Reddit tech stack
Reddit builds mostly with Python, Go, SQL, Java. Its stack also includes Kubernetes, PyTorch, TensorFlow, Google BigQuery. Python is named in 107 of the 224 job postings Reddit published in the last 12 months (48%). Counted by Alion from the job postings of Reddit, updated Nov 11, 2026.
What programming languages does Reddit use?
Python is named in 48% of job postings at Reddit, followed by Go (23%), SQL (20%), Java (12%).
Python
107 48%
Go
51 23%
SQL
44 20%
Java
27 12%
C++
25 11%
JavaScript
25 11%
TypeScript
23 10%
Rust
19 8%
Show all (16)
What frameworks and libraries does Reddit use?
PyTorch is named in 15% of job postings at Reddit, followed by TensorFlow (13%), React.js (8%), Ray (8%).
PyTorch
34 15%
TensorFlow
29 13%
React.js
19 8%
Ray
17 8%
Flink
11 5%
Jetpack Compose
9 4%
Transformers
8 4%
AVFoundation
6 3%
Show all (34)
What databases does Reddit use?
Google BigQuery is named in 13% of job postings at Reddit, followed by Redis (8%), PostgreSQL (4%), ClickHouse (3%).
Google BigQuery
28 13%
Redis
18 8%
PostgreSQL
8 4%
ClickHouse
6 3%
Apache Iceberg
2 1%
Cassandra
2 1%
DynamoDB
2 1%
Milvus
2 1%
Show all (15)
What cloud and platforms does Reddit use?
Kubernetes is named in 19% of job postings at Reddit, followed by GCP (9%), AWS (8%), Apache Kafka (8%).
Kubernetes
43 19%
GCP
21 9%
AWS
19 8%
Apache Kafka
17 8%
Spark
16 7%
Firebase
9 4%
Grafana
7 3%
Show all (29)
What developer tools does Reddit use?
GraphQL is named in 16% of job postings at Reddit, followed by gRPC (13%), Rest API (10%), Cursor (4%).
GraphQL
35 16%
gRPC
30 13%
Rest API
23 10%
Cursor
8 4%
Prometheus
6 3%
Docker
5 2%
Show all (23)
What AI and ML technologies does Reddit use?
LLM is named in 20% of job postings at Reddit, followed by Claude (3%), ChatGPT (1%), Llama (<1%).
Which engineering practices does Reddit ask for?
Machine Learning is named in 41% of job postings at Reddit, followed by Recommender Systems (16%), AI Agents (14%), A/B Testing (11%).
AI Agents
32 14%
Embeddings
21 9%
Platform Engineering
19 8%
CI/CD
18 8%
Show all (55)
And 15 more, each named in fewer postings.
What other technologies does Reddit use?
Kotlin Coroutines is named in 1% of job postings at Reddit.
Kotlin Coroutines
2 1%
What does each Reddit team work with?
The technologies each team's postings require most often, with the number of postings that require them.
AI/ML
55 postingsBackend
47 postingsData Science
22 postingsMobile
18 postingsFrontend
13 postingsHow does your stack fit Reddit?
How much does Reddit pay by technology?
Median stated pay of the postings that name each technology, against the median of all Reddit postings with stated pay: $272k across 168 postings.
| Technology | Postings with pay | Median | vs company median |
|---|---|---|---|
| Python | 75 | $267k | −2% |
| Go | 41 | $267k | −2% |
| SQL | 35 | $267k | −2% |
| Kubernetes | 31 | $267k | −2% |
| LLM | 30 | $304k | +12% |
| PyTorch | 22 | $322k | +18% |
| TypeScript | 21 | $267k | −2% |
| JavaScript | 20 | $267k | −2% |
| Google BigQuery | 20 | $267k | −2% |
| TensorFlow | 19 | $322k | +18% |
How is the Reddit 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 Reddit stack?
Reddit 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: 6; legacy ones: 0.
How common is the Reddit stack in its industry?
Share of the 123 companies in the same industries, whose stack Alion knows, that use each technology.
What sets Reddit apart
Companies with a stack like Reddit
Questions about the Reddit tech stack
What programming languages does Reddit use?
The languages named in Reddit job postings are Python (48%), Go (23%), SQL (20%), Java (12%), C++ (11%), as a share of the 224 postings of the last 12 months.
Does Reddit use PyTorch?
Yes. PyTorch is named in 34 of 224 job postings (15%) and required in 28 of them.
What cloud and platforms does Reddit use?
The cloud and platforms named in Reddit job postings are Kubernetes (43), GCP (21), AWS (19) (postings in brackets).
What skills do you need for a AI/ML job at Reddit?
AI/ML postings at Reddit most often require Python (31), PyTorch (22), TensorFlow (22), LLM (18), out of 55 postings in the last 12 months.
Is the Reddit tech stack changing?
Yes. Prompt Engineering, Media3, Microsoft Excel, Amazon CloudWatch first appeared in Reddit job postings in the last six months.
How modern is the Reddit tech stack?
Reddit 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: 6; legacy ones: 0.
How does Alion know the Reddit tech stack?
Alion reads every job posting Reddit publishes and tags the technologies each one names. The figures on this page count the 224 postings of the last 12 months and were updated on Nov 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, "Reddit tech stack: 179 technologies from 224 job postings", as of Nov 11, 2026. https://alion.io/company/reddit/technologies