Ivan
Sapronov
I build backend systems and products, design their architecture, set up AI agents and automation, and ship services to production.
- about 2 millionUsers servedNCR VoyixEnterprise system serving around two million users, run on GCP with full observability.
- approximately halfp95 latency, roughly halvedCCA GroupKotlin coroutines ran independent downstream calls concurrently, which roughly halved p95 latency under peak load.
- hours to minutesCI queue timeCreativeDockGitLab CI build queue times cut from hours to minutes.
- up to 8Services behind one BFFNCR VoyixOne backend-for-frontend and aggregator over up to eight downstream services.
Worked with NCR Voyix, CreativeDock, CCA Group, Ableneo and Voda Hory
Engineer and founder.
Now: building Ownira (in pilot).
- Based in
- Prague, Czechia
- Role
- Engineer, founder
- Languages
- EN · CS · RU
- Experience
- ~5 yrs on the JVM
- Status
- Open to projects
What I can do
Backend & fullstack products
Java, Kotlin, Spring, Angular, React, OpenAPI, PostgreSQL, Kafka, Redis.
Architecture & technical direction
Service boundaries, API contracts, code review, engagements led end to end.
AI agents & automation
LLM and MCP tooling at NCR Voyix; my own multi-agent pipeline from research to a deployed site.
Deploy and operate services
Kubernetes, Argo CD, Terraform, Helm, GCP, AWS, CI/CD, Grafana, Prometheus.
Proof in production
All projectsSelf-service menu platform
US restaurant clients update their own menus; one BFF API for every client app.
about 2 million usersup to 8 servicesNCR Voyix · 2025–26 · Java · Spring · Angular · GCPDynamic form engine
New form types in hours instead of days.
days to hoursp95 approximately halvedCCA Group · 2024 · Angular · Kotlin · CoroutinesThree services in three months
Ticketing, booking and subscription from zero; CI queues from hours to minutes.
3 servicesCI queue: hours to minutesCreativeDock · 2026 · Kotlin · K8s · Argo CD · AWS
Track record
CV on request- Years: 2026Company: CreativeDockRole: Kotlin Backend Developer · contractShipped: 3 greenfield services
- Years: 2025–26Company: NCR VoyixRole: Senior Fullstack EngineerShipped: BFF over up to 8 services · ~2M users
- Years: 2024Company: CCA GroupRole: Fullstack EngineerShipped: form engine · p95 latency approximately halved
- Years: 2022–24Company: AbleneoRole: Software EngineerShipped: Keycloak · Kafka · K8s
- Years: 2021–22Company: Voda HoryRole: Java Developer · contractShipped: CRM + analytics
Off duty
ULL pilot in training, motorcycle touring, 11 countries on the map, sport