Robert Dimitrov

Cloud-agnostic B2B2C platform for catalogue discovery, real-time coordination, and multi-party deal flows.

• • Backend: Explicit SQL with pgx and PostgreSQL for controlled queries, transactions, and data integrity.
• • Search & Cache: Meilisearch catalogue search with DragonflyDB caching, distributed locking, and pub/sub.
• • AI Cataloguing: LLM-powered listing creation for both single items and bulk catalogue creation.
• • Infrastructure: Kubernetes-based deployment model supporting a cloud-agnostic architecture.

Event ticket marketplace focused on event sourcing, compensating sagas, and high-contention reservation flows.

• • Event Sourcing: Seat inventory as event streams with optimistic concurrency to prevent double allocation.
• • Sagas: Redpanda-backed order and inventory choreography with compensating transactions.
• • Read Models: Projection workers and live seat-state updates for customer and vendor interfaces.

Microblogging platform with Go/Rust services, gRPC boundaries, and event-driven fanout and indexing.

• • Microservices: Go and Rust services with gRPC-based internal communication.
• • Data Pipeline: Event-driven outbox workflows via Redpanda for fanout and Meilisearch indexing.
• • Client Interface: SvelteKit, TypeScript, and vanilla CSS web interface.

Distributed timer service designed to manage timers across partitions without overlapping execution.

• • Coordination: Memberlist gossip and consistent hashing for partition ownership rebalancing across nodes.
• • Synchronization: PostgreSQL LISTEN/NOTIFY and Valkey logs for config updates and timer firing history.

Image-sharing platform structured as a modular monolith with a Go backend and Server-Side Rendered (SSR) SvelteKit frontend.

• • Application Core: RESTful Go backend using pgx and explicit PostgreSQL interactions.
• • Data Pipeline: Outbox-driven Redpanda workflows for fanout and Meilisearch indexing.