Backend Engineer

About PhonicPhonic is a product and research lab focused on powering the most realistic, human-like voice AI conversations. We've re-thought the entire stack in pursuit of this goal, from models to product, to create voice agents that feel like they truly understand you, respond emotionally and perform agentic tasks with frontier intelligence.Our team includes top-tier AI researchers, international olympiad medalists, and former founders.Our customers include companies that are building voice-native AI products in industries such as customer support, healthcare, and logistics. We have raised over $30M from tier 1 VCsAbout the TeamPhonic has a very talent-dense and close-knit team. We collaborate with high trust and are constantly trying to improve how we work to deliver world-class research and product. Everyone takes ownership in what they do and they aren't afraid to dive in headfirst into new problems. Our team includes top-tier AI researchers, international olympiad medalists, and former founders and we're fully in-person in our SF office.About The RoleAs a Backend Engineer at Phonic, you'll build the critical systems that power real-time voice AI at scale. You'll craft highly reliable, low-latency infrastructure that serves production traffic for hundreds of thousands of mission-critical calls every day. Working directly with product, design, and research teams, you'll ship cutting-edge AI capabilities while maintaining and scaling our infrastructure as we rapidly grow revenue.What You'll DoBuild and maintain highly reliable, low-latency systems serving production traffic for hundreds of thousands of mission-critical calls dailyWork directly with product, design, and research teams to ship cutting-edge AI capabilities to usersImprove existing products to ensure they are intuitive, sleek, and make innovative use of our research team's latest breakthroughsScale infrastructure to support new traffic as we rapidly grow revenue What You'll Bring3+ years of professional software engineering experience, or evidence of exceptional ability through at least one standout accomplishment, owning and delivering a non-trivial software system, a substantial personal project with real users, success in a competitive programming contest or hackathon, or a significant open-source contributionStrong proficiency in TypeScriptA bias toward shipping: you believe done is better than perfect Nice To HaveYou enjoy being customer-facing and get energy from shipping to usersYou're broadly excited by LLMs and the future of AIYou are a former founder BenefitsTop-tier compensation: in order to get the best talent, we provide salary and equity that recognize your skillsetMeals: free breakfast, lunch, and dinner provided in the officeHealthcare: Comprehensive health, dental, and visionWe have regular off-sites and team celebrations401(k) - Let us help you plan for the future. We've got you covered.