I'm a Senior QA Engineer with over five years of experience in software quality assurance. I specialize in automated testing for a diverse range of applications, including web apps, mobile apps, backend systems and blockchain systems. My expertise extends across various technologies such as SOAP APIs, REST APIs, GraphQL APIs, Websockets, and gRPC, on platforms including AWS, EVM (Ethereum VM), Substrate, and Cosmos networks. I am deeply committed to enhancing software quality through innovative testing strategies and robust QA processes. Additionally, I am a big fan of Substrate, enjoying exploring and developing on this robust framework for blockchain innovation.

• Programming Languages: JavaScript, TypeScript, Python, Solidity, Golang
• Scripting: Bash
• Cloud Technologies: AWS (EC2, Lambda, S3, RDS, CloudWatch, API Gateway, ECS, ECR, EventBridge)
• Blockchain Platforms: Ethereum VM, Substrate, Cosmos, Web3.js, Polkadot.js, ethers.js
• QA Tools & Technologies: Selenium, Cypress, Playwright, WebdriverIO, Appium, Browserstack, Docker, Kubernetes, Mocha, Jasmine, Pytest, Chai, k6.js, Detox.js, ZombieNet, Acala Chopsticks
• Monitoring Tools: Grafana, Prometheus, Sentry, New Relic, Horizon
• Test Management Tools: JIRA, TestRail, Zephyr
• CI/CD and DevOps Tools: GitHub Actions, GitLab CI/CD
• QA Expertise: Test automation, Performance testing, Security testing, Continuous Integration/Continuous Deployment, DevOps Practices, Mobile Testing, Smart Contracts Testing, Blockchain Testing

• Container Management: Docker, Kubernetes, Portainer
• Databases: PostgreSQL, MySQL, MongoDB, Redis
• Project Management Tools: Jira, Asana, ClickUp, Trello, Linear, Basecamp

• Enjin NFT Migration: Actively involved in testing during the migration of over 200 million NFTs from Ethereum to the Enjin blockchain. This was a pivotal moment for Enjin, aimed at enhancing scalability and reducing transaction costs, significantly impacting the blockchain ecosystem. Read more about this migration.
• Efinity Parachain Migration to Enjin Relaychain and Matrixchain: Sole QA tester for the migration of the Efinity Parachain to the new Enjin Relaychain and the creation of Enjin Matrixchain. My role was critical in overseeing and ensuring the quality and stability of the entire migration process. Read more about this triple migration.
• Key Role in Enjin Blockchain's "Triple Migration": As the only QA Engineer, I played a pivotal role in the token and NFT migration processes to Enjin Blockchain, ensuring rigorous testing and quality assurance across all phases of the migration. This included a major transition of governance and staking mechanisms, setting foundational security and functionality for the new blockchain ecosystem. Details on the migration progress.

• LinkedIn: krystianplominski
• Email: [email protected]

• Certifications:
  • Certified Associate in Software Testing (CAST)
  • CompTIA IT Fundamentals
  • [PCAP-31-02] PCAP – Certified Associate in Python Programming, Python Developer
  • ITIL Foundation Level, Altkom Akademia
• Awards: Top Rated Plus freelancer on Upwork

I am passionate about leveraging cutting-edge technologies to solve complex problems in software quality. If you're interested in collaborating on innovative projects that require meticulous testing and high-quality assurance, please feel free to reach out!