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Hama Lefi

@hamalefi

Message

I build AI-driven intrusion detection systems and investigate fraud, payments risk, and compliance issues.

Tunisia

Message

I've built AI-driven security systems at ANCS and Tunisia Telecom, including federated intrusion detection, Zero Trust protections, SOAR automation, and a Wazuh-based IDS/SIEM platform serving 200+ endpoints. My work cut containment time by 60%, mean detection time by 45%, and forensic query response times to under one second.

At Rapidpace Technologies Tunisia, I investigate fraud, payment disputes, account takeover, KYC/EDD, AML alerts, and chargebacks for a regulated online gaming operator. I combine machine learning, network security, threat investigation, and regulatory controls to reduce cyber and financial risk.

Experience

Work history, roles, and key accomplishments

Current

Customer Risk, Fraud & Payments Agent

Current

Rapidpace Technologies Tunisia

Jul 2026 - Present (2 months)

Monitors player accounts and transactions to identify fraud, collusion, and account takeover attempts. Performs KYC reviews, AML monitoring, and payment investigations, liaising with PSPs to resolve chargebacks.

Fraud Detection KYC AML Payment Risk Chargeback Resolution GDPR Responsible Gaming Investigation Reporting

Cybersecurity AI Research Intern

ANCS (National Agency for Certification & Electronic Securit

Feb 2026 - May 2026 (3 months)

Architected a Federated Intrusion Detection System with Byzantine fault tolerance and Zero Trust Architecture. Delivered an AI-powered SOAR module that reduced containment time by 60%.

Federated Learning Byzantine Fault Tolerant FedAvg Krum Zero Trust Architecture SOAR AI Intrusion Detection Python

Cybersecurity Intern

Tunisia Telecom

Nov 2025 - Jan 2026 (2 months)

Deployed a Wazuh-based IDS/SIEM platform for 200+ endpoints, reducing detection time by 45%. Engineered Elasticsearch pipelines and Kibana dashboards, and integrated threat intelligence connectors.

Wazuh SIEM IDS Elasticsearch Kibana REST APIs Threat Intelligence LLM Python

Education

Degrees, certifications, and relevant coursework

Faculty of Science of Sfax

B.Sc., Computer & Systems Engineering

2025 -

Pursuing a B.Sc. in Computer & Systems Engineering with a specialization in Networks & Information Systems, covering computer networks, distributed architectures, embedded systems, operating systems, and network security.

Faculty of Science of Sfax

Integrated Preparatory Cycle, Computer Science & Systems

2023 - 2025

Completed an intensive two-year preparatory cycle in mathematics, algorithms, physics, computer architecture, and systems engineering, qualifying for direct admission into the engineering degree.