2025 – Present
Confidential client · sole developer, direct contract
Real-Time Data Platform (Fintech)
- Built a real-time market-data engine in Go tracking 16 instruments across 8 venues over 128 concurrent WebSocket streams, at roughly 1,280 messages/sec.
- Achieved 10-500 microsecond decision latency under production load, from signal detection to decision output.
- Added an AI consensus layer across three providers plus a Telegram approval flow, replacing 8-10 hours/day of manual monitoring.
GoWebSocketPostgreSQLKafkaDockerKubernetesPrometheusGrafana
2019 – Present
TSUN LLC · Kazakhstan, remote
Enterprise CRM Platform
- Key engineer on a high-load CRM for client, staff, transportation and order management, driving it through seven years of scaling stages.
- Owned backend (Laravel, Go) and frontend (React), delivering REST and WebSocket APIs plus payment gateway integration.
- Removed a critical bottleneck by migrating MySQL to PostgreSQL, moved queues from Horizon to Kafka, and re-platformed from Docker Compose to Kubernetes with CI/CD and Grafana/Prometheus monitoring.
LaravelGoReactPostgreSQLKafkaDockerKubernetesPrometheusGrafana
2016 – 2019
Medical Waste Management Center
Hazardous Waste Logistics System
- Built an industry-specific platform for managing medical waste disposal logistics, owning the full stack.
- Laravel, MySQL, Redis and REST API on the backend, with a Vue.js SPA on top.
- Integrated payment processing through a bank API.
LaravelMySQLRedisVue.js