Didi tech stack
Didi builds mostly with C++, Python, JavaScript. Its stack also includes vLLM, RTOS, ROS2, Ceres Solver. C++ is named in 8 of the 8 job postings Didi published in the last 12 months (100%). Counted by Alion from the job postings of Didi, updated Oct 13, 2026.
What programming languages does Didi use?
C++ is named in 100% of job postings at Didi, followed by Python (63%), JavaScript (13%).
What frameworks and libraries does Didi use?
ROS2 is named in 25% of job postings at Didi, followed by Ceres Solver (25%), Lanelet2 (25%), PyTorch (25%).
ROS2
2 25%
Ceres Solver
2 25%
Lanelet2
2 25%
PyTorch
2 25%
PyTorch C++
2 25%
SGLang
1 13%
Show all (12)
What cloud and platforms does Didi use?
vLLM is named in 25% of job postings at Didi, followed by RTOS (25%), CUDA Toolkit (13%), Hugging Face (13%).
What developer tools does Didi use?
TensorRT is named in 38% of job postings at Didi, followed by ONNX (25%), CMake (13%), LLVM (13%).
What AI and ML technologies does Didi use?
LLM is named in 25% of job postings at Didi, followed by Llama (13%), AWQ (13%), Qwen (13%).
Which engineering practices does Didi ask for?
Motion Planning is named in 63% of job postings at Didi, followed by Machine Learning (38%), Path Planning (25%), World Models (25%).
AI Agents
2 25%
Show all (13)
What does each Didi team work with?
The technologies each team's postings require most often, with the number of postings that require them.
Backend
4 postingsHow does your stack fit Didi?
How is the Didi 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 Didi stack?
Didi scores 86 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: 4; legacy ones: 0.
How common is the Didi stack in its industry?
Share of the 114 companies in the same industries, whose stack Alion knows, that use each technology.
Companies with a stack like Didi
Questions about the Didi tech stack
What programming languages does Didi use?
The languages named in Didi job postings are C++ (100%), Python (63%), JavaScript (13%), as a share of the 8 postings of the last 12 months.
Does Didi use ROS2?
Yes. ROS2 is named in 2 of 8 job postings (25%) and required in 2 of them.
What cloud and platforms does Didi use?
The cloud and platforms named in Didi job postings are vLLM (2), RTOS (2), CUDA Toolkit (1) (postings in brackets).
What skills do you need for a Backend job at Didi?
Backend postings at Didi most often require C++ (4), Python (3), ONNX (2), ROS2 (2), out of 4 postings in the last 12 months.
Is the Didi tech stack changing?
Yes. LLM, AI Agents, vLLM, PyTorch first appeared in Didi job postings in the last six months.
How modern is the Didi tech stack?
Didi scores 86 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: 4; legacy ones: 0.
How does Alion know the Didi tech stack?
Alion reads every job posting Didi publishes and tags the technologies each one names. The figures on this page count the 8 postings of the last 12 months and were updated on Oct 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, "Didi tech stack: 46 technologies from 8 job postings", as of Oct 13, 2026. https://alion.io/company/didi-7/technologies