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Antonio Tsvihun

@antoniotsvihun

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Software Engineer in Test specializing in Python-driven data and automation testing.

Ukraine

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What I'm looking for

I am seeking a role focused on data-focused test automation and engineering within collaborative teams, leveraging CI/CD and cloud tools, with opportunities to mentor and improve data quality and processes.

I am a Software Engineer in Test with extensive experience building and maintaining automation for data-heavy systems, primarily using Python and Pytest. I design and extend test frameworks, validate data migrations and AI-generated data, and write advanced SQL/NoSQL queries to ensure dataset consistency.

I have worked across CI/CD pipelines (Jenkins, CircleCI, Harness, Azure DevOps, GitHub Actions), multiple databases (PostgreSQL, MySQL, Oracle, MongoDB, BigQuery) and tools (Playwright, Selenium, Postman, JMeter, Docker), and I leverage AI tools like Copilot and ChatGPT to speed coding and analysis. I also contribute to documentation, code review, mentoring, and informal team leadership.

I bring strong test theory, SDLC and Scrum experience, practical system administration background, and a focus on SOLID, design patterns and Lean Thinking to deliver reliable automation and accurate data validation for production systems.

Experience

Work history, roles, and key accomplishments

Current

Software Engineer in Test

Current

Confidential

Jan 2025 - Present (1 year 5 months)

Develop and maintain Python-based autotests and data-validation pipelines for a US real estate client, improving data consistency across BigQuery, Postgres and MongoDB while supporting CI pipelines and mentoring team members.

Python Pytest Playwright Google BigQuery PostgreSQL Jenkins CircleCi Data Validation API Testing

Data Engineer / Test Automation Engineer

Confidential

Mar 2023 - Dec 2024 (1 year 9 months)

Led data migration validation and automation for a US real estate client, creating migration reports, processing jobs via Jenkins, querying BigQuery, extending Python tooling and mentoring newcomers across a 20-person team.

Python Pytest Google BigQuery SQL Jenkins Postman Git Data Migration Code Review

Software Engineer in Test

Confidential

Nov 2022 - Mar 2023 (4 months)

Implemented integration and API autotests in C#, JMeter and Postman for an oil & gas client, configured CI with Azure DevOps and produced test plans and reports to ensure reliable system integrations.

C++JMeter Postman Azure DevOps NUnit SQL API Testing Integration Testing CI CD

Test Automation Engineer

SoftServe

Mar 2022 - Sep 2022 (6 months)

Authored Selenium UI and API tests, designed POM-based frameworks, managed GitHub repos and CI with Actions, produced test strategy and reports, and served as Scrum Master for a .NET web UI training project.

C++Selenium NUnit GitHub Actions Docker SQL Test Strategy ReportPortal

System Administrator

Epsilon TM

Jun 2009 - Aug 2020 (11 years 2 months)

Supervised a team of system engineers, administered Unix and Windows servers, deployed and monitored virtual infrastructure (Xen, VMware) and implemented monitoring and backup solutions over an 11-year tenure.

Xen VMWare Zabbix Acronis VPN Network Administration

System Administrator

Oras LLC

Implemented CRM and virtual PBX integrations, deployed cloud and monitoring solutions (Hetzner/AWS), managed backups and access control, and provided remote support and network monitoring.

Linux Windows Administration Hetzner AWS Zabbix Backup Remote Support Network Monitoring