Weekly digest
Week of 14 September 2026
60 of 261 listed below
261 new roles this week across 45 companies; the biggest movers: OpenAI (+45), Anthropic (+25), K2 Space (+22).
Research
- Director of Model & Simulation — Valar Atomics Builds high-temperature gas reactors for industrial power, hydrogen, and clean fuel production at scale
- Research Lead, Tinker, Fine-tuning Science — Thinking Machines Lab Builds customizable, multimodal AI systems emphasizing human-AI collaboration and model interpretability
- Research Scientist - Environments, Data and Post-Training — Mercor Marketplace connecting domain experts with AI companies for task evaluation and model benchmarking
- Research, Finetuning Science — Thinking Machines Lab
ML engineering
- Member of Technical Staff, Data Science — Crosby AI-powered contract review for MSAs, DPAs, and NDAs with lawyer oversight and fixed pricing
- Member of Technical Staff, AI Products (Early Career - Industry) — Perplexity AI-powered answer engine that provides conversational, source-backed responses to user queries
- Inference Engineering and Product Lead — Modal Modal is a cloud-based serverless computing platform designed for data science and machine learning teams
Applied AI
- Member of Technical Staff, Beneficial Deployments — OpenEvidence AI-driven clinical decision support platform aggregating medical journal findings for healthcare providers
- Solution Operations Manager, Strategic Accounts — Mistral AI Builds open-source AI models and platforms for deploying custom generative AI agents and applications
- Applied AI Architect, Partnerships — Anthropic Develops Claude, an AI assistant, with research focused on AI safety and alignment
- Applied AI Architect, Partnerships — Anthropic
- Forward Deployed Engineer — Anthropic
Infrastructure
- Staff+ Software Engineer, Storage + Transfer — Anthropic
- Member of Technical Staff — Security — RadixArk Builds open-source inference and training infrastructure systems for AI applications
- MTS Lead, Product Security — Reflection AI Builds open AI models that enable anyone to control and shape intelligent systems
- Infrastructure Operations & Sustainability Lead — OpenAI Develops AI systems including large language models like ChatGPT for research and commercial use
- Security Operations Lead — Goodfire Goodfire is a San Francisco-based public benefit corporation focused on AI interpretability and safety
Data
- Data Engineering Manager, Growth & Revenue — OpenAI
- Recruiting Analytics Data Engineer — Anthropic
- Data Analytics Engineer — Fireworks AI Inference engine for deploying and fine-tuning open-source AI models with low-latency, high-throughput serving
Software
- Staff+ Software Engineer, Distributed Systems — Anthropic
- Staff PLM & Engineering Applications Engineer, Consumer Devices — OpenAI
- Member of Technical Staff - Prime Agent — Prime Intellect Platform for training, deploying, and evaluating custom AI models on distributed compute resources
- Member of Technical Staff (Search Core, Indexing & Data Pipeline Stream) — Perplexity
- Development Lead — OpenAI
Hardware
- Principal ASIC Package Design Engineer — K2 Space Builds high-power satellite buses designed for LEO, MEO, and GEO missions with 10x more power than constellati
- Principal ASIC Package Design Engineer — K2 Space
- Principal Electrical Manufacturing Engineer — K2 Space
- Principal Mechanisms Manufacturing Engineer — K2 Space
- Principal Mixed-Signal Design Engineer, Data Converters — K2 Space
- Principal Mixed-Signal Design Engineer, Data Converters — K2 Space
- Principal Nuclear Instrumentation & Controls Engineer – Hardware — Valar Atomics
- Staff Automation and Controls Engineer — Valar Atomics
- Staff Electrical Designer — Valar Atomics
Science
- Clinical Lead, Beneficial Deployments — OpenEvidence
- XRD Facility Manager — Periodic Labs Builds AI scientists and autonomous laboratories to accelerate discovery in physical sciences
- Equipment Engineer — Periodic Labs
Product
- Product Director, Studio — Mistral AI
- Staff Product Manager, Engineering & Construction — Mariana Minerals Software-first developer and operator of critical mineral projects for energy, AI, and defense
- Product Manager, Safe Access — Anthropic
Design
- Director of Brand — Together AI Together AI is a cloud-based platform specializing in artificial intelligence infrastructure and tools
- Senior Designer — Ornn Ornn is a financial technology platform specializing in AI compute risk management infrastructure
Go-to-market
- Director of International Growth - Australia — Saronic Saronic Technologies develops advanced autonomous surface vessels for naval and maritime applications
- Head of EMEA Sales — Baseten Platform for deploying and serving machine learning models with high-performance inference at scale
- Account Director, Digital Natives - France — OpenAI
- Partner Director, HCL, Wipro & Cognizant — OpenAI
- Director of Global Growth Marketing and Sales Enablement — xAI Develops Grok, an AI platform offering reasoning, code, voice, image, and video capabilities through a unified
- Customer Success Manager, Commercial — Anthropic
- Customer Success Manager, Public Sector (National Security) — Anthropic
- Manager, Customer Success - Commercial — Anthropic
Operations
- Head of AI Enabled Business Systems — Fireworks AI
- Head of Finance - Data Centers — OpenAI
- Chief of Staff to Head of Engagement Management — Mercor
- Chief of Staff, Delivery Operations — Mercor
- Director, Site Operations — xAI
- VP, Global Health, Beneficial Deployments — OpenEvidence
- Vice President of Finance — Mariana Minerals
- Sr./Staff Architect — Mariana Minerals
- National Security Partnerships Lead, Intelligence and International Security — Anthropic
General
Every line links to the role on Liftoff Jobs, and from there to the company's own board. · Past issues · Search the whole index
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