A decade of operating real production systems.
D2 Solutions is a platform engineering, SRE, and AI infrastructure firm founded by Dejan Dukic in Resetari, Croatia. We build, run, and reason about infrastructure that has to keep working.
Why D2 exists
After a decade operating production systems, from telecom data centers to multi-cluster Kubernetes and AI/GPU platforms, the same gap kept showing up. Engineering teams understood their code, and SREs understood their clusters, but nobody owned the line between them. So we built a practice and a product around that line.
The practice is D2 Solutions: scoped quarterly engagements for platform engineering, SRE, and AI infrastructure work. The product is Horizon, an AI engineering operations platform that connects sprint reality to live cluster state. Horizon runs in production across 7 Kubernetes clusters and 10+ tenants.
D2 Solutions is incorporated in Croatia as D2 Solutions d.o.o., registered with the Commercial Court of Osijek. Full statutory details on the Impressum page.
Where we have been.
- 2023 - Present
Scoop Technologies d.o.o.
Senior DevOps EngineerMulti-tenant Kubernetes platform spanning 7 clusters with Istio ambient mesh, Helm-based deployments, and comprehensive monitoring on VMware Tanzu. AI/ML infrastructure with GPU operators and KAITO.
- 2021 - Present
D2 Solutions
Founder & EngineerFounded D2 Solutions, a platform engineering, SRE, and AI infrastructure firm. Builds and operates Horizon, an AI-driven engineering operations platform now running in production. Serves clients across Croatia and the EU on multi-cluster Kubernetes, observability stacks, and Azure or AWS GPU platforms.
- 2020 - 2023
BISS d.o.o.
DevOps EngineerDevOps engineering for enterprise clients. Kubernetes cluster management, CI/CD pipeline design, monitoring with Prometheus and Grafana, and infrastructure automation.
- 2012 - 2020
Iskon Internet d.d.
System AdministratorEight years at one of Croatia's largest ISPs. Progressed from technical support through system administration to data center operations. VMware virtualization, physical server management, and network infrastructure in telecom-grade data centers.
The stack we run.
Platform & Orchestration
CI/CD & IaC
Cloud Platforms
Observability & SRE
AI Infrastructure
Security
The best infrastructure engineers think about what happens after deploy.
The run, the failure modes, the operator sitting in front of a dashboard at 3 AM. That mindset is why we build platforms and observability the way we do, and why we built Horizon to make production legible.