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On-Premise Infrastructure Engineer

On-Premise Infrastructure Engineer
B2B140 - 170 PLN NET PER HOUR
LOCATION + Remote Poland: Kielce, Kraków, Wrocław
Apply now

VirtusLab is a leading European software consulting and engineering company. Our mission is to craft clean code and practical solutions with precision and purpose. We foster a dynamic culture rooted in strong engineering, a sense of ownership, and transparency, empowering professionals to make a substantial impact in the software industry.

Project Overview & Engagement Profile

The cooperation involves maintaining, scaling, and optimising core on-premise infrastructure for a major global investment bank. The primary focus centers on driving the reliability and efficiency of essential developer tools and services — including Jenkins, BitBucket, and BuildBarn — for an on-prem installation serving a user base of over 10,000 developers. The delivery of services relies on strong system administration, deep networking knowledge, and automation. While 99% of the infrastructure is Linux-based, cross-ecosystem support covering Linux, Windows, and macOS environments is required. For engagements at a Senior level, the scope extends to leading the diagnosis and resolution of complex performance bottlenecks across this large-scale infrastructure.

English Advanced
Linux & System Administration Advanced
Networking (Firewalls, DNS, VPC/VLANs) Advanced
Jenkins / Bitbucket / BuildBarn Advanced
Python Advanced
CI/CD Advanced
PowerShell / Windows administration: Regular
macOS infrastructure support Basic
View available projects
Project
Emesai
Project scope

Partnering with the core developer tooling team responsible for 30k+ developers within one of the largest investment banks. The focus is specifically directed toward LLM-based tools for developers — including evaluation, trials, onboarding, and customisation. Following the initial test phase, the project now scales to onboard thousands of new developers each week onto AI tooling. This involves close collaboration with vendors and in-house teams to ensure tools like Claude Code or Copilot CLI deliver maximum value. Deliverables include working on automations, setup, Model Context Protocols (MCPs), and user support via running trials, validation checks, and handling technical escalations from existing support teams.

Tech stack

Python, MCP, AI-agents, scripting, git, AWS, Azure, JVM, C++, Bazel

 

Tools and Workflow

Claude Code, Amp, Intellij, git, Kanban, Windows via Citrix, JIRA, BitBucket

Challenges

  • Customising LLM tools to seamlessly fit the client’s environment and workflows.

  • Integrating existing and new context sources, including various MCPs.

  • Tracking user requirements and building a generic mechanism adaptable across multiple teams.

  • Balancing stringent enterprise security requirements with practical user experience.

 

Team

4 people in the VL team, collaborating with larger distributed teams across the Americas, Europe, and Asia.

Required Expertise and Capabilities:

  • Solid background in Linux administration and a deep understanding of networking concepts.

  • Hands-on experience in managing and optimising on-premise developer tools (such as Jenkins, BitBucket, and BuildBarn).

  • Proficiency in scripting languages (Bash and Python; basic knowledge of PowerShell is an asset) for automating administrative tasks.

  • Strong analytical skills for diagnosing, troubleshooting, and solving system performance problems at scale.

  • Capability to provide multi-platform environment support (primarily Linux, with secondary support for Windows and macOS).

  • Commercial experience operating within large-scale Enterprise or financial environments is highly preferred.

  • At least 5 years of commercial experience in system administration or infrastructure engineering.

  • English language proficiency at a minimum [B2/C1] level, ensuring seamless technical communication.

A few perks of being with us

Building tech community
Building tech community
Flexible hybrid work model
Flexible hybrid work model
Home office reimbursement
Home office reimbursement
Language lessons
Language lessons
MyBenefit points
MyBenefit points
Private healthcare
Private healthcare
Training Package
Training Package
Virtusity / in-house training
Virtusity / in-house training
Access to the above perks is optional and completely voluntary for B2B contractors

Apply now

On-Premise Infrastructure Engineer

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Please submit a CV no longer than two pages.
Current recruitment process: For the purpose of recruitment, I hereby give consent as per art. 6.1.a of the GDPR to processing of my personal data (other than that listed in art. 22 [1] § 1 Labour Code) by Virtus Lab Sp. z o. o. (as Co-Controller for a full list of joint controllers, see Privacy Policy) with its headquarters at Szlak 49 Street, 31-153 Cracow. At the same time I accept the Privacy Policy of the Data Controller. I acknowledge that my personal data will be kept for the duration of the recruitment process and as regards any potential claims, for the period of 36 months maximum, and that I have the right to access this data or have it rectified or deleted on demand. This consent can be withdrawn at any time, but this withdrawal does not make the previous processing illegal*.(Required)*

Current recruitment process: For the purpose of recruitment, I hereby give consent as per art. 6.1.a of the GDPR to processing of my personal data (other than that listed in art. 22 [1] § 1 Labour Code) by Virtus Lab Sp. z o. o. (as Co-Controller for a full list of joint controllers, see Privacy Policy) with its headquarters at Szlak 49 Street, 31-153 Cracow. At the same time I accept the Privacy Policy of the Data Controller. I acknowledge that my personal data will be kept for the duration of the recruitment process and as regards any potential claims, for the period of 36 months maximum, and that I have the right to access this data or have it rectified or deleted on demand. This consent can be withdrawn at any time, but this withdrawal does not make the previous processing illegal*.

(Required)
Future recruitment processes: I hereby give consent as per art. 6.1.a of the GDPR to the processing of my personal data by Virtus Lab Sp. z o. o. (as Co-Controller for a full list of joint controllers, see Privacy Policy) with its headquarters at Szlak 49 Street, 31-153 Cracow, in order to use this data in future recruitment processes. I hereby agree to possible storage of my personal data for this purpose in Virtus Lab’s database for a period of 36 months maximum. At the same time I accept the Privacy Policy of the Data Controller. I acknowledge that I have the right to access this data or have it rectified or deleted on demand. This consent can be withdrawn at any point, but this does not make the previous processing illegal*.

Future recruitment processes: I hereby give consent as per art. 6.1.a of the GDPR to the processing of my personal data by Virtus Lab Sp. z o. o. (as Co-Controller for a full list of joint controllers, see Privacy Policy) with its headquarters at Szlak 49 Street, 31-153 Cracow, in order to use this data in future recruitment processes. I hereby agree to possible storage of my personal data for this purpose in Virtus Lab’s database for a period of 36 months maximum. At the same time I accept the Privacy Policy of the Data Controller. I acknowledge that I have the right to access this data or have it rectified or deleted on demand. This consent can be withdrawn at any point, but this does not make the previous processing illegal*.

Sylwia Gracz
Coordinated by
Sylwia Gracz
IT Talent Acquisition Specialist
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On-Premise Infrastructure Engineer
B2B140 - 170 PLN NET PER HOUR
LOCATION + Remote Poland: Kielce, Kraków, Wrocław
Apply now
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