jSentinel AI
We build AI systems — and, because we are a security company first, we build them secure by design. From strategy to a running corporate LLM or RAG assistant, hosted in the EU with data sovereignty built in, not bolted on.
What we build
AI Strategy & Advisory
Where AI actually pays off in your business — use-case discovery, feasibility, build-vs-buy, architecture and a realistic roadmap. Vendor-neutral, with the risks named up front.
AI App & Software Development
AI-powered applications, end to end — LLM & RAG integration, copilots, agents and the surrounding product. Production engineering, not a demo.
Corporate LLMs
Private, company-internal LLMs on your terms — self-hosted or EU-cloud, fine-tuning & adaptation, access control and audit. Your data stays yours.
RAG System Development
Retrieval-augmented systems over your own knowledge — ingestion, chunking, embeddings, retrieval quality, tenant isolation and evaluations that prove it works.
Personal AI Assistants
Assistant systems for a person, role or team — connected to your tools and data, with clear boundaries on what they may read and do.
Secure by Design
Every build carries our security DNA: prompt-injection & exfiltration defenses, least-privilege tools, guardrails. Need only the security lens? See AI-Security.
How we work
From idea to a system you own — security designed in at every step, not audited in at the end.
- Discover Use-case, feasibility and build-vs-buy — with the risks and data constraints named up front.
- Design Architecture for model, retrieval and tools — trust boundaries, tenant isolation and access control from the start.
- Build Production engineering of the app, corporate LLM, RAG pipeline or assistant — not a throwaway demo.
- Harden & evaluate Prompt-injection & exfiltration defenses, guardrails, and an adversarial evaluation harness wired into CI.
- Operate & hand over Self-hosted or EU-cloud rollout — then it's yours: code, models, prompts and pipelines.
Build and secure — one team
Most AI shops can ship a prototype, but can't tell you how it leaks. We come from security, so building and hardening aren't two vendors — they're the same people.
Build → jSentinel AI
- Strategy, AI apps, corporate LLMs, RAG & assistants
- We develop your AI system
- Security baked in by default
Secure → AI-Security
- Threat modeling, guardrails, evaluations
- We harden it — yours or a third party's
- The dedicated security lens — standalone →
jSentinel AI builds it · AI-Security hardens it. When we build, you get both.
Who it's for
Companies putting AI to work on their own data and processes — internal assistants, knowledge retrieval, product copilots — that need to be trustworthy enough for production, not just a proof of concept.
Especially where privacy, multi-tenancy or regulation make a generic public chatbot a non-starter.
Questions, answered
Do we have to host it ourselves?
No — self-hosted, EU-cloud and hybrid setups are all on the table. The right answer depends on your data sensitivity and compliance needs.
Which models do you use?
Open-weight or commercial — we’re vendor-agnostic and choose per use case, budget and compliance posture.
How is this different from AI-Security?
AI-Security secures AI systems (yours or a third party’s). jSentinel AI builds them — with that security expertise included by default. See AI-Security →
Can you upskill our team too?
Yes — see the Academy, including AI-Security for Developers.