Nidhal Bouguatef
Backend Software Engineer @paymenttools
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WORK HISTORY
Backend Software Engineer @paymenttools
Cologne, DE
Developed and maintained backend APIs for payment processing, including the inbound gateway service for POS terminals using ZVT-H protocol- Processed and parsed incoming transactions according to the ISO 8583 standard, extracting data from BMPs for downstream services- Led security design reviews and production readiness reviews for payment gateway services, ensuring compliance with PCI DSS and internal security policies- Conducted load tests on the HSM (Hardware Security Module) to measure peak transactions per second and ensure scalability under high load- Designed Grafana monitoring dashboards and maintained comprehensive service documentation, including architecture diagrams, API specs, and operational procedures- Stack/Tools: Java 17, Spring Boot, PostgreSQL, Grafana, Git, Docker, Kubernetes, GCP, PubSub
EDUCATION
Ecole Supérieure Privée d'Ingénierie et de Technologies - ESPRIT
Computer Science Engineering , Computer Software Engineering
SKILLS
ABOUT NIDHAL BOUGUATEF
Backend Engineer with 5+ years of experience building secure, high-availability, and real-time processing systems. Skilled in API design, microservices, and performance optimization. Passionate about the payment industry, with hands-on experience in POS integrations, ISO 8583, PCI DSS compliance, and high-throughput transaction processing. Always eager to learn and implement new technologies to deliver scalable, reliable financial systems.
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