Liftoff Jobs

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

Weekly digest

Week of 20 October 2025

18 new roles this week across 11 companies; the biggest movers: Sierra (+5), Cartesia (+2), WithCoverage (+2).

Research

  1. Researcher, EvalsCartesia · Series A · SF Bay Area · $220K–350K · 44 weeks ago Real-time speech and transcription models for voice agents with low-latency State Space Model architecture
  2. Researcher, Post TrainingCartesia · Series A · SF Bay Area · $180K–350K · 44 weeks ago

Infrastructure

  1. Software Engineer, Site Reliability (SRE)Sierra · Late Stage · SF Bay Area · $230K–390K · 44 weeks ago Conversational AI platform that deploys customized agents across chat, voice, email, and SMS for customer supp

Software

  1. Principal Development Test EngineerK2 Space · Series C · Los Angeles · $175K–200K · 44 weeks ago Builds high-power satellite buses designed for LEO, MEO, and GEO missions with 10x more power than constellati
  2. Member of Technical Staff - Multi-Modal, VisionLiquid AI · Seed · SF Bay Area · 44 weeks ago Builds efficient foundation models that run on-device across phones, cars, and edge hardware without sending d
  3. Member of Technical Staff (Rust Engineer, Search)Perplexity · Series C · Belgrade · 44 weeks ago AI-powered answer engine that provides conversational, source-backed responses to user queries
  4. Member of Technical Staff - Software EngineerValthos · Seed · New York · 43 weeks ago AI systems that identify biological threats and design medical countermeasures in real time
  5. Senior Fullstack Engineer, Growth & MonetizationLangChain · Series B · SF Bay Area · 44 weeks ago Framework and platform for building, testing, deploying, and monitoring LLM-powered agents
  6. Exceptional Software EngineerxAI · Late Stage · SF Bay Area · $180K–440K · 44 weeks ago Develops Grok, an AI platform offering reasoning, code, voice, image, and video capabilities through a unified

Go-to-market

  1. Enterprise Account Executive, State & Local SalesAnthropic · Remote-Friendly (Travel-Required) · Remote · $290K–360K · 44 weeks ago Develops Claude, an AI assistant, with research focused on AI safety and alignment
  2. GTM RecruiterServal · Series A · SF Bay Area · $125K–200K · 44 weeks ago AI-powered enterprise service management platform that automates employee requests, onboarding, and IT operati
  3. Mid-Market Account ExecutiveServal · Series A · SF Bay Area · $250K · 44 weeks ago

Other

  1. Lead Risk AdvisorWithCoverage · Series B · New York · $140K–190K · 44 weeks ago Digital platform for managing insurance policies, claims, and risk for CPG brands and growing businesses
  2. Strategist, Agent Development (French speaking)Sierra · Late Stage · Paris · EUR 125,000–180,000/year · 43 weeks ago
  3. Strategist, Agent Development (French speaking)Sierra · Late Stage · London · GBP 150,000–245,000/year · 44 weeks ago
  4. Strategist, Agent Development (Spanish speaking)Sierra · Late Stage · London · GBP 150,000–245,000/year · 44 weeks ago
  5. Strategist, Agent Development (Spanish speaking)Sierra · Late Stage · Madrid, ES · 43 weeks ago
  6. Claims Support SpecialistWithCoverage · Series B · Remote · $60K–75K · 44 weeks ago

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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