Backend Engineering
Backend systems in Ruby on Rails and Python/Django: REST APIs, microservices and background processing on SQL and NoSQL databases, built test‑first with RSpec and pytest.
In practiceFormaOperations platform
I build and scale transaction‑heavy platforms for e‑commerce and fintech: payments, data pipelines and AI automation.


01Own product

02Own product
03E‑commerce
04E‑commerce · Fintech
05Fintech
06Data
07E‑commerce
Backend systems in Ruby on Rails and Python/Django: REST APIs, microservices and background processing on SQL and NoSQL databases, built test‑first with RSpec and pytest.
In practiceFormaOperations platform
Component‑based single‑page applications in React and Vue, and real‑time, server‑rendered interfaces in Rails with Hotwire. Responsive on every screen and integrated with backend APIs.
In practiceForma
Distributed, event‑driven systems and the infrastructure behind them: containers, infrastructure as code, CI/CD pipelines, monitoring and cloud deployments.
In practiceOperations platformPayments automation
Data pipelines and ETL processes: large‑scale batch processing with Apache Spark on Databricks and integration jobs built in Talend Studio.
In practiceData sources
Agents, assistants and automation workflows built on commercial and open‑source LLMs. AI‑assisted development is part of my everyday engineering workflow.
In practiceSocraticAIForma
Smart contracts in Solidity and their integration into web applications and backend services through Web3 libraries.
In practiceContract payments
I’m Michał Andros, a senior full‑stack engineer with more than 10 years of commercial experience building and scaling high‑traffic web platforms. My core stack is Ruby on Rails and Python/Django. Alongside it, I build LLM‑powered agents and automation workflows, and deliver smart contract and Web3 API integrations.
I currently work on one of Europe’s largest sports e‑commerce platforms, serving millions of customers across international markets. I design and develop distributed systems, high‑volume APIs and backend architecture, combining hands‑on full‑stack work with DevOps and technical leadership.
I care about systems that stay easy to change: clean architecture, readable code and long‑term maintainability. In practice that means TDD, CI/CD automation, infrastructure as code and event‑driven design, backed by production observability (OpenTelemetry, Sentry) and cloud infrastructure on AWS and GCP.
Global sports e‑commerce platform
I have built a wide range of support applications for the sales platforms around the company’s main e‑commerce storefront. I lead the transaction‑processing automation tool, now in its nth iteration, with each version re‑engineered for a new generation of the platform’s backend commerce engines.
AM CODE
My own software company, through which I work with clients on a B2B basis, from technical consulting to end‑to‑end delivery of web applications, AI automation and blockchain integrations. This includes collaborations with partner companies of the e‑commerce platform, who came through the business itself or directly through my role there.
“I have an idea for a product.”
Building a new web application or platform from idea to production, end to end.
“My system is starting to hold the business back.”
Senior support for a team whose platform has outgrown its architecture, performance or deployment process.
“I need an honest assessment and a concrete plan.”
Review of architecture, code and infrastructure, with a concrete plan of what to fix first.
“I want my team’s time back.”
LLM agents and workflows that take repetitive work off your team, integrated with the systems you already use.
“I need smart contracts in my product.”
Smart contracts in Solidity and their integration with your web application or backend, from contract to working product.
Available for B2B projects
Alongside my full‑time role, I take on selected projects as a B2B freelancer. I work with companies on web platforms, AI automation and blockchain integrations, as a technical partner for a new product or as senior support in scaling an existing system. Send a short description of what you’re building and I’ll reply with how I can help.