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Mikhail Litvintsev

@mikhaillitvintsev

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Senior Backend Developer at ARBO who cut critical financial operations from 8 hours to 3 minutes with RabbitMQ.

Thailand

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What I'm looking for

I'm open to remote opportunities.

At ARBO, I developed backend modules for financial calculations and complex business logic across a portfolio of 120 products. I also migrated more than 100 workflows to asynchronous processing with RabbitMQ, reducing critical operation time from 8 hours to 3 minutes.

I delivered more than 70 integrations with external and partner platforms using REST APIs, webhooks, and callbacks. I strengthened reliability with retry and recovery mechanisms, reducing unsuccessful operations by approximately 99%.

Previously, at USEDESK, I re-engineered a legacy document-management service in Laravel, shortening the release cycle for new functionality from approximately five days to three hours. My work has also included backend systems for financial services, automotive lending, customer communication, and cryptocurrency trading.

Experience

Work history, roles, and key accomplishments

Current

Senior Backend Developer

Current

ARBO

Feb 2024 - Present (2 years 8 months)

Developed and enhanced core backend modules for financial calculations and complex business logic across 120 products. Designed and delivered over 70 integrations with external platforms, migrated workflows to asynchronous processing, and optimized SQL queries.

PHP Yii 2 RabbitMQ REST APIs Webhooks Callbacks SQL PostgreSQL MySQL Redis Docker Linux

Senior Backend Developer

USEDESK

May 2022 - Feb 2024 (1 year 9 months)

Developed and maintained production integrations with HubSpot CRM, Gmail, and telephony services for a platform supporting over 100,000 customer accounts. Re-engineered a legacy document-management service to Laravel and expanded PHPUnit test coverage.

PHP Laravel PHPUnit PHPStan HubSpot Gmail Telephony SQL PostgreSQL MySQL Redis Docker

Backend Developer

FAST

Jul 2020 - May 2022 (1 year 10 months)

Designed and developed backend business logic for automotive lending products, including financial workflows and data-processing logic. Built end-to-end integrations with 5 banking services and automated generation of over 100 financial reports.

PHP MySQL SQL REST APIs Financial Systems Data Processing

Backend Developer

FORWARD

Aug 2019 - Jul 2020 (11 months)

Developed backend functionality for a CRM platform used by a U.S. energy broker, supporting customer data and operational workflows for over 15,000 clients. Built complete integrations with 3 cryptocurrency exchanges and implemented safeguards against financial losses.

PHP CRM REST APIs Cryptocurrency Exchange APIs SQL MySQL Data Processing