I’m a backend engineer focused on building reliable, scalable systems with a strong foundation in distributed architecture, identity management, and data-intensive workflows. I enjoy turning complex problems into practical, maintainable solutions — whether that’s designing event-driven pipelines, extending IAM platforms like Keycloak, or building modular services in Go.

Most of my work revolves around real-world system challenges: concurrency, data consistency, integration reliability, custom authentication flows, and performance-sensitive backend logic. I value clear design, strong engineering fundamentals, and code that is easy to reason about.

I'm active in open-source tooling, enjoy discussing architecture, and I’m always open to collaborating on interesting projects or helping others with backend, IAM, or system design questions.

Outside of engineering, I enjoy reading novels, playing RPGs, and travelling.

---

What I Work With

Core Areas

• Distributed systems & event-driven architecture

• Backend engineering in Go and Python

• Identity & access management (Keycloak customization, authentication flows, Action Tokens)

• Database schema design, relational modeling, and async persistence

• Reliable integrations, async processing, and system resiliency

• Backend Engineering

  • Go (concurrency, modular services, reliable backend development)
  • Python for backend systems and async processing
  • Architectural patterns such as CQRS and clean modular design

• Identity & Access Management

  • IAM fundamentals: authentication flows, authorization models, invitation systems, identity lifecycle
  • Keycloak customization: custom providers, Action Tokens, authenticators, extended registration/login flows

• Data & Storage

  • PostgreSQL: schema design, migrations, relational modeling
  • Redis: caching, distributed locks, lightweight state management

• Messaging & Integration

  • NATS and event-driven processing
  • Patterns for reliable, idempotent asynchronous workflows

Others

• Observability fundamentals (logging, metrics, traceability)
• Designing for system correctness and debuggability
• Background workers, job orchestration, retry logic
• Security-aware design and access control principles

I enjoy contributing to open-source projects and discussing system design, backend architecture, and IAM. If you’re working on something interesting — or just want to exchange ideas — feel free to reach out.

---

• LinkedIn: in/viniciusith
• Bluesky: viniciusith.bsky.social
• Modrinth: modrinth.com/ViniciusIth
• Email: viniciusith@yahoo.com