System1 tech stack
System1 builds mostly with Node JS, Python, JavaScript, TypeScript. Its stack also includes AWS, Amazon CloudWatch, Redis, React.js. Node JS is named in 3 of the 6 job postings System1 published in the last 12 months (50%). Counted by Alion from the job postings of System1, updated Oct 14, 2026.
What programming languages does System1 use?
Node JS is named in 50% of job postings at System1, followed by Python (50%), JavaScript (50%), TypeScript (33%).
What frameworks and libraries does System1 use?
React.js is named in 33% of job postings at System1.
React.js
2 33%
What cloud and platforms does System1 use?
AWS is named in 50% of job postings at System1, followed by Amazon CloudWatch (33%), Datadog (33%), GitHub (33%).
AWS
3 50%
Datadog
2 33%
GitHub
2 33%
GitHub Actions
2 33%
Kubernetes
2 33%
New Relic
2 33%
Adjust
1 17%
Show all (11)
What developer tools does System1 use?
Docker is named in 50% of job postings at System1, followed by ArgoCD (33%), Helm (33%), Rest API (33%).
What AI and ML technologies does System1 use?
LLM is named in 33% of job postings at System1.
LLM
2 33%
Which engineering practices does System1 ask for?
AI Agents is named in 50% of job postings at System1, followed by CI/CD (50%), DNS (33%), Edge AI (33%).
AI Agents
3 50%
CI/CD
3 50%
RAG
2 33%
Embeddings
1 17%
Show all (16)
What does each System1 team work with?
The technologies each team's postings require most often, with the number of postings that require them.
Backend
3 postingsHow does your stack fit System1?
How is the System1 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 System1 stack?
System1 scores 78 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: 1; legacy ones: 0.
How common is the System1 stack in its industry?
Share of the 1,187 companies in the same industries, whose stack Alion knows, that use each technology.
Companies with a stack like System1
Questions about the System1 tech stack
What programming languages does System1 use?
The languages named in System1 job postings are Node JS (50%), Python (50%), JavaScript (50%), TypeScript (33%), as a share of the 6 postings of the last 12 months.
Does System1 use React.js?
Yes. React.js is named in 2 of 6 job postings (33%) and required in 2 of them.
What cloud and platforms does System1 use?
The cloud and platforms named in System1 job postings are AWS (3), Amazon CloudWatch (2), Datadog (2) (postings in brackets).
What skills do you need for a Backend job at System1?
Backend postings at System1 most often require AWS (3), Docker (3), Node JS (3), Python (3), out of 3 postings in the last 12 months.
Is the System1 tech stack changing?
Yes. Amazon CloudWatch, ArgoCD, DNS, Datadog first appeared in System1 job postings in the last six months.
How modern is the System1 tech stack?
System1 scores 78 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: 1; legacy ones: 0.
How does Alion know the System1 tech stack?
Alion reads every job posting System1 publishes and tags the technologies each one names. The figures on this page count the 6 postings of the last 12 months and were updated on Oct 14, 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, "System1 tech stack: 40 technologies from 6 job postings", as of Oct 14, 2026. https://alion.io/company/system1/technologies