Testing and quality
Manual, automated and API tests, with performance verification before release.
TESTING, DIAGNOSTICS AND APPLICATION DEVELOPMENT
I help test, improveand develop applications.
I combine testing and diagnostics with focused code improvements and automation. I use AI and verify the results in practice.
How I can help
Diagnostics and improvements
Investigating errors, logs and data, making focused code fixes and checking the results.
Tools and automation
Scripts, workflows and application tools that reduce repetitive work.
SELECTED WORK
A product you can inspect, not just a claim.
MyAnalyze is the clearest example of how I turn an idea into a working product and keep improving it across real releases.
Release history
Swipe to explore earlier releasesPERSONAL PRODUCT · WINDOWS + MOBILE
MyAnalyze 4.2 · Finance, planning and analysis in one place
Accounts, transactions, goals, statement imports and forecasts in one personal finance app. MyAnalyze helps you organize everyday finances, understand your spending and plan ahead. Data is stored locally, with an interface for desktop and mobile.
- From screen design to calculation rules, I work to make the result understandable to the person using the app.
4.2 demo · Statement import and analysis
Mobile financial summary and forecast
Mobile trends and financial indicatorsPERSONAL PRODUCT · WINDOWS + MOBILE
MyAnalyze 4.1 · Deposits, investments and IKE/IKZE
Version 4.1 added deposit tracking (principal, interest, maturity and valuation history), investments (acquisition cost and current value), and Polish IKE/IKZE retirement accounts. It also clarified spendable funds versus long-term savings and refined the desktop and mobile interface.
PERSONAL PRODUCT · WINDOWS + MOBILE
MyAnalyze 4.0 · Finance on desktop and mobile
Mobile transaction history with statuses and month filters. Swipeable KPIs, individually selected signals and shortcuts with saved ordering. Accounts, goals, imports and forecasts remain part of the same product.
Version 4.2.0
See MyAnalyze quality evidence
WHAT TO LOOK AT
- Attention to detail and consistency across a growing interface
- Product ideas turned into practical user flows
- Complex data and import workflows handled as one coherent product
- Versioned releases, regression thinking and documented changes
- Design decisions balanced with usability and business rules
Dashboard · dark mode, amounts hidden
Trends and alerts · month comparisons
KPIs · custom financial indicatorsHOW I CHECK QUALITY
From a risk to a specific check.
Examples based on MyAnalyze project tests. They describe checks, not a client audit or a guarantee of application-wide quality.
An import must not change amounts
- Risk
- A malformed amount can be misread as a valid number.
- Check
- Import tests cover corrupted values, different separators and signed amounts. Expected behaviour: reject the invalid row and preserve valid data.
- Why it matters to your business
- The same approach helps check data quality in order imports, reports and integrations.
Similar records are not always duplicates
- Risk
- Two legitimate transactions can share a date, description and amount.
- Check
- Separate tests cover similar transactions without identifiers and a repeated unique identifier. The rule should preserve the former and exclude an actual duplicate.
- Why it matters to your business
- This helps check whether a system drops valid records or saves the same data twice.
One change should preserve other data
- Risk
- Changing a card's available credit must not overwrite its debt.
- Check
- An account-model test checks that changing one value preserves the other. These checks can flag broken rules as the product changes.
- Why it matters to your business
- In client work, I look for the same dependencies: what could change behind the visible field?