Cybersecurity Solutions Architect

Konstantinos
Tserkezidis

Network Security Engineer/Pre-Sales & Technical Advisor

I turn complex security requirements into clear, defensible solutions — and help clients adopt them with confidence.

Athens, Greece · konstantinos@tserkon.com
Get in touch
about

Engineering depth, with a consultant's instinct.

I'm a cybersecurity professional who pairs hands-on network and security engineering with a consultative, client-facing approach. Day to day, I engage public-sector and enterprise clients to understand their environments, design solutions that fit, and recommend the right technologies for the job.

What I enjoy most is the translation work — taking a tangle of technical constraints and turning it into an architecture a stakeholder can actually understand and decide on. Presentation comes naturally to me; I spent years on stage before I moved into security, and that comfort in front of a room carries straight into client and executive conversations.

I'm currently completing a BSc in Computer Science (Cybersecurity) and steadily widening my range across the security portfolio — from network defence to offensive testing.

experience

Where I've delivered.

2024 — Present

Network Security Engineer — Solution Delivery & Advisory

I.C.T Logicom Solutions
  • Engage public-sector and enterprise clients — including the Ministry of Environment & Energy, the Hellenic Transplant Organisation, and the City Hall of Ymittos — to understand their environments and shape tailored network and security solutions.
  • Run requirements discovery and recommend additional solution components (switches, IP telephony, SFP modular optics) based on customer needs, expanding solution scope and value.
  • Design and implement scalable Cisco architectures from SMB to enterprise scale, translating technical requirements into resilient, secure, end-to-end solutions.
  • Apply security controls with ACLs, NAT and VPN, and lead troubleshooting of complex incidents to protect uptime and business continuity.
  • Produce clear solution documentation and collaborate across teams and vendors to deliver competitive, reliable outcomes.
2023 — 2024

Continuous Professional Development

Self-Directed Study
  • Earned CCNA and CCNA Cybersecurity certifications through the Cisco Networking Academy.
  • Reached TryHackMe rank 0x8 [Hacker], placing in the global top 10% across offensive and defensive challenges.
  • Completed Workearly's Full-Stack Python Developer Bootcamp: Python, Django, JavaScript and web fundamentals.
  • Built a virtualised lab for vulnerability assessment, exploitation and privilege-escalation practice across multiple operating systems.
2014 — 2023

Operational Specialist

Reign Lab — Thessaloniki
  • Engaged directly with clients to understand their needs and propose suitable options, building relationships and presenting recommendations.
  • Analysed performance metrics to identify process inefficiencies, driving a 30% increase in overall productivity.
  • Maintained hardware and authored configuration and troubleshooting documentation in a structured team environment.
capabilities

What I bring to the table.

solutioning & advisory

Solution DesignRequirements Discovery Pre-Sales SupportSolution Scoping Stakeholder EngagementBusiness Value Technical Presentation

network & security

Cisco IOSBGPOSPF VLANsVPNACLs NATTCP/IPDNS / DHCP Vulnerability MgmtRisk Assessment

tooling

Tenable NessusMetasploit Burp SuiteWireshark VMwareVirtualBox Packet Tracer

platforms & code

Linux (Kali / Ubuntu)Windows Server PythonDjango JavaScriptSQLHTML / CSS
credentials

Certifications & education.

  • CompTIA Security+ — in progress
  • Cisco Certified Network Professional (CCNP) — Enterprise
  • Cisco Certified Network Associate (CCNA) · 2023
  • CCNA Cybersecurity · 2023
  • Full-Stack Python Developer — Workearly · 2024
  • BSc Computer Science (Cybersecurity) — University of Derby, via Mediterranean College, Athens — expected 2027
contact

Let's talk solutions.

Looking for a Solutions Architect who can sit with your clients, design the right answer, and present it with conviction? I'd be glad to hear from you.

Email me LinkedIn ↗