Critical Engineering · Payments · Security · AI
Secure Software Engineering for Critical Systems, Payments and AI
We build scalable, secure and intelligent solutions for fintechs, technology companies and critical operations.
Specialties
Technical depth where it matters
We are not generalists. Each specialty reflects years of critical production projects.
Payment Systems
ISO8583, multi-acquiring, transaction routing and financial backend.
Mobile Security
mTLS, SSL Pinning, Play Integrity and Android Hardening.
AI & Automation
LangChain, autonomous agents and enterprise automation.
Scalable Architecture
Microservices, messaging, observability and cloud.
Compliance & Security
PCI DSS, MPoC, encryption and HSM.
Have a technical challenge?
Talk to a specialist and find the right solution for your system.
Portfolio
Critical Projects in Production
Systems that process payments, protect data and automate real operations.

Payment Gateway
ISO 8583 message processing with transactional routing to multiple acquirers.

Test Automation
Automation solution to increase reliability and reduce delivery time in software validation.

AI Agent Automation
Agents that connect systems, make decisions and execute actions based on real-time data.
Ready to build something solid?
Schedule a free consultation and see how APCosta can solve your business's technical challenges.