Houssem Zerrad

Senior Backend & Platform Engineer

I join engineering teams on long-term contracts to build fast, reliable backend and data platforms, and to fix the ones that have become slow or fragile.

Book a 30-min intro call Deel or direct B2B · CET (UTC+1), 4 hours' overlap with US Eastern

What I help with

  • Make slow paths fast

    Endpoints and queries that crept up over months.

  • Untangle fragile data flows

    Pipelines no one can trace or replay.

  • Make changes safe to ship

    Blurred ownership that makes small changes risky.

  • Cut platform drag

    Slow deploys, drifting environments, a growing bill.

Selected results

Building in open source

Themis: governing proposed Kubernetes fixes

I built Themis to separate AI incident investigation from permission to change a workload. Its Go core checks the evidence and policy, asks a person to approve the exact change, then hands it to a separate executor and verifies the result.

Open-source alpha · Go, Python, PostgreSQL and Kubernetes

Read the engineering case study →

Stack & domains

Languages
Go · Python · TypeScript/Node.js
Data
PostgreSQL · Redis · Kafka · BigQuery
Platform
Kubernetes · AWS · GCP · Azure · Terraform · Pulumi
Domains
Biotech · Healthcare · SaaS integrations · Marketplaces

Where to go next

Need a senior engineer on your backend or platform?

Houssem Zerrad

Senior Backend & Platform Engineer · © 2026 · Insights