D One
d-one.ai
Actively hiring
AI Consulting & Integration
Analytics & BI Consulting
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Jobs
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How D One hires
Truth index
B 75/100
Ghost roles
0%
Stale roles
100%
Reposted roles
0%
D One scores B on the Alion truth index (A is best, E worst), measured over 3 open roles re-checked against its own hiring board: 0% look like ghost listings, 100% 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
D ONE is the leading Swiss consultancy for data driven value creation, data and AI. Hands-on business practitioners with academic excellence provide corporate transformation towards information enterprise. Our clients recommend us because we make success happen in an easy-to-do-business-with way.
Tech stack
Technologies named in job postings at D One over the last 12 months, by layer, with the share of postings for each.
Technologies in use
65
Postings analysed
11
Stack modernity
75/100AI adopter
Languages
Python91%
SQL91%
Node JS9%
JavaScript9%
Frameworks & libraries
LangChain18%
Pydantic18%
React.js9%
Vue.js9%
Databases
Snowflake9%
Chroma9%
PostgreSQL9%
Qdrant9%
Cloud & platforms
Spark73%
Azure55%
Databricks45%
AWS27%
AI & ML
LLM27%
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Full D One tech stack
65 technologies · by team · pay by technology · changes · similar stacks
Growth
Hiring Momentum
73/100
Growing
Open positions
10
5 opened / 1 closed in 30 days
Median time-to-fill
42 days
faster than 31% of the market
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.
AI/ML
38% ▼
Early Careers
38% ▲
Data Science
13% ▲
Product
13% ▼
Actively hiring for Early Careers (+3 in 30 days)
Activity Timeline
+5 jobs in a week
Oct 2026
Added Rest API to stack
Sep 2026
Offices
Where the company hires and what each office is for
Cities
3
Hiring now
3
Countries
3
Busiest office
Zurich
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Headquarters
Builds here
Office with open vacancies
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Zurich
Switzerland
Regional office
7 open roles 6 posted in 90 days 57% engineering 50-200 est. staff
hires for Early Careers, AI/ML, Data Science
Athens
Greece
Engineering / R&D
3 open roles 2 posted in 90 days 100% engineering 10-50 est. staff
hires for AI/ML
Munich
Germany
1 open roles 100% engineering 10-50 est. staff
hires for AI/ML
Jobs
In office • Internship • Zurich
Python
SQL
Spark
Promptfoo
LLM
RAG
Red Teaming
LLM Guardrails
EU AI Act
NIST AI RMF
DevOps
Git
Cybersecurity
OWASP Top 10
Least Privilege
Apply
In office • Internship • Zurich
Python
SQL
Copilot
Spark
Claude Code
Function Calling
AI Agents
Tool Use
DevOps
Git
Apply
≈ $94k – $204k per year (Estimated) • In office • Full-Time • Zurich
Python
SQL
Databricks
Microsoft Fabric
AI/ML
dbt
DevOps
Azure
Analytics
ETL/ELT
Data Vault
Dimensional Modeling
Apply
≈ $36k – $92k per year (Estimated) • In office • Full-Time • Master's Degree • Athens
Python
SQL
Databricks
AI/ML
Spark
dbt
Analytics
Azure Data Factory
Apply
In office • Full-Time • Master's Degree • Athens
Python
JavaScript
Node JS
LangChain
AI Agents
LLM
RAG
OpenAI
Anthropic
Frontend
Vue.js
GraphQL
React.js
DevOps
Rest API
GCP
Azure
AWS
Apply
In office • Full-Time • Master's Degree • Athens
Python
SQL
Databricks
Microsoft Fabric
AI/ML
Spark
DevOps
GCP
Azure
AWS
Analytics
ETL/ELT
Apply
≈ $79k – $162k per year (Estimated) • In office • Full-Time • Master's Degree • Munich
Python
SQL
Databricks
AI/ML
Spark
dbt
RAG
Analytics
Azure Data Factory
Apply