ByteDance tech stack
ByteDance builds mostly with Python, C++, Java, Go. Its stack also includes PyTorch, Linux, Kubernetes, TensorFlow. Python is named in 430 of the 738 job postings ByteDance published in the last 12 months (58%). Counted by Alion from the job postings of ByteDance, updated Sep 30, 2026.
What programming languages does ByteDance use?
Python is named in 58% of job postings at ByteDance, followed by C++ (39%), Java (20%), Go (15%).
Python
430 58%
C++
286 39%
Java
144 20%
Go
111 15%
SQL
78 11%
Rust
45 6%
JavaScript
24 3%
Scala
14 2%
Show all (30)
What frameworks and libraries does ByteDance use?
PyTorch is named in 16% of job postings at ByteDance, followed by TensorFlow (8%), PyTorch C++ (8%), CUDA (7%).
PyTorch
120 16%
TensorFlow
61 8%
PyTorch C++
60 8%
SGLang
48 7%
TensorFlow C++
38 5%
Flink
38 5%
Hadoop
38 5%
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And 27 more, each named in fewer postings.
What databases does ByteDance use?
ClickHouse is named in 4% of job postings at ByteDance, followed by Redis (3%), RocksDB (3%), MySQL (3%).
ClickHouse
27 4%
Redis
23 3%
RocksDB
21 3%
MySQL
19 3%
Milvus
17 2%
ElasticSearch
10 1%
HBase
10 1%
DuckDB
8 1%
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What cloud and platforms does ByteDance use?
Linux is named in 15% of job postings at ByteDance, followed by Kubernetes (14%), CUDA Toolkit (7%), vLLM (7%).
Kubernetes
101 14%
CUDA Toolkit
50 7%
vLLM
50 7%
AWS
42 6%
GCP
41 6%
Azure
36 5%
Spark
28 4%
Show all (39)
What developer tools does ByteDance use?
Docker is named in 7% of job postings at ByteDance, followed by TensorRT (3%), Microsoft Excel (3%), Model Context Protocol (2%).
Docker
49 7%
TensorRT
20 3%
Model Context Protocol
18 2%
Prometheus
13 2%
Canva
12 2%
OpenStack
10 1%
Claude Code
9 1%
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And 32 more, each named in fewer postings.
What AI and ML technologies does ByteDance use?
LLM is named in 32% of job postings at ByteDance, followed by VLM (3%), Claude (2%), PEFT (2%).
Show all (15)
Which engineering practices does ByteDance ask for?
Machine Learning is named in 33% of job postings at ByteDance, followed by AI Agents (23%), Multimodal AI (20%), Reinforcement Learning (12%).
AI Agents
172 23%
Multimodal AI
146 20%
Reinforcement Learning
85 12%
Computer Vision
72 10%
RAG
70 9%
Prompt Engineering
69 9%
Show all (98)
And 58 more, each named in fewer postings.
What does each ByteDance team work with?
The technologies each team's postings require most often, with the number of postings that require them.
AI/ML
274 postingsBackend
96 postingsDevOps
62 postingsEarly Careers
43 postingsSolutions
42 postingsNetworking
23 postingsHow does your stack fit ByteDance?
How is the ByteDance 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 ByteDance stack?
ByteDance scores 76 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: 15; legacy ones: 0.
How common is the ByteDance stack in its industry?
Share of the 589 companies in the same industries, whose stack Alion knows, that use each technology.
What sets ByteDance apart
Companies with a stack like ByteDance
Questions about the ByteDance tech stack
What programming languages does ByteDance use?
The languages named in ByteDance job postings are Python (58%), C++ (39%), Java (20%), Go (15%), SQL (11%), as a share of the 738 postings of the last 12 months.
Does ByteDance use PyTorch?
Yes. PyTorch is named in 120 of 738 job postings (16%) and required in 89 of them.
What cloud and platforms does ByteDance use?
The cloud and platforms named in ByteDance job postings are Linux (109), Kubernetes (101), CUDA Toolkit (50) (postings in brackets).
What skills do you need for a AI/ML job at ByteDance?
AI/ML postings at ByteDance most often require Python (192), C++ (151), LLM (107), PyTorch (66), out of 274 postings in the last 12 months.
Is the ByteDance tech stack changing?
Yes. Imitation Learning, Sim-to-Real, Isaac Lab, Isaac Sim first appeared in ByteDance job postings in the last six months.
How modern is the ByteDance tech stack?
ByteDance scores 76 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: 15; legacy ones: 0.
How does Alion know the ByteDance tech stack?
Alion reads every job posting ByteDance publishes and tags the technologies each one names. The figures on this page count the 738 postings of the last 12 months and were updated on Sep 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, "ByteDance tech stack: 344 technologies from 738 job postings", as of Sep 30, 2026. https://alion.io/company/bytedance/technologies