Case study: modernizing Core IT with TM Forum ODA, Kubernetes operators, and the CELL platform—cutting API onboarding from weeks to seconds.
Vodafone Greece · Platform Engineering · Kubernetes · TM Forum ODA
Christos Sotiriou — Software Engineer & Architect
Engineering complex systems.
Making them simpler.
Principal engineer building platforms, data systems and AI-enabled products.
17+ YEARS
Building production systems
200+ SERVICES
Designed, shipped and operated
MILLIONS OF USERS
reached through platforms
Selected work
The Digital eXperience Layer (DXL) is a Kubernetes middleware, and Vodafone Greece's digital backbone.
Vodafone Greece · kubernetes · software engineering
More selected work
Apps, platforms, products and experiments across mobile, backend and infrastructure.
View all workPublic engagements
Speaking, writing & community.
Conferences, meetups and writing about platform engineering, Kubernetes and the future of software delivery.
About
I design and build platforms, systems, and the tooling that teams and businesses need to succeed. Beyond coding. Beyond implementation. I connect needs with solutions.
— Christos Sotiriou
How I work
Architecture is not the diagram. It is the story of how a team moves from idea to production — and how fast that story goes.
01
Understand
Map the existing system, the team's constraints and the real problem nobody is writing down.
02
Simplify
Cut through complexity. Find the smallest change that moves the most weight.
03
Build
Ship iteratively. Automate the boring stuff so the team spends time on what actually matters.
04
Ship
Measure outcomes, not output. If it's not in production and being used, it's a hobby project.
Current focus
AI-native software systems.
I'm exploring how software changes when users express intent instead of navigating workflows — and when agents, retrieval and tools become part of the application architecture.
MCP Embeddings AI-native UX Retrieval Agents