# Maria Sokolova

![Maria Sokolova](https://api.dicebear.com/10.x/notionists/svg?seed=Maria&backgroundColor=e9f5fd)

Backend engineer, Go · Belgrade · 8 years of experience

I build payment and billing services that stay up at peak load. Six years with Go, before that PHP.

## Projects and results

Refund service rewrite
Moved refunds from a monolith to a separate Go service with an idempotent API. Refund time dropped from 5 days to 4 hours, support tickets about refunds fell by half.

Load tests before the holiday season
Built a load profile from real traffic and found two bottlenecks in the database a month before the peak.

## Experience

- 2021 - now: Senior backend engineer, Contoso Travel. Payments and refunds.
- 2018 - 2021: Backend engineer, an e-commerce marketplace.

## Skills

Go, PostgreSQL, Kafka, gRPC, Kubernetes, Observability

## Portfolio and evidence

- <https://example.com/maria-sokolova/talks>
- <https://example.org/msokolova/code>

## Contacts

- Email: maria.sokolova@example.com

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Updated: 2026-09-19
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