PORTFOLIO SYSTEM v1.0 SYS ONLINE
PROFILE.TXT ● STATUS: ACTIVE
DEXTER DAVID
CYBERSECURITY STUDENT — FINLAND
BIT Cybersecurity student at Laurea UAS, building toward offensive security. Currently studying CompTIA Sec+, running CTF challenges on TryHackMe and PicoCTF, and planning a VLAN-segmented home lab with Wazuh SIEM.

Thesis direction: AI-assisted penetration testing — evaluating LLM-guided attack workflows in a controlled lab environment. Four years of operations and process automation experience at Wolt.
DOWNLOAD CV VIEW PROJECTS
CURRENT FOCUS COMPTIA SEC+
CERT ROADMAP SEC+ → CCNA → PNPT
PLATFORM TRYHACKME / PICOCTF
HOME LAB PLANNING PHASE
THESIS PREREQ PHASE
LOCATION FINLAND / EET
EXPERIENCE.LOG 4 RECORDS
RECORD_001
JAN 2022 – PRESENT
WOLT ENTERPRISES OY
HELSINKI, FINLAND
REGIONAL PAYOUTS ASSOCIATE / OPERATIONS SUPPORT SPECIALIST
  • Reduced support ticket volume by over 80% through pattern analysis and Monday.com automation
  • Managed 2nd- to 3rd-line support across payouts, compliance, and platform issues across 9 markets
  • Validated and reconciled transaction data, maintaining SOPs aligned with GDPR and internal controls
  • Trained new team members. Contributed to platform re-verification initiatives to reduce operational risk
  • Executed daily payout operations and monitored workflows across assigned markets
RECORD_002
SEP 2021 – JAN 2022
SWAPPIE OY
HELSINKI, FINLAND
PRODUCTION SPECIALIST — IPHONE REPAIR
  • Diagnosed and resolved hardware and software faults on mobile devices under structured troubleshooting procedures
RECORD_003
OCT 2020 – JUN 2021
SCORE CONSULTING OY
UUSIMAA, FINLAND
JUNIOR CONSULTANT (INTERNSHIP)
  • Produced process documentation and project plans, translating business requirements into actionable steps
  • Supported client-facing activities and coordinated content across teams
RECORD_004
JUN 2019 – NOV 2020
PRECISE N SYSTEMATIC
VANTAA, FINLAND
PROJECT COORDINATOR / BUSINESS DEVELOPMENT
  • Conducted B2C and B2B sales and presented in business proposal meetings
  • Acted as on-site coordinator and shift manager
PROJECTS.DIR 2 ENTRIES
FILE_001
HOME LAB INFRASTRUCTURE
Designing a VLAN-segmented home lab for security research. Covers network topology, OPNsense firewall config, Proxmox virtualisation, and Wazuh SIEM deployment. Will serve as the controlled environment for thesis research.
PROXMOX OPNSENSE WAZUH VLAN
● PLANNING PHASE
VIEW TOPOLOGY →
FILE_002
AI WORKFLOW OS
Designed and built a personal AI workspace that holds context across sessions, adapts its behaviour to each area of work, and picks up exactly where you left off. Covers cybersecurity studies, job hunting, and thesis research.
AI / CLAUDE SYSTEMS DESIGN KNOWLEDGE MGMT
● ACTIVE
VIEW SHOWCASE →
WRITE-UPS.LOG FEED INITIALIZING
[ DATASTREAM PENDING ] — FIRST ENTRY INCOMING
CONTACT.SYS ● CHANNEL OPEN