Lead Product Security Engineer (Staff) - Remote UK

Location: United Kingdom; London

Employment Type: Full time

Location Type: Remote

Department: R&D InfoSec

About Chainalysis: Blockchain technology is powering a growing wave of innovation. Businesses and governments around the world are using blockchains to make banking more efficient, connect with their customers, and investigate criminal cases. As adoption of blockchain technology grows, more and more organizations seek access to all this ecosystem has to offer. That’s where Chainalysis comes in. We provide complete knowledge of what’s happening on blockchains through our data, services, and solutions. With Chainalysis, organizations can navigate blockchains safely and with confidence.

About the Team: Product Security at Chainalysis keeps our SaaS platform — used by governments, banks, and crypto exchanges to investigate financial crime — secure by design. We partner directly with product and platform engineering on threat modeling, design reviews, penetration testing, and remediation of findings across our AWS and Kubernetes estate.

In this role, you’ll:

• Lead Product Security across Chainalysis's SaaS offerings, partnering with product and platform engineering teams on design, code, and remediation.
• Own Unified Security Review process for new product launches, vendor evaluations, and AI tooling — including custom penetration tests scoped to each review.
• Drive Security Engineering Risk Management Framework, for consistent risk classification and remediation tracking across product.
• Lead the Vulnerability Disclosure Program and security bug reporting workflow, from researcher intake through fix.
• Drive SOC2 and compliance‑related security remediation across product engineering, partnering with R&D leads on architectural fixes.
• Provide security review and guardrails for internal AI platforms and coding agents (LLM gateways, prompt/response controls, agent permissioning).
• Participate in a shared on‑call rotation for high‑severity production security incidents.

We’re looking for candidates who have:

• 8+ years of application security engineering experience.
• Strong production coding ability in at least one of Java (preferred), TypeScript/JavaScript, Python, or Go — enough to perform deep code review, write proof‑of‑concept exploits, and contribute fixes directly into product repos.
• Building security automation into CI/CD pipelines.
• Hands‑on penetration testing of production SaaS applications, including custom tests scoped to new product launches.
• Threat modeling, secure design reviews, and static/dynamic code analysis across the SDLC.
• Identifying and remediating common web application vulnerabilities (OWASP Top 10).
• Experience securing internal AI/LLM platforms and coding agents (model gateways, prompt/response controls, agent permissioning).

Nice to have experience:

• Experience in Web3, Blockchain or Digital Assets.
• Experience building AI workflows, agents, and guard‑railing.

Technologies we use:

• Cloud and containers: AWS, GCP, Kubernetes (EKS/GKE).
• Infrastructure‑as‑Code: Terraform.
• Security tooling: Wiz, SonarCloud, Burp, Cloudflare.
• CI/CD and source control: GitHub, GitHub Actions, Artifactory and related build/deploy tooling.
• Languages and scripting: Java, JavaScript, Python, Go.
• AI Coding Agents, Tooling, Systems.

You belong here. At Chainalysis, we believe that diversity of experience and thought makes us stronger. With both customers and employees around the world, we are committed to ensuring our team reflects the unique communities around us. We’re ensuring we keep learning by committing to continually revisit and reevaluate our diversity culture. We encourage applicants across any race, ethnicity, gender/gender expression, age, spirituality, ability, experience and more. If you need any accommodations to make our interview process more accessible to you due to a disability, don’t hesitate to let us know.