> Markdown version of [/jobs/ext/3870309-staff-application-security-engineer](https://www.wearedevelopers.com/jobs/ext/3870309-staff-application-security-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Staff Application Security Engineer - **Company:** Temporal Technologies Inc. - **Location:** United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Kubernetes Security, Artificial Intelligence, Applications Architecture, Software System Penetration Testing, User Authentication, Cloud Computing, Cyber Security, Information Leak Prevention, Distributed Systems, Open Source Technology, Open Web Application Security, Role-Based Access Control, Secure Coding, Software Engineering, Scripting, Large Language Models, Software Security, Information Technology, Production Code, Static Application Security Testing, Programming Languages, Dynamic Application Security Testing - **Published:** October 22, 2026 - **Apply:** https://www.careerbuilder.com/job-details/staff-application-security-engineer--4084613e-1668-4315-aac2-aa332baa8420 ## About the Role Applications Security, Software Engineering, Software Engineering, Sales Pipeline, Applications Security, Cloud Computing, Artificial Intelligence (AI), Product Engineering, Threat Modeling, Threat and risk analysis (TRA), * Bachelor's degree in Computer Science, Cybersecurity, or a related field (or equivalent experience). * 7+ years in application or product security or a related role. * Proven partnership with engineering teams, bringing security expertise to the planning and development process. * Ability to write production-quality code in at least one programming language, with a history of development beyond simple scripting. * Knowledge of encryption, authentication, and secure communication protocols. * Familiarity with tools like SAST, DAST, and penetration testing frameworks. * A deep understanding of application architecture and design principles, ability to effectively identify vulnerabilities across multiple programming languages * Excellent communication and ability to explain complex security concepts to non-technical stakeholders. * Kubernetes security posture management and auditing, including workload hardening, RBAC design, and admission control. * Demonstrated experience with multi-tenant security architecture, including data plane isolation, control plane hardening, and cross-tenant data leakage prevention. Nice to Have * Distributed computing and related vulnerability experience. * Familiarity with Go. * Running a Security Champions program. * Open Source automation or automation projects. * Expertise in other areas of security. * Security conference talks or published research. ## Description * Collaborate with product and engineering teams to integrate security principles into the design and architecture of products. * Lead complex threat modeling and risk assessments to identify vulnerabilities and potential attack vectors across the full product surface. * Drive strategy, influence architecture, and set direction for security across multiple teams or org-wide. * Manage the Secure Development pipeline including code security and 3rd party library supply chain security. * Stay current on emerging standards and guidance (e.g. OWASP Top 10 for LLMs, MCP security specifications) and translate these into actionable internal policy. * Own responsibility disclosed vulnerabilities in both Cloud and Open Source products. * Able to participate in on-call rotation.