Freelancer profile translated to English.
Back to original languageAbout Mickey
As an experienced DevOps Engineer, I help companies make their infrastructure more efficient and optimize processes to generate maximum added value. Automation is not just a means to an end, but a key to stabilizing and further developing operational processes. I bring the necessary expertise to master these challenges, combining technical know-how with strong communication skills to work successfully in cross-functional teams.
My strengths are not only in the technical field – I am equally experienced in stabilizing systems and analyzing complex problems. My goal is to develop sustainable, documented solutions that provide long-term benefits. My thirst for knowledge drives me to continuously learn new technologies and use them for my projects.
Technology Stack:
Cloud: Microsoft Azure, Hetzner, OTC
Containers: Docker, Kubernetes, podman, containerD
CI/CD: Jenkins, GitLab, ArgoCD, Azure DevOps
Infrastructure as Code (IaC): Ansible, SaltStack, Terraform
Directory Services: Active Directory, FreeIPA, EntraID, OpenLDAP
Identity and Access Management (IAM): Keycloak
Databases: PostgreSQL, MariaDB, KeyDB, MongoDB
Monitoring: Icinga, Grafana, Loki, CheckMK, Nagios
Source Code Management (SCM): Git, GitHub, Gitea, Azure Repos
Secrets Management: Mozilla SOPS, HashiCorp Vault
Scripting and Programming: Bash, Python, Go
Operating Systems: Linux (Ubuntu, Debian, CentOS, RHEL)
German
Native or bilingual
English
Fluent
Remote only
Primarily works remotely
Experience
- WBS TRAINING AGDevOps EngineerEDUCATION AND E-LEARNINGApril 2024 - July 2024 (3 months)Berlin, GermanyTask:The client's IT infrastructure had grown significantly without addressing technical debt. This led to considerable stability issues that affected application operations. The goal was to migrate the applications to the cloud to make them highly available and avoid future infrastructure problems. Additionally, the existing infrastructure was to be stabilized, and the team prepared for cloud operations.Solution:• I created and presented Architecture Decision Records (ADRs) to align the company's architects on a common solution and establish best practices. The defined standards were then transferred by the Product Owners to the individual development teams.• To prepare for the migration, I built reusable pipelines and trained the DevOps team members in their use.• To stabilize the existing infrastructure, I developed technical solutions and implemented them together with the IT team. I was actively involved in incident management and conducted post-mortems to share findings with colleagues and foster a sense of responsibility for preventive measures.• Additionally, I introduced agile working methods in the DevOps team to promote autonomous work and optimize process flow.Result:• The stability of the existing infrastructure was significantly improved, reducing the number of incidents and enabling faster resolution of new incidents.• Software developers were able to successfully adapt their applications to the requirements of the cloud infrastructure.• The migration of applications proceeded smoothly without significant issues.• The workflow within the DevOps team improved noticeably, leading to a reduction in "Work in Progress." Communication between teams was also optimized, making collaboration more efficient.
- 1&1 Mail und Media GmbHApplication Manager / DevOps EngineerDIGITAL AND ITJanuary 2024 - April 2024 (4 months)Montabaur, GermanyCreation of a Bash script that retried failed synchronization jobs via Hadoop on the Tableau server and executed them successfully.Creation, implementation, and presentation of a concept for modernizing EOL software dependencies within the ETL process.This included an in-house software stack, as well as a Kafka cluster and a Zookeeper cluster.Creation of documentation on internal team artifacts as part of the operational handover to the Application Management Team.Monitoring of various applications and the infrastructure.Maintenance of Gitlab pipelines.Maintenance of various database systems based on MySQL and PostgreSQL.Secret management with HashiCorp Vault.
- BRICK4U GmbHDevOps EngineerDIGITAL AND ITDecember 2021 - December 2023 (2 years and 1 month)Oederan, GermanyArchitecture, operation, and maintenance of multiple Kubernetes clustersself-hosted on Hetzner Cloud VMsin the Open Telekom Cloudon AzureKubernetes cluster management with RancherImplementation of monitoring and alerting with the Grafana/Promtail/Loki/VictoriaMetrics stackIntroduction and implementation of GitOps using ArgoCDCreation and maintenance of various Helm chartsAdministration, maintenance, and updating of all applicationsAutomation and standardization of server provisioning with AnsibleCreation and maintenance of Jenkins pipelinesCreation and maintenance of Bash and Python scripts for automating various tasksCreation of an exporter with Golang for monitoring the SMTP gatewayAdministration and maintenance of multiple databases and database clustersbased on PostgreSQL, TimescaleDB, KeyDB, and MongoDBSecret management with HashiCorp VaultAdministration and management of user accounts and access rights with EntraIDContainerization of various applications
Recommendations
Be the first to recommend Mickey
Help this freelancer shine by sharing your experience working together.
These freelancer profiles also match your criteria
Agatha Frydrych
Backend Java Software Engineer
4.7
(3)
2
Baptiste Duhen
Fullstack developer
4.6
(4)
5
Amed Hamou
Senior Lead Developer
4
(2)
7
Audrey Champion
Web developer
4.3
(3)
4
Education
- IT Specialist for System IntegrationIBM Deutschland Customer Support Services GmbH2020
Certifications
- Certified Kubernetes AdministratorCloud Native Computing Foundation2022
- Certified Kubernetes Security SpecialistCloud Native Computing Foundation2023