Senior Director of Regulatory Affairs

Own the full IND lifecycle for Pathos's oncology pipeline. Author and submit IND amendments, prepare annual reports, lead DSUR development in collaboration with safety, biostatistics, and data management, and maintain IB currency across all active studies. Oversee ClinicalTrials.gov listings and ensure all regulatory commitments and timelines are tracked and met.

Oversee eCTD publishing and submission infrastructure, managing external publishing vendors where needed. Set quality standards for all regulatory submissions leaving Pathos and ensure every package is accurate, complete, and inspection ready. Build and maintain the SOPs, controlled document systems, and records management infrastructure that support a growing pipeline.

Work with Pathos's software and machine learning engineering teams to build AI-powered systems that accelerate regulatory execution. Direct AI agents to generate first drafts of regulatory documents, flag inconsistencies, and surface relevant precedent. Apply your regulatory judgment as the expert reviewer who shapes, finalizes, and takes accountability for every output. As the function scales, your ability to orchestrate these systems will determine how many programs you can support simultaneously.

Serve as Pathos's primary sponsor representative with FDA across all active programs. Lead preparation of pre-IND meeting requests, Type B and Type C meeting packages, and End of Phase meetings. Engage proactively and frequently with FDA, particularly around Pathos's AI-enabled development model and novel trial designs.

• 10 or more years of regulatory affairs experience in biotech or pharmaceutical development, with deep oncology experience
• Direct IND lifecycle management experience: you have owned INDs from filing through amendment cycles, authored DSURs, prepared IB updates, and built FDA meeting packages as the primary author
• Proven FDA sponsor representative experience: you have managed the agency relationship directly across multiple programs, not as a supporting contributor but as the accountable lead
• Experience as a first or early regulatory hire at a small or growth-stage biotech where you built processes and infrastructure without a large team behind you
• Comfort working alongside software and ML engineers to build and iterate on systems: you do not need to be an engineer, but you need to be genuinely curious about how these tools work and excited to direct them
• A belief that AI-assisted regulatory workflows represent the future of how this function operates, and a willingness to operate that way now rather than eventually
• Active engagement with the evolving regulatory landscape for AI-enabled drug development, including FDA guidance on AI in drug development and its implications for how Pathos operates
• Familiarity with precision medicine and biomarker-driven oncology programs is a strong plus
• Familiarity with innovative trial designs or AI-enabled development approaches

This is a hybrid role, requiring up to 3 days per week onsite, in our NYC Headquarters.