• Managing Multiple Systems with a Single Nix Flake

  A deep dive into a Nix Flake setup for managing both NixOS and macOS systems declaratively.
• Managing Secrets in a Public Nix Repository with Agenix

  A guide to using agenix for securely managing secrets in a public Nix configuration repository.
• Declaratively Managing Directories in NixOS

  A look at a custom Nix utility for creating directories with specific ownership and permissions.

• Nov2022 - Current
  KPN
  Data Plaform/ Software Engineer

  At KPN, I designed and implemented scalable, fault-tolerant event-driven services using Kafka, built to handle high-availability and high data loads. Developed microservices in Go and Rust, deploying them with Docker and Nix to support modern microservice architectures. In addition to backend engineering, I built robust data platform tooling and CLI utilities that streamlined department workflows, service deployment, and enhanced encryption and PKI management processes.

• Oct2021 - Nov2022
  DDi
  Machine Learning Engineer

  At DDI, I engineered AI-driven systems for smart document processing, integrating machine learning with reliable, scalable backend architectures. Implemented custom NLP models and OCR pipelines to extract structured data from complex insurance documents, including low-quality PDFs. Designed and deployed secure APIs and data workflows using CI/CD, automated testing, and containerized infrastructure. Contributed to ML research and enforced data privacy through automated depersonalization tooling.

• Cinescan

  Solving the 'What's Actually Worth Watching' Problem in Dutch Cinemas

Let's Connect

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• mail@arar.dev