Liudas Jankauskas · QA on time
No buzzwords. Just software quality that actually holds.
I’ve been testing software since 2007. High-risk systems, high load, APIs, security, all the ugly edge cases your team stopped seeing because they stare at the same product every day.
I don’t sell “10x AI magic”. I help you ship fewer embarrassing bugs.
Where I’m actually useful
I work best in systems where bugs are expensive: money lost, angry customers, regulators, reputation. I care about risk more than about tool fashion.
High-risk & high-load systems
- Web & mobile apps that matter to the business
- Microservices, queues, APIs, data pipelines
- High load (1M+ req/s), failover, resilience
- Gov, fintech, telecom, enterprise
QA strategy, not checkbox testing
- Risk-based approach instead of “test everything” fairy tales
- Clarifying what we will NOT test and why
- Helping dev teams own quality, not throw it over the fence
- Fixing messy, pointless automation
Hands-on testing & reviews
- Functional testing of critical flows
- Performance, reliability and basic security checks
- Exploratory testing where specs are weak
- Honest review of your existing QA setup
I join as an external brain: I ask annoying questions, map risks, and then break the system in the same ways your users or attackers will.
Rentgen
Rentgen is an API testing tool focused on automated exploratory testing and rapid defect discovery.
Rentgen generates and executes large numbers of validation, robustness and protocol-level tests from a single API request.
The project originated from practical API testing work and is closely related to the Automation Before Automation (ABA) concept described in the research section.
Rentgen is designed to complement existing testing frameworks by helping teams discover issues before investing in long-term automated test suites.
Visit rentgen.ioTraining & courses
I train testers and people switching into IT to think like testers, not to blindly follow test cases.
- Foundations of software testing and real-world QA process
- From backlog and specs to test ideas that actually find bugs
- API testing, non-functional basics, OWASP Top 10 intro
- Mix of manual, exploratory and basic automation
Let’s talk like adults
No sales scripts. Send me a message with what you’re building, what went wrong or what you’re worried about. If I can help – I’ll say how. If not – I’ll say that too.