[Remote] Founding Engineer

Note: The job is a remote job and is open to candidates in USA. Convexia is a startup focused on building innovative frameworks and evaluation systems. As a Founding Engineer, you will be responsible for developing core systems, managing product delivery, and collaborating on strategic initiatives to enhance system performance and reliability. Responsibilities Build and iterate on agentic orchestration frameworks: Develop robust systems for tool calling, routing, memory management, guardrails, provenance tracking, and failure recovery to ensure seamless agent performance Design evaluation and backtesting harnesses: Create comprehensive tools for our agents and PoS model, including offline replay, regression testing, and confidence calibration to validate and refine system accuracy Own end-to-end product delivery: Manage the full lifecycle from data ingestion and processing to user experience and system reliability, incorporating tight feedback loops from customers to drive rapid improvements Enhance system performance and correctness: Tackle challenges with messy, real-world inputs like PDFs, tables, slides, non-English sources, and conflicting evidence to deliver reliable results Partner with founders on strategy: Collaborate on the product roadmap, customer integrations, and technical direction as we transition from a platform to owning and advancing key assets Skills You've built and shipped complex backend or ML systems in production, with a bias toward reliability You obsess over evaluation, observability, and failure modes You thrive in ambiguity and move fast without waiting for permission You communicate clearly and take ownership in low-process environments You've been underestimated before You've been told you're 'too intense' You get bored in the absence hard problems Hacker house vibes appeal to you Company Overview Convexia is an AI-native platform that finds and evaluates overlooked drug assets faster than anyone else. It was founded in 2025, and is headquartered in San Francisco, California, USA, with a workforce of 2-10 employees. Its website is