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Senior Software Engineer, Agentic Systems

US, Remote🌐 Remote💼 Full-time💰 $169,000–$169,000🗓 2026-06-23 → 2026-09-26

Core

Building an autonomous, black-box web application penetration tester agent that crawls and attacks real production websites to find vulnerabilities like broken access control, injection, XSS, SSRF, and SSTI.

Role type

Senior IC software engineer (autonomous security agents)

Builds

Autonomous attack-agent layer, tooling, evaluation infrastructure, and LLM inference pipelines for production pentesting.

Domain

Cybersecurity / Offensive Security / LLM Agents

Deliverable

production ML models | product features

Required skills

Python, LLM-powered application development, tool use/function calling, structured outputs, multi-step orchestration, production LLM reliability, evaluation harness design, prompt and context engineering, software testing, observability

Preferred skills

Web application security knowledge (IDOR/BOLA, SQLi, XSS, SSRF, SSTI), agent framework experience, graph data models (Neo4j), agent fine-tuning or RL (SFT, GRPO), CTF/bug bounty/pentesting background

Technologies

AWS Bedrock, Python, Neo4j

Responsibilities

Build and evolve the agent harness and orchestration loop; design tools and validation layers for reliable probing; translate offensive expertise into repeatable agent capabilities; own evaluation infrastructure and benchmark suites; manage LLM inference in production; ensure production-safety and no-false-positives

Seniority

Senior, hands-on IC

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