xAI · 1 day ago
Member of Technical Staff - Multimodal Interactions Post-training
Palo Alto, CA
Full-time
Onsite
Mid, Senior Level
$180K/yr - $440K/yrxAI is focused on creating AI systems that understand the universe and aid humanity. The Member of Technical Staff will work on enhancing model capabilities for real-time human-AI interactions and develop novel reinforcement learning algorithms for interactive behaviors.
Artificial Intelligence (AI)Foundational AIGenerative AIInformation TechnologyMachine Learning
Responsibilities
Enhance model capabilities in interactive tool calling, structured reasoning, and model orchestration, with a focus on real-time human-AI interactions and agentic decision-making
Enhancing data mixtures through data collection pipelines and generation techniques optimized for interactive human-AI collaborations and orchestration
Developing generalizable reward models and novel reinforcement learning algorithms to promote emergent interactive behaviors, enabling models to guide heavier backend systems
Designing robust evaluations that capture real-world interactive dynamics, human-AI synergy, and orchestration across diverse backend models, scales, and specializations
Implementing large-scale training frameworks for models that integrate and orchestrate backend models of varying sizes, skills, and capabilities in interactive, agentic environments
Collaborating with pre-training, reasoning, data, multimodal, applied, and product teams to expand interactive AI frontiers
Qualification
Required
Expert in ML and training large language models
Track record in leading studies that significantly impacts AI advancement
Experience in data-driven large language model behavior improvements
Experience in advanced reinforcement learning or inference-time search techniques
Experience in developing benchmarks or large-scale distributed machine learning systems
Experience in model optimizations under complex setups (e.g., multi-modality, multi-context, multi-agent, long-horizon tasks, diverse user preference/feedback)
Experience in model routing
Strong communication skills
Strong work ethic and prioritization skills
Hands-on approach and ability to contribute directly to the company's mission
Benefits
Equity
Comprehensive medical, vision, and dental coverage
Access to a 401(k) retirement plan
Short & long-term disability insurance
Life insurance
Various other discounts and perks
Company
xAI
XAI is an artificial intelligence startup that develops AI solutions and tools to enhance reasoning and search capabilities.
Founded in 2023
1001-5000 employees
H1B Sponsorship
xAI has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (1)
Funding
Current Stage
Late StageTotal Funding
$42.73BKey Investors
Neptune Digital AssetsSpaceXMorgan Stanley
2026-01-06Series E· $20B
2025-12-11Secondary Market· $0.3M
2025-07-13Corporate Round· $5.32B
Leadership Team
Greg Yang
Co-Founder
Yuhuai Wu
Co-Founder
Recent News
2026-01-25
2026-01-24
Company data provided by crunchbase