Walter tech stack
Walter builds mostly with JavaScript, Node JS, Python, TypeScript. Its stack also includes React.js, Azure, AWS, Jetpack Compose. JavaScript is named in 6 of the 10 job postings Walter published in the last 12 months (60%). Counted by Alion from the job postings of Walter, updated Sep 27, 2026.
What programming languages does Walter use?
JavaScript is named in 60% of job postings at Walter, followed by Node JS (40%), Python (40%), TypeScript (40%).
JavaScript
6 60%
Node JS
4 40%
Python
4 40%
TypeScript
4 40%
Ruby
3 30%
Kotlin
2 20%
C#
1 10%
PHP
1 10%
Show all (13)
What frameworks and libraries does Walter use?
React.js is named in 60% of job postings at Walter, followed by Jetpack Compose (20%), Ruby on Rails (20%), Angular (10%).
React.js
6 60%
Jetpack Compose
2 20%
Ruby on Rails
2 20%
Angular
1 10%
Django
1 10%
LangChain
1 10%
LangGraph
1 10%
Laravel
1 10%
Show all (20)
What databases does Walter use?
PostgreSQL is named in 10% of job postings at Walter.
PostgreSQL
1 10%
What cloud and platforms does Walter use?
Azure is named in 20% of job postings at Walter, followed by AWS (20%), .NET (10%), Android SDK (10%).
What developer tools does Walter use?
Cursor is named in 30% of job postings at Walter, followed by Model Context Protocol (30%), Claude Code (20%), Git (10%).
Cursor
3 30%
Model Context Protocol
3 30%
Claude Code
2 20%
Git
1 10%
Babel
1 10%
ESLint
1 10%
Storybook
1 10%
Vite
1 10%
Show all (9)
What AI and ML technologies does Walter use?
Claude is named in 20% of job postings at Walter, followed by LLM (10%).
Which engineering practices does Walter ask for?
CI/CD is named in 30% of job postings at Walter, followed by AI Agents (20%), Prompt Engineering (10%), RAG (10%).
CI/CD
3 30%
AI Agents
2 20%
Prompt Engineering
1 10%
RAG
1 10%
State Management
1 10%
Computer Vision
1 10%
NLP
1 10%
What does each Walter 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 Walter?
How is the Walter 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 Walter stack?
Walter scores 88 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: 2; legacy ones: 0.
How common is the Walter stack in its industry?
Share of the 122 companies in the same industries, whose stack Alion knows, that use each technology.
What sets Walter apart
Companies with a stack like Walter
Questions about the Walter tech stack
What programming languages does Walter use?
The languages named in Walter job postings are JavaScript (60%), Node JS (40%), Python (40%), TypeScript (40%), Ruby (30%), as a share of the 10 postings of the last 12 months.
Does Walter use React.js?
Yes. React.js is named in 6 of 10 job postings (60%) and required in 4 of them.
What cloud and platforms does Walter use?
The cloud and platforms named in Walter job postings are Azure (2), AWS (2), .NET (1) (postings in brackets).
What skills do you need for a Backend job at Walter?
Backend postings at Walter most often require TypeScript (3), JavaScript (2), Node JS (2), React.js (2), out of 3 postings in the last 12 months.
Is the Walter tech stack changing?
Yes. Cursor, Claude, Claude Code, Python first appeared in Walter job postings in the last six months.
How modern is the Walter tech stack?
Walter scores 88 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: 2; legacy ones: 0.
How does Alion know the Walter tech stack?
Alion reads every job posting Walter publishes and tags the technologies each one names. The figures on this page count the 10 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, "Walter tech stack: 58 technologies from 10 job postings", as of Sep 27, 2026. https://alion.io/company/walter/technologies