Curriculum vitae

Platform and Infrastructure Management #

• Migrate GCP Architecture to new Provider
• Improve CI/CD Workflow

Platform and Infrastructure Management #

• Ensured 24/7 platform operation
• Upgraded servers to accommodate increased needs
• Verified backup integrity and security
• Upgraded 300 Raspberry Pis in the field

Data Management and Analysis #

• Created a data archive system for analysis
• Maintained distributed code on edge devices
• Debugged and improved the codebase

Backend Architecture Design and Microservices Development #

• Designed a scalable backend architecture with a focus on Event-Driven Architecture utilizing NATS.
• Developed microservices in Go to enhance system efficiency and modularity

Development Infrastructure Setup #

• Established on-premise development infrastructure, including GitLab CI/CD pipelines and ArgoCD for GitOps

Developer Empowerment #

• Created essential developer tools:
  • NATS-compatible Event-Driven library
  • Compile-time Dependency-Injection for Go
  • Protobuf message definitions

Infrastructure Management #

• Engineered a Hybrid-Cluster Management Platform using Rancher for resource optimization

Knowledge Transfer #

• Provided mentorship to developers, fostering microservices development skills and promoting agile development practices

Infrastructure Maintenance and Migration #

• Successfully maintained and orchestrated the migration of existing infrastructure
  • Migrated from VMWare ESXi to Proxmox, optimizing resource management and virtualization
  • Transitioned from Cisco IOS to Mikrotik RouterOS, enhancing network performance and management

Email Infrastructure Enhancement #

• Improved email infrastructure by replacing the SPAM filter with Proxmox Mailgateway, enhancing email security and filtering capabilities

Microsoft Exchange Upgrade #

• Executed a seamless migration from Microsoft Exchange 2013 to 2016, ensuring minimal disruption and improved email system performance

Security and Organizational Enhancement #

• Enhanced the security of the Active Directory system and introduced a revised organizational structure, strengthening data access controls and optimizing resource allocation

VPN Implementation #

• Successfully implemented Site-to-Site and VPN access solutions, ensuring secure and reliable remote network connectivity for the organization

IT Infrastructure Creation and Management: #

• Established and maintained the IT infrastructure, including:
  • Set up a hypervisor cluster using Proxmox
  • Designed network architecture with Site-to-Site connections and dynamic routing
  • Implemented a multi-tenant isolated architecture on-premise

Development of Edge Yocto Devices and Cloud Management: #

• Served as a Software Architect and DevOps Engineer for edge Yocto devices:
  • Configured a Hybrid-Cloud infrastructure with Rancher
  • Created a development architecture with GitLab CI/CD, a build server for Yocto, and development/staging environments
  • Designed fundamental embedded software modules, including libraries for NATS, MQTT, and containerd, along with Dependency-Injection in Go and Protobuf message definitions
  • Developed backend architecture, implementing services in C#, MQTT and S3 libraries, and integrating Certificate generation with the Kubernetes API
  • Established CI/CD pipelines for C++, C#, Go, and Yocto codebases
  • Provided training to developers in service-oriented architecture development

Platform for Ordering Machining Parts #

• Assumed the role of Project Manager and Fullstack Developer for the platform:
  • Maintained and evolved the architecture, migrating from a monolithic to a service-oriented architecture
  • Developed backend services using NestJS
  • Managed sprints, engaged with stakeholders, and coordinated milestones
  • Gathered and integrated stakeholder requirements into project planning, conducting planning meetings
  • Set up staging and production environments to ensure smooth operations

High-Performance Visual Inspection System for Pharmacy Companies (DevOps Engineer): #

• Designed a highly scalable backend architecture for a visual inspection system, including:
  • Utilizing event-driven architecture with Kafka
  • Designing a monolith with service-oriented services for loose coupling
  • Developing the backend in plain TypeScript with MySQL, Kafka, and S3 integration
• Established and maintained the development platform, incorporating GitLab for code versioning and implementing CI/CD pipelines for the backend
• Set up tools to simplify development, such as automatic schema import into Kafka Schema Registry and Ansible scripts for edge device updates
• Developed software modules for edge devices, including migrating existing Python 2 code to Python 3 and creating an automatic certificate signing and revocation software
• Created a custom Alpine Linux for Raspberry Pi 3, including a Bash script to build the custom Alpine Linux with necessary software modules and handling booting via TFTP and U-Boot
• Set up a highly scalable on-premise hybrid-cloud management platform using Rancher, maintaining four different locations, and integrating it into GitLab

Web Organigram Software for Pharmacy Company (Full-Stack Developer): #

• Developed a web-based organigram software for a pharmacy company
• Designed an algorithm to print organigrams, involving extracting organigram data from MySQL and generating custom PowerPoint presentations using JavaScript
• Set up deployment using Docker

IT Infrastructure Creation and Management: #

• Established a hypervisor cluster using Proxmox
• Designed network architecture with Site-to-Site connections, dynamic routing, and VPN access for employees
• Deployed a Big-Data infrastructure for a machine-learning labeling pipeline

IT Infrastructure Support for Local Businesses: #

• Provided essential IT infrastructure support to local businesses.

Key Projects (Detailed in Contracts): #

• Managed significant projects detailed in the contracts section.

Traffic Sign Recognition with Deep Learning (Machine-Learning Intern): #

• Undertook an internship role as a Machine-Learning Engineer
• Designed and implemented a neural network for traffic sign recognition
  • Utilized Python with the Keras framework for model development
  • Executed the neural network on an Nvidia Jetson TX2 board, showcasing proficiency in both machine learning and hardware integration

Collecting and saving LIDAR/GPS‑Data using an electronically driven bus #

• Role as working student
• Setup backend architecture in Azure to collect data
  • ROS Framework to transmit data to azure
  • Remote management of embedded computer in bus

Anti-virus Infrastructure Implementation: #

• Worked as a working student
• Conducted research and successfully deployed an anti-virus infrastructure for the company

Project Infrastructure Maintenance (Working Student): #

• Held a role as a working student
• Responsible for the upkeep of Linux servers and the deployment of Docker containers within the project infrastructure

Maintenance of Production Plants (Industrial Plant Maintenance Worker): #

• Served as an Industrial Plant Maintenance Worker
• Ensured 24/7 operation of production plants through meticulous maintenance efforts
• Specialized in optimizing Siemens S7 PLC to minimize cycle time on the motor assembly line

Distributed Analyzing Platform Implementation (System Administrator): #

• Operated as a System Administrator
• Developed and implemented a distributed analyzing platform, including:
  • Managed RDP-enabled Windows VMs for effective operations
  • Established a software stack with Siemens SIMATIC S7 for streamlined data analysis
  • Orchestrated software updates efficiently using OPSI