Liftoff Jobs

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

Weekly digest

Week of 22 September 2025

15 new roles this week across 8 companies; the biggest movers: Anthropic (+3), Modal (+3), K2 Space (+3).

ML engineering

  1. Software Engineer, ML NetworkingAnthropic · SF Bay Area · $280K–850K · 48 weeks ago Develops Claude, an AI assistant, with research focused on AI safety and alignment

Infrastructure

  1. Performance Engineer, GPUAnthropic · SF Bay Area · $280K–850K · 48 weeks ago
  2. Datacenter Networking Technician, AI Compute Deployment - StargateOpenAI · SF Bay Area · $157K–221K · 48 weeks ago Develops AI systems including large language models like ChatGPT for research and commercial use

Software

  1. Customer EngineerModal · Series C · New York · $150K–220K · 48 weeks ago Modal is a cloud-based serverless computing platform designed for data science and machine learning teams
  2. Forward Deployed Engineer - SystemsModal · Series C · New York · $180K–240K · 48 weeks ago
  3. Software Engineer, Research Developer ProductivityOpenAI · SF Bay Area · $230K–325K · 48 weeks ago
  4. Future Engineering Mission Assignments - Keep Me In The LoopK2 Space · Series C · Remote · 48 weeks ago Builds high-power satellite buses designed for LEO, MEO, and GEO missions with 10x more power than constellati
  5. Automation EngineerPeriodic Labs · Seed · SF Bay Area · 48 weeks ago Builds AI scientists and autonomous laboratories to accelerate discovery in physical sciences

Product

  1. Product LeadInception Labs · Seed · SF Bay Area · $200K–350K · 47 weeks ago Diffusion-based language models that generate text 5-7x faster and 70% cheaper than traditional LLMs
  2. Program Manager, CommercialK2 Space · Series C · Los Angeles · $150K–250K · 48 weeks ago

Go-to-market

  1. Mid-Market Account Executive, IndustriesAnthropic · SF Bay Area · $290K–360K · 48 weeks ago
  2. Account Executive - EnterpriseModal · Series C · New York · $300K · 48 weeks ago
  3. Founding Account ExecutiveCrosby · Series B · New York City, NY · $150K–375K · 48 weeks ago AI-powered contract review for MSAs, DPAs, and NDAs with lawyer oversight and fixed pricing

Operations

  1. Future Operations Mission Assignments - Keep Me In The LoopK2 Space · Series C · Remote · 48 weeks ago

Other

  1. Audiobook Specialists (Freelance)ElevenLabs · Series C · United Kingdom · 48 weeks ago AI platform generating realistic speech, music, and sound effects across 70+ languages

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