HLHarley LafeberSOFTWARE ENGINEER · LVL 12+SOFTWARE ENGINEER
Language
INVENTORY · 17 DISCOVERED ITEMSTECHNICAL SKILLS · 17 AREAS

Skill inventoryTechnical skills

Rarity reflects practical proficiency: signature strengths use the highest tiers.Technologies used across production systems, integrations, mobile applications, infrastructure, and interactive software.

Rarity key: Legendary = signature expertise · Epic = deep production experience · Rare = strong working experience · Uncommon = practical use · Common = familiarity

C#

legendary

Language · Signature expertise

  • backend
  • APIs
  • desktop
  • integrations
  • games
  • bots
  • tooling
+20 debugging · +2 Jira tickets · +120% meaningless metrics

.NET / ASP.NET

legendary

Framework · Primary framework

  • Web API
  • MVC
  • services
  • WPF
  • Blazor
  • .NET Framework
Reliable main-hand weapon

C++

rare

Language · Production experience

  • hardware layers
  • smart cards
  • OpenSC
  • memory management
Manual memory; manual emotional regulation

TypeScript / JavaScript

rare

Language · Production experience

  • browser libraries
  • Angular
  • Cloudflare Workers
  • Node tooling
Works perfectly after deleting node_modules

Flutter / Dart

epic

Mobile · Production experience

  • Android
  • iOS
  • banking
  • NFC
  • platform APIs
Acquired mid-production incident

Azure

epic

Cloud · Professional experience

  • Service Bus
  • Functions
  • DevOps
  • AI / Foundry
  • CI/CD
+5 regions · -1 predictable invoice

SQL Server / MSSQL

epic

Data · Regular production use

  • transactional systems
  • reporting
  • game backends
  • performance
Knows where the locks are buried

Redis / MongoDB

rare

Data · Supporting data stack

  • token revocation
  • event storage
  • audit retention
  • caching
Fast now, durable later

APDU / Smart Cards

epic

Hardware & protocol · Specialized domain expertise

  • Belgian eID
  • Belpic
  • EMV
  • PPSE / 2PAY
  • 1PAY
Acquired after encountering unusually hostile rectangles

NFC / EMV

epic

Hardware & protocol · Production experience

  • mobile registration
  • payment cards
  • Android
  • Flutter
Tap to debug

BLE positioning

rare

Hardware & protocol · Delivered solution

  • Android PDAs
  • beacons
  • distance estimation
  • triangulation
GPS entered the metal warehouse and immediately resigned

SignalR

rare

Distributed systems · Production integration

  • real-time state
  • hardware integration
  • reconnect behavior
Polling defeated

Docker / CI/CD

uncommon

Infrastructure · Delivery tooling

  • Azure DevOps
  • signed releases
  • artifact publishing
  • deployment automation
Build once, investigate everywhere

Linux / nginx

rare

Infrastructure · Live operations

  • reverse proxies
  • load balancing
  • mail
  • game services
The server is fine; check DNS

Unity / Unreal Engine

rare

Games · Project experience

  • 2D mobile
  • Unreal prototypes
  • VRChat worlds
  • game systems
Playable build acquired

Kubernetes

common

Familiar · Working familiarity

  • container orchestration concepts
  • read and reason
Unidentified artifact - do not equip for senior platform roles

Python / Rust / Ruby / COBOL

common

Familiar · Reading familiarity

  • reasoning about unfamiliar code
  • conceptual familiarity
Map uncovered; fast travel unavailable