---
title: "Experience"
url: "https://michalak.world/experience/"
description: "Services and areas of expertise: Drupal backend development, Drupal Commerce, fractional CTO leadership, AI agent development, hosting and DevOps."
lastmod: 2026-08-19
kind: "section"
count: 11
site: "https://michalak.world/"
---

# Experience

Services and areas of expertise: Drupal backend development, Drupal Commerce, fractional CTO leadership, AI agent development, hosting and DevOps.


Detailed breakdowns of where I do my best work, organized by platform and by
service. Each page covers the specific problems I solve, the technologies
involved, and the kinds of engagements that fit.

Broadly, engagements fall into three shapes:

- **Drupal backend and commerce work** — custom module development, entity and
  service architecture, Drupal Commerce implementations, version migrations,
  performance tuning, and security remediation across Drupal 7 through 10.
- **Fractional CTO leadership** — technology strategy, architecture planning,
  vendor evaluation, team mentorship, and roadmap work for startups and SMEs
  that need senior technical judgment without a full-time hire.
- **AI agent development** — designing and building production AI agents with
  LangChain, Langfuse, and CrewAI, or from scratch when off-the-shelf
  frameworks do not fit.

Work is remote and available worldwide, spanning e-commerce, higher education,
healthcare, nonprofits, and global organizations.


## Pages in this section

- [AI Agent Experience](https://michalak.world/experience/ai-agent-experience/) — 2025-04-12
  AI agent development and LLM consulting: autonomous agent orchestration with LangChain and CrewAI, Python LLM workflows, observability with Langfuse, and vector database integration.
- [Fractional CTO](https://michalak.world/experience/fractional-cto/) — 2024-10-29
  Fractional CTO services for startups and small to medium businesses. Senior technology leadership, architecture planning, and technical strategy on a part-time basis.
- [Drupal 10 Experience](https://michalak.world/experience/drupal-10-experience/) — 2024-10-29
  Drupal 10 development experience: Drupal 8 and 9 upgrades, custom REST APIs and modules, Drupal Commerce 2.x workflows, GDPR compliance, Apache Solr search, and Pantheon and Acquia hosting.
- [Shopify Experience](https://michalak.world/experience/shopify-experience/) — 2023-09-29
  Shopify development experience: building apps and app extensions in Node.js, working with the GraphQL, Admin REST, and Storefront APIs, and migrating Drupal Commerce stores to Shopify.
- [Drupal 9 Experience](https://michalak.world/experience/drupal-9-experience/) — 2019-10-29
  Drupal 9 development experience: Drupal 7 and 8 upgrades, custom module and REST API development, Drupal Commerce 2.x workflows, performance tuning, and hosting on Pantheon and Acquia.
- [Drupal: Higher Education - University Experience](https://michalak.world/experience/drupal-higher-education---university-experience/) — 2019-02-22
  Drupal higher education experience: university bookstore Commerce projects, news platforms, department multisites with custom Pantheon upstreams, Drupal 7 to 8 migrations, and custom learning platforms.
- [Drupal Healthcare Experience](https://michalak.world/experience/drupal-health-care-experience/) — 2019-02-22
  Drupal healthcare project experience: healthcare enrollment and application forms, city clinic information platforms with SMS reminders, and accreditation platforms with scoring and Commerce-based fees.
- [Drupal 8 Experience](https://michalak.world/experience/drupal-8-experience/) — 2019-02-22
  Drupal 8 development experience: Drupal 7 migrations, custom modules and REST APIs, Drupal Commerce 2.x carts and checkout, multi-currency and tax handling, and hosting on Pantheon and Acquia.
- [Drupal 7 Experience](https://michalak.world/experience/drupal-7-experience/) — 2019-02-22
  Drupal 7 development experience: custom modules and rules, multilingual builds with Transifex, Commerce 1.x and Ubercart, Avalara VAT and sales tax, security remediation, and server optimization.
- [Hosting Experience](https://michalak.world/experience/hosting-experience/) — 2019-02-02
  Hosting and DevOps experience across Pantheon, Acquia, AWS, Digital Ocean, Linode, Rackspace, and shared hosts, covering managed Drupal platforms and self-managed cloud infrastructure.
- [Drupal Commerce Experience](https://michalak.world/experience/drupal-commerce-experience/) — 2019-02-02
  Drupal Commerce experience across Commerce 1.x and 2.x: custom tax resolvers, promotions, multi-currency with GEOIP detection, EasyPost and FedEx shipping, Stripe and Braintree payment gateways, and PDF invoicing.