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Jonas Vindahl Bang

Cyber & Computer Technology Student · IT Student Assistant · Security • Systems

Copenhagen, Denmark jonas@jonasvindahl.dk GitHub LinkedIn

Summary

I've been programming since I was 10. Now I'm studying Cyber & Computer Technology at AAU Copenhagen, working in IT at Eksponent, and running a 30+ service homelab on Proxmox, TrueNAS SCALE, and OPNsense. My focus is backend systems and security — most comfortable in Java and Spring Boot.

Experience

IT Student Assistant @ Eksponent

IT support and infrastructure work alongside studies. Managing client systems, day-to-day IT operations, and internal tooling at a digital agency.

Head Bartender @ Coctaiils

Bartending at private events — 18th birthdays, Friday bars, weddings. Catering setup, bar operations, and team coordination.

Backend Developer — EGALITARIAN DMS @ Erasmus+

Multi-university Erasmus+ project (AAU, University of Brasília, Saxion, University of Minho) building a digital management system for waste picker cooperatives in Brasília.

  • Multi-tenant architecture with full data separation per cooperative and role-based access (worker/manager) using CPF-based login
  • Collective selling logic — calculates each cooperative's contribution and splits revenue accordingly
  • Gamification: XP system based on collection volume, attendance, and manager-set material multipliers; cooperative leaderboard
  • Market prices feature giving workers access to recent material prices without exposing data across cooperatives
  • API coordinated with Brazilian team building the mobile frontend

Lead Developer — BLE Scale System @ Egalitarian

Built the hardware-to-app communication layer for a physical weighing scale used by waste pickers in the field.

  • ESP32 firmware: BLE GATT communication, stabilized-reading detection, confirmation flow
  • React Native BLE layer: real-time weight display, cross-platform support across Android and iOS

Gymnastics Coach @ Rødovre og Omegns Gymnastikforening

Coached youth gymnastics for six years. Training, social work with children and teenagers.

Education

BSc in Cyber & Computer Technology @ Aalborg University

Problem-based learning with semester-long team projects. Focus areas: networks, security, embedded systems, software architecture, cryptography.

Erasmus+ Exchange @ Universidad de Córdoba

Short exchange in Cyber & Computer Technology.

HTX — Higher Technical Examination @ NEXT Uddannelse København

Technical track with electives in programming and mathematics.

Technical Stack

Languages

JavaTypeScriptJavaScriptCPythonSQLBash

Frameworks

Spring BootSpring SecurityReact NativeAstro

Infrastructure

Proxmox VETrueNAS SCALEOPNsenseDockerCloudflareWireGuardGrafanaPrometheusLinux

Tools

GitMavenPostgreSQLNessusWiresharkIntelliJ IDEA

Labs & Activities

TryHackMe

Pre-security path, SOC Level 1, network fundamentals.

HackTheBox

Machines across web, forensics, and binary exploitation categories.

Haaukins / Hacker Nights @ AAU

Regular CTF participation on AAU's cyber range platform.

Homelab Security

Nessus vulnerability scanning, Suricata IDS/IPS, Cowrie SSH honeypot on Hetzner VPS.