Gábor C.

GáborCsSoft Kft is an independent consulting company providing senior-level engineering support to large-scale enterprise clients in banking, insurance, and financial services. The work focuses on cloud-native backend systems, microservices, and modernizing legacy platforms into scalable, containerized architectures.

• Built and maintained Spring Boot 3 microservices in Java 17–21 (and Kotlin where required), following clean code principles, modular design, and well-defined microservice boundaries
• Delivered backend-heavy features, including pricing logic for retail insurance products, by integrating with decision engine services via REST and Kafka
• Migrated legacy AngularJS admin interfaces to modern Angular 17+, reducing admin-side wait times by ~70% and improving maintainability
• Implemented event-driven communication between services using Apache Kafka and designed reliable retry and compensation workflows
• Extended and stabilized Camunda-based workflows by adding custom Java extensions and improving retry logic, reducing failed job escalations by ~35%
• Deployed fully containerized services (Docker + Kubernetes) on AWS, using CI/CD pipelines and Infrastructure-as-Code to ensure reproducible deployments
• Worked end-to-end on features under a “you build it, you own it” mindset: development, testing (JUnit, Cypress), documentation, deployment, and post-release support

OTP Bank is one of the largest banking groups in Central and Eastern Europe. Gabor worked as a Software Architect / Solution Architect, driving technical strategy, defining standards, and supporting multiple development teams across critical banking platforms.

• Designed service architectures for multiple product teams, created PoCs, patterns, and reference implementations to unblock development
• Drove API-first development using OpenAPI, standardized auditing with Hibernate Envers, and enforced testable microservices using Testcontainers
• Introduced Kafka-based messaging guidelines and integration patterns for inter-service communication and event propagation
• Led integrations with Hungarian government systems to automate regulatory reporting, reducing manual reporting time from ~20 hours/month to ~2 hours/month
• Contributed to long-term architecture vision (scalability, observability, security), ensuring business requirements were built on future-proof foundations
• Designed search database concepts for online real estate estimation and contributed to distributed ledger (DLT) initiatives inside the bank
• Defined Java chapter standards for logging, security, and auditing, and mentored senior engineers in applying these guidelines

GE Healthcare is a global medical technology and diagnostics company. In this role, Gabor acted as a Staff Engineer and Lead Developer, balancing IC work with technical leadership across multiple products and teams.

• Led modernization initiatives across several healthcare platforms, including creating PoCs to prove the feasibility of new architecture and performance goals
• Defined a migration path from legacy Spring 4 applications to Spring Boot 2.x with WebFlux, enabling reactive programming and reducing AWS infrastructure costs by ~30% (lower CPU/memory usage and cheaper EC2 instances)
• Improved the reliability of a 24/7 business-critical application, reducing average downtime from ~30 hours/month to ~3 minutes/month by redesigning throttling, caching, and fault isolation mechanisms
• Developed security and access control workflows (OAuth2, role-based access control) for REST endpoints integrated with GE’s internal authentication systems
• Drove the organization toward continuous delivery readiness in legacy systems by improving CI/CD pipelines, defining build and deployment standards, and containerizing services (Docker + Kubernetes)
• Delivered internal technical sessions and knowledge-sharing events to align teams on performance tuning, observability, and non-functional requirements

Gabor worked on an internal Shop Floor Execution application used by GE Aviation and GE Power repair facilities to manage repair workflows for complex components like turbines and motors. The system was delivered as a distributed microservice architecture.

• Designed and implemented complex backend features in Java and Spring Boot, breaking large process flows into reliable microservices
• Owned backend services end-to-end: data model design, API design, persistence layer (Hibernate/JPA), testing, and deployment readiness
• Coordinated integration with other microservice owners to maintain interoperability and data consistency across the platform
• Drove code quality through clean code practices, CI/CD, and test-driven development (JUnit); wrote guidelines and onboarding materials
• Integrated authentication and security layers with OAuth2 and contributed to the rollout of cloud-native deployments using Docker and container orchestration