Looking for a job

Usman Ejaz

@usmanejaz

Message

I build reliable fintech APIs and payment infrastructure at scale.

Pakistan

Message

What I'm looking for

I'm open to full-time remote and contract roles globally where I can build reliable backend APIs, fintech and payment infrastructure, secure cloud integrations, and scalable automation.

At i2c Inc., I build and maintain PCI-DSS-compliant payment infrastructure for 200+ enterprise clients across 30+ countries. I’ve delivered 20+ RESTful microservices and supported 216 live API endpoints handling card-processing workflows with sub-100ms response times and a 99.99% uptime SLA.

I modernise Java systems end to end, from migrating Java 8 to JDK 21 and Apache Ant to Maven to hardening security modules and batch reconciliation services. I also bring Python, cloud, CI/CD, data automation, and full-stack project experience across Spring Boot, Django REST Framework, Flask, AWS, Azure, React, and PostgreSQL.

Experience

Work history, roles, and key accomplishments

Current

Software Engineer

Current

i2c Inc.

Jun 2024 - Present (2 years 4 months)

Architected and delivered 20+ RESTful microservices using Spring Boot and Apache Struts, serving 216 live API endpoints with sub-100ms response times. Maintained 5 globally-deployed fintech applications for 200+ enterprise clients across 30+ countries, ensuring 99.99% uptime SLA.

Java EE Spring Boot Microservices REST APIs Docker PCI DSS

Associate Software Engineer

Optimus Fox @ DataRovers

Oct 2023 - Jun 2024 (8 months)

Built interactive Power BI dashboards using DAX measures and calculated columns, reducing client reporting time by ~40%. Deployed and monitored machine learning models on Azure ML, automating model retraining pipelines to maintain prediction accuracy above 90%.

Python Power BI DAX Azure ML GitHub Actions CI CD REST APIs