Profile Overview - Mia Evelyn Hallas

Enthusiastic DevOps & Linux/FOSS engineer with experience in system architecture, automation, containerization, and creating custom Linux distributions. Strong background in infrastructure management, open-source tooling, and full-stack system operations.

Languages

• German - Native
• English - Near-native
• Python - Intermediate (B2)

Technical Skills

Linux & FOSS

• Linux administration (Debian, Arch, Alpine, KISS-Linux, custom distros)
• Shell scripting (bash, sh)
• Programming Languages (Python, C, Rust, Perl)
• Systemd / OpenRC
• Filesystems: ext4, btrfs, ZFS (basics)
• Kernel configuration (basics)
• Package build systems (APK, Pacman, KISS-pkg)

DevOps & Infrastructure

• Containerization & Orchestration
• Docker, Docker Compose
• Multi-node Docker clusters

• Container optimization (size reduction, security hardening)

• CI/CD & Automation

• GitLab CI/CD, GitHub Actions
• Automated build pipelines (testing, linting, security checks)
• Deployment automation for services, web applications, and infrastructure

• YAML-based configuration workflows

• Infrastructure-as-Code & Configuration Management

• Declarative system configuration
• Automated service provisioning

• Reproducible environments (containers, scripts, custom ISOs)

• Monitoring & Observability

• Prometheus (metrics collection)
• Grafana dashboards
• journald & centralized logging

• Log rotation, alerting, and service health monitoring

• Networking & Security

• Firewall configuration (iptables, ufw)
• TLS/SSL certificate automation (ACME, Let's Encrypt)
• Reverse proxies (nginx, Caddy)

• Hardening of Linux systems & services

• Version Control & Collaboration

• Git workflows (GitFlow, trunk-based)
• Code reviews, merge request workflows
• Automated dependency updates and security scanning

Networking

• Authoritative DNS administration
• Email server operation (Postfix, Dovecot)
• VPN setups (OpenVPN, WireGuard)
• Secure remote access & SSH hardening
• Linux Kernel hardening

Web & Services

• Website deployment & maintenance
• Custom search engine hosting
• API integration
• Service lifecycle management

Work Experience

Custom Homepage Developer

Internisten Tulln - 10/2025–present - Development and deployment of a custom medical practice website - Optimization for performance, accessibility, and security - Fully containerized hosting environment with automated updates

DevOps Engineer

SVD Büromanagement GmbH, 1200 Vienna - 09/2024–12/2025 - Designed and maintained CI/CD pipelines for internal applications - Managed containerized services, development environments, and production workloads

System Architect

Naturhistorisches Museum Wien, 1010 Vienna - 03/2023–08/2024 - Maintained Linux-based production and development servers - Designed backend systems and structured service architecture - Improved server reliability, documentation, and system performance - Collaborated with cross-functional team members to modernize infrastructure - Set up monitoring dashboards and alerting systems - Implemented secure networking, access controls, and automated deployments - Created internal tooling for developers and streamlined workflows

Junior DevOps Engineer

Manz Solutions GmbH, 1010 Vienna - 04/2022–02/2023 - Automated deployment processes for web services - Assisted in containerization of legacy applications - Participated in monitoring and incident response routines

Intern – Junior IT Manager

LOOP New Media GmbH, 1010 Vienna - 12/2021–02/2022 - Supported internal IT operations - Assisted with troubleshooting, hardware setup, and small-scale automation tasks

Independent & Long-Term Projects (2020–present)

• Setup & maintenance of:
• Docker cluster
• Authoritative DNS server
• Email server
• Homepage hosting
• Custom search engine
• Creation and ongoing development of a custom Linux distribution based on KISS-Linux (minimal, source-based, high-control environment)
• Personal DevOps lab for testing and evaluating containerization, CI/CD systems, and infrastructure automation

Additional Experience

• 2019 - Media support for online courses at JKU
• 2017–present - IT administrator for a psychological practice (1150 Vienna)
• 07/2017 - Internship, AKH Vienna, Dept. of Human Genetics
• 07/2016–08/2016 - Internship, ELRA Elektronische Bauelemente, 1020 Vienna

Education

Certifications

• Linux Professional Institute - Essentials (2021)

Studies

• 2019–2021 - Artificial Intelligence, JKU Linz
• 2018–2019 - Smart Engineering & Production Design, FH St. Pölten
• 2017–2018 - Medical & Pharmaceutical Biotechnology, IMC FH Krems

School Education

• 2014–2017 - Humboldt Maturaschule (Matura 02/2017)
• 2007–2014 -
• Ursulinen Gymnasium (1–2)
• Keimgasse gifted class (3–4)
• Gymnasium Perchtoldsdorf (5–7)
• 2003–2007 - Volksschule Perchtoldsdorf