Open to opportunities

M Ahmad

@mahmad

Senior Java developer specializing in scalable, secure backend systems, cloud-native microservices, and fintech platforms.

United States

Message

What I'm looking for

I seek senior backend roles building cloud-native, secure microservices at fintech or B2B SaaS firms, with mentorship, architecture ownership, and strong DevOps practices.

I am a progressive, results-driven Java developer with 10+ years of experience delivering scalable solutions for enterprise clients and industry-leading companies, advancing from Junior Engineer to Lead Developer. I specialize in monolith-to-microservice migrations, event-driven design, and building secure, high-performance systems for fintech and B2B SaaS domains.

I have led architecture and development for real-time scoring systems, migrated multiple monolith services to Kubernetes, and implemented CI/CD, blue/green deployments, and cost optimizations on AWS. I mentor engineers, partner with product and security teams to meet PCI-DSS and SOC 2 standards, and focus on code quality, performance optimization, and reliable delivery.

Experience

Work history, roles, and key accomplishments

Current

Lead Java Developer

Current

GoGo Meds

Oct 2021 - Present (3 years 11 months)

Led architecture, design, and development of microservices powering real-time credit scoring systems using Spring Boot, Kafka, and AWS Lambda; migrated 8+ monolith services to Kubernetes to increase scalability and uptime, mentored 6+ engineers, and reduced AWS costs via autoscaling and Terraform optimizations.

Java Spring Boot Kafka AWS Kubernetes Terraform GitHub Actions)

Senior Software Engineer

LucidWorks

Nov 2015 - Sep 2020 (4 years 10 months)

Developed scalable services for PayPal Wallet processing high-volume financial transactions; re-architected refund and dispute APIs with Spring Cloud and Redis to achieve sub-100ms response times, created SDKs adopted by 5 teams, and improved release confidence with contract testing.

Java Spring Cloud Redis Kafka Pact REST APIs Microservices

Associate Software Engineer

Kadro Solutions

Jul 2013 - Oct 2016 (3 years 3 months)

Developed backend services for QuickBooks Online including invoicing and payroll, refactored a Java EE monolith into modular Spring Boot services, automated batch payroll with Spring Batch and Quartz, and deployed 20+ backend modules serving thousands of users.

Java Spring MVC Spring Boot REST APIs Junit