Senior Security Engineer (Security Operations & Automation)

Monri Payments, founded in 2017, started as a small startup with a bold vision: to simplify and enhance digital payments. As early as 2019, with a team of just 10 employees, Monri developed an omnichannel payment orchestration platform, laying the foundation for rapid growth. Shortly after, Monri further expanded its portfolio by introducing cash register software solutions, becoming a true one-stop shop for business operations in the HoReCa industry.

Today, Monri employs more than 200 people and operates in 10 markets: Croatia, Serbia, Bosnia and Herzegovina, Montenegro, Slovenia, North Macedonia, Albania, Kosovo, Romania, and Moldova - supporting over 15,000 merchants, with a continuous focus on international expansion.

For its innovations in payments, Monri received a special recognition from Mastercard in 2023 for multi-sensory transaction confirmation, and in 2024 was awarded the “Deloitte Impact Star” recognition for its contribution to business development, society, and sustainability.

We're looking for a hands-on Senior Security Engineer to implement and maintain technical security controls across our payment and core infrastructure, and to automate compliance evidence collection across our security tooling.

Key Responsibilities:

• Configure and harden systems, network devices, and application platforms to meet payment security standards (PCI DSS v4.0.1)
• Build automation workflows and API integrations to collect and normalize security telemetry
• Maintain integrity monitoring and asset inventory synchronization across cardholder data environments
• Run vulnerability scans, manage PAM solutions, and drive remediation with DevOps/Infra teams

Requirements:

• Degree in Computer Science, Electrical Engineering, Information Technology, or equivalent practical experience
• 5+ years in security engineering (Linux/Windows, Network Security, Cloud)
• Strong scripting skills (Python, Shell), REST APIs, JSON/YAML
• Practical knowledge of PCI DSS, vulnerability management, SIEM and PAM
• Relevant certification from Security domain are plus

What do we offer:

• Opportunity to work in a fast-growing fintech environment
• Dynamic team culture focused on innovation, learning, and impact
• Competitive compensation and development opportunities
• Flexible working hours
• Hybrid form of work
• Annual medical examination
• Travel and meal allowance
• Christmas allowance, gift for a child
• Multisport or PassSport card (50:50 model)
• Modern office space (free office refreshments & dog friendly office)