Castelis
castelis.com
Actively hiring
AI Agents
Custom Software Development
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Overview
Castelis is a French digital services company that designs, secures and operates digital solutions, from bespoke applications to AI agents in production. It is certified ISO 27001:2022, compliant with GDPR and rated Platinum by CyberVadis in 2025, and it hires C# and .NET developers and infrastructure architects. The company is based in France.
Tech stack
Technologies named in job postings at Castelis over the last 12 months, by layer, with the share of postings for each.
Technologies in use
9
Postings analysed
4
Stack modernity
76/100
Languages
C#
Cloud & platforms
.NET
Kubernetes
Linux
VMWare
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Full Castelis tech stack
9 technologies · by team · pay by technology · changes · similar stacks
Salary insights
Compensation ranges based on this company's open jobs
Median
$141k
Typical range
$112k – $211k
Open positions
4
2
Jobs
Junior
50%
Middle
50%
| Level | Jobs | Median | Typical range |
|---|---|---|---|
| Junior | 1 | $169k | $169k |
| Middle | 1 | $112k | $112k |
Highest paying role
Architecte Solutions Infrastructure
$211k
Normalized to USD per year
Growth
Hiring Momentum
28/100
Slowing
Open positions
4
0 opened / 0 closed in 30 days
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.
Backend
25% ▲
DevOps
25% ▲
Networking
25% ▲
Solutions
25% ▲
Offices
Where the company hires and what each office is for
Cities
2
Hiring now
2
Countries
1
Busiest office
Billy-Berclau
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Headquarters
Builds here
Office with open vacancies
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Billy-Berclau
France
HQ
1 open roles 1 posted in 90 days 100% engineering 50-200 est. staff $113k Avg Salary
hires for Backend
Lambersart
France
1 open roles 1 posted in 90 days 100% engineering 50-200 est. staff $112k Avg Salary
hires for DevOps
Jobs
$98k – $112k per year · Hybrid · Freelance · 3+ years exp · Lambersart
VMWare
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$140k – $168k per year · Hybrid · Freelance · 5+ years exp · France
TCP/IP
VLAN
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$182k – $209k per year · Hybrid · Freelance · France
Terraform
Ansible
Kubernetes
Linux
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Financials
Est. Annual Revenue
$13.7M
2025