Owning, designing, securing, maintaining reliability of the cloud based platform environments, increasing developer productivity and growing the infrastructure team horizontally and vertically to 5 engineers
Realised infrastructure cost reduction of 50% by utilizing efficient spot instances
improved PE developer efficiency by 15% with survey led development process
Apr 2021 - Apr 2023
2 years 1 month
Lead Site Reliability Engineer
Workpath
Halved response time of backend while requests were increasing two fold
Moving the product from on premise to native cloud on EKS
Educating engineers on development experience best practices and shaping the organization to adopt these in a formal, repeatable way
Reduce barriers for engineers to deploy and optimize systems, and actively build bridges between security, development, operations, qa, and customer technical support.
Responsible for managerial tasks such as 1:1, performance reviews, participating in interview loops, introducing engineering levels
Sep 2018 - Aug 2020
2 years
Infrastructure Security Engineer
Contentful
Owning and securing the cloud based content platform production environment
Leading, designing and implementing projects across multiple teams such as: secrets management synchronization component as Kubernetes operator in golang, company wide cloud SSO(Okta) roll out across 200 internal apps
Responsible for corporate security best practices, employee training and SDLC
Management of bug bounty program
Conducting job interviews of candidates
Supporting ISO27001 implementation by facilitating process and writing policies
Sep 2017 - Aug 2018
1 year
DevOps Engineer
Funke Digital
Providing general strategic direction of cloud migration/IT security
Migrating production from on premise data center to cloud platform (AWS)
Building and Managing Kubernetes cluster
Migrating micro services from native execution to container environment
Automating infrastructure as code with Terraform, Ansible
Building Jenkins multi branch pipeline
Building one command dev environment using docker-compose, docker-machine
Monitoring system with Grafana
Log Aggregation with ELK Stack
Conducting job interviews of potential new hirees
Mar 2016 - Aug 2017
1 year 6 months
Berlin, Germany
IT System Administrator/DevOps
Bytepark
Planning and execution of VMware ESXi3 to ESXi5 migration.
Deployment of a Selenium Grid test-environment with different Hosts (Windows/Linux) and WebDrivers (PhantomJS, Firefox, InternetExplorer, WebKit)
Designing of the hosting infrastructure with Ansible, based on Docker, Nginx, PHP and MariaDB
Container Orchestration(Ansible, Docker Compose), Designing of CI/CD Pipelines with Gitlab
Designing and applying security concept for internal IT/Infrastructure/Employees
Apr 2015 - Nov 2017
2 years 8 months
IT Consultant/Full Stack Development
Self-Employed
adIQ: Analysis and evaluation of the existing database; optimization of queries and structures
geoberlin: Full development and design of the geoberlin blueprint download app, Rollout of the Redmine Project Management System
JallousDruckhaus: Webdesign and Front End Development for Clients with Ruby(on Rails) and Jekyll
Respatex: Update of the old static page into a mobile-responsive website
System Administration of aforementioned clients(Web and Database)
Jan 2011 - Mar 2015
3 years 3 months
IT Security Test Analyst
T-Systems
Penetration testing of various Systems, Databases(including Oracle, MySQL, MSSQL), Web Applications and Servers.
Analysis and evaluation of IT-Systems, documentation of security vulnerabilites.
Jan 2010 - Dec 2013
2 years
Software Developer
T-Systems
Development of a tool for statistical analysis out of support ticket data.
Implementation as a Joomla Plugin in PHP.
Languages
German
Native
Vietnamese
Native
English
Advanced
Spanish
Elementary
Education
Oct 2011 - Jun 2015
Hochschule für Telekommunikation Leipzig
Bachelor of Science, Duales Studium · Leipzig, Germany
Certifications & licenses
VS-NfD Belehrung
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