Halcyon tech stack
Halcyon builds mostly with Python, Rust, Scala, YARA. Its stack also includes AWS, Apache Kafka, DynamoDB, OpenSearch. Python is named in 1 of the 3 job postings Halcyon published in the last 12 months (33%). Counted by Alion from the job postings of Halcyon, updated Nov 9, 2026.
What programming languages does Halcyon use?
Python is named in 33% of job postings at Halcyon, followed by Rust (33%), Scala (33%), YARA (33%).
YARA What databases does Halcyon use?
DynamoDB is named in 33% of job postings at Halcyon, followed by OpenSearch (33%), PostgreSQL (33%), ClickHouse (33%).
What cloud and platforms does Halcyon use?
AWS is named in 33% of job postings at Halcyon, followed by Apache Kafka (33%), Braze (33%), Kubernetes (33%).
AWS
1 33%
Apache Kafka
1 33%
Braze
1 33%
Kubernetes
1 33%
Databricks
1 33%
GitHub Actions
1 33%
Grafana
1 33%
Show all (9)
What developer tools does Halcyon use?
Helm is named in 33% of job postings at Halcyon, followed by Prometheus (33%), Terraform (33%), YARA (33%).
What AI and ML technologies does Halcyon use?
LLM is named in 33% of job postings at Halcyon.
LLM
1 33%
Which engineering practices does Halcyon ask for?
A/B Testing is named in 33% of job postings at Halcyon, followed by Machine Learning (33%), Platform Engineering (33%).
How does your stack fit Halcyon?
How modern is the Halcyon stack?
Halcyon scores 78 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: 1; legacy ones: 0.
How common is the Halcyon stack in its industry?
Share of the 1,370 companies in the same industries, whose stack Alion knows, that use each technology.
Companies with a stack like Halcyon
Questions about the Halcyon tech stack
What programming languages does Halcyon use?
The languages named in Halcyon job postings are Python (33%), Rust (33%), Scala (33%), YARA (33%), as a share of the 3 postings of the last 12 months.
What cloud and platforms does Halcyon use?
The cloud and platforms named in Halcyon job postings are AWS (1), Apache Kafka (1), Braze (1) (postings in brackets).
Is the Halcyon tech stack changing?
No new technology has appeared in Halcyon job postings in the last six months.
How modern is the Halcyon tech stack?
Halcyon scores 78 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: 1; legacy ones: 0.
How does Alion know the Halcyon tech stack?
Alion reads every job posting Halcyon publishes and tags the technologies each one names. The figures on this page count the 3 postings of the last 12 months and were updated on Nov 9, 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, "Halcyon tech stack: 25 technologies from 3 job postings", as of Nov 9, 2026. https://alion.io/company/halcyon-ai/technologies