Spellbook tech stack
Spellbook builds mostly with TypeScript, JavaScript, Node JS, Python. Its stack also includes AWS, tRPC, Anthropic, React.js. TypeScript is named in 5 of the 27 job postings Spellbook published in the last 12 months (19%). Counted by Alion from the job postings of Spellbook, updated Sep 29, 2026.
What programming languages does Spellbook use?
TypeScript is named in 19% of job postings at Spellbook, followed by JavaScript (19%), Node JS (11%), Python (4%).
What frameworks and libraries does Spellbook use?
tRPC is named in 11% of job postings at Spellbook, followed by React.js (7%), BullMQ (4%), NumPy (4%).
What databases does Spellbook use?
Amazon Redshift is named in 4% of job postings at Spellbook, followed by BigQuery (4%), Google BigQuery (4%), Snowflake (4%).
BigQuery 
What cloud and platforms does Spellbook use?
AWS is named in 19% of job postings at Spellbook, followed by Anthropic (7%), OpenAI (7%), Azure (4%).
Show all (9)
What developer tools does Spellbook use?
Copilot is named in 100% of job postings at Spellbook, followed by Docker (7%), AWS CDK (4%), Fivetran (4%).
What AI and ML technologies does Spellbook use?
LLM is named in 19% of job postings at Spellbook, followed by ChatGPT (4%), Claude (4%).
Which engineering practices does Spellbook ask for?
RAG is named in 11% of job postings at Spellbook, followed by A/B Testing (7%), Rollup (7%), AI Agents (4%).
RAG
3 11%
Rollup
2 7%
AI Agents
1 4%
CI/CD
1 4%
Function Calling
1 4%
What does each Spellbook team work with?
The technologies each team's postings require most often, with the number of postings that require them.
Leadership
3 postingsHow does your stack fit Spellbook?
How is the Spellbook 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 Spellbook stack?
Spellbook 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 Spellbook stack in its industry?
Share of the 169 companies in the same industries, whose stack Alion knows, that use each technology.
What sets Spellbook apart
Companies with a stack like Spellbook
Questions about the Spellbook tech stack
What programming languages does Spellbook use?
The languages named in Spellbook job postings are TypeScript (19%), JavaScript (19%), Node JS (11%), Python (4%), SQL (4%), as a share of the 27 postings of the last 12 months.
Does Spellbook use tRPC?
Yes. tRPC is named in 3 of 27 job postings (11%) and required in 1 of them.
What cloud and platforms does Spellbook use?
The cloud and platforms named in Spellbook job postings are AWS (5), Anthropic (2), OpenAI (2) (postings in brackets).
What skills do you need for a Leadership job at Spellbook?
Leadership postings at Spellbook most often require Copilot (3), AWS (2), JavaScript (2), React.js (2), out of 3 postings in the last 12 months.
Is the Spellbook tech stack changing?
Yes. Rollup, A/B Testing, RAG first appeared in Spellbook job postings in the last six months.
How modern is the Spellbook tech stack?
Spellbook 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 Spellbook tech stack?
Alion reads every job posting Spellbook publishes and tags the technologies each one names. The figures on this page count the 27 postings of the last 12 months and were updated on Sep 29, 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, "Spellbook tech stack: 43 technologies from 27 job postings", as of Sep 29, 2026. https://alion.io/company/spellbook/technologies