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Senior Application Security Engineer

GLOBAL - Remote🌐 Remote💼 Full-time💰 $130,000–$130,000🗓 2026-07-06 → 2026-09-26

Core

Embed security into all phases of the software development lifecycle for MetaMask, a crypto wallet and gateway to the decentralized web, serving tens of millions of users.

Role type

Senior Application Security Engineer

Builds

Secure software solutions and AI tooling for vulnerability detection for MetaMask and Consensys products

Domain

Web3 / Blockchain / Cryptocurrency

Deliverable

production ML models | product features

Required skills

Threat modelling, security design reviews, vulnerability assessment, JavaScript security (Node.js, React, React Native), modern web/mobile security landscape, coding to fix vulnerabilities, blockchain technology familiarity

Preferred skills

Software development experience, deep Ethereum knowledge, smart contract security knowledge

Technologies

Node.js, React, React Native, Ethereum

Responsibilities

Determine root cause and severity of vulnerabilities from bug bounty platform, interface with ethical hackers and guide engineering teams to resolution, document vulnerabilities for quick action, write code to support security projects and fix vulnerabilities, assess potential security vulnerabilities and ensure remediation, conduct design reviews, threat modeling, security testing, and code reviews, identify gaps in SSDLC and lead efforts to address them, validate security patches and test for bypasses, proactively prevent future vulnerabilities through automation and controls

Seniority

Senior, hands-on IC

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