R2 tech stack
R2 builds mostly with Python, Java, Rust, SQL. Its stack also includes Kubernetes, PostgreSQL, DynamoDB, AWS. Python is named in 4 of the 4 job postings R2 published in the last 12 months (100%). Counted by Alion from the job postings of R2, updated Sep 27, 2026.
What programming languages does R2 use?
Python is named in 100% of job postings at R2, followed by Java (50%), Rust (50%), SQL (50%).
What frameworks and libraries does R2 use?
OpenTelemetry is named in 25% of job postings at R2.
OpenTelemetry
1 25%
What databases does R2 use?
PostgreSQL is named in 50% of job postings at R2, followed by DynamoDB (50%), Snowflake (50%), ElasticSearch (25%).
What cloud and platforms does R2 use?
Kubernetes is named in 50% of job postings at R2, followed by AWS (25%), GCP (25%), GitLab CI (25%).
Kubernetes
2 50%
AWS
1 25%
GCP
1 25%
GitLab CI
1 25%
Istio
1 25%
Linkerd
1 25%
Power BI
1 25%
Show all (10)
What developer tools does R2 use?
gRPC is named in 50% of job postings at R2, followed by Docker (50%), Docker Compose (50%), Concourse (25%).
gRPC
2 50%
Docker
2 50%
Docker Compose
2 50%
Concourse
1 25%
GraphQL
1 25%
Jenkins
1 25%
Prometheus
1 25%
Rest API
1 25%
Show all (11)
Which engineering practices does R2 ask for?
CI/CD is named in 25% of job postings at R2, followed by ETL/ELT (25%), Platform Engineering (25%), Trunk-Based Development (25%).
How does your stack fit R2?
How modern is the R2 stack?
R2 scores 77 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.
Companies with a stack like R2
Questions about the R2 tech stack
What programming languages does R2 use?
The languages named in R2 job postings are Python (100%), Java (50%), Rust (50%), SQL (50%), Node JS (25%), as a share of the 4 postings of the last 12 months.
Does R2 use Kubernetes?
Yes. Kubernetes is named in 2 of 4 job postings (50%) and required in 1 of them.
What cloud and platforms does R2 use?
The cloud and platforms named in R2 job postings are Kubernetes (2), AWS (1), GCP (1) (postings in brackets).
Is the R2 tech stack changing?
No new technology has appeared in R2 job postings in the last six months.
How modern is the R2 tech stack?
R2 scores 77 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 R2 tech stack?
Alion reads every job posting R2 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 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, "R2 tech stack: 38 technologies from 4 job postings", as of Sep 27, 2026. https://alion.io/company/r2-4/technologies