Monarch tech stack
Monarch builds mostly with Python, C++. Its stack also includes PyTorch, GCP, OpenSearch, JAX. Python is named in 4 of the 5 job postings Monarch published in the last 12 months (80%). Counted by Alion from the job postings of Monarch, updated Oct 17, 2026.
What programming languages does Monarch use?
Python is named in 80% of job postings at Monarch, followed by C++ (20%).
What frameworks and libraries does Monarch use?
PyTorch is named in 40% of job postings at Monarch, followed by JAX (20%), OpenCV (20%), TensorFlow (20%).
What databases does Monarch use?
OpenSearch is named in 20% of job postings at Monarch.
OpenSearch
1 20%
What cloud and platforms does Monarch use?
GCP is named in 20% of job postings at Monarch.
GCP
1 20%
Which engineering practices does Monarch ask for?
Machine Learning is named in 80% of job postings at Monarch, followed by Computer Vision (60%), Human-in-the-Loop (20%), Reinforcement Learning (20%).
Computer Vision
3 60%
Reinforcement Learning
1 20%
What does each Monarch team work with?
The technologies each team's postings require most often, with the number of postings that require them.
AI/ML
4 postingsHow does your stack fit Monarch?
How is the Monarch 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 Monarch stack?
Monarch scores 72 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: 0; legacy ones: 0.
How common is the Monarch stack in its industry?
Share of the 671 companies in the same industries, whose stack Alion knows, that use each technology.
Companies with a stack like Monarch
Questions about the Monarch tech stack
What programming languages does Monarch use?
The languages named in Monarch job postings are Python (80%), C++ (20%), as a share of the 5 postings of the last 12 months.
Does Monarch use PyTorch?
Yes. PyTorch is named in 2 of 5 job postings (40%) and required in 2 of them.
What cloud and platforms does Monarch use?
The cloud and platforms named in Monarch job postings are GCP (1) (postings in brackets).
What skills do you need for a AI/ML job at Monarch?
AI/ML postings at Monarch most often require Python (4), PyTorch (2), out of 4 postings in the last 12 months.
Is the Monarch tech stack changing?
Yes. Computer Vision, PyTorch first appeared in Monarch job postings in the last six months.
How modern is the Monarch tech stack?
Monarch scores 72 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: 0; legacy ones: 0.
How does Alion know the Monarch tech stack?
Alion reads every job posting Monarch publishes and tags the technologies each one names. The figures on this page count the 5 postings of the last 12 months and were updated on Oct 17, 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, "Monarch tech stack: 13 technologies from 5 job postings", as of Oct 17, 2026. https://alion.io/company/monarchlabs/technologies