melon231
Senior Backend Engineer
Senior Python backend engineer with 8+ years of experience in fintech and high-load distributed systems. Experienced in API design, transaction validation, authentication flows, and automation frameworks.
Transitioning into Web3 infrastructure and blockchain engineering, focusing on Python-based backend services, RPC integrations, on-chain data processing, bots, and AI-assisted automation.
I bring a reliability-first mindset and production experience in security-critical systems.
Experience: 8 years
Yearly salary: $130,000
Hourly rate: $70
Nationality: 🇺🇦 Ukraine
Residency: 🇵🇱 Poland
Experience
AQA
Lohika 2021 - 2023
RESTful automation API testing (Postman, pytest). UI Automation testing. Component Integration Testing. E2E testing. Code reviewing. Participate in all Scrum Ceremonies. Requirements Analysis. Test Documentation(TestCase, BugReport, TestPlan, etc.). MacOS Administration. Jenkins CI. Kubernetes & Docker. AWS (S3). MySQL. BitBucket (Git). Extend and Maintenance existing project Test Framework. Writing unit test for UI using JS and Jest Framework
AQA
OnApp 2020 - 2021
RESTful API testing. Functional, UI, Exploratory, Regression testing. Wrote automation test scenarios, test framework maintenance. Manual testing and Automation testing. Validated and verified a technical documentation for contradictions, ambiguities and incompleteness. Wrote easy-to-reproduce bug reports and reported them via Jira. Made cross-browser (Chrome, Firefox, Opera) testing. Wrote Test Cases based on technical documentation(in TestRail tool). Execute Test Cases and Checklists. Executed Ad Hoc and Exploratory test procedures at all the stages of SDLC. Hands-on experience with Jenkins (Allure reporting). Developing Migration tools for VM based on KVM hypervisors
Junior QA/AQA engineer
LvivSoft 2018 - 2020
Diverse of testing types. Web-testing. Checklist writing, bug reporting. Using tools Kibana, Graphana, Jira, Google Stack Driver; BigQuerry, Pytty/Kitty terminal. Data validation. Writing automated python scripts to collect, and analyze metrics and data. Working with console on servers(PuTTy/SSH2/WinSCP)
Skills
git
jira
python
english
polish
russian
ukrainian