Calico tech stack
Calico builds mostly with Python, Go. Its stack also includes GCP, Kubernetes, PyTorch, JAX. Python is named in 3 of the 6 job postings Calico published in the last 12 months (50%). Counted by Alion from the job postings of Calico, updated Sep 28, 2026.
What programming languages does Calico use?
Python is named in 50% of job postings at Calico, followed by Go (17%).
What frameworks and libraries does Calico use?
PyTorch is named in 33% of job postings at Calico, followed by JAX (17%), NumPy (17%), Ray (17%).
What cloud and platforms does Calico use?
GCP is named in 33% of job postings at Calico, followed by Kubernetes (33%), Google GKE (17%).
What developer tools does Calico use?
Docker is named in 33% of job postings at Calico, followed by TPU (17%), Terraform (17%).
What AI and ML technologies does Calico use?
LLM is named in 17% of job postings at Calico.
LLM
1 17%
Which engineering practices does Calico ask for?
Machine Learning is named in 100% of job postings at Calico, followed by CI/CD (17%), FinOps (17%), HPC (17%).
How does your stack fit Calico?
How is the Calico 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 Calico stack?
Calico 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 Calico stack in its industry?
Share of the 150 companies in the same industries, whose stack Alion knows, that use each technology.
Calico products in its job postings
Postings at Calico name its own products. They describe what the company makes, so they are left out of the stack above.
Companies with a stack like Calico
Questions about the Calico tech stack
What programming languages does Calico use?
The languages named in Calico job postings are Python (50%), Go (17%), as a share of the 6 postings of the last 12 months.
Does Calico use PyTorch?
Yes. PyTorch is named in 2 of 6 job postings (33%) and required in 1 of them.
What cloud and platforms does Calico use?
The cloud and platforms named in Calico job postings are GCP (2), Kubernetes (2), Google GKE (1) (postings in brackets).
Is the Calico tech stack changing?
Yes. Docker, GCP, Kubernetes first appeared in Calico job postings in the last six months.
How modern is the Calico tech stack?
Calico 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 Calico tech stack?
Alion reads every job posting Calico publishes and tags the technologies each one names. The figures on this page count the 6 postings of the last 12 months and were updated on Sep 28, 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, "Calico tech stack: 19 technologies from 6 job postings", as of Sep 28, 2026. https://alion.io/company/calicolabs/technologies