Software Engineer, Detection
Doppel · 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, smarter defense, 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. --- ## What We’re Building We’re building an **AI-native social engineering defense platform** that monitors **billions of domains, social media accounts, apps, and dark web forums**, leveraging AI agents to identify and neutralize digital threats. --- ## What We’re Looking For (Software Engineer, Detection) We’re looking for engineers who love building and operating **backend systems at scale**—someone who can take ambiguous detection/product problems and deliver reliable production services and UIs that help operations and customers find and remediate threats. You’ll focus on: - High-throughput **ingestion, enrichment, scoring, and alerting pipelines** - **APIs and dashboards** - **Threat-linking infrastructure** - Reliable **automation** used daily by stakeholder teams ### Required / Strong Fit - Hands-on experience building **production backend services** or full-stack features (or equivalent) - Proven record of shipping end-to-end: **design → implementation → testing → monitoring → oncall** - Strong mastery of at least one backend language: **Python, Go, Java, or Node** - Comfort with **web APIs**, **async processing**, and service frameworks - Solid system design skills (e.g., **sharding, caching, queueing, idempotency, backpressure**) - Experience building and operating **large data pipelines** (batch/streaming), working with warehouses/OLAP, and designing scalable schemas - Deep practical backend experience: **databases (SQL + NoSQL), caching, message queues, rate limiting, retries**, and cost/latency tradeoffs - Strong **observability, debugging, and incident response** skills (logging, tracing, dashboards, SLOs/alerts) - Product ownership and excellent cross-functional communication (collaborating with **Operations, Customer Success, Sales**) ### As Part of Our NY Team, You’ll - Protect billions of people from **digital impersonation** - Own work end-to-end—from collecting requirements to iterating on shipped releases - Mentor junior engineers, make key product decisions, and help foster a high-performing team culture --- ## 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 --- ## About 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 can spread. If you’re driven to solve rea
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