You will get Build a Secure Payment System Microservices Architecture
Project details
This project stands out as a production-grade global banking infrastructure built with a true distributed microservices architecture rather than a monolithic or loosely coupled system. It is designed to handle high-volume financial transactions with real-time processing, strong consistency where required, and event-driven scalability across services.
What makes it distinct is the combination of enterprise-level security and modern engineering practices: secure authentication flows, fraud detection pipelines, encrypted data handling, and compliance-ready audit logging are integrated from the ground up, not added as afterthoughts.
It also emphasizes operational excellence through full observability (logs, metrics, tracing) and automated CI/CD pipelines, enabling safe, continuous delivery in a high-risk financial environment. The system is built to be resilient, horizontally scalable, and ready for multi-region deployment with multi-currency wallet support.
What makes it distinct is the combination of enterprise-level security and modern engineering practices: secure authentication flows, fraud detection pipelines, encrypted data handling, and compliance-ready audit logging are integrated from the ground up, not added as afterthoughts.
It also emphasizes operational excellence through full observability (logs, metrics, tracing) and automated CI/CD pipelines, enabling safe, continuous delivery in a high-risk financial environment. The system is built to be resilient, horizontally scalable, and ready for multi-region deployment with multi-currency wallet support.
Programming Languages
HTML & CSS, ASP.NET, JavaCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$1,500
|
Standard
$3,500
|
Advanced
$5,500
|
|---|---|---|---|
| Delivery Time | 15 days | 60 days | 70 days |
Number of Revisions | 1 | 2 | 3 |
Number of Pages | 5 | 10 | 13 |
Design Customization | - | ||
Content Upload | - | ||
Responsive Design | |||
Source Code | - |
Optional add-ons
You can add these on the next page.
Additional Revision
+$500
Additional Page
(+ 10 Days)
+$250
Design Customization
(+ 10 Days)
+$800
Source Code
(+ 5 Days)
+$3,000About David
Full-Stack Developer - Spring boot | .NET | React, Next-js, TypeScript
Lagos, Nigeria - 7:31 am local time
I help startups and businesses design, develop, and deploy high-performance full-stack applications using clean architecture, scalable microservices, and modern DevOps practices. From backend API development to responsive frontend interfaces and production deployment, I deliver reliable, maintainable solutions focused on long-term growth
Core expertise:
• Java (Spring Boot, Spring security, Microservices, REST APIs)
• Python (Django, FastAPI, Flask, backend systems, automation)
• .NET / ASP.NET backend development
• React.js and Next.js frontend development
• Microservices and distributed systems architecture
• Docker containerization and production deployments
• NGINX configuration, reverse proxy, performance tuning, security, bot detection blocking.
• RabbitMQ and Apache Kafka (event-driven systems, messaging, queues)
• CI/CD pipelines with Jenkins
• Secure authentication and authorization (JWT, OAuth, RBAC)
• Database design and optimization (MySQL, PostgreSQL and relational systems)
• API integrations (fintech, payment systems, third-party services)
What clients value:
• Clean, maintainable, and production-ready code
• Responsive and modern UI implementation
• Strong architecture decisions that reduce future technical debt
• Performance-focused backend design
• Clear communication and reliable delivery
• Ability to handle complex backend systems end-to-end
I work well with fintech, SaaS platforms, enterprise systems, and startups building scalable infrastructure.
If you need a full-stack developer who can handle both complex backend engineering and modern frontend development let's discuss your project.
Steps for completing your project
After purchasing the project, send requirements so David can start the project.
Delivery time starts when David receives requirements from you.
David works on your project following the steps below.
Revisions may occur after the delivery date.
System Architecture Design
I will design a scalable microservices architecture covering wallets, payments, authentication, fraud detection, and observability layers.
Core Service Development
I will build and containerize core services including user auth, wallet management, transaction processing, and payment orchestration.