Sr. Application Security Engineer

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Sr. Application Security Engineer based in United States. This is a highly technical Application Security role focused on protecting software products, APIs, and cloud-native applications throughout the development lifecycle. You will work hands-on with Java, Python, and Go codebases to identify vulnerabilities, trace root causes, assess exploitability, and guide secure remediation. The role bridges Information Security and Engineering, giving you significant ownership while keeping you deeply connected to software development teams. You will help strengthen the Secure SDLC through security gates, threat modeling, automated controls, and developer-focused security workflows. The position also covers SAST, DAST, SCA, API security, dependency risk, cloud-native architectures, and hands-on vulnerability validation. Beyond addressing individual findings, you will build preventative controls and secure coding practices that reduce recurring vulnerability classes. This opportunity is ideal for an experienced Application Security professional who enjoys solving complex technical problems and influencing engineering teams through practical security expertise.