Sys Admin + Python Infrastructure Engineer

Virtus Lab sp. z o.o. (Ltd.); Kraków; On-site; PLN 180,000 - 240,000; Full time

Job summary

VirtusLab sp. z o.o. (Ltd.) is seeking a Senior Sys Admin + Python Infrastructure Engineer in Kraków to enhance Linux-based infrastructure, automate with Python, and harden graph database environments. This role involves working with Kafka, Kubernetes, and Java-based data pipelines.

You will collaborate with technical stakeholders, own delivery outcomes, and contribute to secure, scalable systems. English proficiency at B2/C1 level is required for seamless technical communication.

Qualifications

• Solid background in Linux administration and networking concepts.
• Proven expertise using Python for infrastructure automation and tooling.
• Advanced analytical skills to diagnose and resolve complex system issues at scale.
• 5+ years of commercial experience in system administration or infrastructure engineering.
• English proficiency at B2/C1 level or higher for technical communication.

Responsibilities

• Administering Linux/Unix environments and automating infrastructure using Python.
• Hardening graph database environments and implementing strong security standards.
• Mapping dependencies across databases, data pipelines and enterprise systems.
• Engineering and optimizing data processing pipelines using Python and Java components.
• Collaborating with stakeholders and driving delivery outcomes independently.

Skills

Linux Administration

Python scripting

Networking concepts

English communication

Security best practices

Tools

Kafka

Kubernetes

GraphDB Neo4j

GraphQL

Job description

This engagement involves key infrastructure delivery built around graph databases (GraphDB / Neo4j). The focus combines high-level systems engineering and infrastructure automation with proactive security standards and system architecture optimization.

Key Areas of Delivery:

• -Infrastructure Operations & Automation: Administering Linux/Unix environments and engineering infrastructure automation utilizing Python.
• -Database Hardening & Security: Hardening graph database environments, implementing top-tier security standards, and designing monitoring and alerting mechanisms.
• -Dependency Mapping: Analyzing and mapping technical dependencies between databases, data pipelines, and enterprise-wide systems.
• -Data Infrastructure: Engineering and optimizing data processing pipelines integrating Python- and Java-based components.
• -Technical Driving & Autonomy: Collaborating independently with technical stakeholders, driving solutions, and owning delivery outcomes.

Sys Admin + Python Infrastructure Engineer (Senior)

Details:

Sys Admin + Python Infrastructure Engineer - Careers VirtusLab

Linux / Unix Administration - Advanced

Python - Advanced

Kafka / Streaming Data - Regular

Kubernetes - Regular

Java (Data pipelines / APIs) - Nice to have

GraphDB (Neo4j) / GraphQL - Nice to have

Expected Capabilities & Expertise:

• Solid background in Linux administration and deep understanding of networking concepts
• Proven expertise in using Python for infrastructure automation, scripting, and system tool development
• Advanced analytical capabilities for diagnosing, troubleshooting, and resolving complex system performance issues at scale
• 5+ years of commercial experience in system administration or infrastructure engineering
• English proficiency at B2/C1 level or higher, enabling seamless technical communication

Nice to Have:

• Practical experience with Kafka
• Working knowledge of Java
• Hands-on experience with Graph Databases (e.g., Neo4j) or query-layer technologies (GraphQL APIs, Semantic Views)
• Experience in building or maintaining data ingestion pipelines
• Hands-on knowledge of Kubernetes
• Familiarity with the Snowflake data platform
• Solid understanding of networking topologies and firewall technologies