Principal Full Stack Engineer

To be a part of Virtuos means to be a creator.

At Virtuos, we harness the latest technologies to make games better and more immersive than ever before. We pride ourselves in constantly pushing the boundaries of possibility since our founding in 2004.

We’re seeking a lead Full‑Stack Engineer to lead a diverse team to design, implement, and optimize production‑grade tools and applications that support video game asset pipelines and production workflows.

• Agent loop & harness engineering
  • Own prompting strategy at scale: system prompt design, guardrails, mitigation of context poisoning and pollution, and management of hyperparameters (context window sizing, lost‑in‑the‑middle effects, temperature, top‑k).
  • Design tool interfaces for agents: MCP servers, structured inputs/outputs for context, and sub‑agent composition patterns.
  • Champion best practices for typed‑agent frameworks, ...