Vulnerability Researcher — London On‑Site w/ Equity

Zealot Labs, Inc.; Greater London; Hybrid; GBP 70,000 - 130,000; Full time

Benefits offered by this job

Equity stake

Competitive base salary

Job summary

Zealot Labs, Inc. is building AI-driven vulnerability research tools in London, on-site, backed by tier-1 investors. The team features alumni from Anthropic, xAI, and Anduril, with a strong focus on practical exploitation, emulation, and ML infrastructure for automated analysis.

We design and run agentic systems to target firmware, networks, and IoT, using QEMU, Unicorn, Qiling, and advanced debuggers. If you’re sharp, hungry, and ready to ship, join our small team with high ownership.

Qualifications

• 2–3+ years across systems programming (C/C++, Rust) and ML infrastructure.
• Comfort with binary analysis, memory corruption classes, and modern mitigations (ASLR, CFI, PAC, MTE).
• Hands‑on work with agent harnesses — orchestration, tool‑use, eval loops — in production or benchmark scale.

Responsibilities

• Help design and build agentic systems that autonomously perform vulnerability research against real targets: firmware, network stacks, mobile OSes, and IoT.
• Wire emulation (QEMU, Unicorn, Qiling), instrumentation (Frida, DynamoRIO), fuzzing, and exploit primitives into tool interfaces for agents.
• Build the evaluation and benchmarking infrastructure that tells us whether any of it is actually working.

Skills

C/C++

Rust

ML infra

Binary analysis

Emulation stacks

Debugger skills

Tools

GDB

IDA/Ghidra

Job description

Zealot Labs, Inc. is building AI-driven vulnerability research tools in London, on-site, backed by tier-1 investors. The team features alumni from Anthropic, xAI, and Anduril, with a strong focus on practical exploitation, emulation, and ML infrastructure for automated analysis.

We design and run agentic systems to target firmware, networks, and IoT, using QEMU, Unicorn, Qiling, and advanced debuggers. If you’re sharp, hungry, and ready to ship, join our small team with high ownership.