Open tech stack
Open builds mostly with TypeScript, JavaScript, Node JS, Python. Its stack also includes Postman, AWS. TypeScript is named in 12 of the 28 job postings Open published in the last 12 months (43%). Counted by Alion from the job postings of Open, updated Sep 27, 2026.
What programming languages does Open use?
TypeScript is named in 43% of job postings at Open, followed by JavaScript (29%), Node JS (25%), Python (4%).
What cloud and platforms does Open use?
Postman is named in 4% of job postings at Open, followed by AWS (4%), Azure (4%), GCP (4%).
What developer tools does Open use?
WebRTC is named in 7% of job postings at Open, followed by Model Context Protocol (4%), Rest API (4%).
Which engineering practices does Open ask for?
AI Agents is named in 79% of job postings at Open, followed by Prompt Engineering (46%).
AI Agents
22 79%
Prompt Engineering
13 46%
What does each Open team work with?
The technologies each team's postings require most often, with the number of postings that require them.
Solutions
8 postingsHow does your stack fit Open?
How is the Open 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 stack?
Open scores 82 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.
Questions about the Open tech stack
What programming languages does Open use?
The languages named in Open job postings are TypeScript (43%), JavaScript (29%), Node JS (25%), Python (4%), as a share of the 28 postings of the last 12 months.
What cloud and platforms does Open use?
The cloud and platforms named in Open job postings are Postman (1), AWS (1), Azure (1) (postings in brackets).
What skills do you need for a Solutions job at Open?
Solutions postings at Open most often require Node JS (7), TypeScript (7), out of 8 postings in the last 12 months.
Is the Open tech stack changing?
Yes. LLM, WebRTC, Prompt Engineering, JavaScript first appeared in Open job postings in the last six months.
How modern is the Open tech stack?
Open scores 82 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 Open tech stack?
Alion reads every job posting Open publishes and tags the technologies each one names. The figures on this page count the 28 postings of the last 12 months and were updated on Sep 27, 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 tech stack: 14 technologies from 28 job postings", as of Sep 27, 2026. https://alion.io/company/open-cx/technologies