H3C tech stack
H3C builds mostly with C++, Python, Rust, SystemVerilog. Its stack also includes GitHub, vLLM, LangChain, CUDA. C++ is named in 14 of the 35 job postings H3C published in the last 12 months (40%). Counted by Alion from the job postings of H3C, updated Oct 17, 2026.
What programming languages does H3C use?
C++ is named in 40% of job postings at H3C, followed by Python (34%), Rust (6%), SystemVerilog (6%).
C++
14 40%
Python
12 34%
Rust
2 6%
SystemVerilog
2 6%
TypeScript
2 6%
Verilog
2 6%
Java
1 3%
Perl
1 3%
Show all (9)
What frameworks and libraries does H3C use?
LangChain is named in 9% of job postings at H3C, followed by CUDA (6%), LangGraph (6%), PyTorch (6%).
LangChain
3 9%
LangGraph
2 6%
PyTorch
2 6%
PyTorch C++
2 6%
SGLang
2 6%
Selenium
1 3%
What databases does H3C use?
MySQL is named in 3% of job postings at H3C, followed by PostgreSQL (3%).
MySQL
1 3%
PostgreSQL
1 3%
What cloud and platforms does H3C use?
GitHub is named in 14% of job postings at H3C, followed by vLLM (14%), Linux (11%), Kubernetes (9%).
GitHub
5 14%
vLLM
5 14%
Kubernetes
3 9%
Ollama
3 9%
CUDA Toolkit
2 6%
Istio
1 3%
Show all (13)
What developer tools does H3C use?
Claude Code is named in 17% of job postings at H3C, followed by Cursor (17%), OpenAI Codex (17%), llama.cpp (9%).
Claude Code
6 17%
Cursor
6 17%
llama.cpp
3 9%
Altium Designer
2 6%
Cadence Allegro
2 6%
Copilot
2 6%
KiCad
2 6%
Show all (17)
What AI and ML technologies does H3C use?
LLM is named in 20% of job postings at H3C, followed by LoRA (6%), PEFT (6%).
Which engineering practices does H3C ask for?
DPO is named in 9% of job postings at H3C, followed by GRPO (9%), SFT (9%), BGP (6%).
Show all (20)
What does each H3C team work with?
The technologies each team's postings require most often, with the number of postings that require them.
Backend
11 postingsHardware
6 postingsEarly Careers
4 postingsAI/ML
3 postingsHow does your stack fit H3C?
How is the H3C 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 H3C stack?
H3C 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: 3; legacy ones: 0.
How common is the H3C stack in its industry?
Share of the 361 companies in the same industries, whose stack Alion knows, that use each technology.
What sets H3C apart
Companies with a stack like H3C
Questions about the H3C tech stack
What programming languages does H3C use?
The languages named in H3C job postings are C++ (40%), Python (34%), Rust (6%), SystemVerilog (6%), TypeScript (6%), as a share of the 35 postings of the last 12 months.
Does H3C use LangChain?
Yes. LangChain is named in 3 of 35 job postings (9%) and required in 1 of them.
What cloud and platforms does H3C use?
The cloud and platforms named in H3C job postings are GitHub (5), vLLM (5), Linux (4) (postings in brackets).
What skills do you need for a Backend job at H3C?
Backend postings at H3C most often require C++ (7), LLM (3), Python (3), Kubernetes (2), out of 11 postings in the last 12 months.
Is the H3C tech stack changing?
Yes. Copilot, Claude Code, Cursor, OpenAI Codex first appeared in H3C job postings in the last six months.
How modern is the H3C tech stack?
H3C 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: 3; legacy ones: 0.
How does Alion know the H3C tech stack?
Alion reads every job posting H3C publishes and tags the technologies each one names. The figures on this page count the 35 postings of the last 12 months and were updated on Oct 17, 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, "H3C tech stack: 72 technologies from 35 job postings", as of Oct 17, 2026. https://alion.io/company/h3c/technologies