Senior Security Engineer

Senior Security Engineer at Parity Technologies, remote, contract via UK entity. Work on blockchain security, Rust code, ML tools, and bug bounty management.

Parity is one of the world's most experienced companies building the core infrastructure behind blockchain, developing open-source software including Polkadot, Polkadot SDK, and Kusama. The Security Engineering team protects the Polkadot ecosystem by designing secure software, auditing code, and building ML tools to automate security analysis. Responsibilities: - Assist in developing secure software – write and optimise Rust code to build security-critical components and tools - Code auditing & vulnerability analysis – perform deep manual and automated code reviews to identify and mitigate security vulnerabilities - ML-powered security – design and implement machine learning models for automated security analysis, anomaly detection, and threat mitigation - Bug bounty & vulnerability management – manage bug bounty submissions, triage security reports, and collaborate with ethical hackers to resolve issues - Secure development best practices – work with engineering teams to integrate security best practices into the software development lifecycle - Threat modeling & risk assessment – identify and assess security risks in our blockchain infrastructure, smart contracts, and core software - Stay cutting-edge – research and implement the latest advancements in secure coding, ML-driven security, and blockchain security

- Experience with secure coding practices and memory safety concepts - Background in code auditing, vulnerability analysis, or exploit development - Experience triaging and resolving bug bounty reports - Knowledge of machine learning techniques applied to security (e.g., anomaly detection, fuzzing, automated threat detection) - Familiarity with cryptographic principles, blockchain security, or decentralized systems - Strong problem-solving skills and an offensive security mindset

Remote (contract via Parity's UK entity)