You will get Fintech Consultancy & software development
Project details
I will help you build, fix, or scale Java-based software solutions tailored to your business needs. With over 7 years of experience, I specialize in developing secure, scalable, and high-performance applications using Java, Spring Boot, and modern development practices.
One of my recent projects includes Kadipay, a Buy Now, Pay Later (BNPL) Fintech platform where I led the development of the complete backend and frontend architecture. I implemented core features like user onboarding, credit evaluation, repayment schedules, and seamless third-party integrations using Java Spring Boot, Apache Camel, and RESTful APIs.
Whether you're looking for a quick bug fix, a new feature, or a full system built from scratch, I can deliver clean, maintainable code with proper documentation and testing. My focus is on writing production-ready software that aligns with your goals and timelines.
Let’s turn your vision into reality with robust Java solutions.
One of my recent projects includes Kadipay, a Buy Now, Pay Later (BNPL) Fintech platform where I led the development of the complete backend and frontend architecture. I implemented core features like user onboarding, credit evaluation, repayment schedules, and seamless third-party integrations using Java Spring Boot, Apache Camel, and RESTful APIs.
Whether you're looking for a quick bug fix, a new feature, or a full system built from scratch, I can deliver clean, maintainable code with proper documentation and testing. My focus is on writing production-ready software that aligns with your goals and timelines.
Let’s turn your vision into reality with robust Java solutions.
Programming Languages
HTML & CSS, JavaScript, JavaCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$40
|
Standard
$75
|
Advanced
$100
|
|---|---|---|---|
| Delivery Time | 1 day | 5 days | 10 days |
Number of Revisions | 2 | 4 | 9 |
Number of Pages | 1 | 2 | 4 |
Design Customization | - | - | |
Content Upload | - | ||
Responsive Design | |||
Source Code |
About Zubair
Lead Engineer | Java | Architect | DevOps | Spring boot | GCP | OCI
44%
Job Success
Lahore, Pakistan - 12:50 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.
Please describe what you want built, fixed, or improved in detail.
Project details, preferred tech stack, design mockups, access credentials, timeline, and any specific requirements or constraints you'd like me to consider before starting.