Senior QA Automation Engineer · Spain · Remote

Quality engineering for complex systems.

10+ years building scalable test automation for web, APIs, distributed systems, blockchain workflows and AI driven applications. Python and Java at the core, with CI/CD, risk based testing and end to end quality ownership.

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95% automation coverage
Oleksandr Lozytskyi
Oleksandr LozytskyiQA Automation · SDET · Quality Engineering
Available
30% less pipeline failure
10+years in QA & automation
95%API endpoint coverage
95%automation coverage
30%pipeline failure reduction
Quality engineering

I build automation that makes release readiness visible, repeatable and measurable.

Python
Java
Pytest
Playwright
REST Assured
Requests
Selenium
Cucumber / BDD
Postman
API & Integration Testing
CI/CD
Azure DevOps
AWS CodeBuild
GitLab CI
Jenkins
Docker
PostgreSQL / SQL
Linux / Bash
Blockchain Testing
Langflow
LLM Workflow QA
Allure
JMeter / Locust
Risk Based Testing
Career

Experience that scales.

From manual QA foundations to automation leadership across web, API, blockchain and AI driven systems.

10/2025 · Present

Senior QA Automation Engineer

Blockchain based application
  • Built a Python, Pytest and Playwright automation framework from the ground up.
  • Raised automated coverage from 0% to 95% for a new blockchain financial service.
  • Reduced pipeline failure rate by about 30% and runtime from 5 hours to 3 hours.
  • Created API and on chain tests covering transaction submission, confirmation and finality.
  • Defined automation architecture and mentored four engineers.
01/2024 · 10/2025

QA for Langflow based Application

AI workflows · Web · API
  • Designed web and API test cases for internal and client facing applications.
  • Automated functional and regression scenarios with Python, Pytest, Requests and Playwright.
  • Contributed to the internal automation framework and AWS CodeBuild integration.
  • Validated AI workflows, prompts and API chains in Langflow based systems.
03/2023 · Present

Quality Assurance Engineer

IntellectEU
  • Automated web and API testing with Python, Pytest, Playwright, Java, Selenium and REST Assured.
  • Integrated automation into AWS CodeBuild, Azure DevOps and GitLab CI.
  • Supported requirements analysis, test design, environments and release validation.
  • Worked with developers, DevOps and product stakeholders on testability and acceptance criteria.
11/2020 · 02/2023

Quality Assurance Test Engineer

Group BWT
  • Developed Java based UI automation with Selenium, Cucumber, TestNG and JUnit.
  • Led REST API automation with REST Assured and Postman, reaching 95% endpoint coverage.
  • Integrated test execution into Jenkins and GitLab CI and improved suite stability.
03/2015 · 10/2020

QA Engineer

Bineks.net
  • Created manual test cases from business and technical requirements for ecommerce platforms.
  • Managed defect lifecycle, functional, usability and regression testing across releases.
  • Contributed to quality gates, test documentation and cross functional QA processes.
Credentials

Continuous learning.

QA foundations combined with AI engineering and modern automation skills.

IBMAI Engineering
ISTQBCertified Tester Foundation Level 4.0
IBMDeep Learning with PyTorch
IBMGenerative AI: Prompt Engineering Basics
IBMMachine Learning with Python
UdemyCypress Web Automation Testing
TrainingThe Complete Python Bootcamp
QATestLabSoftware Testing
Contact

Need reliable automation for a complex product?

alexandruvlozitskiy@gmail.com+34 651 957 392LinkedIn profile ↗Spain · Global remote
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