Senior System Engineer

BucharestFull-timesenior

OtherSystem Engineer

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Overview

About Qualysoft · 25 years of experience in software engineering, established in Vienna, Austria · Active in Romania since 2007, with office in central Bucharest (Bd.

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OtherSystem Engineer

About Qualysoft

· 25 years of experience in software engineering, established in Vienna, Austria

· Active in Romania since 2007, with office in central Bucharest (Bd. Iancu de Hunedoara 54B)

· Delivering End to End IT Consulting Services - From Team Augmentation and Dedicated Teams to Custom Software Development

· We deliver scalable enterprise systems, intelligent automation frameworks, and digital transformation platforms

· Cross-industry experience by sustaining global players in BSFI (Banking, financial services and insurance), Telecom,Retail & E-commerce, Energy and Utilities, Automotive, Manufacturing, Logitics, High Tech

· Global Presence: Switzerland, Germany, Austria, Sweden, Hungary, Slovakia, Serbia, Romania, and Indonesia

· International team of 500+ software engineers

· Strategic partnerships: Microsoft Cloud Certified Partner, Tricentis Solutions Partner in Test Automation and Test Management, Creatio Exclusive Partner, Doxee Implementation Partner

· Powered by cutting-edge technologies: AI, Data & Analytics, Cloud, DevOps, IoT, and Test Automation.

· Project beneficiaries ranging from large-scale enterprises to startups

· Stable growth and revenue increase year over year, a resilient organisation in volatile IT market conditions

· Quality-first mindset, culture of innovation, and long-term client partnerships

· Global and local reach – trusted by key industry players in Europe and the US

Linux Systems Management: Support and troubleshoot enterprise Linux systems (SUSE, RHEL, Ubuntu) across production environments. Analyze unstable or underperforming systems and propose structured improvements.

On-Premises & Virtualization: Manage on-prem infrastructure and VMware virtualization platforms. Administer and maintain virtual environments supporting critical workloads.

OT & SCADA Integration: Operate within OT environments connected to renewable energy generation systems. Support infrastructure interfacing with SCADA systems, understanding how industrial control architectures interact with underlying IT infrastructure.

Automation & Scripting: Build reliable automation using Bash and Python. Develop scripts for system integration, configuration management, and operational tasks.

Monitoring & Observability: Improve monitoring, logging, and system observability across hybrid infrastructure. Ensure visibility into system health and performance.

Networking & Low-Level Systems: Manage networking components with a strong understanding of TCP/IP fundamentals, process lifecycle, memory, and storage behavior. Work comfortably at OS, network, and hardware interaction layers.

Troubleshooting: Trace failures across layers — from system logs to network flows to physical device responses. Diagnose and resolve issues independently in production environments.

Legacy Systems Support: Maintain and operate legacy Windows systems still in production, including infrastructure connected to industrial hardware and serial communication interfaces.

Documentation & Change Management: Document changes properly and follow structured change management processes: analyze → plan → execute → verify.

Bachelor's degree in Computer Science, Information Technology, or a related field (or equivalent experience)

5+ years of experience in infrastructure engineering or related roles

Strong Linux background (SUSE, RHEL, or Ubuntu)

Hands-on experience with VMware administration and on-prem infrastructure

Experience with Windows Server administration and legacy systems in production

Experience working with legacy systems in production

Strong understanding of TCP/IP, OS internals, and hardware interaction layers

Proficiency in Bash and/or Python for automation

Strong troubleshooting skills and structured, methodical thinking

Ability to operate independently in production environments

Experience in renewable energy or critical infrastructure environments

Understanding of OT security and network segmentation