You will get a secure payment system with certified credit card protection
Project details
You will get a secure, professionally developed payment system that follows best practices in credit card data protection. As a certified specialist in credit card security, I ensure your application is safe, PCI-compliant, and trusted by users. Whether you're building a new Fintech platform or integrating a payment gateway, I bring the right experience and certification to deliver a secure solution.
Programming Languages
JavaScript, Java, TypeScriptCoding Expertise
Performance Optimization, Security, DesignWhat's included
| Service Tiers |
Starter
$27
|
Standard
$37
|
Advanced
$65
|
|---|---|---|---|
| Delivery Time | 5 days | 10 days | 21 days |
Number of Revisions | 5 | 7 | 9 |
Design Customization | - | - | |
Content Upload | - | ||
Responsive Design | - | ||
Source Code |
About Zubair
Lead Engineer | Java | Architect | DevOps | Spring boot | GCP | OCI
44%
Job Success
Lahore, Pakistan - 9:50 pm local time
With over 7 years of experience, I specialize in building scalable, high-performance microservices for Fintech and enterprise platforms. My core strength lies in Java (Spring Boot, Spring Cloud), combined with deep expertise in Kubernetes, NGINX gateways, NAT configurations, and secure API design.
I've led multiple successful projects, including:
KADIPAY (BNPL):
Designed a cloud-native microservices architecture with Spring Boot, RabbitMQ, and MySQL. Implemented advanced traffic routing using internal gateways, NAT, and NGINX for seamless scalability and performance.
SKILLS & TOOLS:
Backend: Java, Spring Boot, Spring Cloud, RabbitMQ, Kafka, Apache Camel
Networking: NGINX (API & main gateways), NAT Gateways, VPN, Kubernetes Service Routing, X-Forwarded headers
Cloud & DevOps: AWS, GCP, Azure, Docker, Kubernetes, Jenkins, GitLab CI/CD
Databases: MySQL, PostgreSQL, Redis, MongoDB
Security: OAuth2, JWT, SSL, mTLS
Frontend: React, Angular, JavaScript
Methodologies: Agile (Scrum/Kanban), TDD, Integration Testing
Available full-time and committed to delivering robust, business-aligned solutions.
CORE SKILLS:
- Java Spring Boot & Spring Cloud: Microservices, API Gateways
- Messaging Systems: RabbitMQ, Apache Camel, Kafka
- Networking & Infrastructure: NGINX (main + API gateway), NAT Gateways, Kubernetes Networking, X-Forwarded headers, VPN integration, service routing, and traffic control
- Security Solutions: OAuth, JWT, SSL for robust authentication and encryption
- Cloud Platforms: AWS, GCP, Azure (Serverless, Service Bus, VPC)
- OAuth2, JWT, SSL, Mutual TLS
- Databases: MySQL, Postgres, Redis, MongoDB
- API Design & Development: RESTful APIs, Scalable Application Design
- Proficient in SOLID principles, GoF design patterns, Domain-Driven Design (DDD), Clean and Vertical Slice Architectures, Unit of Work, and Repository patterns.
- CI/CD & DevOps Automation: Docker, Kubernetes, Jenkins, GitLab CI/CD
- Testing: Unit Testing with JUnit, Mockito, TestNG, Integration Testing
- Technical Decision Making, Performance Optimization, Cloud Cost Management
FRONTEND & MOBILE:
- HTML / CSS & JS
- React & Angular
- Flutter & React Native
- Modern JavaScript
- Responsive Design
🚀 I’ve solved 150+ algorithmic challenges on LeetCode, continuously sharpening my problem-solving and data structures & algorithms expertise.
Additionally:
Push Notifications: Experienced in setting up and managing push notifications for mobile and web apps using Firebase Cloud Messaging (FCM), APNs, and Web Push protocols.
Email Notifications: Implemented email systems for transactional and marketing emails using SMTP servers, SendGrid, Amazon SES, and JavaMailSender in Spring Boot.
Skills: Expertise in integrating and optimizing notification services for scalability and high-volume usage.
Steps for completing your project
After purchasing the project, send requirements so Zubair can start the project.
Delivery time starts when Zubair receives requirements from you.
Zubair works on your project following the steps below.
Revisions may occur after the delivery date.
Just share initial requirements regarding payment gateway and it's security