Liftoff Jobs

A curated index of open roles at top-tier AI companies.

Weekly digest

Week of 29 June 2026

85 new roles this week across 26 companies; the biggest movers: Mistral AI (+18), K2 Space (+16), Anthropic (+9).

Research

  1. Member of Technical Staff - Research, Inference — Modal · Series C · New York · $150K–350K · 14 weeks ago Modal is a cloud-based serverless computing platform designed for data science and machine learning teams
  2. Member of Technical Staff - Research, Post-Training — Modal · Series C · New York · $150K–350K · 14 weeks ago
  3. Member of Technical Staff - Research — Armadin · Series A · SF Bay Area · 14 weeks ago armadin is an ai-native cybersecurity company focused on building the ultimate attacker
  4. Research Engineer, Computer Use — Anthropic · SF Bay Area · $500K–850K · 14 weeks ago Develops Claude, an AI assistant, with research focused on AI safety and alignment
  5. Research Engineer, Life Sciences — Anthropic · SF Bay Area · $350K–500K · 14 weeks ago

All research roles →

ML engineering

  1. Staff + Senior Software Engineer, Inference Deployment — Anthropic · SF Bay Area · $320K–485K · 14 weeks ago
  2. Research Engineer, Machine Learning — Mistral AI · Series D · Paris · 14 weeks ago Builds open-source AI models and platforms for deploying custom generative AI agents and applications
  3. Software Engineer, Machine Learning — Mercor · Series B · SF Bay Area · $160K–500K · 14 weeks ago Marketplace connecting domain experts with AI companies for task evaluation and model benchmarking

Applied AI

  1. Applied AI, Technical Lead, Forward Deployed AI Engineer — Mistral AI · Series D · Abu Dhabi, AE · 14 weeks ago
  2. Applied AI, Technical Lead, Forward Deployed AI Engineer - Montreal — Mistral AI · Series D · Montreal · 14 weeks ago
  3. Applied AI, Technical Lead, Forward Deployed AI Engineer - Paris — Mistral AI · Series D · Paris · 14 weeks ago
  4. Applied AI - Forward Deployed Engineer - Defense — Mistral AI · Series D · Paris · 14 weeks ago

All applied AI roles →

Infrastructure

  1. Senior Security Engineer (AI Safety), London, Lausanne — Isomorphic Laboratories · Series B · Lausanne, CH · 14 weeks ago Builds AI models to accelerate drug discovery and design novel medicines
  2. CyberSecurity, Platform Security Engineer — Mistral AI · Series D · Paris · 14 weeks ago
  3. フォワードデプロイド・インフラエンジニア (Forward Deployed Infrastructure Engineer) — Sierra · Late Stage · Tokyo · JPY 22,000,000–47,000,000/year · 14 weeks ago Conversational AI platform that deploys customized agents across chat, voice, email, and SMS for customer supp
  4. Software Engineer - Network (C++) — xAI · Late Stage · SF Bay Area · $180K–440K · 14 weeks ago Develops Grok, an AI platform offering reasoning, code, voice, image, and video capabilities through a unified

All infrastructure roles →

Data

  1. Data Engineer, Safeguards — Anthropic · SF Bay Area · $320K–405K · 14 weeks ago
  2. Code Data Annotation Quality Specialist — Mistral AI · Series D · Paris · 14 weeks ago
  3. Data Annotation Quality Specialist — Mistral AI · Series D · Paris · 14 weeks ago

Software

  1. Staff+ Software Engineer, Developer Acceleration — Anthropic · SF Bay Area · $405K–485K · 14 weeks ago
  2. Staff+ Software Engineer, Enterprise — Anthropic · SF Bay Area · $405K–485K · 14 weeks ago
  3. Staff+ Software Engineer, Enterprise Knowledge Work — Anthropic · SF Bay Area · $405K–485K · 14 weeks ago
  4. Staff+ Software Engineer, Experimentation — Anthropic · SF Bay Area · $405K–485K · 14 weeks ago
  5. Principal Crypto Engineer (TS/SCI) — K2 Space · Series D · Los Angeles · $160K–245K · 14 weeks ago Builds high-power satellite buses designed for LEO, MEO, and GEO missions with 10x more power than constellati
  6. Principal Flight Software Engineer — K2 Space · Series D · Seattle · $200K–240K · 14 weeks ago
  7. Manager, Web Engineering — Anthropic · SF Bay Area · $405K · 14 weeks ago
  8. Engineering Manager — Mistral AI · Series D · Paris · 14 weeks ago
  9. Software Engineering Manager, Database (SmithDB) — LangChain · Series B · SF Bay Area · 14 weeks ago Framework and platform for building, testing, deploying, and monitoring LLM-powered agents
  10. Senior Flight Software Engineer — K2 Space · Series D · Seattle · $160K–200K · 14 weeks ago

All software roles →

Hardware

  1. Director Instrumentation, Control, and Electrical – Power Conversion — Valar Atomics · Torrance, CA · $225K–300K · 14 weeks ago Builds high-temperature gas reactors for industrial power, hydrogen, and clean fuel production at scale
  2. Principal ASIC Design Verification Engineer — K2 Space · Series D · Seattle · $190K–285K · 14 weeks ago
  3. Principal ASIC Physical Design Engineer — K2 Space · Series D · Remote · $190K–280K · 14 weeks ago
  4. Principal ASIC Physical Design Engineer — K2 Space · Series D · Seattle · $190K–280K · 14 weeks ago
  5. Sr./Staff Mechanical Engineer — Mariana Minerals · Series B · SF Bay Area · $140K–175K · 14 weeks ago Software-first developer and operator of critical mineral projects for energy, AI, and defense
  6. Principal Electrical Engineer — Mach Industries · Series C · Huntington Beach, CA · $215K–255K · 14 weeks ago Develops low-cost autonomous aerospace and defense systems including drones, munitions, and propulsion compone
  7. Senior ASIC Design Verification Engineer — K2 Space · Series D · Seattle · $170K–250K · 14 weeks ago
  8. Senior ASIC Physical Design Engineer — K2 Space · Series D · Seattle · $170K–250K · 14 weeks ago
  9. Senior ASIC Physical Design Engineer — K2 Space · Series D · Remote · $170K–250K · 14 weeks ago
  10. Senior Firmware Engineer, Vehicle — K2 Space · Series D · Seattle · $160K–220K · 14 weeks ago
  11. Senior FPGA Engineer — K2 Space · Series D · Seattle · $120K–225K · 14 weeks ago
  12. Senior Mechanisms Engineer – Fluids & Pumps — K2 Space · Series D · Los Angeles · $140K–175K · 14 weeks ago

All hardware roles →

Product

  1. Product Manager, Studio — Mistral AI · Series D · Paris · 14 weeks ago
  2. Product Manager, Vibe — Mistral AI · Series D · Paris · 14 weeks ago
  3. Product Manager — Mercor · Series B · SF Bay Area · $180K–300K · 14 weeks ago

Go-to-market

  1. Regional VP - Strat — Serval · Series A · SF Bay Area · $400K–450K · 14 weeks ago AI-powered enterprise service management platform that automates employee requests, onboarding, and IT operati
  2. Strategic Account Lead — fal · Series D · SF Bay Area · $250K–300K · 14 weeks ago Serverless GPU platform for deploying and fine-tuning generative AI models at scale
  3. Social Media Manager — Perplexity · Series C · SF Bay Area · $110K–170K · 14 weeks ago AI-powered answer engine that provides conversational, source-backed responses to user queries
  4. Enterprise Account Executive (UK) — LangChain · Series B · London · 14 weeks ago
  5. Account Executive - Enterprise — ElevenLabs · Series C · SF Bay Area · 14 weeks ago AI platform generating realistic speech, music, and sound effects across 70+ languages

All go-to-market roles →

Operations

  1. Deputy Director, Safety & Security HQ — Mistral AI · Series D · Paris · 14 weeks ago
  2. Principal Launch Mission Manager — K2 Space · Series D · Los Angeles · $175K–200K · 14 weeks ago
  3. Staff Accountant — Mach Industries · Series C · Huntington Beach, CA · $75K–95K · 14 weeks ago
  4. Program Manager, Data Center Construction - Memphis — xAI · Late Stage · Southaven, MS · 14 weeks ago
  5. Internal Communications Manager — Perplexity · Series C · SF Bay Area · $130K–190K · 14 weeks ago
  6. Global Supply Chain Manager- Contract Manufacturing — DensityAI · SF Bay Area · $180K–250K · 14 weeks ago DensityAI is building a new generation of AI accelerators around a novel memory architecture
  7. Senior Editor — Perplexity · Series C · SF Bay Area · $210K–290K · 14 weeks ago
  8. Legal Counsel, US Patent Attorney — Mistral AI · Series D · SF Bay Area · 14 weeks ago

All operations roles →

General

  1. Seattle - Don't See Your Ideal Role? Apply Here. — K2 Space · Series D · Remote · 14 weeks ago
  2. General Application — Etched · Seed · SF Bay Area · 14 weeks ago Etched.ai is a technology startup developing specialized hardware for large language model (LLM) inference

Other

  1. Simulation Environment — Genesis AI · Seed · SF Bay Area · 14 weeks ago Develops general-purpose robots powered by foundation models for physical tasks across factories, hospitals, a

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