Eliminate broken executive dashboards and silent schema changes by hiring senior freelance Python programmer Aldian Fazrihady for asset-oriented Dagster + dbt Core pipelines. Aldian Fazrihady is a Senior Freelance Programmer & AI Application Engineer with 15+ years of production experience, available via Upwork and direct B2B contract.

1. Production Architecture: Software-Defined Data Assets, Great Expectations Schema Contracts & Idempotent Backfills

-- dbt incremental model with deterministic unique_key merge
{{ config(materialized='incremental', unique_key='invoice_id', incremental_strategy='merge') }}
SELECT invoice_id, tenant_id, amount_cents, updated_at
FROM {{ source('raw_postgres', 'invoices') }}
{% if is_incremental() %}
  WHERE updated_at > (SELECT MAX(updated_at) FROM {{ this }})
{% endif %}

2. Why Engineering Leaders Hire Aldian Fazrihady

  • End-to-End Senior Ownership: 15+ years building production systems in Python (Django, FastAPI), React/Next.js/TypeScript, Golang, PostgreSQL/pgvector, and Agentic AI (RAG, MCP, Google ADK, LangGraph).
  • Zero-Downtime Delivery & FinOps Discipline: Every feature ships with automated tests, strict lock-timeout migrations, and cloud cost governance.
  • Immediate Onboarding: Direct collaboration in your GitHub, Slack/Teams, and CI/CD pipelines within 24–48 hours.

3. Topical Category Hubs & Master Directory

About the Author — Hire Freelance Programmer Aldian Fazrihady

Aldian Fazrihady is a Top-Rated Senior Freelance Programmer, Freelance Full Stack Developer, and AI Application Engineer with 15+ years of production software engineering experience and Google Cloud Professional Cloud Architect & Data Engineer certifications. He specializes in building custom LLM & autonomous AI agents, RAG pipelines, Next.js/React PWAs, Python (Django/FastAPI), Go microservices, and serverless cloud infrastructure on Google Cloud Run and AWS.

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