12/06/2025 updated
JR
100 % available
Senior Ruby on Rails Developer | 30y experience | Fast Delivery
Gijón, Spain
Only remote
BSc Product and Interaction Design (Year 1, not completed)About me
Ruby on Rails specialist, 30y in web development, 18 in Rails. I build, fix, and improve applications. I work fast, I write clean code with tests, and I deliver. I work remotely, async, and I handle projects end-to-end: requirements through deployment. Clear communication, zero surprises.
HTMLJava (Programming Language)JavaScriptData AnalysisArchitectureBusiness To BusinessBusiness Process ImprovementCascading Style Sheets (CSS)Software as a ServiceDatabasesData ManagementSoftware Design PatternsPerformance ManagementSystem MonitorInfrastructure Management
Ruby on Rails Development
Extensive experience building Rails applications and contributing to large monolithic systems
Software Architecture and Design
Experience in designing maintainable systems, refactoring legacy code, and implementing design patterns for scalable applications
Process Improvement
Ability to analyze broken processes, implement organizational improvements, and drive technical debt management
Full-Stack Development
Familiarity with Python, Java, JavaScript, HTML, CSS for building complete web applications and systems from concept to deployment
Database and Infrastructure Management
Proficiency in PostgreSQL, MySQL, and Redis for data management and system architecture optimization
SaaS Development
Experience with SaaS platforms in diverse industries, such as video-on-demand content scheduling, or B2B marketplace solutions
Data Processing and Analytics
Skills in Snowflake, Datadog for data analysis and system monitoring
Team Leadership and Mentoring
Experience in mentoring developers, conducting performance reviews, and onboarding new team members
Experience
Professional experience10+ years
Freelancer since1998
Languages
EnglishFluentPortugueseGoodSpanishNative speaker
Project history
Staffing platform connecting businesses and temp workers in B2C, B2B, Marketplace, Recruitment, and SaaS domains. Contributing to modularizing large Rails monolith, writing maintainable code, improving developer experience, and advising on architectural decisions.
Cloud platform for video-on-demand content scheduling. Led organizational transformation from engineering rotation to dedicated customer support team, built stakeholder consensus, designed hiring process, and created sustainable operation through comprehensive documentation.
Cloud platform for video-on-demand content scheduling. Worked on Rails monolith and ecosystem of supporting services, built features, improved UX and performance, managed technical debt, and contributed to craft-focused engineering culture.