Heidi tech stack
Heidi builds mostly with Python, SQL, Go, TypeScript. Its stack also includes AWS, Databricks, Redis, Jetpack Compose. Python is named in 8 of the 38 job postings Heidi published in the last 12 months (21%). Counted by Alion from the job postings of Heidi, updated Sep 27, 2026.
What programming languages does Heidi use?
Python is named in 21% of job postings at Heidi, followed by SQL (21%), Go (5%), TypeScript (5%).
C# 
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What frameworks and libraries does Heidi use?
Jetpack Compose is named in 3% of job postings at Heidi, followed by PoC Library (3%), React.js (3%), SGLang (3%).
Jetpack Compose
1 3%
React.js
1 3%
SGLang
1 3%
TensorRT-LLM
1 3%
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What cloud and platforms does Heidi use?
AWS is named in 11% of job postings at Heidi, followed by Databricks (11%), Datadog (8%), Figma (8%).
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What developer tools does Heidi use?
Cursor is named in 16% of job postings at Heidi, followed by Rest API (16%), Claude Code (13%), Canva (11%).
Cursor
6 16%
Rest API
6 16%
Claude Code
5 13%
Canva
4 11%
dbt
3 8%
Terraform
3 8%
Prometheus
2 5%
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What AI and ML technologies does Heidi use?
LLM is named in 21% of job postings at Heidi, followed by Claude (5%), Gemini (5%).
Which engineering practices does Heidi ask for?
Embeddings is named in 16% of job postings at Heidi, followed by Fine-tuning (16%), CI/CD (8%), FinOps (5%).
Embeddings
6 16%
Fine-tuning
6 16%
CI/CD
3 8%
FinOps
2 5%
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What does each Heidi team work with?
The technologies each team's postings require most often, with the number of postings that require them.
Product
6 postingsSales
5 postingsDevOps
3 postingsHow does your stack fit Heidi?
How is the Heidi 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 Heidi stack?
Heidi scores 83 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 Heidi stack in its industry?
Share of the 347 companies in the same industries, whose stack Alion knows, that use each technology.
Companies with a stack like Heidi
Questions about the Heidi tech stack
What programming languages does Heidi use?
The languages named in Heidi job postings are Python (21%), SQL (21%), Go (5%), TypeScript (5%), C# (5%), as a share of the 38 postings of the last 12 months.
Does Heidi use AWS?
Yes. AWS is named in 4 of 38 job postings (11%) and required in 4 of them.
What cloud and platforms does Heidi use?
The cloud and platforms named in Heidi job postings are AWS (4), Databricks (4), Datadog (3) (postings in brackets).
What skills do you need for a Product job at Heidi?
Product postings at Heidi most often require LLM (4), Claude Code (3), Cursor (3), Canva (2), out of 6 postings in the last 12 months.
Is the Heidi tech stack changing?
Yes. FinOps first appeared in Heidi job postings in the last six months.
How modern is the Heidi tech stack?
Heidi scores 83 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 Heidi tech stack?
Alion reads every job posting Heidi publishes and tags the technologies each one names. The figures on this page count the 38 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, "Heidi tech stack: 71 technologies from 38 job postings", as of Sep 27, 2026. https://alion.io/company/heidi/technologies