AI21 Labs
As of 30 October 2026, AI21 Labs has 1 open roles (0 new in 30 days), its data & ai team is hiring most, and its postings name DeepSpeed, JAX and Megatron-LM as the tools the team works in.
As of 30 October 2026 · refreshed daily · counts move as websites, DNS and career sites are re-read.
- Headquarters
- , , United States
- Employees
- 201-500 employees (linkedin)
- Sells to
- ai and software companies
- Certifications on site
- Site languages
- EN
- Career system
- Ownsite_html
AI21 Labs in one screen
Read from ai21.com: what the company does, the customers it names, the buyers we can actually see, and the companies that sell the same thing.
AI21 Labs is a technology company that develops AI agents, model training, and inference optimization for businesses. Its offerings include deep research agents, intelligent model routing, harness optimization, and token visibility tools. The company focuses on scaling agentic tasks and frontier model research.
Named on the site: ai and software companies.
Nearest companies by what they do, sell and whom they serve, 51+ employees. 594 scored.
What AI21 Labs says it runs
Tools named in the company's own postings as the team's systems, with the sentence that says so. What the website and DNS show is listed separately.
compute tradeoffs, and what a framework like FSDP, Megatron, or DeepSpeed is actually doing under the hood.• Distributed training: scaling training jobs across nodes, working with any of FSDP/Megatron/DeepSpeed/JAX-based stacks, diagnosing communication and scaling inefficiencies.compute tradeoffs, and what a framework like FSDP, Megatron, or DeepSpeed is actually doing under the hood.• 3+ years developing software for production systems, with strong Python and solid engineering fundamentals (testing, debugging, performance work, reading unfamiliar codebases).• Hands-on understanding of how modern LLM training works end to end in PyTorch: data/model/tensor/pipeline parallelism and when each applies, mixed precision, memory vs.compute tradeoffs, and what a framework like FSDP, Megatron, or DeepSpeed is actually doing under the hood.• Inference systems: serving frameworks (vLLM, SGLang, TensorRT-LLM), batching and scheduling, KV cache management, latency/throughput optimization.• Inference systems: serving frameworks (vLLM, SGLang, TensorRT-LLM), batching and scheduling, KV cache management, latency/throughput optimization.• Inference systems: serving frameworks (vLLM, SGLang, TensorRT-LLM), batching and scheduling, KV cache management, latency/throughput optimization.
• Bonus – experience working in a distributed, containerized GPU training environment (Slurm, Kubernetes, or similar): launching and debugging multi-node jobs, dealing with images, storage, and scheduling constraints.• Bonus – experience working in a distributed, containerized GPU training environment (Slurm, Kubernetes, or similar): launching and debugging multi-node jobs, dealing with images, storage, and scheduling constraints.offline training, rollout–trainer coupling, frameworks such as verl, slime, prime-RL, TRL, or in-house equivalents.Vendors whose code loads on ai21.com or whose records sit in its DNS. Page plumbing (libraries, fonts, consent banners) is left out.
1 open roles, 0 opened in 90 days
Read hourly from the company's career system. Open roles and new roles in the last 30 days, by team. Companies hiring data & ai in United States →
| open · new 30 d | |
|---|---|
| Data & AI | 1 · 0 |
What is changing, read from the postings
Intents are events the employer states about itself, each with the sentence and the posting it came from.
No change signals read in the current postings.
Sales, marketing and IT leaders by function. Add AI21 Labs to a monitor and get a webhook when a role opens, a tool appears or a signal is read.
Start free, no card. The first 20 are above; e-mails are verified at the mail server when you open them.
Companies like AI21 Labs
Nearest by what they do, what they sell and whom they sell to, 51+ employees. 6 of 594 scored.
From the company's own website
Quote the sentence with the date and the link. The numbers change daily; the link always shows the current ones.
AI21 Labs (, United States, 201-500 employees) has 1 open roles, 0 new in 30 days, and names 13 tools in its postings. (Breaknorm, 30 October 2026, https://breaknorm.co/company/ai21.com)
Read from the source, not self-reported
Every number on this page can be traced to a page we crawled or a posting we read. Full methodology →
- ProfileBuilt from ai21.com: summary, offerings, customers, certifications and contact points are extracted from its pages, with a confidence score per field.
- HiringRead hourly from the company's Ownsite_html career site; reposts collapse into one record.
- Tech stackTools the employer's own text names as the team's systems, with the quote; website scripts counted separately.
- HeadcountLinkedIn where known, otherwise estimated from the site.
AI21 Labs: questions
Does AI21 Labs use DeepSpeed?
Yes, by the company's own words: 1 posting name it, first seen 2026-10-26, in the data & ai team.
Is AI21 Labs hiring?
1 open roles as of 30 October 2026, 0 opened in the last 30 days and 0 closed. The largest team hiring is data & ai.
Where does this profile come from?
From ai21.com itself: we crawled it on 2026-08-02, built the profile on 2026-08-15, and read its career site (Ownsite_html) hourly since. Headcount is from LinkedIn.
Who should I write to at AI21 Labs?
The people are behind the login: decision makers by function, verified at the mail server when you open them. 0 public role addresses from the site are there too.
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The same data as a search, over MCP and the API, as bulk files, or pushed to you as it changes.
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