Backend Engineer @ Albert Heijn

Backend &
Distributed Systems

I build the identity & access control plane for Albert Heijn's Transport Management System 2.0, and design the event-driven systems around it.

Moving a microservices ecosystem off a legacy monolith and a shared static-RBAC gateway onto Keycloak, Cedar policy-based authorization, and event-driven services, while growing toward solution architecture.

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tayam@core: ~

$ whoami

tayam-el-jebari

Backend & Distributed Systems Eng.

@ Albert Heijn · TMS 2.0

Location: Haarlem, NL

$ stack --info

- Kotlin / Spring - Kafka / Json - Keycloak / OIDC - Cedar (authz) - Azure APIM - Kubernetes

$ status

check_circle Building toward solution architecture.

Selected Work

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Case 01 Albert Heijn · current

Identity & access control plane for TMS 2.0

Moving a microservices ecosystem off a legacy monolith and a shared static-RBAC gateway onto a dedicated identity & access platform.

Keycloak (OIDC/SAML)CedarAzure APIMPulumi

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Case 02 Albert Heijn · Feb–Jul 2025

A reusable event-publishing framework

Abstracting Kafka + Debezium CDC into a framework so teams publish domain events reliably without re-inventing outbox plumbing.

KotlinSpring BootApache KafkaDebezium

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