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2 followers · 6 following
  • Germany
  • 08:20 (UTC +02:00)

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Achievement: Pull Sharkx3Achievement: YOLOAchievement: QuickdrawAchievement: Pair Extraordinaire

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Keksclan/README.md

Hi, I'm Til

I build authentication infrastructure for microservice systems.

My main focus is designing and implementing OAuth2-based architectures that scale, stay secure under load, and don't turn into bottlenecks.

What I work on

  • OAuth2 / OpenID Connect Authorization Servers
  • JWT & Opaque Token validation
  • Permission systems (gRPC-based)
  • Service-to-service authentication
  • Multi-tenant IAM models
  • Token lifecycle, key rotation & introspection
  • Performance-oriented auth validation (L1/L2 caching)

Most of my work is backend-heavy and infrastructure-driven.

Core Technologies

Backend

  • Go (Fiber, gRPC, pgx)
  • Spring Boot (Spring Authorization Server)
  • PostgreSQL (normalized schema design)
  • MongoDB
  • Redis

Security

  • OAuth2 (Authorization Code + PKCE, Client Credentials)
  • OIDC
  • JWT (JWK rotation)
  • Opaque tokens + Introspection
  • mTLS (service authentication)

Infrastructure

  • Docker / Docker Compose
  • Kubernetes
  • Prometheus
  • Cloudflare

Current Direction

Designing modular auth systems for distributed environments:

Authorization Server
→ Permission Service
→ Resource Services

The goal is simple: auth that is correct, fast, and maintainable.

Outside of coding: kickboxing. Same mindset — structure, discipline, precision.

💻 Tech Stack

Go Go Fiber gRPC

Postgres MongoDB Redis

OAuth2 OpenID Connect JWT

Charm

Docker Kubernetes Prometheus

Vue.js Python Java

📊 GitHub Stats



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