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Ekaterina Marinina

@ekaterinamarinina

Technical Support Engineer at Ozon Tech who improved incident diagnostics by 40% and automated operational tasks with Python.

Georgia

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What I'm looking for

I'm particularly interested in remote roles in Technical Support, Application Support, Support Engineering, IT Support, and technical operations, especially positions where I can combine troubleshooting with Python, SQL, APIs, and automation. I'm open to full-time remote opportunities.

At Ozon Tech, I provided L2 support across finance, financial analytics, and model development, investigating issues across application, API, and database layers. Custom Elasticsearch queries I developed improved diagnostic speed by about 40%.

I used SQL to troubleshoot database issues and validate data integrity across PostgreSQL, ClickHouse, MongoDB, and Redis. I also supported API integrations and tested releases, identifying critical bugs before production deployment.

At Федеральное Казначейство, I supported government organizations integrating with a federal financial document management system. I investigated incidents using test environments, application logs, and Oracle queries.

I developed Python tools to reconcile government contracts across three systems, reducing processing from a full working day to several minutes. I also automated Excel reporting, cutting preparation time from 3–4 hours to about 15 minutes.

Experience

Work history, roles, and key accomplishments

Technical Support Engineer

Ozon Tech

Jun 2024 - Mar 2026 (1 year 9 months)

- Provided L2 technical support to internal teams across finance, financial analytics, and model development, troubleshooting system functionality, API integrations, and data transmission issues.
- Investigated production incidents across application, API, frontend, backend, and database layers using application logs, Linux tools, and Elasticsearch. Developed custom Elasticsearch queries that impr

Technical Support Engineer

Федеральное Казначейство

Dec 2022 - Jun 2024 (1 year 6 months)

- Provided technical support to government organizations integrating with a federal financial document management system.
- Investigated and resolved technical issues by reproducing problems in test environments, analyzing application logs, and examining database state.
- Troubleshot financial document and integration issues using complex SQL queries in Oracle, including searches by document statu