Denis Cepun
Principal Engineering Manager at Microsoft
Luxembourg
Summary
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RockstarDenis Cepun is a Principal Engineering Manager at Microsoft based in Luxembourg, bringing deep expertise in cloud-native architecture, enterprise AI, and regulated-industry transformation developed over a 20+ year technical career and 16 years at Microsoft. He leads cross-functional teams across Europe, advising CxOs and managing multi-million-dollar portfolios to deliver secure, compliant AI- and cloud-driven solutions for finance, retail, and telecom. A hands-on leader who still contributes to engineering execution, Denis has practical DevOps and cloud experience—evidenced by contributions to microsoft/AzureTRE where he automated deployments, CI/CD, and infrastructure bootstrapping for trusted research environments. He coaches managers and senior engineers to raise technical standards, champions TDD and clean code, and balances rapid innovation (Copilot, RAG, LLMOps) with operational governance. His background spans product, consultancy, and innovation roles (including founding Microsoft Garage in Finland and expanding it to the Netherlands), reflecting a rare mix of delivery rigor and a culture-building mindset.
6 years of coding experience
10 years of employment as a software developer
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (18)
github-ci10
scripting10
cloud-infrastructure10
microsoft-azure10
terraform10
cicd10
terraformer10
script10
azure-service-bus10
sh10
infrastructure-as-code10
azure10
cloud-services10
shell10
githubaction-workflow10
Programming languages (8)
Github contributions (5)
microsoft/AzureTRE
May 2021 - Nov 2021
An accelerator to help organizations build Trusted Research Environments on Azure.
Role in this project:
DevOps Engineer & Cloud Engineer
DevOps Engineer & Cloud EngineerContributions:118 reviews, 62 commits, 85 PRs in 6 months
Contributions summary:Denis primarily focused on setting up and automating the infrastructure and deployment processes for the AzureTRE project. Their contributions include creating GitHub Actions for deploying core infrastructure to Azure, writing shell scripts for dependency checks and Terraform bootstrapping, and defining resource configurations. They also worked on modifying the CNAB builder and deployment scripts to deploy the application and services. Furthermore, the user integrated service bus messaging for deployment status updates.
trustedorganizationsazureacceleratorenvironments
microsoft/privateAML
Oct 2021 - Mar 2022
A private base deployment of Azure AML and related services.
Contributions:1 review, 31 commits, 2 PRs in 5 months
amldeploymentazure
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