Fly.io tech stack
Fly.io builds mostly with Elixir, Go, JavaScript, Ruby. Its stack also includes Supabase, GitHub, Django. Supabase is named in 2 of the 6 job postings Fly.io published in the last 12 months (33%). Counted by Alion from the job postings of Fly.io, updated Oct 30, 2026.
What programming languages does Fly.io use?
Elixir is named in 17% of job postings at Fly.io, followed by Go (17%), JavaScript (17%), Ruby (17%).
What frameworks and libraries does Fly.io use?
Django is named in 17% of job postings at Fly.io.
Django
1 17%
What cloud and platforms does Fly.io use?
Supabase is named in 33% of job postings at Fly.io, followed by GitHub (17%), Linux (17%).
What developer tools does Fly.io use?
Docker is named in 17% of job postings at Fly.io.
Docker
1 17%
Which engineering practices does Fly.io ask for?
eBPF is named in 17% of job postings at Fly.io.
eBPF
1 17%
How does your stack fit Fly.io?
How modern is the Fly.io stack?
Fly.io scores 75 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: 0; legacy ones: 0.
Fly.io products in its job postings
Postings at Fly.io name its own products. They describe what the company makes, so they are left out of the stack above.
Companies with a stack like Fly.io
Questions about the Fly.io tech stack
What programming languages does Fly.io use?
The languages named in Fly.io job postings are Elixir (17%), Go (17%), JavaScript (17%), Ruby (17%), Python (17%), as a share of the 6 postings of the last 12 months.
Does Fly.io use Supabase?
Yes. Supabase is named in 2 of 6 job postings (33%) and required in 2 of them.
What cloud and platforms does Fly.io use?
The cloud and platforms named in Fly.io job postings are Supabase (2), GitHub (1), Linux (1) (postings in brackets).
Is the Fly.io tech stack changing?
No new technology has appeared in Fly.io job postings in the last six months.
How modern is the Fly.io tech stack?
Fly.io scores 75 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: 0; legacy ones: 0.
How does Alion know the Fly.io tech stack?
Alion reads every job posting Fly.io publishes and tags the technologies each one names. The figures on this page count the 6 postings of the last 12 months and were updated on Oct 30, 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, "Fly.io tech stack: 11 technologies from 6 job postings", as of Oct 30, 2026. https://alion.io/company/fly-io/technologies