Founding Member of Technical Staff - Post Training

Company: Architect
Location: Palo Alto
Posted on: April 1, 2026

Job Description:

What You'll Do As a Founding Member of the Technical Staff (RL) at Architect, you'll be at the forefront of post-training the AI models for chip design tasks like RTL code generation, verification, and architectural exploration. Responsible for co-designing and implementing the Reinforcement Learning environments and algorithms, Reward Models trainings and reward signal experiments. You will work at the intersection of cutting-edge research and production engineering for chip designs, implementing, scaling, and improving post-training techniques to enhance model capabilities and usability . Design, build, and run robust, efficient pipelines for model fine-tuning and evaluation, ensuring that theoretical performance translates into production-ready implementations. This is a hands-on, 0?1 role where you'll own the end-to-end RL workflow—from reward modeling and environment design to test-time optimization and scaling. Collaborate with research teams to translate emerging techniques into production-ready implementations and debug complex issues in training pipelines and model behavior. What We'd Like to See Qualifications & Skills: Degree: PhD in Computer Science, EECS, Mathematics, or a closely related field. Preferably, specialization in Machine Learning, Deep Learning, or Artificial Intelligence. Or BS/MS with a strong research engineering background. RL & Post-Training Expertise: Deep expertise in reinforcement learning and post-training, with a proven track record of taking models from research to real-world deployment. Model Training: Strong industry or research background building end-to-end ML pipelines. Experience RL and fine-tuning LLMs and code models for reasoning, tool use, and structured coding tasks. Systems Engineering: Strong software engineering skills with experience building complex ML systems. Comfortable working with large-scale distributed systems, high-performance computing, and distributed training frameworks (e.g., PyTorch, CUDA, QLoRA, ZeRO). Engineering Rigor: Adept at analyzing and debugging model training processes. Capable of balancing research exploration with engineering rigor and operational reliability. Execution: Fast-moving builder who can prototype, benchmark, and productionize training pipelines with tight feedback loops. Bonus: Worked on the post-training team at frontier labs like OpenAI, Anthropic, DeepMind, Mistral, MSL, Cohere, etc. Foundation in Electrical/Computer Engineering and chip-design or verification processes (not required, but a plus). Publications in top ML (NeurIPS, ICLR, ICML) or EDA (DAC, ICCAD, DVCon) venues. Experience as a Founding ML Engineer/Researcher or early hire at an AI deeptech startup. What We Offer Competitive salary and meaningful equity stake Fast-paced startup with autonomy and visible impact Cutting-edge AI-driven chip design challenges

Keywords: Architect, Pleasanton , Founding Member of Technical Staff - Post Training, Engineering , Palo Alto, California