About

About PaxCode

PaxCode is the software practice of Wojciech Król, a senior engineer and architect based in Poland, building backend, data and AI systems since 2018.

[Photo: Wojciech Król] 3 : 4 · black and white or muted

The name

The name comes from pax, Latin for peace, as in Pax Romana, two centuries of order. That is the job: bringing order to systems where code, data and AI have started to sprawl.

PaxCode works B2B with product teams in the UK and EU, as an embedded engineer or on a defined scope.

How the work is done

Each one links to where it shows.

  1. 01 Decisions written down, trade-offs stated. Case study AI pipelines for financial advice
  2. 02 Numbers over adjectives. Post Athena: from 240 to ~30 minutes
  3. 03 The simplest design that survives the next order of magnitude. Case study Data leak scanner
  4. 04 Least privilege by default: every service, role and key gets only what it needs.
  5. 05 AI output is checked by a person before it becomes a decision. Pipeline step 18 Human review

Timeline

  1. 2024 – now UK AI fintech in financial advice: AI pipelines and the no-code template editor
  2. 2023 – 2026 Italian fintech in cybersecurity: a data leak scanner built and run solo, and alerting jobs over hundreds of terabytes in Athena, S3 and Parquet
  3. Apr 2023 PaxCode founded: long-term B2B contracts, up to two clients in parallel
  4. 2018 First freelance projects

Credentials

BEng, Systems Engineering
Wrocław University of Science and Technology · 2017–2022
ITIL® Foundation Certificate in IT Service Management
PeopleCert · 2019
AI_devs 3: Agents
2025
Languages
Polish (native), English (C1)

Contact

Work with PaxCode.

Book a call Write to hello@paxcode.it