Staff Ruby Engineer

Job Title: Staff Ruby EngineerJob Type: ContractorLocation: RemoteJob Summary: In this role, you'll apply your expertise to help train next-generation AI systems. Your work will shape how models learn, reason, and perform through high-quality, real-world input. No prior experience in AI is required — your domain knowledge is what matters.Key Responsibilities:Design and architect scalable, maintainable systems using Ruby and Ruby on RailsDevelop and optimize database schemas and queries for performance and reliabilityLead API design and implementation, ensuring robust service-oriented architectureMentor and guide engineers, fostering a culture of code quality and technical growthAnalyze application bottlenecks and drive solutions for enhanced performanceEstablish and enforce coding standards, best practices, and design principlesCollaborate with cross-functional teams to translate business needs into technical solutionsRequired Skills and Qualifications:Expert-level proficiency in Ruby and Ruby on RailsProven experience in system design and architecture for large-scale applicationsStrong background in database modeling, optimization, and managementDemonstrated ability in performance profiling and tuning of web applicationsExtensive hands-on experience with API design and service-oriented systemsTrack record of providing mentorship and technical leadership within engineering teamsCommitment to high code quality, automated testing, and best software practicesPreferred Qualifications:Experience leading complex projects or initiatives in dynamic environmentsBackground in scaling distributed systems and microservices architectureFamiliarity with modern DevOps practices and cloud platforms