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Security Engineer - Network Edge Security

Block· 10404 Engineering - Information Security
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Hybrid (Bay Area, CA)$185.2k - $326.8kFull-timePosted 5d ago

About the role

Security Engineer role focused on building and operating tools and ML-driven analytics to improve API security posture and trustworthiness of traffic at the network edge, including rapid threat response and edge mitigations.

Responsibilities

  • Respond and mitigate emerging threats and attacks at our network edge by leveraging WAF rules, bot vendors, and other CDN-native technologies
  • Help build out infrastructure that gives us better inventory of our network edge security posture
  • Build out and maintain a near-real time streaming analytics data pipeline and application
  • Contribute to the evolution of our labeling and ML model development
  • Help manage and maintain our systems across build, deploy, and production monitoring
  • Be flexible with respect to computer languages as we use Java, Kotlin, Python, TypeScript, PySpark and others as needed or appropriate
  • Evaluate and build integrations with vendor systems that may be used in addition to in-house solutions
  • Develop and implement AI-driven capabilities to automatically classify and mitigate abusive traffic patterns
  • Significant experience with bot/fraud identification and mitigation systems is a strong plus

Qualifications

  • 5+ years of software or security engineering experience developing scalable production software incorporating testing, evaluation, and monitoring
  • Bachelor's degree in Computer Science or equivalent practical experience
  • Proficient in Java, Kotlin, Typescript, and Python
  • Proficient in data analysis using SQL and Spark
  • Experience implementing and maintaining applications in both a CDN (Cloudflare and Fastly) and Amazon Web Services (AWS) ecosystems
  • Familiarity with Snowflake, Databricks, and Datadog are a strong plus

Skills

Required:Software engineeringJavaKotlinTypeScriptPythonSQLSparkCDN exposure (Cloudflare, Fastly)AWS
Nice to have:ML / AI for security

Benefits

  • Remote work
  • medical insurance
  • flexible time off
  • retirement savings plans
  • modern family planning
  • inclusion and accommodations during recruitment
Last updated Oct 21, 2026. Interested? Apply on the company site.
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About Block

Block builds technology to increase access to the global economy.

Made up of Square, Cash App, Afterpay, TIDAL, Bitkey, and Proto, Block, Inc. builds technology to increase access to the global economy.

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