Senior Software Engineer - Ruby + React

Costa RicaFull-TimeSeniorSoftware Engineering

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Develop and maintain scalable full-stack applications using Ruby on Rails for backend services and React for modern frontend interfaces.
Design and implement robust APIs and integrations that support reliable communication between services and external platforms.
Troubleshoot and resolve complex production issues, ensuring high performance, reliability, and system stability.
Collaborate with cross-functional teams including product managers, designers, and engineers to deliver high-quality features and improvements.

5+ years of experience in full-stack software development building scalable and production-ready applications.
Strong proficiency in frontend technologies including React, JavaScript, HTML, and CSS, along with backend development using Ruby and Ruby on Rails.
Solid experience working with relational databases such as PostgreSQL and caching technologies like Redis.
Strong understanding of software architecture, data structures, and performance optimization techniques.
Proven experience debugging and troubleshooting complex production issues in distributed systems.
Experience with system observability, monitoring, and application performance analysis.
Strong knowledge of database design principles and query optimization strategies.
Experience addressing technical challenges related to system reliability, scalability, and customer-facing issues.
Excellent communication skills and fluency in English, with the ability to collaborate effectively with technical and non-technical stakeholders.
Experience working in agile environments such as Scrum and collaborating across multiple teams.