Network Engineer

About us

Monri Payments is a leading Croatian fintech company providing advanced, secure, and reliable payment solutions for merchants across the region. Our infrastructure supports both online and in-store card payments, handling hundreds of millions of transactions annually.

As we scale our services across multiple countries and expand our multi-data center footprint, we are strengthening our Infrastructure & Platform Engineering team with a Network Engineer who will help design, maintain, and secure the critical network systems that power our products.

If you want to work on high-availability architectures, modern connectivity solutions, regional expansion projects, and PCI DSS compliant environments - this is the role for you.

Responsibilities

What You’ll Do

• Network Architecture & High Availability: Design secure, scalable LAN/WAN topologies and contribute to establishing high-availability IP solutions (BGP-based Anycast, AWS Route53, multi-DC routing) for mission-critical payment platforms.
• Operations & Maintenance: Install, configure, test, maintain, and troubleshoot network software, and all related infrastructure across multiple data centers.
• Note: Hardware maintenance is handled by the network technician team.
• Performance & Reliability: Monitor network health, optimize throughput, ensure availability, and participate in lifecycle management and capacity planning.
• Security & Compliance: Perform semi-annual firewall rule reviews in all PCI DSS-scoped data centers and conduct monthly access rights reviews and updates of third-party connection lists.
• Documentation: Maintain accurate, up-to-date network diagrams and documentation for all Monri systems and services across all data centers.
• Incident Response: Diagnose and resolve connectivity issues, perform root cause analysis, and implement preventive improvements.
• Cross-Team Collaboration: Work closely with network technicians, system engineers, developers, security teams, and external partners to ensure seamless service delivery.

• The position is based in Zagreb, Croatia, with a hybrid work model.

Requirements

Qualifications

• 3 years of experience as a Network Engineer or Network Administrator.
• Strong understanding of LAN/WAN networking principles.
• Hands-on experience with routing, switching, and network services (DNS, VPN, VLANs, etc.).
• Working knowledge of modern protocols and standards (TCP/IP, BGP, OSPF, etc.).
• Experience with diagnostic tools such as Wireshark or tcpdump.
• Strong troubleshooting skills with a structured, analytical approach.
• Linux/Unix experience.

Nice to have

• CCNA, CCNP or equivalent certifications.
• Experience with Cisco switching platforms.
• Experience with Fortinet routers, switches, and wireless infrastructure.
• Familiarity with Mikrotik RouterOS.
• Experience with enterprise monitoring systems (Nagios, Zabbix, Grafana, LogInsight…).
• Basic Windows Server knowledge (AD, DHCP, DNS, NPS).
• Experience with Linux administration.
• Ability to write scripts to automate routine network operations.

Working conditions

Why Monri Payments?

• Cutting-Edge Challenges: Work on mission-critical infrastructure powering millions of secure payment transactions.
• Impact & Ownership: Help shape the next generation of Monri’s multi-DC payment network architecture.
• Collaborative Culture: Join a highly skilled engineering team that supports cross-learning and professional growth.
• Competitive Compensation: Attractive salary, benefits, and support for professional certifications