Infrastructure Engineer (B2B)

Responsibilities

We are looking for an Infrastructure Engineer to support and evolve a large-scale international network environment connecting retail locations across multiple countries.

You will focus on enterprise networking, VoIP, and WLAN infrastructure, ensuring stability of business-critical systems while contributing to standardization and automation initiatives.

Your key responsibilities include

• Operate, maintain, and optimize enterprise network infrastructure, including Cisco-based switching, routing, and store connectivity.
• Support and improve SD-WAN, firewall, and connectivity solutions using technologies such as Meraki, VPN, and MPLS.
• Administer and troubleshoot VoIP and DECT systems (e.g. Cisco CUCM, CUBE, Ascom) in a global environment.
• Design, operate, and troubleshoot WLAN environments, including coverage planning for offices and retail locations.
• Monitor infrastructure using tools such as CheckMK and Meraki Dashboard, ensuring performance, stability, and issue resolution.
• Take ownership of incident management and root cause analysis, supporting escalations and collaborating with internal teams and external partners.
• Contribute to automation and standardization initiatives, including Infrastructure as Code, documentation, and security improvements.

Qualifications

• Completed university degree in Computer Science or a comparable technical field, or equivalent practical experience.
• 3+ years of experience in enterprise network engineering and operations.
• Strong hands-on experience with Cisco networking (switching, routing, core/edge infrastructure).
• Experience with Meraki, SD-WAN, and VPN technologies in enterprise environments.
• Solid understanding of VoIP systems and WLAN infrastructure, including troubleshooting and design.
• Experience with monitoring tools, ITSM processes, and structured incident management.
• Familiarity with automation and Infrastructure as Code (e.g. Terraform, Ansible) is a strong plus.
• Strong communication skills in English and Polish, with readiness to work in a hybrid model in Katowice.

About OBI Smart Technologies

Who are we

We are a joint venture between OBI and Reply Group, responsible for co-designing, building and operating mission-critical digital platforms for commerce, customer service, and omnichannel retail.

Our mission

"We unite technology leadership with deep retail vision to implement standardized processes and scalable digital products that drive efficient support for one of Europe’s largest DIY retailers. Leveraging proven best practices, we advance the internationalization of products and the digital mindset of our partners, delivering consistent and business-critical solutions to support the targets of our customer."