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Felix Gläske
Verified Expert in Engineering
Go Developer
Berlin, Germany
Toptal member since July 21, 2014
Bio
Felix is a software engineer and consultant offering a variety of services around distributed systems, application development and the cloud in general. He's experienced in planning, writing, and operating distributed systems, both in the application and the infrastructure side. He can help you to determine if you can/should move to a cloud provider and assist you on the path of migration.
Portfolio
Tesla
LXD, Kubernetes, Go, Ansible, Pulumi, Terraform
Zeppelin Lab
Amazon Web Services (AWS), Prometheus, Terragrunt, Go, Kubernetes, Back-end
Mindtrustlabs
Terraform, Google Kubernetes Engine (GKE), Google Compute Engine (GCE), Go...
Experience
- Linux - 8 years
- Ansible - 5 years
- Go - 4 years
- Docker - 4 years
- Google Cloud Engine - 4 years
- Kubernetes - 3 years
- Amazon Web Services (AWS) - 3 years
Work Experience
Staff SRE
2021 - 2022
Tesla
- Worked on a self-service portal comparable to EC2 for Tesla's internal use. I was mostly working on the lower system parts, e.g., creating an API around LXD that can be used by the back end to create VMs/containers.
- Created an adapter for Pulumi so we could manage those VMs/containers from Pulumi.
- Served as the lead developer of an inventory service that was responsible for scanning the current state of Linux machines, checking against CVE databases, and allowing a way to remotely update the machines.
- Worked on an automation system that would allow the integration/provisioning of new bare metal servers through the use of Canonical MAAS.
Technologies: LXD, Kubernetes, Go, Ansible, Pulumi, Terraform
DevOps and Back-end Engineer
2019 - 2021
Zeppelin Lab
- Worked on the software development of internal applications that helped monitor and break existing applications' circuits.
- Provided ongoing maintenance and improvement work for the existing Kubernetes-based infrastructure.
- Implemented a new workflow for the internal team of developers to migrate to a GitOps-based workflow.
- Was also part of the team handling operation incidents.
- Was tasked with mentoring two internal employees on DevOps, sharing my knowledge and preparing them to take over my position.
Technologies: Amazon Web Services (AWS), Prometheus, Terragrunt, Go, Kubernetes, Back-end
DevOps Engineer
2019 - 2021
Mindtrustlabs
- Contributed to the operations related initially to one client project of the agency.
- Took on more responsibilities related to operations and infrastructure work, which covered multiple projects within the agency. The goal was to reduce costs by reusing infrastructure and save time by creating reusable blueprints.
- Was involved in back-end development work and used Go for various internal agency projects.
Technologies: Terraform, Google Kubernetes Engine (GKE), Google Compute Engine (GCE), Go, Kubernetes, Back-end, Google Cloud Platform (GCP)
DevOps Engineer
2019 - 2019
Talone.One
- Wrote Kubernetes operators.
- Conducted experimental research.
- Showcased experiments.
- Developed prototypes to production-ready pieces.
Technologies: Google Kubernetes Engine (GKE), Google Compute Engine (GCE), Go, Kubernetes, Back-end
Lead Engineer
2018 - 2019
Cloudradar
- Reviewed potential candidates.
- Reviewed code.
- Designed architecture for a cross-platform monitoring tool.
- Implemented a system monitoring tool.
- Worked on data aggregation.
- Implemented CI/CD workflow.
- Built and hosted Linux packages (rpm/deb).
Technologies: Windows, MacOS, Linux, Go, Back-end
DevOps
2018 - 2018
HeyCar
- Reverse engineered the existing non-documented setup.
- Architected a cluster creation workflow.
- Managed infrastructure with Terraform.
- Deployed and managed clusters on AWS.
Technologies: Terraform, Kubernetes Operations (kOps), Go, Kubernetes, Git, Back-end
Software Engineer
2018 - 2018
Zeidler Legal Services
- Created an MVP for a document sharing system based on IPFS.
- Integrated IPFS into the application.
Technologies: Amazon Web Services (AWS), IPFS, MySQL, Go, Back-end
Lead Developer
2017 - 2018
XBT
- Created system architecture for a cryptocurrency trading system which should be used by in-house traders.
- Created an end-to-end encrypted message system based on ZeroMQ.
- Created APIs consumed by front-end/mobile clients.
- Communicated with multiple exchanges, read data, analyzed data, and forwarded actions based on analysis.
- Handled latency-sensitive application requirements.
- Created and implemented network architectures.
Technologies: ZeroMQ, Linux, Go, Back-end
Software Engineer
2017 - 2017
Epulze
- Designed and implemented a tournament and betting platform.
- Developed testing strategies.
- Integrated with a bunch of external services.
Technologies: Git, PostgreSQL, Go, Back-end
Software Engineer
2016 - 2017
Exaring AG
- Deployed and ran software on Kubernetes.
- Developed software in Golang.
- Integrated and used Prometheus.
- Implemented Slack integrations and microservices.
- Worked with AWS Lambda.
- Created infrastructure with Terraform.
- Created Prometheus exporters.
- Worked on a traffic distribution service.
Technologies: Amazon Web Services (AWS), Linux, Terraform, Slack, Kubernetes, Prometheus, Go, Back-end
Golang Infrastructure Engineer
2016 - 2017
MustWin.com
- Added HashiCorp Consul support to Kubernetes.
- Analyzed Etcd storage implementation and adapted to Consul.
- Worked around implementation differences in Etcd and Consul.
Technologies: Kubernetes, Go, Back-end
DevOps/Back-end Developer
2016 - 2016
Splash/Viorama
- Developed the back end in Golang.
- Managed cluster functionality with Kubernetes.
- Utilized GKE and GCE.
Technologies: Google Kubernetes Engine (GKE), Google Compute Engine (GCE), Kubernetes, Go
System Engineer and Developer
2015 - 2016
Kinsta.com
- Handled system provisioning with Ansible.
- Connected web UI with an Ansible-based back-end system.
- Handled setup/deployment of HA databases, Nginx, and PHP engines.
- Handled web app development with Laravel 5.1.
Technologies: Google Compute Engine (GCE), NFS, Ansible, Google Kubernetes Engine (GKE), Kubernetes, Docker, Ubuntu, PHP, Back-end
DevOps
2014 - 2016
Efa GmbH
- Managed various services like Jira, Confluence, GitLab, and Jenkins.
- Handled testing/staging/production system management with Ansible.
- Developed a Docker-based local development environment.
- Implemented CI/CD integration based on Docker/Jenkins.
- Developed processes to keep systems and Docker files up to date.
- Implemented several monitoring/alerting systems.
- Implemented task runners for HuBot.
Technologies: Ansible, Git, Node.js, Jenkins, Ubuntu, NGINX, Docker, Back-end
DevOps
2014 - 2014
MediaEvent Services GmbH & Co. KG
- Created different application stacks with Amazon OpsWorks.
- Converted plain Bash scripts to Chef cookbooks and recipes.
- Created application deployment processes.
- Analyzed which orchestration tool fits best for the company.
Technologies: Amazon Web Services (AWS), Ansible, Chef, Linux
Software Engineer
2013 - 2014
Performates UG
- Reviewed the old application created by an agency.
- Created an SOA for the new application.
- Created an application with Laravel based on the functionality of the old application.
- Handled administration of the Linux servers.
Technologies: Linux, PHP, Laravel
Software Engineer
2013 - 2014
Semigator GmbH
- Created a back-office application for internal use with AngularJS.
- Created a REST API for the AngularJS application.
Technologies: CodeIgniter, PHP, AngularJS
Software Enigneer
2011 - 2013
Ampelmann GmbH
- Developed an internally used time tracking solution.
- Created methods to export to other services.
- Created the front end with Bootstrap.
- Built an interactive GUI with JavaScript.
Technologies: Bootstrap, jQuery, CodeIgniter, MySQL, PHP
Software Engineer
2011 - 2013
ByteFM
- Implemented a web player with Node.js.
- Handled administration of all servers, including web servers and database servers. Created backup plans and more.
- Maintained a legacy PHP system.
- Protected the website against SQL injections.
- Implemented new features and fixed bugs.
Technologies: MySQL, Node.js, Linux, CSS, PHP
Project History
Ansible Cluster
https://github.com/soupdiver/ansible-clusterAn example configuration for a web app using several servers.
CloudRadar
CloudRadar is the leading edge SaaS server, network, and web monitoring solution, jam-packed with metrics for DevOps and SysAdmins.
Waipu.tv
https://www.waipu.tv/An online service that enables the user to watch television via an app, built for the German market.
UpdateRocks
An auto update service for Electron and other applications.
Education
2010 - 2014
Bachelor's Degree in Applied Computer Science
Hochschule für Technik und Wirtschaft - Berlin
Skills
Libraries/APIs
Node.js, jQuery, ZeroMQ, Terragrunt
Tools
Ansible, Jenkins, Git, NGINX, Google Kubernetes Engine (GKE), Google Compute Engine (GCE), Slack, Terraform, Chef, Subversion (SVN)
Languages
PHP, JavaScript, Go, CSS
Platforms
Docker, Kubernetes, Google Cloud Engine, Linux, Amazon Web Services (AWS), Google Cloud Platform (GCP), Ubuntu, MacOS, Windows, iOS
Frameworks
Laravel, CodeIgniter, Bootstrap, AngularJS
Storage
MySQL, PostgreSQL, Redis, NoSQL, CouchDB
Paradigms
Test-driven Development (TDD)
Other
Back-end, NFS, Prometheus, IPFS, Kubernetes Operations (kOps), LXD, Pulumi
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