HHiring Reality
← Blockchain.com

Senior Product Security Engineer

Blockchain.com
Location
London
Posted
2 months ago
Department
Engineering - Security
What they actually want (must-haves)
  • 4+ years total security engineering experience with at least 3+ years focused specifically in application/product security or equivalent.
  • Experience with Web, Mobile, Cloud, Infrastructure Pentests and Red Teaming (e.g., phishing)
  • Proven track record of shipping security automation using CodeQL/GHAS, Snyk, or similar.
  • Expert-level ability to audit and propose fixes in Kotlin/Java, TypeScript/JS, Python, and familiarity with containerised deployments (Kubernetes).
  • Strong threat modeling experience and pragmatic architecture guidance for high-stakes financial flows (AuthN/AuthZ, Cryptography, Payments).
  • Experience building CI checks, test harnesses and lightweight fuzzing/property tests.
Nice to have
  • Prior fintech/Trading/OTC product security experience or familiarity with custody/signing patterns.
  • Practical experience designing or deploying AI-assisted security tooling, leveraging LLMs for automated software patch generation, or evaluating vulnerability detection agents within enterprise developer pipelines.
  • Prior experience operating alongside GRC frameworks, authoring developer-facing security policies from scratch, and building automated policy-as-code gateway integrations.
  • Public track record of CVEs, security research, or open-source contributions to security tooling.
  • Advanced credentials such as OSCP, OSWE, CISSP or equivalent.
What the job really is

As a Product Security Engineer at Blockchain, you will manage the Product Security program for various product lines, ensuring security is integrated from the design phase through to deployment. Your role involves leading threat modeling, conducting code reviews, and overseeing security automation processes, while collaborating closely with product and engineering teams to enhance security practices and address vulnerabilities.

Benefits
  • Full-time salary based on experience and meaningful equity in an industry-leading company
  • Mandatory in-office presence four days per week
  • Work from Anywhere Policy: remote work for up to 20 days per year
  • ClassPass
  • Unlimited vacation policy; work hard and take time when you need it
  • Apple equipment
Things to weigh
  • No salary listed
  • Mandatory in-office presence four days per week may limit flexibility for some candidates
  • Role involves significant hands-on technical work, which may not suit those looking for a purely strategic position
Job score3/5
Benefits4/5
Freshness1/5
Career value5/5
Role clarity5/5
Pay transparency0/5

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