Open to opportunities

Marius D

@mariusd

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Principal Engineer specializing in Linux systems, resilience, and large-scale automation.

Romania

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What I'm looking for

I seek roles where I can design safety-first, scalable automation and resilience for large RHEL fleets, using Python and Ansible, within collaborative, engineering-driven teams.

I am a Principal Engineer with deep expertise in Linux systems engineering and large-scale automation, focused on resilience, self-healing, and lifecycle management for RHEL-based server fleets. I design Health-as-Code, low-level orchestration, and safety-first automation using Python, Ansible, and Bash to maintain OS stability and high availability in mission-critical environments.

Throughout my career I have implemented self-healing frameworks, Day-1 provisioning pipelines, and hardware-aware integrations (Redfish, IPMI) to automate BIOS, RAID, and firmware tasks at scale. I emphasize modular, reusable Ansible roles and Python libraries, Git-based workflows, and rigorous check-before-act logic to ensure safe, testable automation across thousands of nodes.

Experience

Work history, roles, and key accomplishments

Current

Principal Cloud Developer

Current

Orange Services

Mar 2013 - Present (12 years 11 months)

Designed and implemented self-healing automation frameworks and Health-as-Code modules that detected configuration drift and restored RHEL servers to known-good states at scale, improving resilience and availability across large fleets.

Python Ansible BASH RHEL Redfish Automation Framework

Security Consultant

Provision Software Division SRL

Apr 2013 - Oct 2013 (6 months)

Provided pre-sales engineering for enterprise security products, advising on solutions and performing technical evaluations to support sales processes.

Pre Sales Engineering Network Security Client Engagement

Network and System Engineer

S&T Romania

May 2011 - Apr 2013 (1 year 11 months)

Managed datacenter systems and networks for medium to large enterprises, performing administration, monitoring, and incident response to maintain service continuity.

Network Engineering Monitoring Incident Response Linux