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ULEHLA

Fullstack developer& AI engineer

I build and ship complete products – working directly with clients from analysis and architecture through robust backends and AI integrations to polished frontend design.

Selected projects

2026Author & Maintainer

agent-flight-recorder

A flight recorder for AI agents – run a task N times in isolated E2B sandboxes, record every trace, measure pass rate, flakiness and cost per success, and diff the trajectories of two runs.

PythonE2BClaude CodeCLIpytest
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2026Author & Maintainer

readme-ci

Run the code blocks in your README and fail CI when the quickstart breaks. Zero-dependency CLI + GitHub Action with Docker and E2B sandbox runners, published on npm.

TypeScriptNode.jsGitHub ActionsDockerE2B
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2026Author & Maintainer

mcp-sandbox

Run any MCP server inside an isolated cloud sandbox instead of on your machine – one command, no code changes. Removes the blast radius of untrusted agent tooling.

TypeScriptNode.jsE2BMCPVitest
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2026Author & Maintainer

agent-audit

An open-source security auditor for AI agent configurations – finds inline secrets, unpinned supply chains, blanket permissions and prompt-injection surfaces before they hurt you.

TypeScriptNode.jsVitestCLISecurity
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2026Author & Maintainer

agent-lens

Drop an AI agent session transcript into the browser and see what actually happened – tool-call timeline, where the time went, tokens, cost and failures. 100% client-side.

ReactTypeScriptViteVitestData Visualization
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2025Master’s Thesis · CTU FIT

Neural Networks in Virtual Reality

My master’s thesis: a web app that configures a neural network and a metaverse world that reads those parameters and builds a functional 3D model of the network – a “3D brain”.

TypeScriptReactThree.jsNeural NetworksResonite
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2025Architect & Fullstack Developer

AI Application Platform

A TypeScript monorepo platform for building AI-powered business applications – plugin architecture, typed APIs and a shared design system.

TypeScriptReactHonotRPCDrizzle
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2026Backend & Infrastructure

URL Shortener on Microservices

A production-style URL shortener built as a microservices system – cache-first redirects, stream-decoupled analytics and full observability, one command to run.

Node.jsExpressPostgreSQLRedis StreamsPrometheus
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2024Solo Developer

Trade-up Profit Calculator

A data pipeline and calculator that finds profitable CS2 trade-up contracts – market data ingestion, probability model and a tested TypeScript core.

TypeScriptNode.jsSQLiteVitestREST APIs
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Writing

Measuring agents like flightsA demo that works once tells you nothing. What pass rate, flakiness and cost per success taught me about building AI agents – and why none of it works without a clean room per run.

About

I'm a fullstack developer at NetGenium. I work across the whole lifecycle – sitting down with clients, analysing their needs, designing the solution, and then shipping it across frontend, backend and infrastructure. Over the past two years a growing part of that work has been bringing AI into our products and our own workflow.

Lately my focus is AI engineering: RAG pipelines over real client implementations, MCP servers, and automating processes that used to eat entire days – from customs clearance for the Czech Post to resolving client tickets, where the AI has the concrete codebase on hand and can find and fix the reported issue itself.

Location
Prague, CZ
Focus
Fullstack · AI
Experience
5+ years

Experience

  1. Fullstack Developer & AI Engineer

    Jan 2021 – Present

    NetGenium

    Enterprise applications on a low-code platform, client delivery, and integrating AI into the company’s products and internal workflow.

    • Integrated AI across the platform end to end – from data and retrieval to the tools and interfaces used by developers and clients.
    • Built RAG pipelines for the LLMs we use with clients, grounding answers in each client’s real implementation so the models reason over actual code and data.
    • Automated internal processes with AI: generating applications in our low-code framework, and near-automatic client-ticket resolution – the AI has the concrete implementation on hand, so it locates the reported problem and fixes it.
    • Automated the customs-clearance process for the Czech Post and built/customized their PostShop (postshop.cz) storefront.
    • Built internal MCP servers and database-backed MCP servers for clients; currently building the new Hello.cz website together with a partner studio.
    TypeScriptJavaScriptC#SQLReactClaude APIRAGMCP

  2. Research Internship (exchange)

    Feb 2023 – Jun 2023

    TU Wien

    Research internship in Vienna during an exchange stay at TU Wien.

    • International research experience alongside a demanding CS program.

  3. IT Administrator

    Jan 2018 – Dec 2020

    Health centre

    IT administration and support during university studies.

Education

Sep 2019 – Jan 2025

Czech Technical University – FIT

Ing. (Master’s), Software Engineering

Included a research internship / exchange semester at TU Wien, Vienna.

Skills

Languages

TypeScriptJavaScriptPythonC#C/C++JavaSQL

Frontend

ReactNext.jsVueAstroTailwind CSSHTML/CSS

AI Engineering

AI agents & tool useRAG pipelinesMCP serversClaude APIClaude Agent SDKOpenAI APISandboxed code executionPrompt engineering

Backend & Data

Node.jsFastAPI.NETPostgreSQLOracleRedis

Infrastructure

DockerKubernetesGoogle CloudGitCI/CD

Client work

Requirements analysisSolution designWorkshops & presentationsTechnical writing

Let's talk

Interested in working together, or just want to say hi?

[email protected]
GitHubLinkedInCV (PDF)