Coinflow

Security Engineer

Coinflow
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3 months ago
Chicago, IL, USAMid Level
H1B Sponsor

Base Salary

$145k - $195k/yr

Responsibilities

  • Stand up and operate the company’s SIEM and build a SecOps dashboard covering alerts, anomalies, authentication events, infrastructure changes, and audit-ready evidence.
  • Run continuous internal penetration tests against services, APIs, infrastructure, and embedded SDKs.
  • Use Claude Security and Claude Code to automate reconnaissance, fuzzing, code review, and exploit development.
  • Document security findings, drive remediation, and measure mean time to fix.
  • Own the vulnerability lifecycle, including CVE triage, Dependabot tuning, lockfile hygiene, and gated automatic merges for low-risk dependency upgrades.
  • Define secure-by-default patterns, review threat models, and integrate SAST, DAST, and secret scanning into CI.
  • Partner with compliance on evidence, controls, and monitoring artifacts required for PCI DSS, SOC 2, ISO 27001, and DORA audits.

Requirements

  • 4+ years of experience in security engineering, product security, or DevSecOps, ideally in fintech, payments, or another regulated environment.
  • Strong hands-on offensive security experience, including web application, API, cloud, and infrastructure penetration testing.
  • Production experience operating a SIEM and building useful security dashboards; examples include Datadog, Splunk, Elastic, and Panther.
  • Fluency in TypeScript and Node, plus familiarity with Rust, Go, or Python sufficient to review code and build security tooling.
  • Experience with vulnerability management at scale, including CVE triage, software composition analysis tooling, and dependency upgrade automation.
  • Comfort with AI-native tooling such as Claude Code and Claude Security, or genuine enthusiasm to learn it.
  • Bias toward shipping practical security controls quickly.

Benefits

  • Health and wellness benefits
  • 401(k) savings plan
  • Flexible time off
  • Eligible for an equity grant

Tech Stack

Categories

Coinflow

About Coinflow

51-200 employees

Coinflow (fka Coinflow Labs) is the next-generation payment service provider revolutionizing global financial infrastructure with stablecoins, AI-driven fraud prevention, and instant settlement. Coinflow enables businesses to grow faster with instant settlement, fraud & chargeback indemnity, global pay-in, multi-currency FX, and unified payouts—all in one intuitive platform. We serve marketplaces, fintechs, remittance providers, gaming platforms, and e-commerce merchants worldwide. Coinflow is proudly headquartered in Chicago, Illinois. Learn more @ coinflow.cash