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Michał Pasierbski

Michał Pasierbski

Staff Software Engineer | Applied AI

Zurich Area, Switzerland
[email protected]pasmichal.compracticallyagents.comlinkedin.com/in/mpasierbskigithub.com/pasierb(+41) 76 295 38 84

Professional Summary

Staff Software Engineer and Engineering Lead with 15+ years building software, including at Google and AWS. I now lead engineering for Elaiia, a customer-facing Gen AI simulation platform, where I've shipped multi-agent workflows and the validation, tracing, evals, and cost controls they need in production. I also co-founded and shipped Notamify, an AI pre-flight briefing product.

Professional Experience

Delta Labs AG

Staff Software Engineer, Engineering Lead

06.2026 – Present · Zurich, Switzerland
  • Digital twin studies: Lead engineering for Elaiia, where customers run studies with digital AI twins as respondents, ask follow-up questions, and use the resulting reports to guide business decisions. Built its multi-agent simulation pipelines with LangGraph, FastAPI, and Next.js.
  • AI quality: Set production inference testing standards and built a multi-stage validation layer with deterministic schema and semantic checks plus an LLM-as-a-judge review for generated reports.
  • Observability & evals: Added end-to-end Langfuse tracing for output quality, latency, and cost. Built a framework for research teams to compare models and prompts.
  • Production performance: Improved orchestration and caching to manage latency and LLM inference costs.
  • Product telemetry: Built Grafana dashboards from production data for CEO/CPO roadmap decisions and automated alerts for inactive clients to support retention work.
Tech:LangGraph, LangChain, Langfuse, Grafana, FastAPI, Python, TypeScript, Next.js, PostgreSQL

Google

Software Engineer

11.2021 – 05.2026 · Zurich, Switzerland
  • Built Product Diagnostics for Merchant Center Next so merchants could monitor problems with their product catalogs.
  • Product launch: Led the design and implementation of authentication and access management for Business Manager, a hub for first- and third-party merchant apps that launched to more than 300,000 monthly active users.
  • Worked on UI integrations connecting Merchant Identity with Shopify, YouTube Shopping, Google Ads, and Google Business Profile.
  • AI Support Agent (20% project): Built an internal prototype for G-Tech support teams that automated about 70% of responses to technical customer inquiries. It gained traction and visibility and was prioritized to become a core part of a user-facing AI support agent.
Tech:Java, Dart, Angular, Kotlin, SASS, ADK, Bazel

Amazon Web Services (AWS)

Software Development Engineer II

08.2020 – 10.2021 · Berlin, Germany
  • Led work in the AWS Customer Experience team to simplify end-to-end, canary, and integration testing for AWS Console pages.
  • Built a WebDriver testing framework that partner teams could use with their own console apps.
  • Helped build a shared feature flagging tool for internal rollouts and experiments.
Tech:JavaScript, TypeScript, React, WebdriverIO, AWS Services

EF Education First

Lead Software Engineer & Platform Team Lead

07.2019 – 07.2020 · Zurich, Switzerland
  • Production scale: Designed the move to Cloudflare Workers for all EF product page traffic, about 13 million requests a day, and worked directly with Cloudflare on the migration.
  • Led a four-person platform team supporting internal teams through CI/CD and deployment automation, plus cross-team projects including an internal link shortener and global proxy configuration on Cloudflare Workers.
  • Helped build a shared React component library with EF Global Creative Studio that was adopted companywide.
Tech:TypeScript, Go, AWS, Terraform, Cloudflare Workers, React, GraphQL

R3PI

Software Development Engineer / Front-end Lead

09.2018 – 04.2019 · Zurich, Switzerland
  • Led a three-person frontend team delivering an automotive insurance claims platform for Solera.
  • Production optimization: Cut bundle size by 25% and used DataLoader caching to avoid redundant GraphQL data fetches.
  • Built AR navigation prototypes.
Tech:TypeScript, JavaScript, Node.js, React, GraphQL, SASS

EF Education First

Senior Front-end Engineer

12.2017 – 08.2018 · Lucerne, Switzerland
  • Led frontend work on an e-commerce JAMstack migration. Standardized Docker development environments and Jest/Puppeteer test suites.
Tech:JavaScript, Vue.js, Node.js, Docker, SASS, PostgreSQL

IS Engineering

Chief Software Architect

01.2014 – 12.2017 · Zug, Switzerland
  • First engineer: Built a distributed factory tracking and analytics system from scratch and deployed it to production at more than 10 glass plants worldwide.
  • Defined requirements with customers, oversaw handover, and integrated external systems with partners.
Tech:Ruby on Rails, PostgreSQL, MongoDB, Docker, Vue.js, Node.js

Early Career Roles (PGS Software · sharewise · CMS Mirage)

Software Developer (Full-Stack / Frontend / Backend)

05.2009 – 12.2013 · Wrocław, Poland
  • Built web apps and services, including real-time WebSocket updates, fleet reports, and user interfaces.
Tech:Ruby on Rails, Java, JavaScript, Node.js, PostgreSQL, Git

Selected Projects & Independent Engineering

Notamify

2023 – 2024 (Stepped down)

Co-Founder & CTO

notamify.com ↗
  • Shipped AI product: Co-founded Notamify, which turns raw NOTAM notices into structured, readable pre-flight briefings for pilots and aviation professionals.
  • LLM pipeline: Built data ingestion, semantic LLM parsing, and backend services on GCP with PostgreSQL. Stepped down in 2024.
Tech:Python, FastAPI, PostgreSQL, GCP, Docker, OpenAI

Practically Agents

2025 – Present

Founder & Technical Author

practicallyagents.com ↗
  • Write about multi-agent orchestration, validation, evals, and agent interfaces based on production AI engineering work.
  • Build and open-source agent workflow prototypes to test the patterns I write about.
Tech:LangChain, LangGraph, Google ADK, Astro, TypeScript, Python

Technical Skills & Competencies

Production Gen AI

LLM orchestration · Multi-agent workflows · Output validation · Evals & benchmarking · Tracing & observability · LangGraph · LangChain · Google ADK

Architecture & Cloud

AWS (Lambda, DynamoDB, CDK, S3) · GCP · Cloudflare Workers · Terraform · Docker · CI/CD Pipelines

Languages

TypeScript · JavaScript · Python · Go · Java · Dart · Kotlin · Ruby

Web & Full-Stack

Next.js · React · Angular · FastAPI · Node.js · Vue.js · Tailwind CSS · REST & GraphQL

Databases & Storage

PostgreSQL · Redis · MongoDB · Vector Databases

Education

Higher School of Information Technology and Management "COPERNICUS"

Studied Computer Science (no degree)

2007 – 2009 · Wrocław, Poland

University of Wroclaw

Studied Archeology (no degree)

2001 – 2003 · Wrocław, Poland

Certifications

Agentic System Design

Educative

Issued 02.2026

AWS Certified Solutions Architect – Associate

Amazon Web Services (AWS)

Issued 12.2019

Mobile Web Specialist

Google Developers

Issued 01.2019