Foundation (must-have software-engineering baseline)
+ years of professional experience building production applications, with recent depth in AI/LLM-based or generative AI systems. Strong proficiency in at least one of Python, TypeScript, or JavaScript - Python expertise is required for our stack, including FastAPI, Pydantic, SQLAlchemy, or equivalent. Solid database skills across relational systems such as PostgreSQL and non-relational systems such as MongoDB or vector databases; familiar with caching and queues where applicable. Working knowledge of secure API design, authentication, authorization, and input validation. Comfortable with Git, GitLab CI/CD, and Docker/containers. Proven testing mindset and experience with automated test suites such as pytest. Agent loop / harness engineering Demonstrated experience designing and operating agent loops in production - not just prompt-tuning a chatbot. Deep, practical understanding of prompting, context engineering, guardrails, context poisoning or pollution, and the parameters that govern model behavior. Hands-on experience integrating tools into agents through MCP, structured inputs/outputs, or sub-agent orchestration. Experience with an agent development framework such as LangChain, LangGraph, Claude Agent SDK, Pydantic AI, or comparable. Strong debugging instincts for non-deterministic systems and experience using practical logging, tracing, and evaluation techniques. Hands-on experience building generative image, video, 3D, or multimodal workflows. Experience with ComfyUI or a comparable workflow orchestration system. Familiarity with model families such as Stable Diffusion, FLUX, Qwen, or comparable open-source or hosted generative models. Experience with model customization or conditioning techniques such as LoRA, ControlNet, adapters, inpainting, pose, depth, reference images, or segmentation. Ability to assess generated content for quality,