Filip Czarnecki

Filip Czarnecki

QA Specialist – 7+ Years of Experience

Hi, I'm Filip – a Top-Rated QA Specialist with 7+ years of experience in software, game, and mobile testing. I've completed over 1000 hours on Upwork with a 97% job success score. My expertise spans a wide range of testing methodologies, tools, and platforms, including Unity, Unreal Engine, Jira, and ClickUp. I specialize in delivering high-quality bug reports, comprehensive documentation, and actionable insights that enhance software quality and user experience.

Services

Functionality QA

Functionality Quality Assurance ensures that your application works exactly as intended by verifying every feature against specified requirements and real-world user expectations. This process involves comprehensive manual and automated testing to detect defects, inconsistencies, and unexpected behaviors before the product reaches end-users.

Benefits:

  • Guarantees that all functionalities perform smoothly and as designed, reducing the risk of costly post-release bugs.
  • Improves user satisfaction by ensuring a reliable and bug-free user experience.
  • Helps meet project deadlines by identifying issues early in the development cycle.

Player Support

Player Support involves providing technical assistance and content-related help directly to the users of your application or game. By addressing user inquiries, resolving issues, and guiding players through difficulties, you increase player retention and build long-term loyalty.

Benefits:

  • Enhances the overall player experience by offering prompt and knowledgeable support.
  • Reduces negative reviews and boosts community engagement through effective communication.
  • Helps gather valuable user feedback for continuous product improvement.

Localization QA

Localization Quality Assurance ensures that your product’s content is accurately translated and culturally adapted for each target market. This involves linguistic checks, cultural relevance assessments, and functional testing of localized features to provide a seamless experience for users worldwide.

Benefits:

  • Prevents embarrassing translation errors and cultural mismatches that could harm your brand.
  • Expands your product’s reach by making it accessible and engaging for international audiences.
  • Ensures compliance with local regulations and standards in different markets.

Compliance QA

Compliance Quality Assurance verifies that your product meets all necessary platform requirements and industry standards, such as those set by PlayStation, Xbox, or mobile app stores. This testing covers technical guidelines, legal policies, and security protocols to guarantee smooth certification and market launch.

Benefits:

  • Avoids costly delays by ensuring your product passes platform certification processes the first time.
  • Reduces risk of legal or security issues post-launch.
  • Improves credibility with partners and end users through adherence to recognized standards.

Compatibility QA

Compatibility testing verifies that your application performs optimally across a wide range of devices, operating systems, and hardware configurations. This process helps identify environment-specific bugs and performance issues to ensure a consistent experience for all users.

Benefits:

  • Maximizes market coverage by supporting multiple devices and platforms.
  • Ensures stable and performant application behavior regardless of user setup.
  • Reduces customer complaints related to device incompatibility.

Selected Projects

Quality Assurance for mobile game

★★★★★ Jun 26, 2023 - Oct 28, 2024

"Filip delivered thorough, high-quality QA work with great attention to detail and excellent communication throughout the project."

$4,923.35 ($20.00/hr, 246 hours)

Home design PC game HOMETOPIA (Unity/C#)

★★★★★ Feb 1, 2023 - Oct 3, 2023

"Filip provided exceptional QA support for our Unity-based home design game, ensuring smooth gameplay experience across all levels."

723 hours

App tester for Android fitness app

★★★★★ Dec 30, 2024 - Jan 7, 2025

"Filip participated in testing an early version of our mobile app and provided feedback over the course of a few days in several surveys. Filip followed our instructions without any problems and did a good job in providing constructive feedback to help us further improve our app. Thanks!"

$10.00 (Fixed price)

Customer experience mapping Credit Cards PL

★★★★★ Mar 21, 2024 - May 25, 2024

"I can recommend to work with Filip for his engagement, availability, communications, and good quality of deliverables. His reports were detailed and provided actionable insights."

$200.00 (Fixed price)

Blog

How to Think Like a Tester?

A tester as a user, a tester as a software tester. The key aspect of software testing is the ability to perfectly embody a typical user - forgetting all your testing skills and knowledge about the project.

Questions every tester should ask:

  • Will the user know how to navigate the platform/app smoothly?
  • If the user has specific needs, will they immediately know where to look for certain functions?
  • Are all platform/app features intuitive and immediately understandable to the user?
  • Will the user know where to report an encountered error?

The way of thinking may vary for each person - to succeed, the pool of such questions should be as large as possible. There is no single right answer. As a tester, you should ask questions, be open to conversation with every team member. Be polite but get to the heart of the matter.

Qualities of a Good Tester

  1. Inquisitiveness - a tester should never stop at obvious errors that are immediately visible. They should look for bugs where others might have missed them, seeking scenarios to protect the product from errors that could affect customer or user dissatisfaction.
  2. Critical thinking - a software tester should be able to keep a cool head. Often there is little time to complete assigned tasks, and stress should never affect the quality of your work.
  3. Patience - this is a key trait because many tests require repeating certain actions. A tester must be ready to check the same functions multiple times.
  4. Communication skills - when a tester finds a bug, they should be able to communicate it perfectly, making the workflow between team members much clearer.
  5. Creativity - good testing requires thinking outside the box. As mentioned earlier, each user will have a different approach.

Thinking like a tester is not just about finding bugs, but also the ability to look at the product analytically and critically. A tester must view the application from the user's perspective while also ensuring compliance with documentation and requirements. This combination of creativity, inquisitiveness and thoroughness makes the tester a key link in the software development process.

Where to Start?

If you're just starting or want to start working as a software tester, I recommend familiarizing yourself with basic tools and databases used daily in every company:

  • OBS - your friend for recording everything happening on screen, with appropriate add-ons tracking mouse and keyboard input
  • Databases - get familiar with databases, learn how to navigate a few, and each new database will be easier to understand
  • TestRail - QA platform that enables creating, linking and optimizing all testing processes
  • Postman - API testing tool allowing sending HTTP requests, checking server responses and automating API tests
What next?
  • Look for junior positions or start with free/paid training
  • Build a testing portfolio - document your tests, found bugs and projects you participated in
  • Don't stop - set your professional goal

Contact

Feel free to reach out via email or LinkedIn.

filipczarnecki.k@gmail.com LinkedIn Profile