Founding AI Engineer — Agent Systems Architect

Vincer; Massachusetts; On-site; USD 180,000 - 280,000; Full time

Job summary

Vincer is building a voice-first AI system and seeks a Founding Software Engineer to own the intelligence layer, including agent architecture, orchestration, evaluation, grounding, and guardrails. You will shape how we build AI for life sciences customers and decide the roadmap with founders and advisors.

You will operate in a small, highly collaborative team with broad ownership and direct impact. You are excited about shipping production AI, working across models and data sources, and

Qualifications

• 5+ years of full-time software engineering with hands-on AI systems ownership in production.
• Experience designing or working with agentic systems: routing, tools, retrieval, context management, multi-step workflows.
• Experience with multiple model providers and evaluating agent tooling effectiveness.

Responsibilities

• Own Vincer's intelligence layer: agent architecture, orchestration, retrieval, grounding, guardrails, and AI quality.
• Develop and improve agent systems that decide when to act, route, or escalate; ensure latency and cost efficiency.
• Build evaluation, logging, and monitoring to expose agent quality and detect regressions.
• Collaborate with co-founders and advisors to shape AI direction and roadmap.

Skills

AI systems

Agentic systems

Production ownership

System evaluation

Job description

Vincer is building a voice-first AI system and seeks a Founding Software Engineer to own the intelligence layer, including agent architecture, orchestration, evaluation, grounding, and guardrails. You will shape how we build AI for life sciences customers and decide the roadmap with founders and advisors.

You will operate in a small, highly collaborative team with broad ownership and direct impact. You are excited about shipping production AI, working across models and data sources, and