> Markdown version of [/jobs/ext/3337967-application-security-engineer](https://www.wearedevelopers.com/jobs/ext/3337967-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). --- # Application Security Engineer - **Company:** Source Inc. - **Location:** New York, NY, United States - **Experience:** Expert - **Salary:** $180,000.0 - $190,000.0 - **Contract:** Permanent contract - **Skills:** Artificial Intelligence, Python (Programming Language), Open Source Technology, Open Web Application Security, Software Engineering, Large Language Models, Software Security, GWAPT - **Published:** September 3, 2026 - **Apply:** https://www.dice.com/job-detail/86b61138-8b6a-4b8d-9c3c-d46d6cfc8077 ## About the Role We need a candidate with hands on Python automation and good exp in AI/ML & LLM * 10-15+ years in software engineering and application security, with substantial hands-on development experience (not security-adjacent - you've shipped code). * Strong Python for automation and tooling. * Proficiency with Claude Code - you use it daily and know your way around its extensibility (skills, subagents, hooks, slash commands, and MCP integrations) to build reusable security workflows and automation, with a clear-eyed view of its strengths and failure modes. * Working understanding of AI agents and agentic frameworks, and the emerging security concerns around them (OWASP LLM Top 10, agent tool permissions, prompt injection, supply-chain risk in model/tooling). * Depth in secure SDLC, threat modeling, and common vulnerability classes (OWASP Top 10, API security, authn/authz). * The judgment to know when to automate, when to escalate, and when to just fix it yourself. Nice to have * Experience securing production LLM/agentic systems or building internal AI security tooling. * Contributions to open-source security tools. * Relevant certifications (OSCP, GWAPT, CSSLP) - helpful, not required.