Staff Ruby Engineer

About this role

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.

Skills

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 & 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