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

Build and maintain high-performance React/Next.js web applications, design and implement full-stack features, integrate APIs and real-time voice AI workflows, optimize frontend performance, build monitoring tools, debug production issues, and contribute to architecture and product direction.

Work with founders to create growth-focused short-form video and written content for LinkedIn, X, and YouTube Shorts. Edit and optimize video, write captions and hooks, design visuals in Canva/Figma, maintain posting cadence, cover launches and news, and analyze performance to inform strategy.

Build and maintain Python-based state systems for real-time voice AI, integrate multiple LLM providers, write async high-performance code and tests, monitor production, design databases (SQL/NoSQL), implement auth, and build microservices on AWS/Kubernetes to ensure reliability and high availability.

Own post-sale relationships for high-volume enterprise accounts, ensuring retention, expansion, and satisfaction. Monitor performance, run business reviews, identify upsell opportunities, coordinate with engineering and CS, develop account plans, and represent Phonely to stakeholders and at events.

Partner with sales to perform technical discovery, build and deliver tailored demos, scope and manage POCs, answer technical questions on APIs, webhooks and telephony, produce implementation plans and technical collateral, support procurement/security reviews, and feedback product/engineering on customer needs.

Own onboarding and support for SMB and mid-market customers: run demos and training, deploy live, monitor account health, troubleshoot and escalate technical issues, manage inbound support, document feedback, build relationships, track onboarding metrics, and collaborate with sales on handoffs and upsells.

Open invitation to propose a role at a fast-moving voice AI startup. Candidates should describe how they'd contribute, be self-starters who have built something notable, and thrive on a small team. Apply with a resume and a short note. On-site in San Francisco (remote depending on role); perks include meals, offsites, and equity.

Lead all marketing from 0-to-1: define brand and messaging, own website and ICP, build organic content and thought leadership, implement SEO/PR/paid demand generation, manage external agency campaigns, and design onboarding and nurture sequences to drive pipeline and retention for a B2B SaaS voice AI product.

Outbound-heavy BDR role focused on generating pipeline and booking meetings for Account Executives. Prospect target accounts, conduct outreach via phone/email/LinkedIn, qualify inbound leads, maintain CRM records, collaborate with marketing, and hit activity and pipeline targets while learning product and competitive landscape.

Design, build, and operate low-latency, highly available cloud infrastructure for real-time voice AI. Own Kubernetes clusters end-to-end, implement IaC, CI/CD and GitOps (ArgoCD), maintain observability and security, optimize performance and costs, lead incident response, and partner with engineering, product, and support teams.