Hot AI Infra startups hiring

First on the list in November 2026: Mecka AI, Fireworks AI and Together AI.

Latest to raise: Mecka AI, which raised $60M Series B in October 2026. Updated November 11, 2026, using Saywise's data on startup funding and open roles. See how we rank them.

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The top 25, November 2026

1
Mecka AI
Raised $60M Series B in October 2026
12 new roles in 30 days
Backed by Sequoia Capital
Investors: Sequoia Capital
39open roles$70k – $300k a year
2
Fireworks AI
Run AI faster, more efficiently, and on your own terms
Raised $1.5B Series D in July 2026
26 new roles in 30 days
Backed by Lightspeed Venture Partners
Investors: Lightspeed Venture Partners, Index Ventures, Atreides Management, Evantic Capital
58open roles$105k – $400k a year
3
Together AI
Accelerate inference, model shaping, and pre-training on a research-optimized platform.
Raised $800M Series C in July 2026
15 new roles in 30 days
Backed by General Catalyst
Investors: General Catalyst, Alumni Ventures, Aramco Ventures, Prosperity7 Ventures
57open roles$120k – $350k a year

4
SambaNova
Transforming AI with efficiency, security, and sovereignty - driven by our relentless pursuit of intelligence.
Raised $1B Series F in July 2026
15 new roles in 30 days
Backed by General Atlantic
Investors: General Atlantic
53 open roles$50k – $350k a year
5
Gimlet Labs
An applied research lab dedicated to building next-generation AI infrastructure.
Raised $300M Series B in September 2026
5 new roles in 30 days
Backed by Andreessen Horowitz
Investors: Andreessen Horowitz
16 open roles$140k – $400k a year
6
Crusoe
The AI factory company.
Raised $3.9B Series F in September 2026
124 new roles in 30 days
357 open roles$70k – $385k a year
7
HUD
Hud is the first Runtime Code Sensor designed specifically to make AI-generated code production-safe by default.
Raised $16M Series A in June 2026
27 new roles in 30 days
YC W25
Investors: Y Combinator, Standard Capital
32 open roles$100k – $295k a year
8
Preference Model
Raised $16M Seed in October 2026
5 new roles in 30 days
Backed by Andreessen Horowitz
Investors: Andreessen Horowitz
6 open roles$165k – $350k a year
9
SiMa.ai
Scaling Physical AI
Raised $150M Series C in September 2026
11 new roles in 30 days
Investors: Adage Capital Management, Alter Venture Partners, Amplify, Amplify Partners
30 open roles$105k – $358k a year
10
Deepgram
Powering the Voice AI economy—trusted by 200,000+ developers to build low-latency, enterprise-grade Voice AI at scale.
Raised a Series C round in August 2026
9 new roles in 30 days
YC W16
Investors: Y Combinator, Tiger Global Management, Alkeon, AVP
42 open roles$50k – $361k a year
11
OpenRouter
Discover and use the latest LLMs.
Raised $113M Series B in May 2026
6 new roles in 30 days
Backed by Andreessen Horowitz
Investors: Andreessen Horowitz, Menlo Ventures, CapitalG
13 open roles$115k – $325k a year
12
Ayar Labs
Transforming AI Architecture with Co-Packaged Optics
Raised $150M Other in September 2026
18 new roles in 30 days
59 open roles$130k – $304k a year
13
Snorkel AI
Expert Data.
Raised $350M Series E in September 2026
8 new roles in 30 days
Investors: Accenture Ventures, S32
39 open roles$125k – $444k a year
14
FieldAI
Field-Deployed General Robot Intelligence
Raised $700M in October 2026
7 new roles in 30 days
83 open roles$60k – $300k a year
15
Vals AI
Evaluating Large Language Models.
Raised $40M Series A in August 2026
3 new roles in 30 days
Backed by Andreessen Horowitz
Investors: Andreessen Horowitz
6 open roles$130k – $185k a year
16
Modal Labs
Python library
Raised $355M Series C in May 2026
3 new roles in 30 days
YC W16
Investors: Y Combinator, General Catalyst, Redpoint Ventures
35 open roles$115k – $400k a year
17
Efficient Computer
The most energy-efficient general purpose processors ever made.
Raised $97M Series B in September 2026
6 new roles in 30 days
Investors: TQ Ventures
22 open roles$85k – $275k a year
18
Parallel Web Systems
Infrastructure for intelligence on the web.
Raised $100M Series B in April 2026
11 new roles in 30 days
Backed by Sequoia Capital
Investors: Sequoia Capital, Khosla Ventures
19 open roles$135k – $400k a year
19
Idler
Hill-climb any benchmark, for any model, in any domain, using our RL environments.
Raised $9M Seed in August 2026
2 new roles in 30 days
YC S25
Investors: Y Combinator, Paradigm
6 open roles$125k – $500k a year
20
AfterQuery
Applied research lab curating data solutions to accelerate foundation model development.
Raised a Series B round in September 2026
5 new roles in 30 days
YC W25
Investors: Y Combinator
45 open roles$84k – $550k a year
21
Raindrop
We create Marketing People Love.
Raised $35M Series A in September 2026
1 new role in 30 days
YC W24
Investors: Y Combinator, CRV
8 open roles$70k – $300k a year
22
Mercor
Organizing human intelligence to power the AI economy.
Raised $500M Series D in August 2026
28 new roles in 30 days
Investors: Felicis
285 open roles$55k – $500k a year
23
SandboxAQ
Leveraging AQ - the powerful compound effects of AI + Quantum technology
Raised $500M Other in June 2026
15 new roles in 30 days
29 open roles$93k – $420k a year
24
Prime Intellect
The Open Superintelligence Stack
Raised $130M Series A in July 2026
17 new roles in 30 days
Investors: Radical Ventures
28 open roles$90k – $350k a year
25
Firecrawl
Supercharge your AI agents with data from the web and beyond.
Raised $75M Series B in September 2026
YC S22
Investors: Y Combinator, Smash Capital
26 open roles$148k – $453k a year

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