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iam.alan.abreu

Stack

Technologies in context.

Technologies I use regularly, with the context that explains why they are chosen and where they show up in my work.

Platform

Platform

Kubernetes

The common substrate for platform workloads. I use it as a reconciliation target, not as the product itself.

Why
It forces every deployment to be declarative and recoverable, which makes incident response and drift detection easier.
Where it shows up
Internal Developer Platform, homelab control plane, reliability baseline.
Platform

PostgreSQL

Default durable store for structured data and, with pgvector, a retrieval backend.

Why
Familiar operational profile, strong consistency guarantees, and pgvector keeps retrieval infrastructure simple.
Where it shows up
Grounded retrieval experiment, platform metadata stores.
Platform

TypeScript

Typed JavaScript for frontend, backend tooling and platform automation.

Why
Explicit types make contracts visible and refactors safe, which matters when platform code outlives the team that wrote it.
Where it shows up
This site, internal tooling, retrieval pipeline.

DevSecOps

DevSecOps

GitHub Actions

Delivery orchestration and the place where most security controls first touch the artifact.

Why
Workflows live next to code, are version-controlled, and are familiar to most product teams.
Where it shows up
Secure delivery pipeline, platform CI templates.
DevSecOps

Open Policy Agent

Policy-as-code for admission control, delivery gates and configuration validation.

Why
Policies written in Rego can be tested, versioned and reused across admission, CI and local development.
Where it shows up
Secure delivery pipeline, policy-as-code sandbox.

Cloud

Cloud

Terraform

Infrastructure as code for cloud resources and Kubernetes cluster lifecycle.

Why
State files make infrastructure changes auditable; modules make patterns reusable without hiding the underlying resources.
Where it shows up
Cloud provisioning, homelab virtualised nodes, platform environments.

Reliability

Reliability

OpenTelemetry

Instrumentation standard for metrics, traces and logs across services.

Why
A single instrumentation contract removes the need for service-specific dashboards during incident response.
Where it shows up
Reliability & Observability Baseline.