SAP Solution Architect · 15+ years · Helsinki, Finland
"In the dark night of all beings awakes to Light the tranquil man. But what is day to other beings is night for the sage who sees." — Bhagavad Gita
RAG is the most important technique for making AI reliable in enterprise settings. It gives an LLM access to your documents, data and knowledge at query time — so it answers from evidence, not from memory. This post explains what RAG is, how it works step by step, where vector databases fit in, and how SAP uses it in Joule and AI Core.
ChatGPT, Claude, Gemini, Joule — they are all powered by large language models. But what is an LLM actually doing when it responds to you? This post explains what an LLM is, how it is trained, what tokens and embeddings mean, and why LLMs predict rather than think — clearly, without the academic language.
SAP Business Technology Platform is the foundation of SAP's cloud strategy — but it can be hard to get a clear picture of what it actually is and what it does. This post explains BTP plainly: what the platform is, its four main pillars, the key services within each, and how it fits into a modern SAP landscape.
IaaS, PaaS and SaaS are the three cloud service models that every technology professional needs to understand. This post explains what each model means, who manages what, where real-world products sit on the stack, and how SAP BTP and S/4HANA Cloud fit in — clearly, without the marketing language.
APIs are one of the most targeted attack surfaces in modern software. This post covers the essentials every developer and architect needs to know — API keys, OAuth tokens, rate limiting, input validation, and the OWASP API Security Top 10. A practical reference whether you are building, reviewing, or securing APIs.
RAG is the most important technique for making AI reliable in enterprise settings. It gives an LLM access to your documents, data and knowledge at query time — so it answers from evidence, not from memory. This post explains what RAG is, how it works step by step, where vector databases fit in, and how SAP uses it in Joule and AI Core.
AI hallucinations are not a bug that will be fixed in the next model update. They are a structural consequence of how large language models work. This post explains what hallucination actually is, why it happens at a technical level, the different types, and what practical steps reduce it — without the hype or the panic.
ChatGPT, Claude, Gemini, Joule — they are all powered by large language models. But what is an LLM actually doing when it responds to you? This post explains what an LLM is, how it is trained, what tokens and embeddings mean, and why LLMs predict rather than think — clearly, without the academic language.
Most comparisons of SAP S/4HANA and ECC focus on marketing bullet points. This post explains what actually changed — the data model, the database, the user experience, and what it means for a real SAP landscape. Written by a consultant who has worked with both.
SAP Fiori's five design principles — role-based, adaptive, simple, coherent and delightful — are the foundation behind every Fiori app. They have not changed since 2013, and in 2025 SAP expanded Fiori into the full SAP Design System. This post explains what each principle means, why it exists, and what it means in practice for anyone building or configuring SAP applications.
SAP Business Technology Platform is the foundation of SAP's cloud strategy — but it can be hard to get a clear picture of what it actually is and what it does. This post explains BTP plainly: what the platform is, its four main pillars, the key services within each, and how it fits into a modern SAP landscape.
Areas where I design, build, and advise.
End-to-end solutions on SAP Business Technology Platform — integration, extension, and cloud-native development.
Designing and building intuitive Fiori apps that put the user at the centre of every SAP interaction.
Embedding AI capabilities into SAP landscapes — from BTP AI services to custom LLM integrations.
Architecture, migration planning, and implementation of SAP S/4HANA across industries and deployment models.
Guiding organisations through SAP-led transformation — from strategy and roadmap to go-live and adoption.
Making complex SAP concepts accessible — architecture documents, how-to guides, and developer content.
"I spent 10 years building SAP systems in India, then moved to Helsinki. That shift — between two very different ways of working and living — changed how I think about technology, people, and what good architecture really means."
Previously with Accenture; currently at Vivicta (formerly TietoEvry).
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