Jan Šefrna Email
Cyber Security Specialist @ ČEPRO, a.s.
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Jan Šefrna Location
- Prague, CZ
Jan Šefrna Work
- Cyber Security Specialist @ (January 2023 - Present)
- Analytik Security Operations @ Cybersecurity guard a.s (August 2021 - December 2022)
- FRAUD prevention senior specialist @ (January 2016 - August 2021)
- FRAUD specialist @ (December 2005 - January 2016)
- Cashless top-up stations manager @ (August 2018 - August 2018)
Jan Šefrna Education
- SPŠ Volyně
(Building Construction Technology)
1991-1994
Jan Šefrna Skills
- Checkpoint FW - basic
- Kybernetická bezpečnost
- Microsoft Sentinel
- Kusto query language KQL
- Vyšetřování podvodů
- Zjišťování podvodů
- Analýza dat
- Analytika
- Fraud Detection
- Fraud Investigations
- Troubleshooting
- 3GPP
- Financial Risk
- Fraud Prevention
- Telecommunications
- Mobile Devices
- Telco
- GSM
- Integration
- Customer Experience
- Roaming Fraud
- Mobile Payments
- Social Engineering
- Distribution Fraud
- Corporate Fraud Investigations
- SQL
Jan Šefrna Summary
- Jan Šefrna, based in Prague, CZ, is currently a Cyber Security Specialist at ČEPRO, a.s.. Jan Šefrna brings experience from previous roles at Cybersecurity guard a.s, O2 Czech Republic and LIR Events s.r.o.. Jan Šefrna holds a 1991 - 1994 SPŠ Volyně. With a robust skill set that includes Checkpoint FW - basic, Kybernetická bezpečnost, Microsoft Sentinel, Kusto query language KQL, Vyšetřování podvodů and more. Jan Šefrna has 2 emails on RocketReach.
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