Staff Ruby Engineer

Job Title: Staff Ruby Engineer Job Type: Contractor Location: Remote Job 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 Rails - Develop and optimize database schemas and queries for performance and reliability - Lead API design and implementation, ensuring robust service-oriented architecture - Mentor and guide engineers, fostering a culture of code quality and technical growth - Analyze application bottlenecks and drive solutions for enhanced performance - Establish and enforce coding standards, best practices, and design principles - Collaborate with cross-functional teams to translate business needs into technical solutions Required Skills and Qualifications: - Expert-level proficiency in Ruby and Ruby on Rails - Proven experience in system design and architecture for large-scale applications - Strong background in database modeling, optimization, and management - Demonstrated ability in performance profiling and tuning of web applications - Extensive hands-on experience with API design and service-oriented systems - Track record of providing mentorship and technical leadership within engineering teams - Commitment to high code quality, automated testing, and best software practices Preferred Qualifications: - Experience leading complex projects or initiatives in dynamic environments - Background in scaling distributed systems and microservices architecture - Familiarity with modern DevOps practices and cloud platforms