Staff Backend Engineer

Staff Backend Engineer (Product Engineering)Location: San Francisco, CA (Onsite)Compensation: $200,000 – $250,000 base salary + equityAboutLovefreedom Solution is partnering with the first audio data research company, applying an R&D-driven approach to building high-quality datasets for artificial intelligence. Our mission is to enable AI to operate effectively in real-world environments, with a focus on audio as a primary interface.Founded in 2024 by former Scale AI engineers and operators, has rapidly scaled its customer base to include leading AI labs and enterprise organizations, including multiple FAANG companies. The company recently raised a $50M Series B from Meritech, NVIDIA, Alt Capital (Jack Altman), Amplify Partners, First Round Capital, and other tier-one investors.About The RoleClients is seeking a Staff Backend Engineer to lead the design and development of scalable systems that power its audio data platform. This role will focus on building infrastructure and backend services that process large-scale audio datasets and enable customers to derive meaningful insights for training AI models.The ideal candidate will bring strong technical leadership, product engineering experience, and a track record of delivering scalable, production-grade systems.Key ResponsibilitiesDesign, build, and maintain scalable backend systems for processing large-scale audio datasets Develop and deploy data pipelines handling high-volume, real-time data workloads Collaborate with cross-functional teams, including research and operations, to improve data collection and system performance Implement and evaluate solutions leveraging LLMs and digital signal processing (DSP) techniques Lead full lifecycle development of backend services from architecture through deployment Establish engineering best practices, standards, and system design principles Mentor and support the growth of engineering team members Required Qualifications6+ years of experience in backend or full-stack software engineering Strong experience building scalable, distributed systems and data pipelines Proficiency in backend development using modern frameworks (e.g., Node.js, TypeScript, or similar) Experience with cloud infrastructure (e.g., AWS or equivalent) Proven track record of delivering production-grade, customer-facing systems Experience working in fast-paced, high-growth environments Demonstrated technical leadership through ownership, mentorship, or team leadership Preferred QualificationsExperience with machine learning systems, data infrastructure, or large-scale data processing Familiarity with digital signal processing (DSP) or audio-related technologies Experience deploying machine learning models in production environments Prior experience leading engineering teams in startup or high-growth environments Technology StackFrontend: Next.js, TypeScript, TailwindCSS Backend: Node.js, tRPC Infrastructure: AWS, PostgreSQL, Trigger.dev Audio/Real-Time: WebRTC, FFmpeg Work EnvironmentOnsite in San Francisco, CA Collaborative, high-performance engineering culture Rapid development cycles with frequent production deployments Compensation & BenefitsBase salary: $200,000 – $250,000 Competitive equity package Opportunity to work on cutting-edge AI infrastructure with industry-leading partners Right to RepresentBy applying to this position, you acknowledge and agree to be represented by Lovefreedom Solution for this opportunity.Equal Opportunity StatementDavid AI is an equal opportunity employer and is committed to building a diverse and inclusive workforce. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability, or protected veteran status.Skills: processing,data,building,design,infrastructure,datasets,capital,base,aws,leadership