Join Doppel as a Fullstack Engineer to build AI-powered phishing simulations for enterprise security teams.
Posted by employer 4 months ago
First seen on Joblaze 1 month ago
Last verified on the company career page 1 day ago
Skills & Technologies
AI in the day-to-day
We're creating AI-powered phishing simulations that use large-language models and voice synthesis to mimic real-world threats.
Not disclosed in this posting: compensation, years of experience, work arrangement, visa sponsorship.
Benefits
Joblaze summary
In this role, the Software Engineer will focus on developing the Simulation product, creating AI-driven phishing simulations that test and train enterprise security teams. Proficiency in full-stack development, particularly with large-language models and voice synthesis technologies, is essential. This position is ideal for experienced engineers looking to thrive in a fast-paced startup environment within a well-backed company. The team, composed of ex-Meta and YC founders, is dedicated to innovative solutions in social engineering defense.
Joblaze insights
- Listed about a month ago — first seen on Joblaze September 3, 2026. Last confirmed on Doppel's careers page October 29, 2026.
- This exact title is also open at 1 other location at Doppel: San Francisco, New York.
- AI/ML appears in 6.2% of 275 comparable mid fullstack roles; Large Language Models appears in 0.4% of 275 comparable mid fullstack roles.
Quick facts
- What's the tech stack?
- Joblaze extracted these technologies from the posting: AI/ML, Large Language Models, voice synthesis.
- What seniority level is this role?
- Doppel targets mid-level candidates for this position.
- Is this full-time or contract?
- Full-time for this Software Engineer, Simulation role at Doppel.
From the original posting
What We're Looking For
We’re looking for an experienced fullstack engineer to help build out our new Simulation product. Simulation is a small, fast-moving team inside Doppel (a series C company backed by Bessemer and a16z) building an entirely new product line, think of it as a startup within a startup. We crossed 6 figures within a few months of launching and are on track to hit 1M ARR in Q4.
Our mission: to help companies proactively defend against the next wave of social-engineering attacks. We’re creating AI-powered phishing simulations that use large-language models and voice synthesis to mimic real-world threats - from hyper-personalized emails to high-fidelity “manager calls” that test and train enterprise security teams.
You’ll be joining a team led by ex-Meta and YC founders, already working with Fortune 100 customers. It’s the rare mix of startup-level growth and creativity with established-company backing and stability. The perfect place to move fast, ship real impact, and help define an emerging category.
We only just recently launched it but market traction is growing extremely fast and we need people excited to jump and do whatever it takes to build what our customers desperately want. For example:
Build out a “Cursor for phishing simulation” flow that lets users create simulations using natural language..
Build out voice deepfakes that use AI to call employees pretending to be their co-worker.
Here are some additional resources on what we built and why.
🌴 Flexible PTO
✈️ Quarterly team offsites
Standard company text repeated across Doppel's postings is omitted here.