Senior Security Engineer, Platform Security

🔥 12 hours ago

🏄 California – Remote

🏄 California – Remote

💵 $217.8k - $326.8k / year

⏰ Full Time

🟠 Senior

🏗️ Platform Engineer

🦅 H1B Visa Sponsor

This company has sponsored H1B visas in the past.

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Block

WebsiteLinkedInAll Job Openings

10,000+ employees

Founded 1990

💼 Consulting

📣 Marketing

💳 Fintech

Consulting • Marketing • Fintech

Block is a technology company that aims to increase access to the global economy through its various brands. Square provides commerce and financial services designed for sellers, while Cash App offers an easy platform for spending, sending, and storing money. Afterpay allows customers to manage their spending over time. Additionally, TIDAL empowers artists by providing them with tools for entrepreneurship, and Bitkey and Proto focus on bitcoin and related services. Together, these services contribute to building an open financial system accessible to everyone.

📋 Description

• Build security guardrails across cloud, compute, and network infrastructure in AWS, GCP, and hybrid environments • Improve IAM and organization-level policies • Automate discovery and prioritization of misconfigurations and sensitive data exposures • Strengthen Kubernetes, container isolation, CI/CD secrets, image signing, and software supply chain controls • Develop network segmentation, ingress and egress policies, firewall controls, and edge protections • Build and operate production services, integrations, and infrastructure-as-code • Partner with platform and application teams to embed secure defaults • Prioritize improvements using security findings, operational telemetry, and business context • Participate in the Platform Security on-call rotation and turn recurring support needs into automation • Lead projects from design through rollout, document technical decisions, mentor, and participate in engineering reviews

🎯 Requirements

• 8+ years of experience as a software, infrastructure, or security engineer, including 4+ years securing production infrastructure at scale • Hands-on experience securing production infrastructure in AWS and/or GCP • Deep expertise in infrastructure security • Understanding of least privilege, workload isolation, network segmentation, and secure service communication • Strong programming skills in Python, Go, or a similar language • Experience with Terraform or similar infrastructure-as-code tools • Ability to deliver complex projects and balance security risk, reliability, and developer experience • Clear communication and troubleshooting skills • Experience using AI-assisted development tools while validating code, tests, and security implications

🏖️ Benefits

• Remote work • Medical insurance • Flexible time off • Retirement savings plans • Modern family planning • Reasonable accommodations throughout the recruitment process

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