<3%
Flaky Test Noise
Lowered unstable test failures from around 18% to below 3% by improving test isolation, refactoring architecture and stabilizing CI execution.
QA Engineer
Łukasz Wysocki
QA Engineer building reliable software through automation, observability, and quality-first engineering.
I design and implement scalable test automation strategies that reduce regression time, detect critical defects early, and strengthen CI/CD pipelines. From test planning to performance validation, I connect business expectations with technical execution to ensure every release meets real-world quality standards.
Automation Stability: 99.3%
Regression Runtime: -42%
Release Confidence: +31%
qa-signal-console
- pass nightly-regression: 282 checks passed
- improved flaky-rate dropped from 18% to 3%
- blocked 3 breaking API changes prevented pre-release
- perf checkout p95 improved by 29%
$ run quality-gate --prod-readiness
About
Hi, I’m Łukasz Wysocki — a Senior QA Engineer focused on building reliable, maintainable and scalable test solutions.
Over the past 5 years, I’ve worked in finance, banking and healthcare — industries where quality isn’t optional. Systems must be stable, secure and predictable. That environment shaped how I approach testing: structured, risk-based and focused on long-term stability rather than quick fixes.
My core expertise includes:
- Test Automation (Cypress, Playwright, JavaScript)
- API Testing (Postman, Newman, REST API testing, Swagger)
- CI/CD Testing (Jenkins pipelines, automated quality gates)
- Performance & Stress Testing (JMeter)
- Regression, Functional and E2E Testing
- Test Strategy and QA Audits
- Agile / Scrum environments
I specialize in building automation frameworks based on clean architecture principles such as Page Object Model and data-driven testing. I focus on reducing flaky tests, improving maintainability, and integrating testing directly into CI/CD pipelines.
Beyond tools, I bring analytical thinking, strong attention to detail and solid root cause analysis skills. I don’t just report bugs — I investigate why they happen and how to prevent them in the future.
If you’re looking for a Senior QA Engineer in Poland or remote across the EU, who combines technical depth with business awareness, we should talk.
Measurable Proof
-42%
Faster Regression Cycles
Reduced daily regression time by restructuring test suites, prioritizing critical paths and automating high-value scenarios in Cypress.
-20%
Hotfix Releases
Improved risk-based testing and release validation, leading to fewer urgent post-release fixes.
-36%
Integration Defects
Reduced defects detected in staging environments by strengthening API validation and introducing structured regression strategy.
How I Work
01
Requirement & Risk Analysis
I start by analyzing business objectives, system architecture and technical constraints. Instead of testing features in isolation, I map risks across workflows, integrations and edge cases to identify where failures would have the highest business impact.
02
Test Strategy & Coverage Design
I design a scalable test strategy that balances functional, regression, API and performance testing. Coverage is defined based on risk and product maturity, ensuring stability without creating unnecessary overhead.
03
Automation Framework Engineering
I engineer scalable test frameworks in JavaScript using Cypress or Playwright. I apply clean code principles, modular architecture, Page Object Model and data-driven patterns to ensure maintainability and low flakiness. Test code is treated with the same standards as production code.
04
CI/CD Quality Integration
I integrate automated testing directly into Jenkins pipelines with optimized execution strategies. Parallelization, environment configuration and controlled test data management ensure fast, stable and reproducible builds.
05
Observability & Failure Analysis
I focus on meaningful reporting, failure diagnostics and root cause analysis. When tests fail, I investigate whether the issue lies in the product, environment or test architecture. The objective is signal clarity, not noisy pipelines.
06
Scalability & Continuous Improvement
As systems evolve, I continuously refactor automation layers, reduce technical debt and improve execution efficiency. I optimize test suites to maintain fast feedback loops while increasing coverage and reliability.
Tech Stack Matrix
E2E Automation
92%
- Playwright
- Cypress
- Data-Driven Testing
- Cross-browser CI
API Quality
89%
- Postman
- Newman
- Swagger / OpenAPI
- Schema Validation
Performance
82%
- JMeter
- Grafana
- Performance Budgets
- Load testing
CI/CD Reliability
90%
- Jenkins
- GitHub Actions
- Quality Gates
- Release Health
Skills
- Test Automation Engineering
- Cypress Automation
- Playwright Testing
- JavaScript
- REST API Testing
- Postman & Newman
- Regression Strategy
- Root Cause Analysis
- Clear Technical Communication
- Attention to Detail
- Git & Version Control
- CI/CD Pipeline Integration
- Performance Testing
- Linux
- Agile / Scrum
Quality Signals
Strategic Quality Ownership
I take responsibility for quality beyond test execution. From defining test strategy to aligning coverage with business goals, I ensure that quality decisions support delivery timelines, product stability and long-term scalability.
Business-Aligned Risk Management
I focus on preventing costly production failures by prioritizing high-impact workflows and integration risks. My approach reduces release uncertainty and helps teams ship with confidence, especially in finance, banking and healthcare environments.
Cross-Functional Leadership
I work closely with developers, product owners and stakeholders to improve requirements clarity, acceptance criteria and release readiness. By embedding quality into daily workflows, I help teams move from reactive bug fixing to proactive quality engineering.
Experience
QA Engineer · Santander Bank Polska
Specialized in API testing and CI/CD quality integration within a banking environment. Developed automated regression tests in Cypress, maintained and refactored legacy test suites, and embedded quality checks into Jenkins pipelines. Conducted performance testing with JMeter and supported release stability through structured root cause analysis and advanced reporting.
QA Engineer · Mangetic Point/FFW
Contributed to enterprise Drupal projects for international clients, generating and maintaining detailed test cases and scenarios. Executed manual and automated tests, performed visual regression and accessibility testing (WCAG 2.1 AA), and collaborated closely with development teams to ensure stable, high-quality releases.
QA Engineer/Data Specialist · Grupa.IT
Worked on Drupal-based digital platforms, executing manual and automated tests using Python and Selenium. Designed structured test documentation and visual reports to support release transparency. Created and validated data models aligned with business requirements and verified data across multiple system endpoints to ensure consistency and integration stability.
Projects
API Tests Generator
A Swagger/OpenAPI-based tool that automatically generates API tests, enabling manual testers to quickly create structured and repeatable API validation suites.
OpenAPI · REST · Test generation logic · Python
Read case studyCypressFuse
An advanced Cypress-based E2E automation framework combining Cucumber, visual testing, Lighthouse audits and cross-browser execution via BrowserStack.
Cypress · Cucumber · JavaScript
Read case studyShift-Left Quality Initiative
Introduced early-stage API validation and contract testing practices to reduce late-stage defects and improve release confidence.
REST API · Postman · Swagger/OpenAPI · Cypress · Jenkins · CI/CD
Read case studyContact
kontakt@lukaszwysocki.com
linkedin.com/in/lukwysocki/
github.com/lwysocki
Location: Szczecin, Poland