Dmytro Chumariev

Software engineer

Dmytro
Chumariev

My work spans trading platforms, banking software and cross-platform games.

Selected work · Investment platform

Siimply Trade

2026

I developed the investment services and staff tools behind Siimply Trade, and migrated the trading backend to a new brokerage provider.

Investment services

TypeScript and NestJS services link the customer app with brokerage and banking systems. They handle onboarding, market data, trading, funding and portfolio reporting, supporting the process from opening an account to managing investments.

Operations and delivery

Extended the React and Next.js admin portal with customer management, funding reviews, order oversight and audit history, giving staff a shared view of accounts and transactions. Integration tests and automated AWS deployments support consistent validation and releases.

Earlier experience

Playtika

Software Engineer

Aug 2021 – Feb 2026

Delivered new content and client features for two live games on web, Android, iOS and Windows from a shared codebase. Initially focused on new slot content, then contributed across the full client of the second game.

C# · TypeScript

Quipu GmbH

Software Engineer

Aug 2019 – Aug 2021

Developed .NET features and SQL Server procedures for daily banking operations. Adapted the desktop application’s workflows to local requirements so the product could serve banks in different countries.

C# · .NET · SQL Server

Neural Labs

Junior Software Developer

Oct 2018 – Aug 2019

Turned invoice scans and photos into structured records through a workflow combining image processing, text extraction and data storage. Added a web interface for staff to browse and verify the results.

C# · Python · JavaScript · OpenCV · Tesseract

JSC CB PrivatBank

JavaScript Developer

Apr 2018 – Jul 2018

Translated legal processes for overdue interest and related debt into automated JavaScript and Corezoid workflows, standardizing routine case handling for bank staff.

JavaScript · Corezoid

Homelab

My home lab uses Proxmox and TrueNAS for virtualization and storage, Docker Compose for services, and Prometheus and Grafana for monitoring.

Education

Bachelor of System Engineering
Dnipro Polytechnic, Ukraine · 2019