12Build
12build.com
Actively hiring
Construction Management Software
Construction
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How 12Build hires
Truth index
A 89/100
Median time to fill
101 days
Ghost roles
10%
Stale roles
0%
Reposted roles
0%
12Build scores A on the Alion truth index (A is best, E worst), measured over 10 open roles re-checked against its own hiring board: 10% look like ghost listings, 0% have gone stale and 0% are the same role posted again. Its roles close in a median of 101 days. 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
12Build runs a tendering platform that connects main contractors with subcontractors and suppliers in the construction industry. Builders publish work packages and receive structured quotes from a network of tens of thousands of firms. The company is headquartered in Enschede and operates across the Netherlands, Belgium and Germany.
News
12Build launches innovations in pre-construction
The Dutch and Belgian construction sectors are receiving a technological boost in the fight against administrative pressure through a series of new features from 12BuildFollowing months of co-creation
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Report
12Build Sales BV: 12Build launches innovations in pre-construction
The Dutch and Belgian construction sectors are receiving a technological boost in the fight against administrative pressure through a series of new features from 12BuildFollowing months of co-creation
Read more
Report
E1 welcomes 12Build as part of its global construction procurement platform
see Dutch Press release heresee Danish Press release heresee German Press Release here E1 has acquired 12Build, reinforcing long-term investment in product innovation, people, and customer value.The a
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Report
E1 welcomes 12Build as part of its global construction procurement platform
see Dutch Press release heresee Danish Press release heresee German Press Release here E1 has acquired 12Build, reinforcing long-term investment in product innovation, people, and customer value.The
Read more
Report
Tech stack
Technologies named in job postings at 12Build over the last 12 months, by layer, with the share of postings for each.
Technologies in use
47
Postings analysed
10
Stack modernity
80/100AI adopter
Languages
PHP50%
JavaScript50%
TypeScript30%
Python20%
Frameworks & libraries
Vue.js50%
Laravel40%
Nuxt.js10%
OpenTelemetry10%
Databases
MySQL70%
OpenSearch30%
Cloud & platforms
Linux100%
Windows100%
AWS60%
API Gateway30%
AI & ML
Claude20%
LLM20%
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Full 12Build tech stack
47 technologies · by team · pay by technology · changes · similar stacks
Growth
Hiring Momentum
42/100
Stable
Open positions
10
1 opened / 7 closed in 30 days
Median time-to-fill
123 days
faster than 10% of the market
ATS activity
Every ~6 hours
Today
Hiring Dynamics
0%
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.
Sales
29% ▼
Early Careers
29% ▲
QA
14% ▼
HR
14% ▲
Marketing
14% ▼
Activity Timeline
New location: Nijverdal
Sep 2026
Added Windows to stack
Sep 2026
Added Linux to stack
Sep 2026
Added Nuxt.js to stack
Sep 2026
Offices
Where the company hires and what each office is for
Cities
3
Hiring now
2
Countries
2
Busiest office
Nijverdal
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Headquarters
Builds here
Office with open vacancies
No open vacancies right now Tap a pin for the office
Enschede
Netherlands
HQ
Nijverdal
Netherlands
Sales office
9 open roles 5 posted in 90 days 56% engineering 50-200 est. staff $80k Avg Salary
hires for DevOps, Sales, AI/ML
Antwerp
Belgium
Sales office
1 open roles 10-50 est. staff $48k Avg Salary
hires for Sales
Earlier presence
Copenhagen, Denmark
Zwolle, Netherlands
Jobs
$74k – $87k per year • In office • Nijverdal
JavaScript
PHP
TypeScript
Laravel
Databases
MySQL
OpenSearch
AI/ML
Claude
LLM
Frontend
Vue.js
Nuxt.js
DevOps
Terraform
CI/CD
AWS
Docker
AWS Lambda
Amazon S3
API Gateway
Linux
Windows
Management
Confluence
Apply
$70k – $86k per year • In office • Nijverdal
Databricks
DevOps
Linux
Windows
Analytics
ETL/ELT
Management
Confluence
Apply
$78k – $91k per year • In office • Nijverdal
Python
pySpark
Databases
MySQL
Databricks
AI/ML
Spark
RAG
OpenAI
LLMOps
DevOps
CI/CD
AWS
Linux
Windows
Management
Confluence
Apply
$74k – $87k per year • In office • Nijverdal
JavaScript
PHP
Laravel
Databases
MySQL
OpenSearch
AI/ML
Claude Code
AI Agents
Frontend
Vue.js
DevOps
Terraform
GitHub Actions
OpenTelemetry
Datadog
AWS
Docker
AWS Lambda
Progressive Delivery
Error Budget
SLI/SLO/SLA
Amazon S3
API Gateway
Linux
Windows
Management
Confluence
Apply
$78k – $89k per year • In office • Nijverdal
JavaScript
PHP
Laravel
Databases
MySQL
OpenSearch
AI/ML
Claude
Model Context Protocol
AI Agents
LLM
LLM Evaluation
Frontend
Vue.js
Yarn
Vuetify
pnpm
Mobile
Material Design
DevOps
Terraform
GitHub Actions
CI/CD
AWS
Docker
Platform Engineering
AWS Lambda
Amazon EC2
GitHub
Amazon S3
Amazon ECS
API Gateway
Linux
Windows
Management
Confluence
Apply