US-based gym management SaaS platform serving 150K+ athletes across 400+ gyms in the US, UK, and Canada.

• Shipped V1 of the platform, generating $1M for gym owners within the first week post-launch.
• Led UK market expansion: implemented timezone sync (Europe/London), VAT compliance, and localized Stripe payment flows including daylight-saving transitions across multi-location operations.
• Extended the platform into a full point-of-sale (POS) system across three checkout flows by building Stripe Terminal integration for 400+ gyms in US/CA/UK.
• Designed and built a Calendly-style coach self-booking system for 150K+ athletes (real-time credit validation, configurable intervals, Google Calendar conflict resolution), eliminating manual scheduling overhead across 400+ gyms.
• Eliminated booking conflicts across 100+ gyms by integrating Google Calendar with AWS SQS-backed async processing for real-time staff schedule synchronization.
• Designed and built a white-label email sender system (Mailgun + custom domain management) for 100+ gyms.
• Designed and implemented a Demo Gym system with time-limited and persistent account types, enabling the sales team to spin up pre-filled demo environments and accelerating prospect-to-customer conversion.
• Eliminated 100+ instances of duplicated formatting logic by designing and building a shared React localization hook (dates, time, currency, inclusive/exclusive tax) for US/CA/UK markets.
• Built an automated Python + AWS S3 ingestion pipeline, migrating 3,000+ contracts and waivers from Beta to V1.
• Reduced metrics dashboard load time 7.5× (from 3s to 400ms) by resolving 15+ N+1 queries.

Stack: Python, Django, TypeScript, React, PostgreSQL, AWS (S3, SQS, EC2), Stripe

Kazakhstan's national AI center, operated under Astana Hub — part of an ecosystem with 1,800+ companies and $630M in exports.

• Designed and operated production Kubernetes environments and CI/CD pipelines across 3 clusters.
• Deployed a production-grade RKE2 Kubernetes cluster from scratch on 5 VMs (3 control plane, 2 worker nodes), establishing a high-availability container orchestration platform.
• Architected automated backup infrastructure for 5 production databases and 8 self-hosted applications (GitLab CI/CD, MinIO S3); added registry cleanup pipelines that cut storage by 40%+ across 3 GitLab instances.
• Configured Prometheus/Grafana monitoring across 3 Kubernetes clusters (42 virtual machines), implementing automated Telegram alerting for disk, CPU, and RAM threshold breaches.

Stack: Python, Kubernetes, Rancher, Prometheus, Grafana, GitLab CI/CD, MinIO (S3), OpenNebula

A web studio specializing in custom SPA/SSR web applications and enterprise systems across education, logistics, and e-commerce.

• Contributed to React-Steroids, the company's open-source UI ecosystem library, adding components and improving documentation adopted across all studio projects.
• Built the frontend and backend for a SFU admissions campaigns system, the largest university in Siberia.

Stack: React, Redux, NestJS, TypeORM, PostgreSQL