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Dmirty Pulyaev

@0001966

Senior Python backend engineer building scalable, reliable distributed systems for fintech, high-throughput workloads, and cloud-native platforms.

United Kingdom

Message

What I'm looking for

I’m looking for a hands-on role where I can own meaningful features end to end, solve real user problems, and help shape technical decisions.

At Crown Agents Bank, I led the architecture and implementation of a greenfield enterprise banking billing platform as the primary backend engineer. I designed billing workflows processing over 100k SWIFT payment transactions per month and reduced execution time from a two-hour SLA to 11 minutes.

At WorldQuant, I led the migration of a portfolio simulation platform to Kafka-driven, Redis-first processing, reducing API latency by 80% and increasing simulation throughput by 2.5× during peak workloads. I also built PortoFino, an open-source distributed portfolio simulation platform with real-time progress tracking and over 95% backend test coverage.

Experience

Work history, roles, and key accomplishments

Current

Senior Software Engineer

Current

Crown Agents Bank

Jan 2025 - Present (1 year 9 months)

Led the architecture and implementation of a greenfield enterprise banking billing platform as the primary backend engineer. Designed a scalable Domain-Driven Design (DDD) architecture for billing workflows processing over 100k SWIFT payment transactions per month.

Python fastAPI PostgreSQL Hasura AWS ECS S3 Domain Driven Design Event Driven Architecture Distributed Systems

Senior Software Engineer

WorldQuant

Jun 2020 - Jan 2025 (4 years 7 months)

Led the migration of a high-load portfolio simulation platform to a Kafka-driven, Redis-first architecture for scalable event processing. Optimized distributed Celery pipelines processing up to 2 million CPU-intensive tasks per day.