EOS tech stack
EOS builds mostly with JavaScript, Python. Its stack also includes Windows, drei, React Three Fiber, Azure DevOps. Windows is named in 3 of the 11 job postings EOS published in the last 12 months (27%). Counted by Alion from the job postings of EOS, updated Sep 28, 2026.
What programming languages does EOS use?
JavaScript is named in 18% of job postings at EOS, followed by Python (9%).
JavaScript
2 18%
Python
1 9%
What frameworks and libraries does EOS use?
drei is named in 18% of job postings at EOS, followed by React Three Fiber (18%), Ignite (9%), PyTorch (9%).
drei 
What cloud and platforms does EOS use?
Windows is named in 27% of job postings at EOS, followed by Azure DevOps (9%), Power BI (9%), Scale AI (9%).
What developer tools does EOS use?
Adobe After Effects is named in 9% of job postings at EOS, followed by Adobe Photoshop (9%), Canva (9%), SolidWorks (9%).
Which engineering practices does EOS ask for?
SLI/SLO/SLA is named in 18% of job postings at EOS, followed by Agentic Workflows (9%), CI/CD (9%).
How does your stack fit EOS?
How is the EOS 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 EOS stack?
EOS scores 61 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 EOS stack in its industry?
Share of the 112 companies in the same industries, whose stack Alion knows, that use each technology.
Companies with a stack like EOS
Solarvest Holdings Berhad
14 shared technologies
Cesna
14 shared technologies
Radisson Hotel Group
13 shared technologies
dsm-firmenich
14 shared technologies
Group Bayport
13 shared technologies
Divergent Technologies
13 shared technologies
Clarios
14 shared technologies
GN Group
13 shared technologies
Questions about the EOS tech stack
What programming languages does EOS use?
The languages named in EOS job postings are JavaScript (18%), Python (9%), as a share of the 11 postings of the last 12 months.
Does EOS use drei?
Yes. drei is named in 2 of 11 job postings (18%) and required in 2 of them.
What cloud and platforms does EOS use?
The cloud and platforms named in EOS job postings are Windows (3), Azure DevOps (1), Power BI (1) (postings in brackets).
Is the EOS tech stack changing?
Yes. drei, JavaScript, React Three Fiber, SLI/SLO/SLA first appeared in EOS job postings in the last six months.
How modern is the EOS tech stack?
EOS scores 61 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 EOS tech stack?
Alion reads every job posting EOS publishes and tags the technologies each one names. The figures on this page count the 11 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, "EOS tech stack: 18 technologies from 11 job postings", as of Sep 28, 2026. https://alion.io/company/eos-info/technologies