Reddit tech stack
Reddit builds mostly with Python, Go, SQL, C++. Its stack also includes Kubernetes, PyTorch, Google BigQuery, TensorFlow. Python is named in 92 of the 173 job postings Reddit published in the last 12 months (53%). Counted by Alion from the job postings of Reddit, updated Sep 27, 2026.
What programming languages does Reddit use?
Python is named in 53% of job postings at Reddit, followed by Go (27%), SQL (20%), C++ (14%).
Python
92 53%
Go
46 27%
SQL
34 20%
C++
24 14%
Java
24 14%
JavaScript
23 13%
TypeScript
21 12%
Rust
17 10%
Show all (16)
What frameworks and libraries does Reddit use?
PyTorch is named in 16% of job postings at Reddit, followed by TensorFlow (14%), React.js (10%), Ray (9%).
PyTorch
27 16%
TensorFlow
24 14%
React.js
17 10%
Ray
15 9%
Flink
11 6%
Angular
7 4%
Vue.js
7 4%
Transformers
6 3%
Show all (28)
What databases does Reddit use?
Google BigQuery is named in 15% of job postings at Reddit, followed by BigQuery (12%), Redis (9%), PostgreSQL (5%).
Google BigQuery
26 15%
BigQuery
21 12%
Redis
15 9%
PostgreSQL
9 5%
ClickHouse
3 2%
Milvus
2 1%
Neo4j
2 1%
Vespa
2 1%
Show all (14)
What cloud and platforms does Reddit use?
Kubernetes is named in 19% of job postings at Reddit, followed by Spark (9%), GCP (8%), Apache Kafka (7%).
Kubernetes
33 19%
Spark
16 9%
GCP
13 8%
Apache Kafka
12 7%
AWS
11 6%
Firebase
9 5%
Show all (26)
What developer tools does Reddit use?
GraphQL is named in 16% of job postings at Reddit, followed by gRPC (12%), Rest API (9%), Cursor (4%).
Show all (21)
What AI and ML technologies does Reddit use?
LLM is named in 18% of job postings at Reddit, followed by Claude (3%), ChatGPT (1%).
Which engineering practices does Reddit ask for?
Machine Learning is named in 45% of job postings at Reddit, followed by AI Agents (16%), Recommender Systems (15%), A/B Testing (13%).
AI Agents
28 16%
Embeddings
18 10%
Platform Engineering
16 9%
CI/CD
14 8%
Show all (52)
And 12 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
1 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
44 postingsBackend
39 postingsData Science
21 postingsFrontend
12 postingsMobile
11 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: $303k across 110 postings.
| Technology | Postings with pay | Median | vs company median |
|---|---|---|---|
| Python | 55 | $267k | −12% |
| Go | 32 | $267k | −12% |
| SQL | 23 | $267k | −12% |
| LLM | 18 | $304k | 0% |
| Kubernetes | 18 | $285k | −6% |
| Google BigQuery | 18 | $267k | −12% |
| BigQuery | 18 | $267k | −12% |
| TypeScript | 18 | $267k | −12% |
| JavaScript | 17 | $267k | −12% |
| PyTorch | 15 | $322k | +6% |
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 83 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: 3; legacy ones: 0.
How common is the Reddit stack in its industry?
Share of the 34 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 (53%), Go (27%), SQL (20%), C++ (14%), Java (14%), as a share of the 173 postings of the last 12 months.
Does Reddit use PyTorch?
Yes. PyTorch is named in 27 of 173 job postings (16%) and required in 22 of them.
What cloud and platforms does Reddit use?
The cloud and platforms named in Reddit job postings are Kubernetes (33), Spark (16), GCP (13) (postings in brackets).
What skills do you need for a AI/ML job at Reddit?
AI/ML postings at Reddit most often require Python (27), PyTorch (18), TensorFlow (18), LLM (14), out of 44 postings in the last 12 months.
Is the Reddit tech stack changing?
Yes. Hypothesis, Alteryx, Next.js, FFmpeg first appeared in Reddit job postings in the last six months.
How modern is the Reddit tech stack?
Reddit scores 83 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: 3; 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 173 postings of the last 12 months and were updated on Sep 27, 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: 161 technologies from 173 job postings", as of Sep 27, 2026. https://alion.io/company/reddit/technologies