Series B · AI Engineer
Series B AI Startup AI Engineer Jobs
There are currently 55 open AI Engineer jobs across 34 Series B AI startups. Every listing links straight to the company's official application page, deduplicated and refreshed daily.
55Open roles
34Companies hiring
Sep 15, 2026Last updated
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Open AI Engineer Roles at Series B AI Startups
| Role | Company | Stage | Location | Posted |
|---|---|---|---|---|
| AI Engineer | Vega | Series B | On -Site, Israel | Sep 15, 2026 |
| AI Engineer - Agents | Campfire | Series B | San Francisco | Sep 14, 2026 |
| Senior Applied AI Engineer | StackBlitz | Series B | Remote | Sep 14, 2026 |
| Staff Applied AI Engineer | StackBlitz | Series B | Remote | Sep 14, 2026 |
| AI Engineer, Internal Systems | Wispr Flow | Series B | Multiple locations | Sep 12, 2026 |
| AI/Agentic Engineer | Alice & Bob | Series B | Paris | Sep 11, 2026 |
| Senior Applied AI Engineer | Mintlify | Series B | San Francisco | Sep 10, 2026 |
| Lead Applied AI Engineer | LangChain | Series B | New York, NY | Sep 4, 2026 |
| AI Engineer | Armada | Series B | Bellevue Office, Sunset Corporate Campus | Sep 1, 2026 |
| Agentic AI Engineer / Software Engineer - AI Applications (Remote US) | Legion Intelligence | Series B | Remote USA | Sep 1, 2026 |
| AI Engineer, Enablement | LangChain | Series B | Multiple locations | Aug 26, 2026 |
| Senior AI Agent Engineer | Liberate | Series B | Multiple locations | Aug 24, 2026 |
| AI Agent Engineer | Liberate | Series B | Multiple locations | Aug 21, 2026 |
| AI Agent Engineer | Liberate | Series B | San Francisco, CA | Aug 21, 2026 |
| Applied AI Engineer | Mintlify | Series B | San Francisco | Aug 17, 2026 |
| Senior AI Agent Engineer | Liberate | Series B | Boston, MA, San Francisco | Jul 30, 2026 |
| Staff AI Agent Engineer | Liberate | Series B | Multiple locations | Jul 29, 2026 |
| Staff AI Agent Engineer | Liberate | Series B | San Francisco Bay Area | Jul 29, 2026 |
| Voice Agent Engineer (Full stack) | 11x | Series B | Location unspecified | Jul 28, 2026 |
| Senior AI Engineer | Glow | Series B | Tel Aviv | Jul 21, 2026 |
| Senior AI Engineer, Tools & Agents | Twelve Labs | Series B | San Francisco | Jul 20, 2026 |
| Senior AI Engineer | Doctronic | Series B | Multiple locations | Jul 17, 2026 |
| AI Engineer | Normal | Series B | Multiple locations | Jul 15, 2026 |
| Applied AI Engineer | OpenRouter | Series B | Remote (US) | Jul 15, 2026 |
| Staff Applied AI Engineer | Doss | Series B | San Francisco | Jul 13, 2026 |
| Staff AI Engineer | Bluefish Labs | Series B | Multiple locations | Jul 7, 2026 |
| Staff AI Engineer | Bluefish Labs | Series B | Multiple locations | Jul 7, 2026 |
| AI Engineer | Distyl | Series B | Multiple locations | Jun 18, 2026 |
| AI Engineer, Lead | Distyl | Series B | Multiple locations | Jun 18, 2026 |
| AI Engineer, Enterprise Lead | Distyl | Series B | Multiple locations | Jun 18, 2026 |
| AI Engineer, Evaluation | Distyl | Series B | Multiple locations | Jun 18, 2026 |
| AI Engineer | Patlytics | Series B | Multiple locations | Jun 17, 2026 |
| Forward Deployed Engineer, Lead - AI Engineer | Reflection AI | Series B | Seoul | Jun 9, 2026 |
| Forward Deployed Engineer - AI Engineer | Reflection AI | Series B | Seoul | Jun 9, 2026 |
| Forward Deployed AI Engineer | TENEX.AI | Series B | Multiple locations | Jun 3, 2026 |
| AI Engineer | Distyl | Series B | London, UK | May 28, 2026 |
| Backend / Systems Agentic Engineer (SG) | Arta | Series B | Singapore | May 26, 2026 |
| Full-Stack / Frontend Agentic Engineer | Arta | Series B | Singapore | May 26, 2026 |
| Senior Customer AI Engineer | Bluefish Labs | Series B | Multiple locations | May 19, 2026 |
| Agent Engineer, Agent Studio | Nooks | Series B | San Francisco | May 15, 2026 |
| Forward Deployed Engineer, Lead - AI Engineer | Reflection AI | Series B | Multiple locations | May 12, 2026 |
| Senior AI Engineer | Topline Pro | Series B | Boston, Massachusetts | May 12, 2026 |
| Applied AI Engineer | PermitFlow | Series B | New York City, NY | May 11, 2026 |
| Senior AI Engineer | Bluefish Labs | Series B | Multiple locations | Apr 14, 2026 |
| Senior AI Engineer | Bluefish Labs | Series B | Multiple locations | Apr 14, 2026 |
| AI Engineer | Solve Intelligence | Series B | London, England, United Kingdom | Apr 5, 2026 |
| Applied AI Engineer - Research & IP Indexing | Story | Series B | Palo Alto, CA, USA | Mar 31, 2026 |
| AI Engineer | Lightrun | Series B | Multiple locations | Feb 25, 2026 |
| Senior Sales AI Engineer | Bluefish Labs | Series B | Multiple locations | Feb 23, 2026 |
| Staff AI Engineer | GreenLite | Series B | New York City | Jan 12, 2026 |
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FAQ
How many AI Engineer jobs are open at Series B AI startups?
There are currently 55 open AI Engineer jobs across 34 Series B AI startups on Fast AI Jobs.
Why filter AI Engineer jobs by funding stage?
Funding stage signals company size, runway, and equity upside. Filtering to Series B startups narrows the list to AI Engineer roles at companies at a comparable point in their growth.
How often is this list updated?
Listings are refreshed daily from official company career pages and deduplicated by posting. Every link points to the original application page.