at TITECCertification, e-Business, Certification, e-Business at Universidad de las Américas, A.C.Linux/Unix System Administration Certificate, Linux/Unix, Linux/Unix System Administration Certificate, Linux/Unix at University of Illinois Urbana-ChampaignMaster, Information Technology, Master, Information Technology at ITESO Universidad Jesuita de GuadalajaraGraduate, Information Tecnnology, Graduate, Information Tecnnology at UNIVER Plantel LeónCertification, Development SQL-Server/Visual Basic 6, Certification, Development SQL-Server/Visual Basic 6 at COMPUMASTER LeónCourse, Six-Sigma, Course, Six-Sigma at Universidad de La Salle Bajío, A.C.
English, Spanish
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (49)
cms10
translation10
internationalization10
rails10
ruby10
localization10
refinery-cms10
spree10
refinery10
activemodel10
ecommerce9
searching9
commerce9
ruby-on-rails9
search-interface9
Programming languages (4)
Github contributions (5)
igmarin/igmarin
Jul 2020 - Oct 2024
Contributions:15 pushes, 1 branch in 4 years 3 months
igmarin/spree_conekta
Sep 2016 - Aug 2018
Contributions:12 pushes, 3 branches in 1 year 11 months
ecommercespreecommercepayment-gatewaygatewaypayment
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