Viridien tech stack
Viridien builds mostly with Python, C++, Bash, Java. Its stack also includes Linux, Kubernetes, PyTorch, TensorFlow. Python is named in 19 of the 37 job postings Viridien published in the last 12 months (51%). Counted by Alion from the job postings of Viridien, updated Oct 1, 2026.
What programming languages does Viridien use?
Python is named in 51% of job postings at Viridien, followed by C++ (27%), Bash (11%), Java (11%).
C++ 
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What frameworks and libraries does Viridien use?
PyTorch is named in 11% of job postings at Viridien, followed by TensorFlow (11%), PyTorch C++ (8%), TensorFlow C++ (8%).
PyTorch
4 11%
TensorFlow
4 11%
PyTorch C++
3 8%
TensorFlow C++
3 8%
MPI
2 5%
LangGraph
2 5%
LangChain
2 5%
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What databases does Viridien use?
PostgreSQL is named in 5% of job postings at Viridien, followed by Redis (3%).
PostgreSQL
2 5%
Redis
1 3%
What cloud and platforms does Viridien use?
Linux is named in 30% of job postings at Viridien, followed by Kubernetes (30%), Azure (22%), GitLab (14%).
Kubernetes
11 30%
Azure
8 22%
GitLab
5 14%
AWS
3 8%
CUDA Toolkit
2 5%
GCP
2 5%
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What developer tools does Viridien use?
Docker is named in 22% of job postings at Viridien, followed by OpenStack (16%), Terraform (11%), Claude Code (8%).
Docker
8 22%
OpenStack
6 16%
Terraform
4 11%
Claude Code
3 8%
Cursor
3 8%
Windsurf
3 8%
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What AI and ML technologies does Viridien use?
LLM is named in 11% of job postings at Viridien, followed by Gemini (8%), VLM (8%), Claude (3%).
Which engineering practices does Viridien ask for?
HPC is named in 49% of job postings at Viridien, followed by Machine Learning (30%), CI/CD (19%), Function Calling (11%).
HPC
18 49%
CI/CD
7 19%
Function Calling
4 11%
RAG
4 11%
Fine-tuning
3 8%
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What does each Viridien team work with?
The technologies each team's postings require most often, with the number of postings that require them.
AI/ML
6 postingsBackend
5 postingsData Science
3 postingsHow does your stack fit Viridien?
How is the Viridien 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 Viridien stack?
Viridien scores 83 out of 100 (Cutting-edge). The score averages how current each technology in the stack is and adds weight for AI adoption. AI technologies in the stack: 4; legacy ones: 0.
How common is the Viridien stack in its industry?
Share of the 442 companies in the same industries, whose stack Alion knows, that use each technology.
What sets Viridien apart
Companies with a stack like Viridien
General Dynamics Mission Systems
81 shared technologies
Tower Research Capital
65 shared technologies
KLA Corporation
95 shared technologies
Graphcore
73 shared technologies
Cadence Design Systems
86 shared technologies
Applied Materials
87 shared technologies
SanDisk
85 shared technologies
Applied Materials
90 shared technologies
Questions about the Viridien tech stack
What programming languages does Viridien use?
The languages named in Viridien job postings are Python (51%), C++ (27%), Bash (11%), Java (11%), Go (8%), as a share of the 37 postings of the last 12 months.
Does Viridien use PyTorch?
Yes. PyTorch is named in 4 of 37 job postings (11%) and required in 4 of them.
What cloud and platforms does Viridien use?
The cloud and platforms named in Viridien job postings are Linux (11), Kubernetes (11), Azure (8) (postings in brackets).
What skills do you need for a AI/ML job at Viridien?
AI/ML postings at Viridien most often require LLM (4), Python (4), C++ (3), Claude Code (3), out of 6 postings in the last 12 months.
Is the Viridien tech stack changing?
Yes. Agentic Workflows, Claude Code, Cursor, Fine-tuning first appeared in Viridien job postings in the last six months.
How modern is the Viridien tech stack?
Viridien scores 83 out of 100 (Cutting-edge). The score averages how current each technology in the stack is and adds weight for AI adoption. AI technologies in the stack: 4; legacy ones: 0.
How does Alion know the Viridien tech stack?
Alion reads every job posting Viridien publishes and tags the technologies each one names. The figures on this page count the 37 postings of the last 12 months and were updated on Oct 1, 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, "Viridien tech stack: 110 technologies from 37 job postings", as of Oct 1, 2026. https://alion.io/company/viridien/technologies