Olaf S.

As a Senior DevOps Engineer at akquinet nx2 GmbH, I design, build, and operate scalable and secure infrastructure across hybrid cloud and on-prem environments. My focus lies on Kubernetes, automation, and cloud-native technologies, with the goal of delivering robust, maintainable, and future-ready solutions. 🔧 Technical Focus: - Building and managing Kubernetes clusters (vSphere, AKS, AKS Engine, Azure Stack Hub) - CI/CD using ArgoCD, Helm, and GitOps workflows - Infrastructure automation with Terraform and Ansible - Developing Kubernetes Operators & internal tools in Go - Running distributed systems including PostgreSQL and Cassandra - Implementing monitoring and alerting for system reliability 🏥 Healthcare Sector Projects (gematik): - Contributed to TI-Messenger, KIM, Basis Consumer, and TI-Gateway - Built secure, GDPR-compliant infrastructure for digital healthcare communication 🤝 Consulting & Collaboration: - Closely collaborate with development teams to ensure smooth integration into containerized environments - Provide technical input for tenders and proposal processes - Translate business and technical requirements into scalable infrastructure solutions 💡 Strengths: - Deep expertise in Kubernetes, Azure, and cloud-native ecosystems - Passion for automation and developer productivity - Experience in compliance-driven sectors with a focus on security - Strong communicator and team player with a solution-oriented mindset

Developing Ansible Tower playbooks and Terraform modules for deploying and configuring Linux systems such as Debian, Ubuntu, Red Hat, and CentOS. Automated network and security configurations using tools like iptables, SNMP, and pfSense, and integrated configuration management solutions like Puppet, Ansible and Git. Designed and implemented scalable VPC networks, firewalls, and auto-scaling solutions on Google Cloud Platform (GCP), while monitoring and optimizing cloud resources with Prometheus, Grafana, and Nagios. Skilled in managing databases, including PostgreSQL, MariaDB, NoSQL databases, and Elasticsearch, with expertise in database performance tuning and root cause analysis. Proficient in building CI/CD pipelines using Jenkins, Helm, Kustomize, and ArgoCD, leveraging GitOps principles to streamline deployments. Enhanced application deployment processes with NGINX, Apache, HAProxy and Kubernetes orchestration. Developed comprehensive monitoring stacks using Prometheus and Grafana and optimized virtual machine performance on Proxmox and VMware vSphere. Advanced storage solutions using DRBD, RAID controllers, and LVM to ensure high availability and reliability. Adept at resolving complex network issues using tools like Wireshark and Netcat. Created training materials and conducted workshops on automation tools such as Ansible and Terraform, as well as Kubernetes, OpenStack, and OpenShift. Passionate about enabling teams to adopt modern DevOps practices and delivering robust, scalable infrastructure solutions.

Developing Ansible Tower playbooks and Terraform modules for deploying and configuring Linux systems such as Debian, Ubuntu, Red Hat, and CentOS. Automated network and security configurations using tools like iptables, SNMP, and pfSense, and integrated configuration management solutions like Puppet, Ansible and Git. Designed and implemented scalable VPC networks, firewalls, and auto-scaling solutions on Google Cloud Platform (GCP), while monitoring and optimizing cloud resources with Prometheus, Grafana, and Nagios. Skilled in managing databases, including PostgreSQL, MariaDB, NoSQL databases, and Elasticsearch, with expertise in database performance tuning and root cause analysis. Proficient in building CI/CD pipelines using Jenkins, Helm, Kustomize, and ArgoCD, leveraging GitOps principles to streamline deployments. Enhanced application deployment processes with NGINX, Apache, HAProxy and Kubernetes orchestration. Developed comprehensive monitoring stacks using Prometheus and Grafana and optimized virtual machine performance on Proxmox and VMware vSphere. Advanced storage solutions using DRBD, RAID controllers, and LVM to ensure high availability and reliability. Adept at resolving complex network issues using tools like Wireshark and Netcat. Created training materials and conducted workshops on automation tools such as Ansible and Terraform, as well as Kubernetes, OpenStack, and OpenShift. Passionate about enabling teams to adopt modern DevOps practices and delivering robust, scalable infrastructure solutions.

Worked with Google Cloud, Openshift, Kubernetes, Openstack, Ansible, Terraform, Jenkins and did normal System Engineering Tasks.

Skilled in analyzing customer requirements to design and implement tailored infrastructure solutions. Experienced in installing and administering Linux systems (Debian and Ubuntu) to provide stable and reliable server environments. Proficient in setting up high-availability clusters using Heartbeat, Pacemaker, and Corosync to ensure system redundancy and uptime. Expertise in leveraging Proxmox for provisioning and managing virtualization hosts, streamlining resource allocation and scalability. Automated processes using CFEngine2, including configuration management and software deployment, to enhance efficiency and consistency. Configured Cisco routers, VLANs, and switch ports to create optimized and secure network topologies. Managed hardware replacement and monitoring, alongside installing and configuring virtual machines to maintain operational reliability. Implemented and managed monitoring solutions with Nagios to ensure system availability and performance, with a focus on proactive issue resolution. Monitored infrastructure, quickly diagnosing and resolving issues to minimize downtime. Ordered, assembled, and integrated new hardware into existing infrastructure while optimizing network configurations for seamless operations. Passionate about delivering scalable, high-performance infrastructure solutions and maintaining system integrity in demanding environments.

During my apprenticeship at city-map, I gained valuable experience in Shopware templating, jQuery, HTML, CSS, and the administration of Linux and Windows servers. My primary focus was on classic server administration, automation, and automated provisioning, enabling efficient and reliable system management. I also honed my skills in responsive design, WordPress, and Typo3, developing user-friendly websites and e-commerce solutions. Proficient in technologies such as HTML5, CSS3, jQuery, and Python, I have applied tools like Docker, Docker Compose, and virtualization platforms such as VirtualBox and Proxmox to enhance development and deployment workflows. My expertise extends to managing servers (Debian, Ubuntu, CentOS) with Apache and Nginx, database systems including MySQL, PostgreSQL, and MariaDB, as well as firewall management, rsync, and Bash scripting. I am experienced with tools like GitHub, GitLab, Bitbucket, and collaborative platforms like Trello and Slack, ensuring seamless teamwork and version control. Additionally, I have worked with Nextcloud for secure collaboration, SEO optimization, Google Analytics, and Adobe Creative Suite for design tasks. My skill set reflects a comprehensive approach to infrastructure management, automation, and web development, with a commitment to delivering high-quality solutions tailored to business needs.

As a Trainee Industrial Mechanic at Wärtsilä Corporation, I gained hands-on experience in the manufacturing and servicing of power sources and equipment for the marine and energy markets. My training focused on key aspects of mechanical engineering, including assembly, maintenance, and troubleshooting of machinery used in power plants and marine applications. I worked with advanced technologies such as multi-fuel, gas, liquid fuel, and biofuel systems, contributing to Wärtsilä’s mission of providing innovative energy solutions. Key responsibilities included: - Assisting in the assembly and maintenance of mechanical systems for marine vessels and energy plants. - Performing routine inspections and troubleshooting mechanical components to ensure operational efficiency. - Collaborating with skilled technicians to learn best practices in machine repair and optimization. Understanding the mechanics of Wärtsilä’s core products, including energy storage systems and propulsion technologies. - Gaining familiarity with Wärtsilä's standards for safety, quality, and sustainability in industrial environments. This role provided me with a strong foundation in industrial mechanics and a deep appreciation for the technologies shaping the future of marine and energy industries. Working with a global leader like Wärtsilä equipped me with skills in precision mechanics, problem-solving, and teamwork within a dynamic and innovative environment.