Felix Ortmann - Cloud Architect

Q: Where is Felix based?

Felix is based in Hamburg, Germany .

Q: What languages does Felix speak?

Felix speaks the following languages: German (Native), English (Advanced) .

Q: How many years of experience does Felix have?

Felix has at least 14 years of experience. During this time, Felix has worked in at least 12 different roles and for 12 different companies . The average length of individual experience is 1 year and 1 month . Note that Felix may not have shared all experience and actually has more experience.

Q: What is Felix's latest experience?

Felix's most recent position is Cloud Architect at uni-assist e.V. .

Q: What companies has Felix worked for in recent years?

In recent years, Felix has worked for uni-assist e.V. , Stack Stream , Walnut.io , Bundesdruckerei , and Self-Employed Felix Ortmann .

Q: Which industries is Felix most experienced in?

Felix is most experienced in industries like Information Technology , Education , and Automotive . Felix also has some experience in Professional Services and Government and Administration .

Q: Which business areas is Felix most experienced in?

Felix is most experienced in business areas like Information Technology , Product Development , and Project Management . Felix also has some experience in Operations and Research and Development .

Q: Which industries has Felix worked in recently?

Felix has recently worked in industries like Information Technology , Education , and Government and Administration .

Q: Which business areas has Felix worked in recently?

Felix has recently worked in business areas like Information Technology , Project Management , and Operations .

Recommended expert

Hamburg, Germany

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Experience

Mar 2023 - May 2025

2 years 3 months

Cloud Architect

uni-assist e.V.

Project lead ‘Cloud Migration’ for moving the on-premise production environment to Scaleway.
Transformed a Docker-Swarm legacy setup to a modern Kubernetes-based cloud environment.
Architected a GDPR-compliant cloud landscape and deployment setup – 100% European sovereign cloud.
Hands-on bootstrapped the cloud environment with Terraform, ArgoCD, and GitLab Pipelines CI/CD.
Replaced the legacy VPN with modern mTLS PKI and deep AD integration.
Managed an 11-headed agile team using Kanban, moderating team meetings and plannings.
Successfully finished the migration, moving infrastructure, services, and data, from planning to execution.

Oct 2022 - Dec 2022

3 months

Cloud Engineer

Stack Stream

Operated multi-cloud (GCP & AWS) Kubernetes environments using Terraform and ArgoCD.
Developed and maintained microservices using Golang, Python & React.
Designed message-passing APIs in a Kafka-based architecture.

Apr 2022 - May 2022

2 months

Cloud Engineer

Walnut.io

Re-worked GitHub Actions CI/CD for a 50% speed up shipping an Elixir code base.
Conducted AWS EKS infrastructure reviews and filed reports for potential improvements.

Sep 2021 - May 2022

9 months

Site Reliability Engineer

Bundesdruckerei

Ensured SLOs and SLAs are met for critical German government infrastructure services on OpenShift.
Filed monthly assessments of the production-readiness on service and project level used for immediate and long term project planning.
Created Helm libraries for in-house services and implemented CI/CD using GitLab pipelines.

Jan 2021 - Present

5 years 4 months

Cloud Engineering, Architecture & Project Leadership

Self-Employed Felix Ortmann

Holistic distributed systems design, independent of the public cloud provider.
Made in EU – European sovereign cloud solutions – Scaleway certified.
Planning and management for cloud migration projects.
DevOps engineering & SRE services.

Nov 2019 - Jun 2021

1 year 8 months

Blue Team Engineer

Tenzir

Ideated, built, and maintained Threat Bus, an open-source threat intelligence dissemination layer in Python.
Designed message-passing APIs for STIX-2 IOC data on various backbones (ZMQ, RabbitMQ, RESTful).
Accomplished a joint project with a partner company to enable multiple Fortune-500 companies to use our products for retrospective intelligence matching.
Managed the operation and security monitoring of all computer infrastructures both in-house and on-site with a custom Wireguard mesh.
Acted as a threat hunter and security analyst in customer networks and filed bi-weekly security reports (shell scripting, CLI).
Owned the company’s cloud infrastructure on Kubernetes and provided CI/CD via GitHub Actions.

Oct 2018 - Aug 2019

11 months

Research Engineer

Fraunhofer Research Singapore

Conducted scientific research at the Cyber Security department of the Fraunhofer Institute Singapore.
Generated novel ideas and algorithms and implemented prototypes for:
Detection of Advanced Persistent Threats in corporate networks (Golang, Python, React).
IDS alert correlation and Blue Team automation (Python, ElasticSearch).
Won two prizes for innovative excellence in the Cyber Security industry.

Jan 2017 - Sep 2018

1 year 9 months

Backend & DevOps Engineer

Moovel Group

Developed infrastructure as code on AWS to enable urban mobility services in multiple German cities.
Delivered CI/CD via TeamCity for an AWS service landscape.
Architected and implemented backend microservices on Node.js.
Designed RESTful APIs for microservice communication.

Jun 2015 - Jul 2016

1 year 2 months

Fullstack Engineer

Joblift

Introduced Kubernetes to the team and handled the adoption when it was first released on GCP.
Provided and maintained infrastructure as code on GCP and provided CI/CD via Jenkins.
Implemented and maintained microservices in Java and React.
Designed RESTful APIs for microservice communication.

May 2014 - May 2015

1 year 1 month

Backend Engineer

SinnerSchrader

Developed web shops using Hybris framework on Linux with Java and Node.js.

Mar 2013 - Apr 2014

1 year 2 months

Software Engineer

catWorkX

Plugin development for Atlassian Jira and Confluence using Linux, Java, PHP.

Mar 2012 - Feb 2013

1 year

Student Software Engineer

University of Hamburg

Research project for distributed Petri net execution and simulation using Linux and Java.

Apr 2011 - Aug 2011

5 months

Student Assistant

University of Hamburg

Website administration and campus project maintenance using Linux and Java.

Industry Experience

See where this freelancer has spent most of their professional time.

Experienced in Information Technology, Education, Automotive, Professional Services, and Government and Administration.

Information Technology

Education

Automotive

Professional Services

Government and Administration

Business Area Experience

See which departments and functions this freelancer has contributed to most.

Experienced in Information Technology, Project Management, Product Development, Operations, and Research and Development.

Information Technology

Project Management

Product Development

Operations

Research and Development

Summary

Senior Cloud Architect and DevSecOps specialist with over 15 years of experience designing and securing large-scale distributed systems. Proven track record working with and designing Kubernetes landscapes and building GDPR-compliant sovereign cloud platforms.

Experience working in public sector and government grade security contexts. Strong background in threat detection, Zero Trust architecture, and high-performance CI/CD systems. Solid academic foundation with best-in-class master degree (1.0) and award winner for innovative threat detection algorithms at the Fraunhofer Institute Singapore.

Skills

Kubernetes, Docker, Helm, Argocd, Openshift, Scaleway, Aws, Gcp – 10+ Years
Terraform, Gitlab Pipelines, Github Actions, Pulumi – 5+ Years
Nginx, Iam, Grafana, Monitoring, Mtls, Pki, Vpn, Keycloak, Oauth – 10+ Years
Arch Linux, Shell-scripting, Python, Node.js, Golang, Java/kotlin, Distributed (Micro-)service Architectures – 15+ Years

Languages

German

Native

English

Advanced

Education

Oct 2018 - Sep 2019

Nanyang Technological University

Singapore

University of Hamburg

Master of Science · Computer Science · Hamburg, Germany · 1.0

University of Hamburg

Bachelor of Science · Computer Science · Hamburg, Germany

...and 1 more

Certifications & licenses

Scaleway Cloud Certified – Kubernetes

Scaleway Cloud Certified – Foundations

Scaleway Cloud Certified – Network

Statistics

Experience

Total positions 13

Experience in Information Technology 10.5 y

Avg length 1 y 4 m

Longest experience 5 y 3 m

Expertise

Recent roles Cloud Architect, Cloud Engineer, Site Reliability Engineer

Main industries Information Technology, Education, Automotive

Main business areas Information Technology, Project Management, Product Development

Qualifications

Highest degree Master

Certifications earned 3

Profile

Created

April 2026

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Frequently asked questions

Do you have questions? Here you can find further information.

Where is Felix based?

Felix is based in Hamburg, Germany.

What languages does Felix speak?

Felix speaks the following languages: German (Native), English (Advanced).

How many years of experience does Felix have?

Felix has at least 14 years of experience. During this time, Felix has worked in at least 12 different roles and for 12 different companies. The average length of individual experience is 1 year and 1 month. Note that Felix may not have shared all experience and actually has more experience.

What roles would Felix be best suited for?

Based on recent experience, Felix would be well-suited for roles such as: Cloud Architect, Cloud Engineer, Site Reliability Engineer.

What is Felix's latest experience?

Felix's most recent position is Cloud Architect at uni-assist e.V..

What companies has Felix worked for in recent years?

In recent years, Felix has worked for uni-assist e.V., Stack Stream, Walnut.io, Bundesdruckerei, and Self-Employed Felix Ortmann.

Which industries is Felix most experienced in?

Felix is most experienced in industries like Information Technology, Education, and Automotive. Felix also has some experience in Professional Services and Government and Administration.

Which business areas is Felix most experienced in?

Felix is most experienced in business areas like Information Technology, Product Development, and Project Management. Felix also has some experience in Operations and Research and Development.

Which industries has Felix worked in recently?

Felix has recently worked in industries like Information Technology, Education, and Government and Administration.

Which business areas has Felix worked in recently?

Felix has recently worked in business areas like Information Technology, Project Management, and Operations.

What is Felix's education?

Felix holds a Master in Computer Science from University of Hamburg and a Bachelor in Computer Science from University of Hamburg.

Does Felix have any certificates?

Felix has 3 certificates. These include: Scaleway Cloud Certified – Kubernetes, Scaleway Cloud Certified – Foundations, and Scaleway Cloud Certified – Network.

What is the availability of Felix?

Felix is immediately available for suitable projects.

What is the rate of Felix?

Felix's rate depends on the specific project requirements. Please use the Meet button on the profile to schedule a meeting and discuss the details.