CALB logo
CALB logo

CALB

calb-tech.com
calb-tech.com • HQ: Changzhou, China • 1001-5000 employees • Founded 2007
HQ: Changzhou, China • 1001-5000 employees • Founded 2007
Actively hiring
Commerce
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Overview
Technologies
Salaries
Products
People
Growth
Offices
Jobs
Financials

How CALB hires

Truth index
C 67/100
Ghost roles
54%
Stale roles
0%
Reposted roles
0%

CALB scores C on the Alion truth index (A is best, E worst), measured over 169 open roles re-checked against its own hiring board: 54% look like ghost listings, 0% have gone stale and 0% are the same role posted again. It measures how much of what this employer publishes turns into a real, finite search - not the employer as a workplace. How the index is computed

Overview

CALB manufactures lithium-ion batteries for electric vehicles and energy storage. Its cells supply several major Chinese automakers and grid storage projects. The company operates large gigafactories across multiple provinces.

Tech stack

Technologies named in job postings at CALB over the last 12 months, by layer, with the share of postings for each.
Technologies in use
24
Postings analysed
10
Stack modernity
75/100
Languages
Python30%
C++30%
MATLAB10%
SQL10%
Frameworks & libraries
TensorFlow20%
TensorFlow C++20%
LangChain10%
LlamaIndex10%
Cloud & platforms
Figma10%
Kubernetes10%
Linux10%
vLLM10%
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Full CALB tech stack 24 technologies · by team · pay by technology · changes · similar stacks

Growth

Hiring Momentum
63/100
Growing
Open positions
169
53 opened / 0 closed in 30 days
ATS activity
Every ~4 hours
Today
Hiring Dynamics +100%
Hiring Focus
The percentage next to each role is its share of the company's job openings over the last 90 days; the arrow shows the shift versus the previous period.
Industrial Engineering
72%
Backend
9%
AI/ML
4% ▲
QA
3% ▼
Hardware
3% ▼
Support
3% ▼
Actively hiring for Industrial Engineering (+39 in 30 days)
Activity Timeline
+53 jobs in a week Oct 2026

Offices

Where the company hires and what each office is for
Cities
8
Hiring now
8
Countries
1
Busiest office
Changzhou
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Headquarters Builds here Office with open vacancies Tap a pin for the office
Changzhou China
HQ
117 open roles 55 posted in 90 days 21% engineering
hires for Industrial Engineering, Backend, AI/ML
seen since Apr 2019 job postings
Chengdu China
Plant / site
7 open roles 2 posted in 90 days 14% engineering
hires for Industrial Engineering, AI/ML
seen since Jul 2026 job postings
Wuhan China
Plant / site
7 open roles 4 posted in 90 days 14% engineering
hires for Industrial Engineering, Backend
seen since Oct 2025 job postings
Handan China
Plant / site
5 open roles
hires for Industrial Engineering
seen since Mar 2026 job postings
Hefei China
Plant / site
4 open roles 4 posted in 90 days
hires for Industrial Engineering, Operations
seen since Oct 2026 job postings
Luoyang China
2 open roles 50% engineering
hires for QA, Industrial Engineering
seen since Feb 2026 job postings
Shanghai China
1 open roles 1 posted in 90 days 100% engineering
hires for Hardware
seen since Aug 2026 job postings
Xiamen China
1 open roles
hires for Industrial Engineering
seen since Feb 2026 job postings

Jobs

In office • 3+ years exp • Changzhou
Apply
In office • 3+ years exp • Changzhou
Apply
In office • 3+ years exp • Changzhou
Apply
≈ $29k – $85k per year (Estimated) • In office • 5+ years exp • Changzhou
C++
Apply
Apply
In office • 3+ years exp • Changzhou
Apply
Apply
In office • Changzhou
TCP/IP
Apply
In office • China
Apply
≈ $28k – $82k per year (Estimated) • In office • 5+ years exp • Changzhou
Apply
In office • 3+ years exp • Changzhou
C++
Figma
Axure RP
Apply
In office • China
Apply
All 30 jobs at CALB salaries, cities, levels and how long each has been open