hero

Opportunities in the Upfront Portfolio

companies
Jobs

Senior Vulnerability Researcher

Toka

Toka

Tel Aviv-Yafo, Israel
Posted on Jan 22, 2026

Senior Vulnerability Researcher

  • R&D
  • Tel Aviv
  • Full-time

Description

We are looking for a senior researcher to focus on vulnerability research and exploitation in embedded environments.

In this role, you will research proprietary technologies and analyze complex IoT and embedded devices.

You will be responsible for taking your research from initial discovery to a full end-to-end solution in production.

Requirements

  • 8+ years of relevant industry experience as a low-level vulnerability researcher.
  • Proven track record of finding memory corruption vulnerabilities (stack/heap overflows, UAF, TOCTOU, etc.).
  • Proven track record of developing complex exploits.
  • Excellent understanding of common security mitigations such as ASLR, DEP, and CFI.
  • Excellent understanding OS internals, network protocols and cryptography concepts.
  • Proficient in Assembly, C, and Python.
  • Expert with IDA Pro / Ghidra, and GDB.

Advantages

  • B.Sc. or M.Sc. in Computer Science, Mathematics, or Engineering.
  • Published research (CVEs, blog posts, or talks).
  • Experience with RF communication schemes such as WiFi, Bluetooth, GPS…
  • Experience with developing / researching in Android / iOS environments.