ByteDance tech stack
ByteDance builds mostly with C++, Python, Java, Go. Its stack also includes PyTorch, TensorFlow, Redis, Kubernetes. C++ is named in 2,000 of the 4,442 job postings ByteDance published in the last 12 months (45%). Counted by Alion from the job postings of ByteDance, updated Nov 13, 2026.
What programming languages does ByteDance use?
C++ is named in 45% of job postings at ByteDance, followed by Python (34%), Java (25%), Go (7%).
C++
2000 45%
Python
1531 34%
Java
1110 25%
Go
331 7%
JavaScript
255 6%
PHP
234 5%
SQL
151 3%
Kotlin
149 3%
Show all (33)
What frameworks and libraries does ByteDance use?
PyTorch is named in 7% of job postings at ByteDance, followed by TensorFlow (5%), CUDA (3%), Flink (3%).
PyTorch
292 7%
TensorFlow
233 5%
Flink
123 3%
TensorFlow C++
115 3%
LangChain
98 2%
SGLang
91 2%
Vue.js
84 2%
Show all (105)
And 65 more, each named in fewer postings.
What databases does ByteDance use?
Redis is named in 5% of job postings at ByteDance, followed by MySQL (2%), ClickHouse (1%), RocksDB (1%).
Redis
218 5%
MySQL
89 2%
ClickHouse
66 1%
RocksDB
42 1%
HBase
38 1%
Milvus
30 1%
PostgreSQL
27 1%
ElasticSearch
25 1%
Show all (32)
What cloud and platforms does ByteDance use?
Kubernetes is named in 4% of job postings at ByteDance, followed by Linux (4%), vLLM (2%), Apache Kafka (2%).
Kubernetes
189 4%
vLLM
102 2%
Apache Kafka
97 2%
Spark
82 2%
AWS
53 1%
Azure
47 1%
GCP
47 1%
Show all (70)
And 30 more, each named in fewer postings.
What developer tools does ByteDance use?
Model Context Protocol is named in 4% of job postings at ByteDance, followed by Claude Code (2%), Docker (2%), OpenAI Codex (1%).
Model Context Protocol
157 4%
Claude Code
110 2%
Docker
87 2%
TensorRT
48 1%
Copilot
47 1%
Prometheus
33 1%
Cursor
28 1%
Show all (112)
And 72 more, each named in fewer postings.
What AI and ML technologies does ByteDance use?
LLM is named in 17% of job postings at ByteDance, followed by VLM (4%), Claude (2%), PEFT (1%).
Show all (26)
Which engineering practices does ByteDance ask for?
AI Agents is named in 9% of job postings at ByteDance, followed by NLP (8%), RAG (7%), Machine Learning (6%).
AI Agents
411 9%
NLP
377 8%
RAG
293 7%
Multimodal AI
192 4%
Function Calling
185 4%
Prompt Engineering
158 4%
Show all (109)
And 69 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
1347 postingsEarly Careers
947 postingsBackend
866 postingsDevOps
226 postingsFrontend
150 postingsIndustrial Engineering
148 postingsHow does your stack fit ByteDance?
How much does ByteDance pay by technology?
Median stated pay of the postings that name each technology, against the median of all ByteDance postings with stated pay: $124k across 44 postings.
| Technology | Postings with pay | Median | vs company median |
|---|---|---|---|
| Python | 33 | $122k | −2% |
| C++ | 24 | $122k | −2% |
| Java | 18 | $122k | −2% |
| PyTorch | 10 | $122k | −2% |
| Go | 9 | $122k | −2% |
| LLM | 8 | $136k | +10% |
| Flink | 8 | $122k | −2% |
| Linux | 6 | $343k | +176% |
| TensorFlow | 6 | $166k | +34% |
| MySQL | 6 | $166k | +34% |
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 75 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: 26; legacy ones: 0.
How common is the ByteDance stack in its industry?
Share of the 2,120 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 C++ (45%), Python (34%), Java (25%), Go (7%), JavaScript (6%), as a share of the 4,442 postings of the last 12 months.
Does ByteDance use PyTorch?
Yes. PyTorch is named in 292 of 4,442 job postings (7%) and required in 260 of them.
What cloud and platforms does ByteDance use?
The cloud and platforms named in ByteDance job postings are Kubernetes (189), Linux (160), vLLM (102) (postings in brackets).
What skills do you need for a AI/ML job at ByteDance?
AI/ML postings at ByteDance most often require C++ (654), Python (463), LLM (312), Java (262), out of 1,347 postings in the last 12 months.
Is the ByteDance tech stack changing?
Yes. Active Directory, VMWare, Helm, Imitation Learning first appeared in ByteDance job postings in the last six months.
How modern is the ByteDance tech stack?
ByteDance scores 75 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: 26; 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 4,442 postings of the last 12 months and were updated on Nov 13, 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: 487 technologies from 4,442 job postings", as of Nov 13, 2026. https://alion.io/company/bytedance/technologies