Marcin Karpezo
From: Poland
Location: Piaseczno
On Useme since 19 August 2015
About me
Cloud, DevOps and full-stack engineer with 15+ years of hands-on experience. My focus since 2021: AWS, Azure and GCP — I design and run production systems. Since 2007 I have built websites, shops and software. Author of a book on WordPress.
I don't start with technology. First I learn the client's process and business goal, then I build a solution that speeds up work, cuts costs or grows the business faster.
What I do:
• Cloud, servers, DevOps — Linux, Docker, Kubernetes, Terraform, CI/CD, security, migrations.
• Custom software — web apps for firms and startups, admin panels, automation, API integrations.
• AI — LLM-based assistants and automation (ChatGPT, Claude, Gemini, Mistral), RAG, agents, document processing, human-in-the-loop.
• Websites and shops — WordPress and WooCommerce: physical and digital products, online ordering (restaurants), payments, plugins.
I work independently, from idea to deployment. I code in Python, Go, JS/TS and PHP. On-time delivery, clear communication.
Categories
CV / Résumé
Aug 2023 - Now
Cloud/DevOps Engineer, Delivery Lead
ClearScale (AWS Premier Partner)
I design and run AWS infrastructure (EKS, MSK, ElastiCache, OpenSearch) for enterprise clients. IaC (Terraform, Pulumi, CDK), CI/CD, cloud migrations, cost optimization. I roll out AI/LLM automation and automated code reviews.
Jan 2022 - Jun 2023
Senior Site Reliability Engineer (SRE)
Aetion (health-tech, USA)
Hands-on across the stack: JavaScript, Java, Go, Terraform, Pulumi. Early adopter of LLM-assisted code generation (GPT-3 era). CI/CD automation, IaC, AWS and Kubernetes. Also served as interim team lead (~3 months).
Jun 2019 - Jan 2021
Site Reliability Engineer (SRE)
PARP (Polska Agencja Rozwoju Przedsiębiorczości)
Linux server administration and production environments for a public institution. Docker, Ansible, Terraform, VMware. Deployment automation and containerization, support for the critical BUR service. Reference from the IT Director at PARP.
Jan 2017 - Dec 2024
Server administrator / cybersecurity
Freelance — serwery i bezpieczeństwo
Server and mail administration for media, investigative-journalism and NGO organizations. Secure local network, VPN, hardening, maintenance and support. Cybersecurity expert.
May 2007 - Dec 2022
WordPress / full-stack developer
Freelance (własna działalność)
WordPress/WooCommerce sites and shops for firms and startups — custom themes (Twig/Timber) and plugins, online ordering systems (incl. restaurants), physical and digital products, payments, multilingual sites.
Portfolio
Custom WordPress theme for the Warsaw Beer Festival, built on Twig/Timber. Extensive custom fields, complex template logic and multilingual support (PL/EN). Multiple event editions per year. The current site is now different — archival link.
I co-built Czynne24h.pl — Poland's first search engine for 24/7 local services (web + mobile app, 12k monthly users). Covered by INN Poland and MamStartup.
Online ordering system for the Negai sushi restaurant (Piaseczno) on WordPress and WooCommerce: set catalog, cart, online orders and payments. Built and deployed end-to-end, live in production.
My book on building websites with WordPress — from install to a full-featured site. ISBN 978-83-8091-152-9. Proof of deep, hands-on WordPress expertise and the ability to explain it.
STORE Projects (Londyn) — motyw Twig
Website for STORE Projects — a London arts/architecture CIC: workshops, events, online shop. Custom Twig theme (2019). The current site is now different.
Website for the Mikołajki Hydrobiological Station (Nencki Institute) — custom Twig theme, bilingual (PL/EN). Built during my work at the Nencki Institute.
Online ordering system for the Sushi Strefa restaurant (Piaseczno) on WordPress and WooCommerce: set catalog, cart, online orders and payments. Built and deployed end-to-end, live in production. Archival link.