Hello Heart tech stack
Hello Heart builds mostly with Python, SQL, Scala, JavaScript. Its stack also includes AWS, Kubernetes, PostgreSQL, ElasticSearch. Python is named in 10 of the 18 job postings Hello Heart published in the last 12 months (56%). Counted by Alion from the job postings of Hello Heart, updated Sep 28, 2026.
What programming languages does Hello Heart use?
Python is named in 56% of job postings at Hello Heart, followed by SQL (33%), Scala (28%), JavaScript (22%).
Python
10 56%
SQL
6 33%
Scala
5 28%
JavaScript
4 22%
Go
3 17%
Java
3 17%
Node JS
3 17%
TypeScript
3 17%
What frameworks and libraries does Hello Heart use?
React Native is named in 17% of job postings at Hello Heart, followed by Play Framework (17%), React.js (17%), Redux (17%).
React Native
3 17%
React.js
3 17%
Redux
3 17%
LightGBM
2 11%
PyTorch
2 11%
Scikit-learn
2 11%
XGBoost
2 11%
What databases does Hello Heart use?
PostgreSQL is named in 17% of job postings at Hello Heart, followed by ElasticSearch (17%), Redis (17%), Snowflake (6%).
What cloud and platforms does Hello Heart use?
AWS is named in 33% of job postings at Hello Heart, followed by Kubernetes (28%), Apache Kafka (17%), Spark (17%).
AWS
6 33%
Kubernetes
5 28%
Apache Kafka
3 17%
Spark
3 17%
Kibana
2 11%
Figma
1 6%
Power BI
1 6%
Show all (11)
What developer tools does Hello Heart use?
Docker is named in 17% of job postings at Hello Heart, followed by Microsoft Excel (11%), Claude Code (6%), Rest API (6%).
What AI and ML technologies does Hello Heart use?
ChatGPT is named in 6% of job postings at Hello Heart, followed by Claude (6%).
Which engineering practices does Hello Heart ask for?
A/B Testing is named in 22% of job postings at Hello Heart, followed by Machine Learning (22%), AI Agents (11%), CI/CD (11%).
AI Agents
2 11%
CI/CD
2 11%
Reinforcement Learning
2 11%
Incident Management
1 6%
What does each Hello Heart team work with?
The technologies each team's postings require most often, with the number of postings that require them.
AI/ML
4 postingsHow does your stack fit Hello Heart?
How is the Hello Heart 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 Hello Heart stack?
Hello Heart 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 Hello Heart stack in its industry?
Share of the 152 companies in the same industries, whose stack Alion knows, that use each technology.
What sets Hello Heart apart
Companies with a stack like Hello Heart
Questions about the Hello Heart tech stack
What programming languages does Hello Heart use?
The languages named in Hello Heart job postings are Python (56%), SQL (33%), Scala (28%), JavaScript (22%), Go (17%), as a share of the 18 postings of the last 12 months.
Does Hello Heart use React Native?
Yes. React Native is named in 3 of 18 job postings (17%) and required in 3 of them.
What cloud and platforms does Hello Heart use?
The cloud and platforms named in Hello Heart job postings are AWS (6), Kubernetes (5), Apache Kafka (3) (postings in brackets).
What skills do you need for a AI/ML job at Hello Heart?
AI/ML postings at Hello Heart most often require Python (3), LightGBM (2), Microsoft Excel (2), PyTorch (2), out of 4 postings in the last 12 months.
Is the Hello Heart tech stack changing?
Yes. Amazon S3, Kibana, Kubernetes, Scala first appeared in Hello Heart job postings in the last six months.
How modern is the Hello Heart tech stack?
Hello Heart 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 Hello Heart tech stack?
Alion reads every job posting Hello Heart publishes and tags the technologies each one names. The figures on this page count the 18 postings of the last 12 months and were updated on Sep 28, 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, "Hello Heart tech stack: 43 technologies from 18 job postings", as of Sep 28, 2026. https://alion.io/company/hello-heart/technologies