Appier tech stack
Appier builds mostly with Python, SQL, Java, C++. Its stack also includes Linux, GCP, PyTorch, TensorFlow. Python is named in 25 of the 49 job postings Appier published in the last 12 months (51%). Counted by Alion from the job postings of Appier, updated Sep 26, 2026.
What programming languages does Appier use?
Python is named in 51% of job postings at Appier, followed by SQL (33%), Java (12%), C++ (8%).
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What frameworks and libraries does Appier use?
PyTorch is named in 20% of job postings at Appier, followed by TensorFlow (16%), Flink (6%), OpenTelemetry (4%).
PyTorch
10 20%
TensorFlow
8 16%
Flink
3 6%
OpenTelemetry
2 4%
React.js
2 4%
Hadoop
2 4%
Flutter
1 2%
NumPy
1 2%
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What databases does Appier use?
MySQL is named in 10% of job postings at Appier, followed by ClickHouse (8%), PostgreSQL (8%), Redis (6%).
MySQL
5 10%
ClickHouse
4 8%
PostgreSQL
4 8%
Redis
3 6%
Trino
2 4%
BigQuery
2 4%
Google BigQuery
2 4%
Cassandra
1 2%
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What cloud and platforms does Appier use?
Linux is named in 20% of job postings at Appier, followed by GCP (20%), Kubernetes (20%), Spark (20%).
GCP
10 20%
Kubernetes
10 20%
Spark
10 20%
Grafana
6 12%
AWS
5 10%
Tableau
4 8%
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What developer tools does Appier use?
Cursor is named in 18% of job postings at Appier, followed by Copilot (16%), Claude Code (12%), Docker (10%).
Cursor
9 18%
Copilot
8 16%
Claude Code
6 12%
Docker
5 10%
Terraform
5 10%
Git
4 8%
Prometheus
4 8%
Rest API
3 6%
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What AI and ML technologies does Appier use?
LLM is named in 20% of job postings at Appier, followed by Claude (12%), ChatGPT (8%), Core ML (2%).
Which engineering practices does Appier ask for?
AI Agents is named in 71% of job postings at Appier, followed by Machine Learning (33%), CI/CD (20%), RAG (14%).
AI Agents
35 71%
CI/CD
10 20%
RAG
7 14%
Function Calling
5 10%
Incident Management
5 10%
Multimodal AI
5 10%
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What other technologies does Appier use?
Kotlin Coroutines is named in 2% of job postings at Appier, followed by Swift Concurrency (2%).
Kotlin Coroutines
1 2%
Swift Concurrency
1 2%
What does each Appier team work with?
The technologies each team's postings require most often, with the number of postings that require them.
AI/ML
12 postingsBackend
12 postingsHow does your stack fit Appier?
How is the Appier stack changing?
Read from the dates of the postings themselves: a technology is new when the first posting that names it appeared in the last six months, rising or falling when its share of postings moved between the last two quarters.
How modern is the Appier stack?
Appier scores 85 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: 5; legacy ones: 0.
How common is the Appier stack in its industry?
Share of the 2,671 companies in the same industries, whose stack Alion knows, that use each technology.
What sets Appier apart
Companies with a stack like Appier
Questions about the Appier tech stack
What programming languages does Appier use?
The languages named in Appier job postings are Python (51%), SQL (33%), Java (12%), C++ (8%), Go (8%), as a share of the 49 postings of the last 12 months.
Does Appier use PyTorch?
Yes. PyTorch is named in 10 of 49 job postings (20%) and required in 8 of them.
What cloud and platforms does Appier use?
The cloud and platforms named in Appier job postings are Linux (10), GCP (10), Kubernetes (10) (postings in brackets).
What skills do you need for a AI/ML job at Appier?
AI/ML postings at Appier most often require Python (9), PyTorch (8), TensorFlow (8), SQL (4), out of 12 postings in the last 12 months.
Is the Appier tech stack changing?
Yes. OpenTelemetry, Tool Use, Post-training, RLHF first appeared in Appier job postings in the last six months.
How modern is the Appier tech stack?
Appier scores 85 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: 5; legacy ones: 0.
How does Alion know the Appier tech stack?
Alion reads every job posting Appier publishes and tags the technologies each one names. The figures on this page count the 49 postings of the last 12 months and were updated on Sep 26, 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, "Appier tech stack: 145 technologies from 49 job postings", as of Sep 26, 2026. https://alion.io/company/appier-2/technologies