Dawid Kowalczyk

User experience designer, working at the edge of engineering

Four years designing for developers taught me one thing: if you want to build a good tool, you have to stand in the developer's shoes. That means reading code, writing specs, and using the same tools they use.

Dawid Kowalczyk

End-to-End

UX Designer

I own the full design lifecycle, from discovering the right problem to designing the solution and supporting development. Helping teams answer three essential questions.
Developer Tools
Medical Instrument
HR B2B  System
Banking System

10+

Years of

experience

driving design processes from research to handoff in complex domains engaging domain experts, collaborating with stakeholders, partnering closely with engineers, and facilitating design thinking.

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Developer Tools

OCADO Technology
UX Designer

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Improved the developer experience (DX) for engineering teams using Ocado’s internal developer platform, which supports the delivery of solutions for Ocado’s partner. Key projects:

PROJECTS
Platform Documentation:
Removed friction and improved workflow for engineers.
API Lifecycle Management:
Improved documentation quality and discoverability.
Platform Change Tracker (AI):
Designed AI-assisted incident change tracking interface.
RESPONSIBILITIES
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Conduct user interviews
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Map domain knowledge
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Map customer journey
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Analyse external tools
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Analyse data (FullStory)
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Design information architecture
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Design UI and prototyping
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Conduct user tests
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Conduct workshops
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Support frontend dev. (REACT)
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Write documentation
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Medical Instrument UI

QIAGEN
Product Designer

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Design touchscreen interface for QIAstat-DX Rise, a high-throughput diagnostic instrument used by laboratory technicians in clinical environments.

RESPONSIBILITIES
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Conduct user interviews
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Map domain knowledge
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Map customer journey
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Design information architecture
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Design UI and prototyping
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Conduct user tests
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Co-created design system
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B2B HR Management Platform

eWork Group
UX Designer

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Designed a back-office web application that supports the full hiring and job offer lifecycle, from offer creation through candidate tracking and application management.

RESPONSIBILITIES
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Conduct user interviews
flowsheet
Map domain workflows
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Map customer journey
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Design information architecture
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Prototype workflows
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Conduct user tests
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B2B Loan System

Santander Bank
UX/UI Designer

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Back-office document management system designed to reduce friction and standardize the loan approval process across business units.

RESPONSIBILITIES
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Conduct user interviews
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Design information architecture
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Design UI and protyping
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Conduct user tests
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Co-own Design system
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Career Development Platform

DOOK
UX Designer

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Back-office application for e-learning and career development management, serving learners and managers with distinct but complementary workflows.

RESPONSIBILITIES
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Conduct user interview
flowsheet
Map domain knowledge
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Design information architecture
dashboard_2
Prototype
fact_check
Conduct user tests

Developer Tools

OCADO Technology
UX Designer

An internal developer platform used by engineers to build software solutions across the full software development lifecycle (SDLC). Working at project:

API Lifecylce Management
AWS API Wrapper
Platform Change Tracker
Platform Documentation
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Medical Instrument UI

QIAGEN
Product Designer

A touchscreen interface for high-throughput medical diagnostic instruments used by lab technicians in regulated clinical settings.

B2B HR Management Platform

eWork Group
UX Designer

A back-office web application designed to streamline multi-role recruitment workflows and job offer management.

B2B Loan System

Santander Bank
UX/UI Designer

A back-office document management system engineered to standardize loan approval workflows across business units.

Career Development Platform

DOOK
UX Designer

An enterprise career management system designed to coordinate learning, skill mapping, and professional growth across organizations.

Skills

I apply proven frameworks like Jobs-to-be-Done (JTBD) for user research, the Double Diamond for structured problem solving, and Agile for continuous delivery with engineering teams. In my workflow, I operate across three distinct spaces:

Problem definition
User Reserach
Research
User Reserach
Workshop & Facilitation
Data analysis and synthesis
User Reserach
Solution Design
Information Architecture
User Reserach
Interface Design
User Reserach
Design System
User Reserach
Usability Test
User Reserach
Development Support
HTML / CSS / JS
User Reserach
React / Tailwind CSS
User Reserach
Documentation (Diataxis)
User Reserach

Tools

.

10+ YEARS EXPERIENCE

designing complex systems for expert users

Each domain taught me the same thing: complex systems punish shallow understanding. Engage experts, learn their language, understand their world, then design.

Dev Tools
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Engineers
Medical Instruments
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Lab technicians
B2B HR Platform
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Recruiters & hiring managers
Banking System
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Business loan advisors
e-learning Platform
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Managers & employees
SELECTED WORKS ↓
Tools for developers
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OCADO Engineers.
AWS API Gateway
Wrapper
API Externalisation
& Review
OCADO Tech. Platform documentation
Platform change trace - powered by AI
OCADO | ENG-PROD

OCADO Technology internal platform documentation

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FOR OCADO ENGINEERS

Optimized the developer experience across two layers: systemic findability and content depth. I designed a unified UI to streamline multi-tool search, while leveraging the Diataxis framework to make complex documentation highly comprehensive and structured

1
CENTRAL HUB
50+
TOOLS
100+
ENG TEAMS
1K+
USERS
QIAGEN | QIASTAT-DX RISE

Medical instrument touch screen UI redesign and adaptation

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FOR  LABORATORY TECHNICIAN

Scaled a legacy instrument interface onto a larger, fully automated display framework to optimize core laboratory throughput. Powered by a unified design system built for all devices, the new high-density UI was designed with the goal of speeding up sample loading and reducing the physical time operators spend at the machine.

160
DAILY TESTS
< 1 min
HANDS-ON TIME

CURRENTLY LEARNING

front-end fluency and AI fundamentals

Three reasons:

01. Speak my users' language, not translate it secondhand.

02. Feel the constraints myself.

03. Catch what gets lost in handoff, before it gets lost.

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REACT
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TAILWIND CSS
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GIT
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Claude Code
SIDE PROJECT

Bridging design and engineering

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FOR DESIGNERS WANT TO UNDERSTAND CODE

UXE Education is where I explore the space between design and engineering. I write code, break things, and figure out what each side actually needs from the other — not to become an engineer, but to design like someone who understands what someone is asking for.

Get in touch

mail
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User
research
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Workshops
& Facilitation
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Data
Analysis
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Information
Architecture
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Interface
Design
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Design
System
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Usability
Tests
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Frontend
Development