About Jozef
Senior backend engineer and software architect with 15+ years building
data-intensive, distributed systems for HR Tech, public sector, biometrics,
and e-commerce.
Currently leading the development of a custom ETL platform in Go at EZMID,
owning architecture decisions from ingestion and orchestration to
transformation, monitoring, and Kubernetes-based production deployments.
Core stack & expertise:
– Backend: Go (primary), Java, Python
– Architecture: Distributed systems, microservices, REST APIs, ETL pipelines
– Data: PostgreSQL (GORM), MongoDB, custom data pipelines and integrations
– Cloud & DevOps: GCP (GKE), AWS, Docker, Kubernetes, CI/CD, Terraform, Grafana
– Frontend (supporting): React for internal dashboards
– AI tooling: Hands-on with Claude Code and AI-assisted development workflows
for backend engineering, code review, and infrastructure automation
Selected past work includes:
– Custom ETL platform in Go (EZMID, current)
– Biometric R&D extension with palm vein scanning (Innovatrics)
– Nationwide e-commerce backend in Java Micronaut (AVO Platform, South Africa)
– HR & municipal Java EE systems with workflow engines and authentication (P&I, 8 yrs)
Available for part-time engagements (5–10 hours/week) in:
– Backend development in Go or Java
– System architecture and technical consulting
– DevOps, Kubernetes, and cloud infrastructure
– Data pipeline and ETL design
– AI-augmented development workflows
EU-based (Slovakia), invoice-ready, fluent English. Remote-first.
Let's talk about your project.
Slovak
Native or bilingual
English
Fluent
German
Basic
Can work on-site
Bratislava (up to 50km)
Experience
- P&ISoftware DeveloperHUMAN RESOURCESMay 2013 - June 2021 (8 years and 1 month)Long-term backend developer and system architect for HR and municipal systems. Built and maintained Java EE infrastructure for complex forms, authentication, and workflow engines. Tech lead in PEP team
- EZMDs.r.oDeveloper/Architect/DevOpsDIGITAL AND ITMarch 2021 - Today (5 years and 4 months)Bratislava, SlovakiaStarted as Java developer, transitioned to Go-based backend engineering andarchitecture. Currently leading the development of a custom ETL platform in Go— owning architecture, REST API design, data pipelines (PostgreSQL via GORM,MongoDB), Kubernetes deployment on GCP, and observability with Grafana.Selected engagements:- SynkBridge — customer integration platform. Architecture, DevOps, Java → Go migration.- Innovatrics — palm vein biometric R&D extension. Scanner interface layers, image preprocessing, SDK extensions.- AVO Platform (South Africa) — nationwide e-commerce backend in Java Micronaut. API orchestration, secure auth flows, distributed team coordination.
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Education
- Bc.University of Konstanfin Philospher2009Applied Informatics
- Applied Informatics (no degree)Masaryk University, Brno2011Master's program coursework, did not complete final exams.