Open Cosmos tech stack
Open Cosmos builds mostly with Python, C++, MATLAB, VHDL. Its stack also includes Kubernetes, Linux, PostgreSQL, D3.js. Python is named in 10 of the 22 job postings Open Cosmos published in the last 12 months (45%). Counted by Alion from the job postings of Open Cosmos, updated Sep 28, 2026.
What programming languages does Open Cosmos use?
Python is named in 45% of job postings at Open Cosmos, followed by C++ (14%), MATLAB (14%), VHDL (14%).
C++ 
Show all (12)
What frameworks and libraries does Open Cosmos use?
D3.js is named in 5% of job postings at Open Cosmos, followed by GDAL (5%), NumPy (5%), Orekit (5%).
Orekit 
Show all (9)
What databases does Open Cosmos use?
PostgreSQL is named in 9% of job postings at Open Cosmos.
PostgreSQL
2 9%
What cloud and platforms does Open Cosmos use?
Kubernetes is named in 18% of job postings at Open Cosmos, followed by Linux (14%), AWS (9%), GCP (9%).
SNAP Show all (9)
What developer tools does Open Cosmos use?
Docker is named in 14% of job postings at Open Cosmos, followed by QGIS (9%), Simulink (9%), Xilinx Vivado (9%).
Show all (11)
What AI and ML technologies does Open Cosmos use?
LLM is named in 5% of job postings at Open Cosmos.
LLM
1 5%
Which engineering practices does Open Cosmos ask for?
CI/CD is named in 32% of job postings at Open Cosmos, followed by Digital Twin (18%), Platform Engineering (9%), Computer Vision (5%).
CI/CD
7 32%
Platform Engineering
2 9%
Computer Vision
1 5%
GitOps
1 5%
RAG
1 5%
Show all (12)
What does each Open Cosmos team work with?
The technologies each team's postings require most often, with the number of postings that require them.
Hardware
4 postingsBackend
3 postingsHow does your stack fit Open Cosmos?
How is the Open Cosmos 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 Open Cosmos stack?
Open Cosmos 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 Open Cosmos stack in its industry?
Share of the 100 companies in the same industries, whose stack Alion knows, that use each technology.
Companies with a stack like Open Cosmos
Questions about the Open Cosmos tech stack
What programming languages does Open Cosmos use?
The languages named in Open Cosmos job postings are Python (45%), C++ (14%), MATLAB (14%), VHDL (14%), Verilog (14%), as a share of the 22 postings of the last 12 months.
Does Open Cosmos use Kubernetes?
Yes. Kubernetes is named in 4 of 22 job postings (18%) and required in 4 of them.
What cloud and platforms does Open Cosmos use?
The cloud and platforms named in Open Cosmos job postings are Kubernetes (4), Linux (3), AWS (2) (postings in brackets).
What skills do you need for a Hardware job at Open Cosmos?
Hardware postings at Open Cosmos most often require VHDL (3), Verilog (3), Python (2), Xilinx Vivado (2), out of 4 postings in the last 12 months.
Is the Open Cosmos tech stack changing?
Yes. Rust, Docker, RTOS, C++ first appeared in Open Cosmos job postings in the last six months.
How modern is the Open Cosmos tech stack?
Open Cosmos 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 Open Cosmos tech stack?
Alion reads every job posting Open Cosmos publishes and tags the technologies each one names. The figures on this page count the 22 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, "Open Cosmos tech stack: 55 technologies from 22 job postings", as of Sep 28, 2026. https://alion.io/company/open-cosmos/technologies