Appen tech stack
Appen builds mostly with Python, SQL. Its stack also includes AWS, Anthropic. LLM is named in 3 of the 9 job postings Appen published in the last 12 months (33%). Counted by Alion from the job postings of Appen, updated Oct 11, 2026.
What programming languages does Appen use?
Python is named in 11% of job postings at Appen, followed by SQL (11%).
What cloud and platforms does Appen use?
AWS is named in 11% of job postings at Appen, followed by Anthropic (11%), Databricks (11%).
What AI and ML technologies does Appen use?
LLM is named in 33% of job postings at Appen, followed by Claude (11%).
Which engineering practices does Appen ask for?
Computer Vision is named in 67% of job postings at Appen, followed by Pre-training (67%), Red Teaming (67%), SFT (67%).
Computer Vision
6 67%
Speech Recognition
6 67%
RLHF
2 22%
AI Agents
1 11%
Show all (13)
How does your stack fit Appen?
How modern is the Appen stack?
Appen scores 79 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.
Companies with a stack like Appen
Questions about the Appen tech stack
What programming languages does Appen use?
The languages named in Appen job postings are Python (11%), SQL (11%), as a share of the 9 postings of the last 12 months.
What cloud and platforms does Appen use?
The cloud and platforms named in Appen job postings are AWS (1), Anthropic (1), Databricks (1) (postings in brackets).
Is the Appen tech stack changing?
No new technology has appeared in Appen job postings in the last six months.
How modern is the Appen tech stack?
Appen scores 79 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 Appen tech stack?
Alion reads every job posting Appen publishes and tags the technologies each one names. The figures on this page count the 9 postings of the last 12 months and were updated on Oct 11, 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, "Appen tech stack: 20 technologies from 9 job postings", as of Oct 11, 2026. https://alion.io/company/appen-io/technologies