Hi, I'm Ali Raza
I am a Full Stack Java Developer with hands-on experience delivering SaaS platforms, fintech backends, e-commerce systems, invoicing microservices, prepaid recharge solutions, and enterprise web applications. My work focuses on Spring Boot, REST APIs, distributed systems, secure backend architecture, and product features that improve reliability, scalability, and business outcomes.
Ali Raza
Full Stack Java & SaaS Developer
My Story
The Journey So Far
My experience combines backend engineering depth with real product delivery across freelance, agency, and product-team environments. I have built and maintained systems for digital vouchers, fiscal invoicing, prepaid services, mobility platforms, agile planning products, and e-commerce applications.
Most of my work has centered around Java and Spring-based ecosystems, where I design APIs, connect distributed services, improve business workflows, and ship features that directly support revenue, operations, and customer experience.
Today, I focus on building scalable SaaS and fintech-oriented products with Spring Boot, REST APIs, secure integrations, and modern frontend experiences for teams that need reliable software and measurable business impact.
My Approach
Values That Guide My Work
Clean Code
Maintainable systems that keep paying off as products evolve.
Scalability First
Architectures designed for long-term growth and operational clarity.
Security Focused
Particularly critical for fintech, APIs, and enterprise software.
Continuous Learning
Leveraging modern AI tooling, cloud-native practices, and strong engineering fundamentals.
Experience
Career Timeline
Upwork Freelancer
Delivering backend and full stack solutions for voucher platforms, fiscal invoicing systems, mobility services, and prepaid recharge products across distributed microservice environments.
- OVV - Voucher Management & Validation System: enhanced the full voucher lifecycle including creation, validation, distribution, SAP-based workflows, direct eShop sales, and invoice generation integration.
- Connected WPayment, Persons, eshop, FIP, and OVVCP services through REST APIs to support reliable purchasing, user management, invoice generation, and voucher visibility for end users.
- Fiscal Invoice Printing (FIP): built an invoice-generating microservice that reduced invoice processing time by 40%, improved billing operations, and supported multiple downstream services.
- CarHome: developed and maintained the Customer Warehouse and Consumption module powering the purchase and use of carwash-related products at partnered stations.
- Prepay: replaced legacy Brodos Paysafecard integration with the Paysafecard Direct API, improved transaction stability, and reduced recharge flow failures.
Full Stack Java Developer
Contributed to Kendis, a Finland-based scaled agile platform used in more than 90 countries by large international organizations including BMW.
- Led development of the Kanban Board module, improving planning efficiency by 35% and increasing adoption through flexible columns and mapping capabilities.
- Built milestone management enhancements that improved visibility and tracking efficiency by 40% across Agile Release Trains and related workflows.
Full Stack Java Developer
Built and modernized the Auto Consult Portal for automobile consulting services with a focus on performance, migration safety, and better user experience.
- Led redevelopment of the client portal, reducing page load times by 35% and improving engagement through a more modern frontend experience.
- Optimized Spring Boot backend processes, cutting response times by 50% and supporting a zero-downtime migration from the legacy platform.
Full Stack Java Developer
Developed a multi-module e-commerce platform with both admin and customer-facing modules, focusing on maintainability, delivery speed, and performance.
- Led development of a multi-module Maven architecture that improved maintainability and accelerated feature delivery by 25%.
- Optimized database access and query performance, reducing load times by 35% and improving the experience for both admin and customer modules.