BLUED tech stack

BLUED builds mostly with JavaScript, Python, TypeScript, Node JS. Its stack also includes AWS, React.js, Ruby on Rails, Expo. JavaScript is named in 5 of the 6 job postings BLUED published in the last 12 months (83%). Counted by Alion from the job postings of BLUED, updated Sep 30, 2026.

Source: Alion Coverage: the company's job postings of the last 12 months Sep 30, 2026
Technologies in use
27
Postings analysed
6
Open now
5
Modernity
94 /100
New in 6 months
8

What programming languages does BLUED use?

JavaScript is named in 83% of job postings at BLUED, followed by Python (67%), TypeScript (67%), Node JS (50%).

JavaScript 5 83% required in 40% · 4 open now · since May 2026
Python 4 67% required in 50% · 3 open now · since Jul 2025
TypeScript 4 67% required in 50% · 3 open now · since May 2026
Node JS 3 50% required in 67% · 2 open now · since May 2026
Ruby 3 50% required in 33% · 2 open now · since May 2026
Kotlin 1 17% required in 100% · 1 open now · since Sep 2026

What frameworks and libraries does BLUED use?

React.js is named in 83% of job postings at BLUED, followed by Ruby on Rails (50%), React Native (33%), React Router (17%).

React.js 5 83% required in 60% · 4 open now · since May 2026
Ruby on Rails 3 50% required in 67% · 2 open now · since May 2026
React Native 2 33% required in 100% · 2 open now · since Aug 2026
React Router 1 17% required in 100% · 1 open now · since May 2026

What databases does BLUED use?

Amazon Aurora is named in 33% of job postings at BLUED, followed by PostgreSQL (17%).

Amazon Aurora 2 33% required in 100% · 2 open now · since May 2026
PostgreSQL 1 17% required in 100% · 1 open now · since May 2026

What cloud and platforms does BLUED use?

AWS is named in 83% of job postings at BLUED, followed by Expo (33%), AWS Fargate (17%), Amazon ECS (17%).

AWS 5 83% required in 60% · 4 open now · since Jul 2025
Expo 2 33% required in 100% · 2 open now · since Aug 2026
AWS Fargate 1 17% required in 100% · 1 open now · since May 2026
Amazon ECS 1 17% required in 100% · 1 open now · since May 2026
GitHub Actions 1 17% required in 100% · 1 open now · since May 2026
OpenAI 1 17% required in 100% · 1 open now · since May 2026

What developer tools does BLUED use?

Claude Code is named in 33% of job postings at BLUED, followed by AWS CDK (17%), OpenAI Codex (17%), Vite (17%).

Claude Code 2 33% required in 100% · 1 open now · since Jul 2026
AWS CDK 1 17% required in 100% · 1 open now · since May 2026
OpenAI Codex 1 17% required in 100% · since Jul 2026
Vite 1 17% required in 100% · 1 open now · since May 2026

What AI and ML technologies does BLUED use?

Claude is named in 50% of job postings at BLUED, followed by Gemini (17%), LLM (17%).

Claude 3 50% required in 100% · 2 open now · since May 2026
Gemini 1 17% required in 100% · 1 open now · since May 2026
LLM 1 17% required in 100% · 1 open now · since Jul 2025

Which engineering practices does BLUED ask for?

AI Agents is named in 83% of job postings at BLUED, followed by CI/CD (17%).

AI Agents 5 83% required in 100% · 4 open now · since Jul 2026
CI/CD 1 17% required in 100% · 1 open now · since May 2026

How does your stack fit BLUED?

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How is the BLUED 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.

First appeared
ExpoAug 2026
React NativeAug 2026
AI AgentsJul 2026
Claude CodeJul 2026
React.jsMay 2026
JavaScriptMay 2026
TypeScriptMay 2026
ClaudeMay 2026

How modern is the BLUED stack?

Cutting-edge AI adopter 94/100

BLUED scores 94 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 BLUED stack in its industry?

Share of the 920 companies in the same industries, whose stack Alion knows, that use each technology.

AWS24%
JavaScript33%
React.js17%
Python41%
TypeScript20%
Claude14%
Node JS12%
Ruby4%
Ruby on Rails3%
Amazon Aurora2%

What sets BLUED apart

Ruby4%
Ruby on Rails3%

Questions about the BLUED tech stack

What programming languages does BLUED use?

The languages named in BLUED job postings are JavaScript (83%), Python (67%), TypeScript (67%), Node JS (50%), Ruby (50%), as a share of the 6 postings of the last 12 months.

Does BLUED use React.js?

Yes. React.js is named in 5 of 6 job postings (83%) and required in 3 of them.

What cloud and platforms does BLUED use?

The cloud and platforms named in BLUED job postings are AWS (5), Expo (2), AWS Fargate (1) (postings in brackets).

Is the BLUED tech stack changing?

Yes. Expo, React Native, AI Agents, Claude Code first appeared in BLUED job postings in the last six months.

How modern is the BLUED tech stack?

BLUED scores 94 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 BLUED tech stack?

Alion reads every job posting BLUED 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 Sep 30, 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, "BLUED tech stack: 27 technologies from 6 job postings", as of Sep 30, 2026. https://alion.io/company/blued/technologies

Licence: CC BY-SA 4.0JSON