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Dmytro Smyrnov

@dmytrosmyrnov

Senior Backend Engineer at Maudau and Kimelo; improved product-import workflows and developed a federated GraphQL API.

At Maudau, I improved merchant product-import tooling and catalog ingestion workflows, and implemented a partner ERP integration across business rules and data boundaries. At Kimelo, I designed features using C4 and developed a federated GraphQL API for a multi-service commerce platform for food distributors.

In my independent engineering work, I built Python tooling for reproducible firmware builds, resource checks and structured reports, and developed simulation-level sensor processing and telemetry workflows. Earlier, I led development of an omni-provider, multi-channel notification system at Bend Health and worked on integrations and high-load workflows across several product engagements.

Experience

Work history, roles, and key accomplishments

Current

Independent Engineering

Current

Sabbatical

Mar 2026 - Present (8 months)

Developed Python automation for reproducible firmware builds and resource checks. Built simulation and data processing for synthetic sensor observations and telemetry workflows.

Python Pytest Build Automation Deterministic Simulation C++17 Telemetry

Senior Software Developer

Maudau

May 2025 - Feb 2026 (9 months)

Improved merchant product-import tooling and catalog ingestion workflows. Implemented a partner ERP integration across business rules and data boundaries.

Ruby Ruby on Rails SQL ERP Integration Data Ingestion

Senior Software Engineer

Kimelo

Jul 2024 - Apr 2025 (9 months)

Designed features using C4 and developed a federated GraphQL API for a multi-service commerce platform for food distributors.

Ruby Ruby on Rails SQL RSpec GraphQL Apollo Federation C4 Model Diagrams

Senior Rails Developer

CreditNinja

Oct 2021 - Jul 2022 (9 months)

Developed third-party integrations, improved performance, and handled large CSV imports. Worked with AWS SQS/S3, SQL, RSpec, and an external loan-management system.

Ruby Ruby on Rails AWS SQS S3 SQL RSpec CSV Processing

Team and Tech Lead

SoftServe / Teladoc

Dec 2020 - Sep 2021 (9 months)

Managed the development team and made implementation decisions for a telemedicine product using Rails, GraphQL, and microservices.

Ruby Ruby on Rails GraphQL Microservices Team Leadership

Developer and Tech Lead

Zazmic / Boostr

Dec 2017 - Dec 2020 (3 years)

Built integrations with Salesforce, HubSpot, and Google services. Led product development, technical decisions, and delivery improvements; worked with Sidekiq and SQL/Arel.

Ruby Ruby on Rails Salesforce HubSpot Google API Sidekiq SQL Arel