Duffel tech stack
Duffel builds mostly with Elixir, SQL, TypeScript. Its stack also includes GCP, Kubernetes. Elixir is named in 3 of the 7 job postings Duffel published in the last 12 months (43%). Counted by Alion from the job postings of Duffel, updated Oct 16, 2026.
What programming languages does Duffel use?
Elixir is named in 43% of job postings at Duffel, followed by SQL (29%), TypeScript (14%).
What cloud and platforms does Duffel use?
GCP is named in 29% of job postings at Duffel, followed by Kubernetes (29%).
GCP
2 29%
Kubernetes
2 29%
What developer tools does Duffel use?
Rest API is named in 14% of job postings at Duffel.
Rest API
1 14%
What AI and ML technologies does Duffel use?
LLM is named in 14% of job postings at Duffel.
LLM
1 14%
Which engineering practices does Duffel ask for?
AI Agents is named in 14% of job postings at Duffel, followed by Agentic Workflows (14%), Rollup (14%), Multi-Agent Systems (14%).
How does your stack fit Duffel?
How modern is the Duffel stack?
Duffel scores 81 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 Duffel stack in its industry?
Share of the 265 companies in the same industries, whose stack Alion knows, that use each technology.
What sets Duffel apart
Companies with a stack like Duffel
Questions about the Duffel tech stack
What programming languages does Duffel use?
The languages named in Duffel job postings are Elixir (43%), SQL (29%), TypeScript (14%), as a share of the 7 postings of the last 12 months.
Does Duffel use GCP?
Yes. GCP is named in 2 of 7 job postings (29%) and required in 2 of them.
What cloud and platforms does Duffel use?
The cloud and platforms named in Duffel job postings are GCP (2), Kubernetes (2) (postings in brackets).
Is the Duffel tech stack changing?
No new technology has appeared in Duffel job postings in the last six months.
How modern is the Duffel tech stack?
Duffel scores 81 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 Duffel tech stack?
Alion reads every job posting Duffel publishes and tags the technologies each one names. The figures on this page count the 7 postings of the last 12 months and were updated on Oct 16, 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, "Duffel tech stack: 12 technologies from 7 job postings", as of Oct 16, 2026. https://alion.io/company/duffel/technologies