Cosine tech stack
Cosine builds mostly with Python, Go, JavaScript, Node JS. Its stack also includes Kubernetes, PyTorch, GCP, Apache Iceberg. Python is named in 3 of the 8 job postings Cosine published in the last 12 months (38%). Counted by Alion from the job postings of Cosine, updated Oct 20, 2026.
What programming languages does Cosine use?
Python is named in 38% of job postings at Cosine, followed by Go (13%), JavaScript (13%), Node JS (13%).
What frameworks and libraries does Cosine use?
PyTorch is named in 38% of job postings at Cosine, followed by DeepSpeed (13%), FSDP (13%), JAX (13%).
PyTorch
3 38%
DeepSpeed
1 13%
JAX
1 13%
React.js
1 13%
Svelte
1 13%
TensorFlow
1 13%
Vue.js
1 13%
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What databases does Cosine use?
Apache Iceberg is named in 13% of job postings at Cosine, followed by DuckDB (13%).
Apache Iceberg
1 13%
DuckDB
1 13%
What cloud and platforms does Cosine use?
Kubernetes is named in 38% of job postings at Cosine, followed by GCP (25%), AWS (13%), Azure (13%).
Kubernetes
3 38%
GCP
2 25%
AWS
1 13%
Azure
1 13%
CUDA Toolkit
1 13%
Datadog
1 13%
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What developer tools does Cosine use?
Git is named in 38% of job postings at Cosine, followed by Docker (25%), Rest API (13%), SLURM (13%).
What AI and ML technologies does Cosine use?
LLM is named in 25% of job postings at Cosine.
LLM
2 25%
Which engineering practices does Cosine ask for?
Machine Learning is named in 63% of job postings at Cosine, followed by AI Agents (25%), Fine-tuning (25%), LLM Evaluation (25%).
AI Agents
2 25%
Fine-tuning
2 25%
Reinforcement Learning
2 25%
CI/CD
2 25%
Multimodal AI
1 13%
Show all (17)
What does each Cosine team work with?
The technologies each team's postings require most often, with the number of postings that require them.
AI/ML
3 postingsHow does your stack fit Cosine?
How is the Cosine stack changing?
Read from the dates of the postings themselves: a technology is new when the first posting that names it appeared in the last six months, rising or falling when its share of postings moved between the last two quarters.
How modern is the Cosine stack?
Cosine scores 74 out of 100 (Modern). The score averages how current each technology in the stack is and adds weight for AI adoption. AI technologies in the stack: 1; legacy ones: 0.
How common is the Cosine stack in its industry?
Share of the 1,385 companies in the same industries, whose stack Alion knows, that use each technology.
Companies with a stack like Cosine
Questions about the Cosine tech stack
What programming languages does Cosine use?
The languages named in Cosine job postings are Python (38%), Go (13%), JavaScript (13%), Node JS (13%), SQL (13%), as a share of the 8 postings of the last 12 months.
Does Cosine use PyTorch?
Yes. PyTorch is named in 3 of 8 job postings (38%) and required in 3 of them.
What cloud and platforms does Cosine use?
The cloud and platforms named in Cosine job postings are Kubernetes (3), GCP (2), AWS (1) (postings in brackets).
What skills do you need for a AI/ML job at Cosine?
AI/ML postings at Cosine most often require PyTorch (3), Python (2), out of 3 postings in the last 12 months.
Is the Cosine tech stack changing?
Yes. PyTorch, Fine-tuning, Reinforcement Learning, SFT first appeared in Cosine job postings in the last six months.
How modern is the Cosine tech stack?
Cosine scores 74 out of 100 (Modern). The score averages how current each technology in the stack is and adds weight for AI adoption. AI technologies in the stack: 1; legacy ones: 0.
How does Alion know the Cosine tech stack?
Alion reads every job posting Cosine publishes and tags the technologies each one names. The figures on this page count the 8 postings of the last 12 months and were updated on Oct 20, 2026.
Method and citation
Alion reads every job posting the company publishes and tags the technologies each one names. Shares count the postings of the last 12 months, open and closed; the company's own products are counted apart. How we count
Alion, "Cosine tech stack: 52 technologies from 8 job postings", as of Oct 20, 2026. https://alion.io/company/cosine-2/technologies