Application Security Engineer (Source Code Review), Contract

Invadel is a New York City penetration testing firm. Every engagement is fixed-scope and fixed-price, agreed in writing, with public prices at invadel.com/pricing and a free retest. This is a contract role, remote within the United States, paid per engagement; a review is typically four to eight days on a defined set of repositories, followed by a retest of the fixes. What you will do: triage static analysis output and remove false positives before a client sees them; manually review authentication, authorization, input handling, cryptography, secrets management and third-party dependency use; trace data flows across services to find flaws that only appear in combination; write findings with file and line references, proof of exploitability where safe, and remediation code where it helps; retest fixes and update the report. What we need: four or more years split between software engineering and application security, with production code review as a regular part of the work; reading fluency in at least three of JavaScript and TypeScript, Python, Java or Kotlin, C#, Go, PHP, Ruby, Swift; based in the United States with authorization to work here; reports written for engineers and auditors, with a redacted sample report as part of the application; two professional references. Nice to have: SAST tooling at scale and reviewing AI-generated code; mobile codebases or infrastructure as code; contributions to open-source security tooling. Full description, pay range and application: