Union tech stack
Union builds mostly with Python, TypeScript, JavaScript, Rust. Its stack also includes Flyte, Kubernetes, React.js, Flink. Flyte is named in 4 of the 4 job postings Union published in the last 12 months (100%). Counted by Alion from the job postings of Union, updated Sep 29, 2026.
What programming languages does Union use?
Python is named in 75% of job postings at Union, followed by TypeScript (50%), JavaScript (50%), Rust (50%).
What frameworks and libraries does Union use?
React.js is named in 50% of job postings at Union, followed by Flink (25%), Headless UI (25%), Next.js (25%).
React.js
2 50%
Flink
1 25%
Headless UI
1 25%
Next.js
1 25%
PyTorch
1 25%
Tailwind CSS
1 25%
TensorFlow
1 25%
Show all (10)
What cloud and platforms does Union use?
Flyte is named in 100% of job postings at Union, followed by Kubernetes (75%), AWS (25%), Azure (25%).
Show all (10)
What developer tools does Union use?
Helm is named in 25% of job postings at Union, followed by Terraform (25%), Vite (25%), Webpack (25%).
Which engineering practices does Union ask for?
CI/CD is named in 50% of job postings at Union, followed by IAM (25%), Machine Learning (25%).
How does your stack fit Union?
How modern is the Union stack?
Union scores 76 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: 0; legacy ones: 0.
How common is the Union stack in its industry?
Share of the 232 companies in the same industries, whose stack Alion knows, that use each technology.
What sets Union apart
Companies with a stack like Union
FUNIC TECH PRIVATE LIMITED
28 shared technologies
Impact Analytics
26 shared technologies
Postman
27 shared technologies
NeoGenCode Technologies Pvt Ltd
25 shared technologies
Upstart
25 shared technologies
Samba TV
26 shared technologies
Motive
26 shared technologies
Elevance Health
27 shared technologies
Questions about the Union tech stack
What programming languages does Union use?
The languages named in Union job postings are Python (75%), TypeScript (50%), JavaScript (50%), Rust (50%), Go (25%), as a share of the 4 postings of the last 12 months.
Does Union use React.js?
Yes. React.js is named in 2 of 4 job postings (50%) and required in 2 of them.
What cloud and platforms does Union use?
The cloud and platforms named in Union job postings are Flyte (4), Kubernetes (3), AWS (1) (postings in brackets).
Is the Union tech stack changing?
No new technology has appeared in Union job postings in the last six months.
How modern is the Union tech stack?
Union scores 76 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: 0; legacy ones: 0.
How does Alion know the Union tech stack?
Alion reads every job posting Union 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 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, "Union tech stack: 36 technologies from 4 job postings", as of Sep 29, 2026. https://alion.io/company/union/technologies