Backend Software Engineer

Backend Software EngineerTitle of Role: Backend Software EngineerLocation: San Francisco, onsiteCompany Stage of Funding: Series C — Software DevelopmentOffice Type: OnsiteSalary: $130K–$400KCompany DescriptionWe're representing a dynamic company at the forefront of labor markets and AI research. This organization partners with leading AI labs and enterprises to provide essential human intelligence for AI development. With a vast talent network that trains frontier AI models, they are creating a new category of work where expertise drives AI advancement. This company is committed to building a fast-paced, ambitious team that collaborates closely with researchers and operators to redefine the systems shaping society.What You Will DoDesign and build scalable backend APIs and services that support critical workflows for advanced AI companies.Collaborate with product and design teams to rapidly ship features while maintaining high standards for code quality.Write production-grade code and contribute to comprehensive technical documentation.Participate in code reviews and technical design discussions to elevate team standards.Solve complex real-world problems under practical constraints, impacting customer experiences directly.Contribute to core systems that enhance training, evaluation, and scaling for leading AI labs.Ideal Candidate Background5+ years of experience in backend software engineering with a strong proficiency in Python or equivalent languages.Deep expertise in designing and scaling distributed systems, including APIs and SQL/NoSQL databases.Skilled in cloud platforms like AWS or GCP, with experience in modern microservices architecture.Proven track record of end-to-end ownership of complex backend projects and mentoring junior engineers.Excellent communication skills with the ability to translate technical concepts into business impacts.PreferredExperience in high-growth startups or AI labs, particularly those focused on infrastructure and machine learning.A strong understanding of system design principles with the ability to lead architecture discussions.Compensation and BenefitsThe salary for this role ranges from $130K to $400K, accompanied by a generous equity grant vested over four years and various relocation and housing bonuses. Enjoy additional perks such as a monthly stipend for meals, a free gym membership, and comprehensive health insurance.