Legacy systems, rebuilt with AI. Approved by people.
We modernise and secure critical information systems. AI agents
carry the workload; our experts approve every step, so the
result is fast, auditable and ready for your regulator.
✓ Agents 1–4: implementing module batch in parallel…
› Running regression and security tests…
Parsing legacy schema and job control… Mapping business rules to
the new model… Agents 1–4: implementing module batch in
parallel… Running regression and security tests… Waiting for
expert approval… Approved. Deploying to staging…
Parsing legacy schema and job control…Mapping business rules to the new model…Agents 1–4: implementing module batch in parallel…Running regression and security tests…Waiting for expert approval…Approved. Deploying to staging…
Agentic AI developmentLegacy modernisationExpert approval on every changeLocal models for sensitive dataAuditable deliverySecurity built into the processAgentic AI developmentLegacy modernisationExpert approval on every changeLocal models for sensitive dataAuditable deliverySecurity built into the process
What we do: agentic AI development, legacy modernisation, expert
approval on every change, local models for sensitive data, auditable
delivery, security built into the process.
Development and security as one discipline
AI speeds up development dramatically. It only adds value when
you can trust the result, run it and defend it in front of an
auditor.
AI development
Application development with AI agents
Our core service. We build and extend applications in a
governed process: several AI agents work in parallel on
analysis, implementation, review and testing, and an expert
approves every change before it is merged. You get speed
without losing control.
What we do
Web applications and internal
systems
Orchestration of several AI
agents in parallel
Automated review, security check
and testing
Local language models for
sensitive data
Integration with surrounding
systems
What you get
A working application, delivered
iteratively
Source code and documentation
A complete history of changes and
approvals
Who it’s for: companies that need an
application faster than traditional development allows,
without compromising on quality or control.
Modernisation
Rewriting legacy systems with AI
We move outdated applications to modern web platforms. AI
agents analyse the original code and documentation and
accelerate the rewrite. We prove feasibility at the start, not
at the end.
Any source technology, e.g. COBOL,
Oracle, DB2 or CICS
Outdated web frameworks and
libraries
Analysis of code, data and business
logic
Data migration and validation
You get: a proof of concept on a real
part of the system, a phased rewrite plan and a new system
with all data preserved.
Security
Cybersecurity advisory
Consulting, not testing. We design secure architecture and
infrastructure, set up how development is governed and show
you where AI can be used safely.
Security architecture of solutions
Infrastructure and cloud design
review
Governance of software development
Safe adoption of AI in development
and operations
You get: a target architecture, a
prioritised roadmap and clear rules for your teams and
suppliers.
Compliance
Compliance and audit readiness
We prepare organisations for audits and certifications. The
difference is the tooling: our own platform
Attesta and AI agents map requirements to
controls, collect evidence and keep it current, so the audit
stops being a yearly scramble.
Who it’s for: regulated entities
under NIS2 or DORA, companies preparing for certification,
and suppliers who must demonstrate their security level to
customers.
Frameworks
NIS2 and the Czech Cybersecurity
Act
DORA for the financial sector
NIST CSF and NIST SP 800-53
SOC 1, SOC 2 and ISO/IEC 27001
SWIFT CSP, HIPAA and other
frameworks
What you get
Gap analysis against the chosen
framework
Controls and evidence managed in
Attesta
Audit-ready documentation, kept
current by AI
Consulting
Independent IT advice
A second opinion on technology decisions, from people who
will not be selling you the solution.
IT architecture
ICT solution and vendor selection
Software development management
Strategy for adopting AI in development
From feasibility check to handover into operation
We run projects in clearly defined stages. After each one you
know what is done, what it cost and what comes next.
1
Analysis and validation
We analyse the system, goals and risks, and prove
feasibility on a small but real part of the solution.
2
Design and plan
Architecture, a breakdown into stages and clear acceptance
criteria for each of them.
3
Governed development
AI agents work in parallel; every change goes through review
and a security check.
4
Testing and handover
Testing in a real environment, documentation and handover to
your team or into operation.
Our own platforms
Attesta, Cadenca, Maestro, Receipta and a drug-interaction
checker, built and run the same way we deliver for clients.
AI in development, seen through the eyes of security and audit
Most suppliers focus on how AI speeds up development. We also
focus on how you will defend the result to your auditor, your
regulator and your own security team.
Traceability
Every development step is recorded. You know what was
proposed, who reviewed it and who approved it.
Data under control
Sensitive code and data can be processed by local models
without leaving your environment.
Security by design
Security review is a fixed part of the process, not an
afterthought before deployment.
Mapped to frameworks
We can link outputs to NIS2, DORA, NIST CSF, ISO 27001 or SOC
2 requirements.
Over thirty years in the Czech IT market
CI SYSTEMS, s.r.o. has been in business since 1992. We started
out supplying hardware and software, then added custom
development, our own products and ICT security. Today we
combine this experience with AI.
1992
Company founded
Hardware and software supply and IT services for business
customers.
2000+
Custom development
E-shops, payment gateways, ERP, CRM and content management
systems.
2010
Our own products
Our sdata system for encrypted data transfer won the Czech IT
PRODUKT of the Year award.
Today
AI and security
Governed AI development, legacy system modernisation,
cybersecurity and compliance.
Need to rewrite, extend or secure a system?
Tell us briefly about your project. We will come back with a
proposal for validating feasibility and the approach we
recommend.
