Join DoppelDoppel is building the future of social engineering defense. Our AI-native platform uses agentic AI to protect executives, employees, customers, and brands from phishing, impersonation, fraud, and other AI-powered threats across digital channels. We help some of the world's most recognized brands detect and dismantle attacker infrastructure while strengthening employee resilience through threat-informed training and simulation.
By unifying Digital Risk Protection, Human Risk Management and Email Security, Doppel connects threats into a real-time intelligence graph to power faster disruption, smarter defense, and modern security awareness at scale.Backed by leading investors including Andreessen Horowitz and Bessemer Venture Partners, and trusted by leading enterprises, Doppel is a rapidly growing Series C startup building the future of social engineering defense. Our team combines deep cybersecurity expertise, operational rigor, and startup velocity to solve some of the internet's most urgent trust and safety challenges.We're building the AI-native social engineering defense platform.This means we're designing scalable systems that monitor billions of domains, social media accounts, apps, dark web forums, etc., and leverage AI agents to identify and neutralize digital threats.We're looking for an experienced backend engineer to build and scale an automated system to manage a variety of Security Analyst tasks. We aim to verify and neutralize threats in minutes using AI-driven automation.
A few examples of the work we've done recently:Built a sophisticated LLM engine to reduce verification workloads by 4x for the highest volume product line, which will enable faster takedowns at scaleBuilt a QA & data labeling tool to close the feedback loop with human analysts, ML models, and LLM agentsAs part of our SF team (in-office min 3x/week), you'll:Play a critical role in building systems that protect billions of people from AI-generated scams and general digital harmHave complete end to end ownership - from directly collecting product requirements to continuously evaluating and iterating on shipped releasesMentor junior engineers, foster a high-performing team culture, and shape the team roadmapEnjoy monthly in-person dinners, happy hours, and social activities (Exploratorium, Valkyries game, etc.)A mission-driven culture with low ego, high ownership, deep customer obsession, and exceptional talent densityFree lunch and dinner in the officeFlexible PTOQuarterly team offsites