Why Join Doppel

Doppel is built to outsmart one of the great threats AI presents: mass-manufactured social engineering. Countless scams, deepfakes, and other social engineering attacks are surging across every digital channel: websites, social media, ads, encrypted messaging apps, mobile, and more. Our mission is simple but bold: make the internet a safer place by outsmarting the world’s fastest-evolving digital threats.

Backed by a16z and Bessemer and trusted by some of the world’s most recognized brands (OpenAI, United Airlines, Coinbase, etc.), Doppel is growing fast. If you’re driven to solve real-world problems with bold technology, we’d love to meet you.

What We're Building

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.

What We're Looking For

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 scale

• Built a QA & data labeling tool to close the feedback loop with human analysts, ML models, and LLM agents

As 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 harm

• Have complete end to end ownership - from directly collecting product requirements to continuously evaluating and iterating on shipped releases

• Mentor junior engineers, foster a high-performing team culture, and shape the team roadmap

• Enjoy monthly in-person dinners, happy hours, and social activities (Exploratorium, Valkyries game, etc.)

What We Offer

🚀 A mission-driven culture with low ego, high ownership, deep customer obsession, and 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 over 150 billion 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. Our Threat Grid turns every customer signal into shared intelligence, making each disruption smarter, faster, and more effective.

We’re not just another cybersecurity company. We’re defining the future of social engineering defense, where trust is protected, and deception becomes unprofitable. Backed by top-tier investors and trusted by some of the world’s most recognized brands, Doppel is growing fast. If you’re driven to solve real-world problems with bold technology, we’d love to meet you.