Goran Brestovac

Background

About Goran Brestovac

Experienced Software Architect with 10+ years of engineering expertise in delivering high-performance systems across technology stacks. Comfortable operating across the entire software stack—from low-level systems to high-level architecture—and driven by a passion for solving complex technical challenges through systems thinking and clean, maintainable code.After completing my Master’s thesis in Sweden, I began my professional career at Ericsson Nikola Tesla in Croatia.Seeking broader international exposure and more technically demanding challenges, I relocated to Germany, where I’ve since been involved in architecting and building distributed systems for projects with strict requirements on scalability, reliability, and security.As an Oracle Certified Expert, I bring deep expertise in Java-based technology stacks, modern software architecture, and containerized environments—alongside hands-on experience in firmware and embedded systems development.Technical Skills & ExpertiseSoftware Engineering- Full-stack development with Java & JavaScript/TypeScript- Frameworks: Spring Boot, Quarkus, Angular, Vaadin, GWT- Mobile: Native Android development- Messaging: RabbitMQ, Apache Kafka (incl. Kafka Streams)- Databases: MySQL, PostgreSQL, Oracle DB, SQL Server (SSIS), MongoDB- APIs: REST, SOAP, GraphQL, gRPC- Build: Maven, Gradle- Version control: Git, SVNSoftware Architecture & Design- Architecture styles: Layered, Event-Driven, Microservices, Microkernel, Client-Server- Design principles: Domain-Driven Design Event-Driven Design (EDD)- Transactional patterns: ACID, Saga (choreography/orchestration), Event Sourcing with CQRS- Security: OAuth 2.0, KeycloakDevOps & Cloud-Native- Containerization: Docker- Orchestration: Kubernetes, Docker Swarm- CI/CD: Jenkins, Git-based pipelines- Artifact & Package Management: Nexus, Helm- Monitoring & Observability: Prometheus, Grafana, Loki, Jaeger- Application Servers: Oracle WebLogic, Apache TomcatCertifications- Oracle Certified Java Developer (5 certifications total)Embedded/Firmware- 3+ years of experience in embedded systems development- Embedded C/C++ programming on Silicon Labs EFR32BG22 (Series 2) SoCs- BLE firmware development using Silicon Labs Bluetooth Low Energy (BLE) SDK- Experience with real-time constraints, memory/resource optimization, and peripheral integration (UART, I2C, GPIO, etc.)Languages- German (fluent), English (fluent), Swedish (conversational)