Spiegel21 tech stack
Spiegel21 builds mostly with JavaScript, PHP, Sass. Its stack also includes GitHub, GitLab, MariaDB, MySQL. JavaScript is named in 3 of the 3 job postings Spiegel21 published in the last 12 months (100%). Counted by Alion from the job postings of Spiegel21, updated Oct 19, 2026.
What programming languages does Spiegel21 use?
JavaScript is named in 100% of job postings at Spiegel21, followed by PHP (100%), Sass (100%).
What frameworks and libraries does Spiegel21 use?
Bootstrap is named in 100% of job postings at Spiegel21, followed by Playwright (100%).
Bootstrap
3 100%
Playwright
3 100%
What databases does Spiegel21 use?
MariaDB is named in 100% of job postings at Spiegel21, followed by MySQL (100%).
What cloud and platforms does Spiegel21 use?
GitHub is named in 100% of job postings at Spiegel21, followed by GitLab (100%), GitLab CI (100%).
What developer tools does Spiegel21 use?
Claude Code is named in 100% of job postings at Spiegel21, followed by Docker (100%), Webpack (100%).
What AI and ML technologies does Spiegel21 use?
ChatGPT is named in 100% of job postings at Spiegel21, followed by Claude (100%), LLM (100%).
Which engineering practices does Spiegel21 ask for?
CI/CD is named in 100% of job postings at Spiegel21.
CI/CD
3 100%
What does each Spiegel21 team work with?
The technologies each team's postings require most often, with the number of postings that require them.
Robotics
3 postingsHow does your stack fit Spiegel21?
How modern is the Spiegel21 stack?
Spiegel21 scores 89 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: 3; legacy ones: 0.
How common is the Spiegel21 stack in its industry?
Share of the 690 companies in the same industries, whose stack Alion knows, that use each technology.
What sets Spiegel21 apart
Companies with a stack like Spiegel21
Questions about the Spiegel21 tech stack
What programming languages does Spiegel21 use?
The languages named in Spiegel21 job postings are JavaScript (100%), PHP (100%), Sass (100%), as a share of the 3 postings of the last 12 months.
Does Spiegel21 use Bootstrap?
Yes. Bootstrap is named in 3 of 3 job postings (100%) and required in 3 of them.
What cloud and platforms does Spiegel21 use?
The cloud and platforms named in Spiegel21 job postings are GitHub (3), GitLab (3), GitLab CI (3) (postings in brackets).
What skills do you need for a Robotics job at Spiegel21?
Robotics postings at Spiegel21 most often require Bootstrap (3), ChatGPT (3), Claude (3), Claude Code (3), out of 3 postings in the last 12 months.
Is the Spiegel21 tech stack changing?
No new technology has appeared in Spiegel21 job postings in the last six months.
How modern is the Spiegel21 tech stack?
Spiegel21 scores 89 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: 3; legacy ones: 0.
How does Alion know the Spiegel21 tech stack?
Alion reads every job posting Spiegel21 publishes and tags the technologies each one names. The figures on this page count the 3 postings of the last 12 months and were updated on Oct 19, 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, "Spiegel21 tech stack: 17 technologies from 3 job postings", as of Oct 19, 2026. https://alion.io/company/spiegel21/technologies