Weekly digest
Week of 20 October 2025
14 new roles this week across 7 companies; the biggest movers: Sierra (+5), Cartesia (+2), WithCoverage (+2).
Research
- Researcher, Evals — Cartesia Real-time speech and transcription models for voice agents with low-latency State Space Model architecture
- Researcher, Post Training — Cartesia
Infrastructure
- Software Engineer, Site Reliability (SRE) — Sierra Conversational AI platform that deploys customized agents across chat, voice, email, and SMS for customer supp
Software
- Member of Technical Staff - Software Engineer — Valthos AI systems that identify biological threats and design medical countermeasures in real time
- Exceptional Software Engineer — xAI Develops Grok, an AI platform offering reasoning, code, voice, image, and video capabilities through a unified
Hardware
- Principal Development Test Engineer — K2 Space Builds high-power satellite buses designed for LEO, MEO, and GEO missions with 10x more power than constellati
Go-to-market
- Mid-Market Account Executive — Serval AI-powered enterprise service management platform that automates employee requests, onboarding, and IT operati
Operations
- Vice President, P&C — WithCoverage Digital platform for managing insurance policies, claims, and risk for CPG brands and growing businesses
- Strategist, Agent Development (French speaking) — Sierra
- Strategist, Agent Development (French speaking) — Sierra
- Strategist, Agent Development (Spanish speaking) — Sierra
- Strategist, Agent Development (Spanish speaking) — Sierra
- Claims Support Specialist — WithCoverage
- GTM Recruiter — Serval
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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