Top Tech Jobs & Startup Jobs in San Francisco Bay Area, CA

Lead frontend architecture and delivery for Retell AI’s voice platform. Build responsive React and TypeScript interfaces for agent configuration, dashboards, analytics, and monitoring. Partner with product, design, and backend engineering; improve performance, accessibility, reliability, and reusable component patterns. Provide technical leadership through code reviews, testing, mentoring, API design, and ownership of complex projects from concept through launch.

Own enterprise accounts receivable and billing operations for a fast-growing SaaS company. Build invoicing, collections, cash application, and controls from scratch; manage enterprise disputes, aging, DSO, and usage-based contracts; select and automate billing tools; collaborate with Sales, Customer Success, customers’ AP teams, and contract accountants; and report on AR health while establishing scalable finance processes.

Own internal IT operations, including employee onboarding and offboarding, device configuration, troubleshooting, SaaS and identity administration, hardware inventory, office technology, endpoint compliance, access reviews, and SOC 2 support. Build automations for SaaS provisioning, hardware lifecycle management, and IT workflows while improving documentation, security practices, and employee productivity.

Lead end-to-end deployments of Retell's voice AI platform, guiding discovery, designing conversational workflows, building prototypes, driving technical delivery, creating ROI models, and advising executives to ensure successful production launches and adoption.

Build and maintain technical security and compliance controls across SOC 2, ISO 27001, HIPAA, and enterprise frameworks. Automate evidence collection, access reviews, security checks, and compliance workflows; support audits; address security questionnaires; monitor controls for access, infrastructure, data protection, logging, and vulnerabilities; and improve scalable compliance systems.

Owns enterprise deal approvals from quote to cash, including pricing, discounts, usage commitments, payment terms, margin modeling, and legal and billing handoffs. Builds approval matrices and pricing guardrails, monitors deal metrics, and automates workflows. Partners closely with Sales, Finance, and Legal to structure profitable deals quickly. The role requires enterprise SaaS deal desk experience, including deals exceeding $300,000, and reports directly to the founder.

Build Retell AI’s legal function and serve as Sales’ primary partner on enterprise transactions. Responsibilities include negotiating MSAs, DPAs, BAAs, and order forms; creating contract templates, negotiation playbooks, and turnaround SLAs; advising on voice AI issues such as consent, TCPA, AI disclosure, and use-case reviews; and managing platform terms, privacy policies, acceptable-use policies, and outside counsel.

Own post-launch relationships and net revenue retention across enterprise accounts. Responsibilities include driving product adoption and consumption, managing renewals and expansions, using usage data to build commercial cases, conducting QBRs, negotiating renewals, and partnering with Product and Engineering on customer blockers. The role requires post-sales experience at a B2B software company, commercial ownership, executive communication, and comfort with usage analytics and technical concepts.

Own and build Retell AI’s company-wide procurement function, including vendor selection, sourcing, negotiation, contracting, renewals, spend management, cost savings, and vendor consolidation. Create scalable procurement processes, policies, and approval workflows while partnering with Finance, Legal, Engineering, IT, HR, and leadership. Manage strategic software and infrastructure spend, improve cost visibility, negotiate favorable terms, and use automation and AI to improve efficiency.

As a Senior Backend Engineer, you'll design scalable backend systems, build foundational architecture, and manage complex projects within a voice AI-driven platform.