Software Engineer, Simulation
Doppel · San Francisco, New York
About this role
## Why join Doppel Doppel 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 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 enable faster disruption and modern security awareness at scale. Backed by leading investors (including **Andreessen Horowitz** and **Bessemer Venture Partners**) and trusted by enterprise customers, Doppel is a rapidly growing **Series C** startup tackling urgent trust and safety challenges. --- ## What we’re building We’re building an **AI-native social engineering defense platform** that designs scalable systems to monitor billions of domains, social media accounts, apps, and dark web forums—then leverages AI agents to identify and neutralize digital threats. --- ## The role: Software Engineer (Simulation) We’re looking for an experienced **fullstack engineer** to help build our new **Simulation** product. Simulation is a small, fast-moving team inside Doppel—think of it as a **startup within a startup**. We launched recently, crossed 6 figures within a few months, and are on track to hit **$1M ARR in Q4**. ### Mission Help companies proactively defend against the next wave of social-engineering attacks. ### What you’ll build We’re creating **AI-powered phishing simulations** using large-language models and voice synthesis to mimic real-world threats, including: - Hyper-personalized emails - High-fidelity “manager calls” that test and train enterprise security teams You’ll join a team led by ex-Meta and YC founders, already working with Fortune 100 customers. ### Examples of work - Build a **“Cursor for phishing simulation”** flow that lets users create simulations using natural language - Build **voice deepfakes** that use AI to call employees pretending to be their co-worker Helpful context: - https://www.doppel.com/blog/retire-the-phishing-test-doppel-simulation-is-here - https://www.doppel.com/blog/founders-note-why-we-built-doppel-simulation --- ## What we offer 🚀 Mission-driven culture: low ego, high ownership, deep customer obsession, exceptional talent density 🍽️ Free lunch and dinner in the office 🌴 Flexible PTO ✈️ Quarterly team offsites --- ## JOIN DOPPEL Doppel is the first platform built to dismantle digital deception at scale. We scan **150B+ entities daily** and deploy continuously adaptive AI SOC agents—paired with expert human analysts—to uncover and disrupt the infrastructure behind phishing, impersonation, and online fraud before attacks spread. If you’re driven to solve real-world problems with bold technology, we’d love to meet you.
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