We Manage Fintech Infrastructure from Topology to Audit Room
PCI-DSS Level 1 since 2014. 50+ audits, zero failures. From topology design to SPoF analysis, network isolation to OS hardening, firewalls to logging infrastructure — our team sits in the audit room.
Getting PCI-DSS Certified Is Easy. Living It Is Hard. We've Been Living It for 10+ Years.
In 2015, we entered the PCI-DSS certification process on behalf of a client. At that time, there were no QSAs (Qualified Security Assessors) in Turkey — auditors came from Poland for years. Since then, we've been through 50+ audits and never failed a single one. We became Turkey's first PCI-DSS Level 1 Service Provider.
For our fintech clients, we don't just provide "compliant infrastructure" — we deliver end-to-end engineering covering every PCI-DSS requirement: from topology design to standard compliance, drills to SPoF analysis, network isolation to OS hardening, firewall rules to logging infrastructure.
It doesn't end after certification — our NOC and early response services continue 24/7 under our SLA agreement.
From Certification to Operations
Two-phase approach: first we make you compliant, then we keep you compliant.
Phase 1 — Preparation & Certification
Topology Design
- Network architecture, segment isolation, CDE definition
- SPoF (Single Point of Failure) analysis
- Firewall zoning, DMZ design
Your topology diagram must be ready when the auditor arrives — we draw it.
Network Isolation & Security
- VLAN segmentation, micro-segmentation
- Firewall rule set design and configuration (Fortigate)
- IDS/IPS configuration, access control lists
PCI-DSS Req. 1: Install and maintain network security controls.
OS Configuration & Hardening
- Linux/Windows server hardening
- Unnecessary service and port closure, CIS Benchmark
- Patch management, secure configuration baselines
PCI-DSS Req. 2: Apply secure configurations to all system components.
Logging & Monitoring
- Centralized log collection and correlation
- PCI-DSS compliant immutable audit trail (Elasticsearch)
- Log retention policies, anomaly detection
PCI-DSS Req. 10: Log and monitor all access.
Encryption & Key Management
- TLS 1.2/1.3 configuration, AES-256 data encryption
- HSM integration (Utimaco — FIPS 140-4)
- Card data tokenization and masking
PCI-DSS Req. 3 & 4: Protect stored and transmitted cardholder data.
Audit Preparation & Coordination
- Gap analysis and remediation plan
- QSA coordination, evidence file preparation
- Drills (incident response, DR)
No surprises when the auditor arrives — we prepare everything in advance.
Phase 2 — Continuous Operations
Certified — Now Comes the Hard Part
24/7 NOC & Early Response
- Continuous monitoring under SLA agreement
- Early response: <15min first response
- Incident response procedures, escalation chains
Continuous Compliance Monitoring
- Configuration drift detection
- Regular security scans
- PCI-DSS annual renewal support, change management
Capacity & Performance Management
- Bandwidth monitoring via LibreNMS (95th percentile)
- Service and SSL monitoring via Uptime Kuma
- Capacity planning and scaling recommendations
From TSM to E-Invoicing — Fintech Software Engineering
Beyond PCI-DSS compliant infrastructure, we also develop specialized software that the fintech sector requires.
TSM Software
POS terminal management, key distribution, terminal security module applications
E-Invoice / E-Archive
GİB integration, Paraşüt integration (active in production)
Payment Infrastructure
POSNET 3D Secure, tokenized card storage, installment management
BDDK Compliance
Infrastructure compliant with Banking Regulation and Supervision Agency requirements
GİB Compliance
Revenue Administration e-document integrations
HSM Integration
Utimaco HSM configuration, FIPS 140-4, cryptographic key management
E-Money Infrastructure
PCI-DSS compliant transaction infrastructure for BDDK licensed e-money institutions, tokenization
Loyalty / Points Programs
Payment and points consolidation, closed-loop payment systems infrastructure
Which Regulation Do You Need to Comply With?
| Regulation | What It Requires | VeriTeknik's Role |
|---|---|---|
| PCI-DSS v4.0 | All systems that process/store/transmit card data | End-to-end compliance: topology → audit → operations |
| ISO 27001:2022 | Information security management system | Certification scope design, control implementation |
| KVKK (6698) | All systems processing personal data | Data minimization, consent, local data residency |
| BDDK | Banking and payment institutions | Infrastructure requirements, reporting, audit preparation |
| GİB | E-invoice/e-archive obligation | Integration development, Paraşüt connection |
| BKM | Interbank Card Center requirements | 72-hour breach notification, PCI-DSS compliance |
Our Fintech References
A Startup Was Born from This Expertise
Onlayer (PCI Checklist) — a SaaS platform that digitizes PCI-DSS compliance processes. Graduated from İş Bankası Workup, received 1.2M TL investment from Maxis. Our expertise runs so deep that a separate company emerged from it.
Let's Assess Your Fintech Infrastructure
Let's discuss your current PCI-DSS compliance status and infrastructure needs.
- PCI-DSS gap analysis
- Compliance roadmap
- Schedule technical meeting
Let's discuss your current PCI-DSS compliance status and infrastructure needs.
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