AeroLeads people directory · profile

Efthymios Kelesmitos Email & Phone Number

Penetration Tester at NVISO Security
Location: Thessaloniki Metropolitan Area, Greece 3 work roles 2 schools
LinkedIn matched
✓ Verified Jul 2026 3 data sources Profile completeness 86%

Contact Signals

LinkedIn Profile matched
3 free lookups remaining · No credit card
Current company
NVISO Security
Role
Penetration Tester
Location
Thessaloniki Metropolitan Area, Greece
Company size
100 employees

Who is Efthymios Kelesmitos? Overview

A concise factual answer block for searchers comparing this professional profile.

Quick answer

Efthymios Kelesmitos is listed as Penetration Tester at NVISO Security, a with 100 employees, based in Thessaloniki Metropolitan Area, Greece. AeroLeads shows a matched LinkedIn profile for Efthymios Kelesmitos.

Efthymios Kelesmitos previously worked as Red Teamer at Hellenic Air Force (Haf) and L1 SOC Analyst at Encode Is Now Obrela Corporation. Efthymios Kelesmitos holds Bachelor'S Degree, Computer Science from International Hellenic University.

Company email context

Email format at NVISO Security

This section adds company-level context without repeating Efthymios Kelesmitos's masked contact details.

NVISO Security

Review company-level records connected to Efthymios Kelesmitos before choosing the right outreach path.

View email format View company profile Management contacts
Profile bio

About Efthymios Kelesmitos

Penetration tester. My proficiency extends to both Windows and Linux systems, and I actively engage in Capture The Flag (CTF) competitions, demonstrating a keen interest in offensive security and ethical hacking. I participate in various platforms, such as HackTheBox and Tryhackme, to refine and apply my skills.

Current workplace

Efthymios Kelesmitos's current company

Company context helps verify the profile and gives searchers a useful next step.

NVISO Security
Nviso Security
Penetration Tester
brussels, brussels hoofdstedelijk gewest, belgium
Website
nviso.be
Employees
100
AeroLeads page
Company profile
View company profile Email format
3 roles

Efthymios Kelesmitos work experience

A career timeline built from the work history available for this profile.

Red Teamer

Hellenic Air Force (Haf)

Stationed at the Directorate of Cyber Defense within the Hellenic National Defense General Staff.

Oct 2023 - Sep 2024

L1 Soc Analyst

Encode Is Now Obrela Corporation

Athens Metropolitan Area

• Continuously monitoring the security alerts queue• Triaging security alerts by conducting investigations using QRadar, Sentinel, and EDRs (Falcon Insight, ATP, Carbon Black)• Collecting data and context required to create incident cases and initiate Level 2 escalation

Sep 2022 - Sep 2023
Team & coworkers

Colleagues at NVISO Security

Other employees you can reach at nviso.be. View company contacts for 100 employees →

MT Moritz Thomas Moritz Thomas Colleague at Nviso SecurityMannheim, Baden-Württemberg, Germany View → TG Theodoros Georgopoulos Theodoros Georgopoulos Colleague at Nviso SecurityAthens, Attiki, Greece View → ST Sebastian Tischer Sebastian Tischer Colleague at Nviso SecurityMunich, Bavaria, Germany View → NP Nikoletta Papadopoulou Nikoletta Papadopoulou Colleague at Nviso SecurityGreece View → CS Carina Schwabe Carina Schwabe Colleague at Nviso SecurityGermany View → NA Nikos Alexopoulos Nikos Alexopoulos Colleague at Nviso SecurityGreece View → BK Bruno Kokthi Bruno Kokthi Colleague at Nviso SecurityAthens, Attiki, Greece View → MV Milan Velle Milan Velle Colleague at Nviso SecurityHoeilaart, Flemish Region, Belgium View → TA Thomai Al-Nasser Thomai Al-Nasser Colleague at Nviso SecurityGreece View → JG Jérémie Gueben Jérémie Gueben Colleague at Nviso SecuritySoignies, Walloon Region, Belgium View →
2 education records

Efthymios Kelesmitos education

FAQ

Frequently asked questions about Efthymios Kelesmitos

Quick answers generated from the profile data available on this page.

What company does Efthymios Kelesmitos work for?

Efthymios Kelesmitos works for NVISO Security.

What is Efthymios Kelesmitos's role at NVISO Security?

Efthymios Kelesmitos is listed as Penetration Tester at NVISO Security.

Where is Efthymios Kelesmitos based?

Efthymios Kelesmitos is based in Thessaloniki Metropolitan Area, Greece while working with NVISO Security.

What companies has Efthymios Kelesmitos worked for?

Efthymios Kelesmitos has worked for Nviso Security, Hellenic Air Force (Haf), and Encode Is Now Obrela Corporation.

Who are Efthymios Kelesmitos's colleagues at NVISO Security?

Efthymios Kelesmitos's colleagues at NVISO Security include Moritz Thomas, Theodoros Georgopoulos, Sebastian Tischer, Nikoletta Papadopoulou, and Carina Schwabe.

How can I contact Efthymios Kelesmitos?

You can use AeroLeads to view verified contact signals for Efthymios Kelesmitos at NVISO Security, including work email, phone, and LinkedIn data when available.

What schools did Efthymios Kelesmitos attend?

Efthymios Kelesmitos holds Bachelor'S Degree, Computer Science from International Hellenic University.

Find 750M verified contacts

Search by job title, company, industry, location, and seniority. Export verified B2B contact data when you need it.