Infrastructure Security Engineer
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Overview
Join Blockchain as a Senior Infrastructure Security Engineer to enhance security across our platforms and products. You'll design and implement security controls, collaborate with engineering teams, and respond to cyber threats in a dynamic environment. Blockchain is connecting the world to the future of finance. As the most trusted and fastest-growing global crypto company, it helps millions of people worldwide safely access cryptocurrency. Since its inception in 2011, Blockchain has earned the trust of over 90 million wallet holders and more than 40 million verified users, facilitating over $1 trillion in crypto transactions.
What You Will Do
- •Design, build, and implement security controls, automation, and processes across product, platform, and infrastructure environments.
- •Identify operational and technical security gaps, propose solutions, and drive engineering initiatives to close them.
- •Collaborate with the SRE and engineering teams to integrate security into CI/CD pipelines, deployment workflows, and cloud-native architectures.
- •Build automated tooling and services to enforce secure configurations, detect misconfigurations, and support continuous compliance.
- •Assist in threat modeling, design reviews, and architectural assessments for new and existing systems.
- •Contribute to internal security documentation, best practices, and developer guidance.
- •Participate in security incident response when engineering expertise or automation support is needed.
- •AI-Driven Innovation: Research, architect, and safely embed cutting-edge AI utilities and Large Language Model (LLM) agents directly into our secure infrastructure.
Compensation & Perks
- •Unlimited vacation policy; work hard and take time when you need it.
- •Unlimited books policy; order the technical resources you need or simply pick something up from our company library.
- •Apple equipment.
- •Full-time salary based on experience and meaningful equity in an industry-leading company.
- •Role based in our Paris office, with a mandatory in-office presence four days per week.
- •Work from Anywhere Policy: You can work remotely from anywhere in the world for up to 20 days per year.
What You Will Need
- •4+ years of experience in security engineering, platform security, or DevSecOps roles.
- •Hands-on experience implementing security controls and automation within cloud environments, GCP or AWS are preferred.
- •Proficiency in modern scripting, automation and infrastructure as code e.g. Python, Bash, Go, Terraform, or similar.
- •Ability to collaborate closely with engineering teams and translate security requirements into practical, scalable solutions.
- •Strong analytical and problem-solving skills, with a bias toward automation over manual workflows.
- •Curiosity, ownership, and a drive to continuously improve the security posture of complex systems.
- •Familiarity with some of the following: Cloudflare (DDoS protection, WAF), OSS SIEM tools (Splunk, Elastic, etc), Incident management platforms (e.g. Incident.io, PagerDuty)
- •Familiarity with at least one of the following CI/CD systems (Github Actions, Concourse, CircleCI)
- •Familiarity with maintaining HIDS systems (Wazuh preferred).