Technical Cases

Challenge

A fintech needed to process ISO8583 transactions with multiple acquirers and guarantee automatic failover without transaction loss during traffic peaks.

Solution

We developed a transactional gateway with intelligent routing based on priority and cost, HSM integration for PIN encryption, automatic reconciliation and a resilient Kafka queue for delivery guarantees.

Technologies

Challenge

A financial app in production was vulnerable to traffic interception attacks (MITM), root access and dynamic instrumentation via Frida on client devices.

Solution

We built an SDK with public key SSL Pinning (resistant to certificate replacement), runtime root and Frida detection, Play Integrity API validation and AES-256 encryption for sensitive data at rest.

Technologies

Challenge

A company with manual and repetitive operational processes spread across a legacy ERP, spreadsheets and third-party systems — each process took hours and was subject to human error.

Solution

We implemented AI agents with LangChain connected via n8n, with chain-of-thought reasoning for autonomous decision-making, REST/SOAP integrations for legacy systems and contextual memory to maintain state between executions.

Technologies

Challenge

A payment app about to go live needed an independent security assessment. The team had implemented protections (SSL Pinning, root detection, obfuscation), but without external validation oriented toward real attacks.

Solution

We conducted a full assessment with static analysis via JADX and Ghidra (secret detection, exposed native logic) and dynamic analysis with Frida — mapping real bypasses for each implemented protection. We delivered a report with evidence, CVSS scores and a prioritized remediation plan following OWASP MASTG.

Technologies

Challenge

A system with unpredictable traffic peaks caused timeouts, unavailability and no visibility into where bottlenecks were occurring — the team was reacting to incidents without concrete data.

Solution

We migrated to a cloud-native architecture with Kubernetes (HPA), Kafka messaging for service decoupling, a complete observability stack with OpenTelemetry + Prometheus + Grafana and real-time SLO dashboards.

Technologies