CSEM tech stack

CSEM builds mostly with Python, C++, Bash, C#. Its stack also includes Linux, Windows. Python is named in 8 of the 11 job postings CSEM published in the last 12 months (73%). Counted by Alion from the job postings of CSEM, updated Oct 25, 2026.

Source: Alion Coverage: the company's job postings of the last 12 months Oct 25, 2026
Technologies in use
19
Postings analysed
11
Open now
8
Modernity
74 /100
New in 6 months
7

What programming languages does CSEM use?

Python is named in 73% of job postings at CSEM, followed by C++ (18%), Bash (9%), C# (9%).

Python 8 73% required in 100% · 6 open now · since Dec 2024
C++ 2 18% required in 100% · 1 open now · since Aug 2026
Bash 1 9% required in 100% · 1 open now · since Sep 2026
C# 1 9% required in 100% · 1 open now · since Aug 2026
SQL 1 9% required in 100% · 1 open now · since Aug 2026

What cloud and platforms does CSEM use?

Linux is named in 45% of job postings at CSEM, followed by Windows (9%).

Linux 5 45% required in 100% · 4 open now · since Aug 2026
Windows 1 9% required in 100% · 1 open now · since Aug 2026

What developer tools does CSEM use?

Git is named in 27% of job postings at CSEM, followed by SolidWorks (18%), Cadence Virtuoso (9%), Siemens Calibre (9%).

Git 3 27% required in 100% · 3 open now · since Sep 2026
SolidWorks 2 18% required in 100% · since Sep 2026
Cadence Virtuoso 1 9% required in 100% · 1 open now · since Apr 2026
Siemens Calibre 1 9% required in 100% · 1 open now · since Apr 2026

What AI and ML technologies does CSEM use?

LLM is named in 9% of job postings at CSEM.

LLM 1 9% required in 100% · 1 open now · since Sep 2026

Which engineering practices does CSEM ask for?

Machine Learning is named in 27% of job postings at CSEM, followed by Computer Vision (18%), Time Series (18%), AI Agents (9%).

Machine Learning 3 27% required in 100% · 3 open now · since Sep 2026
Computer Vision 2 18% required in 100% · 2 open now · since Sep 2026
Time Series 2 18% required in 100% · 2 open now · since Aug 2026
AI Agents 1 9% required in 100% · 1 open now · since Sep 2026
Anomaly Detection 1 9% required in 100% · 1 open now · since Sep 2026
Edge AI 1 9% required in 100% · since Sep 2026
ECSS 1 9% optional · 1 open now · since Sep 2026

What does each CSEM team work with?

The technologies each team's postings require most often, with the number of postings that require them.

Early Careers

6 postings
Python6
Linux4
Git3

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How is the CSEM 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.

First appeared
GitSep 2026
Machine LearningSep 2026
Computer VisionSep 2026
SolidWorksSep 2026
LinuxAug 2026
C++Aug 2026
Time SeriesAug 2026

How modern is the CSEM stack?

Modern AI adopter 74/100

CSEM 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 CSEM stack in its industry?

Share of the 706 companies in the same industries, whose stack Alion knows, that use each technology.

Python64%
Linux44%
C++42%
Bash17%
C#18%
LLM23%
SQL33%
Windows30%

Questions about the CSEM tech stack

What programming languages does CSEM use?

The languages named in CSEM job postings are Python (73%), C++ (18%), Bash (9%), C# (9%), SQL (9%), as a share of the 11 postings of the last 12 months.

Does CSEM use Linux?

Yes. Linux is named in 5 of 11 job postings (45%) and required in 5 of them.

What cloud and platforms does CSEM use?

The cloud and platforms named in CSEM job postings are Linux (5), Windows (1) (postings in brackets).

What skills do you need for a Early Careers job at CSEM?

Early Careers postings at CSEM most often require Python (6), Linux (4), Git (3), out of 6 postings in the last 12 months.

Is the CSEM tech stack changing?

Yes. Git, Machine Learning, Computer Vision, SolidWorks first appeared in CSEM job postings in the last six months.

How modern is the CSEM tech stack?

CSEM 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 CSEM tech stack?

Alion reads every job posting CSEM 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 Oct 25, 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, "CSEM tech stack: 19 technologies from 11 job postings", as of Oct 25, 2026. https://alion.io/company/csem/technologies

Licence: CC BY-SA 4.0JSON