Carlos Maceira Garcia Coni
Backend Architect | Fintech & Payment Systems
Designing scalable payment systems, secure transaction architectures, and high-availability microservices for the fintech industry.
3+
Years Fintech
PCI-DSS
Compliant Systems
ISO 8583
Payment Protocol
ITBA
Teaching Assistant
About
Engineering Payment Systems
Backend engineer with 3+ years building payment processing systems at INI, specializing in PCI-DSS compliant microservice architectures. I design, implement, and maintain backend services that handle secure financial transactions at scale.
My background spans fintech payment gateways, ISO 8583 integrations, and distributed systems built with Go and NestJS. I bring deep expertise in DevOps practices, cloud infrastructure (Azure/GCP), and container orchestration with Kubernetes.
Previously led IT infrastructure operations in the Argentine Army and served with the United Nations in Haiti. Currently a teaching assistant for Microservices Architecture at ITBA, combining industry practice with academic rigor.
Core Focus Areas
- Payment Gateway Design
- ISO 8583 Protocol Integration
- PCI-DSS Compliance
- Microservice Architecture
- Cloud Infrastructure (Azure / GCP)
- CI/CD & DevOps Automation
Education: Computer Engineering — Facultad de Ingeniería del Ejército
Technology
Tech Stack
Tools and technologies I work with daily to build robust financial systems.
Languages
Frameworks
Infrastructure
Data
DevOps
Cloud
Expertise
What I Do
Backend Architecture
Designing modular, maintainable backend systems with clean separation of concerns, domain-driven design, and event-driven communication patterns.
Payment Processing
Building PCI-DSS compliant payment gateways, ISO 8583 message processing, and secure transaction pipelines for fintech platforms.
Distributed Systems
Engineering high-availability microservice architectures with service mesh, message queues, and resilient inter-service communication.
Secure Transactions
Implementing end-to-end encryption, tokenization, fraud detection integration, and compliance-driven security controls.
DevOps & Infrastructure
Automating CI/CD pipelines, container orchestration with Kubernetes, infrastructure as code, and cloud-native deployment strategies.
Experience
Back-end Payments Developer
Design, implementation, and maintenance of payment microservices. Cloud infrastructure, networking, and DevOps for PCI-DSS compliance.
Teaching Assistant — Microservices Architecture
Teaching microservices architecture patterns, distributed systems design, and hands-on labs for engineering students.
DevOps Engineer
DevOps engineering, CI/CD pipeline design, and infrastructure automation.
Company Commander — Networks & Systems
Led IT operations including networking, telephony, datacenter virtualization, and helpdesk for military infrastructure.
Projects
Selected Work
Representative projects showcasing expertise in payment systems, backend architecture, and DevOps.
Coming Soon
I'm currently curating my project portfolio. Check back soon for detailed case studies on payment systems, microservice architectures, and DevOps tooling.
Contact
Let's Connect
Interested in discussing fintech architecture, payment systems, or collaboration opportunities? Reach out.
carlostech.net.ar