Cassi tech stack
Cassi builds mostly with TypeScript, Go, Swift, JavaScript. Its stack also includes AWS, DynamoDB, PostgreSQL, Figma. TypeScript is named in 2 of the 4 job postings Cassi published in the last 12 months (50%). Counted by Alion from the job postings of Cassi, updated Oct 27, 2026.
What programming languages does Cassi use?
TypeScript is named in 50% of job postings at Cassi, followed by Go (25%), Swift (25%), JavaScript (25%).
What frameworks and libraries does Cassi use?
Fastify is named in 25% of job postings at Cassi, followed by Push Notifications (25%), SwiftUI (25%), UIKit (25%).
Fastify
1 25%
Push Notifications
1 25%
SwiftUI
1 25%
UIKit
1 25%
Core Location
1 25%
DSPy
1 25%
Kotlin Multiplatform
1 25%
LangChain
1 25%
Show all (14)
What databases does Cassi use?
DynamoDB is named in 50% of job postings at Cassi, followed by PostgreSQL (50%), Core Data (25%).
What cloud and platforms does Cassi use?
AWS is named in 50% of job postings at Cassi, followed by Figma (25%), AWS Lambda (25%).
What developer tools does Cassi use?
Rest API is named in 50% of job postings at Cassi, followed by Copilot (25%), WebRTC (25%), WebSockets (25%).
Which engineering practices does Cassi ask for?
AI Agents is named in 25% of job postings at Cassi, followed by Clean Architecture (25%), Deep Linking (25%), ETL/ELT (25%).
AI Agents
1 25%
Clean Architecture
1 25%
Deep Linking
1 25%
Embeddings
1 25%
Hybrid Search
1 25%
Offline-First
1 25%
Show all (16)
How does your stack fit Cassi?
How is the Cassi 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 Cassi stack?
Cassi scores 73 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 Cassi stack in its industry?
Share of the 370 companies in the same industries, whose stack Alion knows, that use each technology.
Companies with a stack like Cassi
Questions about the Cassi tech stack
What programming languages does Cassi use?
The languages named in Cassi job postings are TypeScript (50%), Go (25%), Swift (25%), JavaScript (25%), Kotlin (25%), as a share of the 4 postings of the last 12 months.
Does Cassi use AWS?
Yes. AWS is named in 2 of 4 job postings (50%) and required in 1 of them.
What cloud and platforms does Cassi use?
The cloud and platforms named in Cassi job postings are AWS (2), Figma (1), AWS Lambda (1) (postings in brackets).
Is the Cassi tech stack changing?
Yes. Rest API first appeared in Cassi job postings in the last six months.
How modern is the Cassi tech stack?
Cassi scores 73 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 Cassi tech stack?
Alion reads every job posting Cassi publishes and tags the technologies each one names. The figures on this page count the 4 postings of the last 12 months and were updated on Oct 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, "Cassi tech stack: 48 technologies from 4 job postings", as of Oct 27, 2026. https://alion.io/company/cassihome/technologies