Sabina Yesmin

Lead Software Engineer @ Infosys

About

I’m a Lead Software Engineer with 10+ years of experience building scalable, high-performance backend systems across FinTech, Healthcare, and distributed platforms. I specialize in Java, Spring Boot, and Microservices Architecture, with a strong focus on designing systems that are reliable, resilient, and built to scale. My work revolves around solving real-world engineering challenges — from handling high-volume transactions to building low-latency, event-driven applications. Over the years, I’ve: • Built scalable microservices using Java & Spring Boot • Designed event-driven architectures with Kafka and messaging systems • Developed reactive APIs using Spring WebFlux • Worked across cloud platforms like AWS & Azure • Deployed applications using Kubernetes and containerization • Improved system observability using OpenTelemetry, Prometheus & ELK • Optimized performance through JVM tuning and database improvements I enjoy working on system design, distributed systems, and performance optimization, where thoughtful engineering decisions can make a meaningful impact at scale. Beyond development, I actively contribute to mentoring engineers, conducting code reviews, and driving architectural decisions in Agile environments. I’m currently open to opportunities where I can contribute to building scalable platforms, cloud-native systems, and robust backend architectures. Let’s connect if you’re working on backend engineering, microservices, or cloud technologies.

Country

United States

City

Tampa

Industry

Information Technology & Services

Skill

Azure Kubernetes Service (AKS), Azure SQL, Cosmos DB, Cloud SQL, JVM tuning, API design, GCP Pub/Sub, Azure Service Bus, J2EE, Spring Cloud, Hibernate, Java Web Toolkit (JWt), Kafka, Spring MVC, Jenkins, MEAN, Java, Spring Boot, Docker, MySQL

Experience

Lead Software Engineer

Infosys

2024-7 - Present · 2 yrs 3 mos

United States

Leading the design and development of Java-based microservices architecture using Spring Boot & Spring Cloud Building reactive APIs (Spring WebFlux) improving latency by 25% Designing multi-tenant SaaS platforms using DDD & CQRS Implementing resilience patterns (Circuit Breakers, Retries, Bulkheads) Deploying and managing services on Azure Kubernetes Service (AKS) Driving event-driven architecture using Kafka & Azure Service Bus Establishing observability with OpenTelemetry, Prometheus, Azure Monitor Automating CI/CD pipelines using Azure DevOps & GitHub Actions Ensuring security with OAuth2, JWT, and Spring Security Mentoring developers and contributing to system design decisions.

Senior Software Engineer

Azumo

2021-11 - 2024-6 · 2 yrs 8 mos

United States

Built scalable backend services using Java, Spring Boot for healthcare systems Developed REST APIs and optimized SQL queries for performance Designed real-time data pipelines using Apache Kafka Implemented healthcare integrations using HL7/FHIR standards Worked in hybrid cloud (AWS + Azure) environments Deployed applications on AWS EKS, EC2, RDS Automated infrastructure using Terraform & CloudFormation Improved monitoring using Prometheus & ELK Stack Built CI/CD pipelines using Jenkins & Git workflows Contributed to frontend development using React & Angular

Software Engineer

Concepta Tech

2015-7 - 2021-10 · 6 yrs 4 mos

United States

Developed backend systems using Java, Spring MVC, Hibernate for financial applications Built secure REST APIs for payments and account management Migrated authentication to Spring Security with SAML SSO Integrated payment gateways and financial systems Implemented asynchronous workflows using RabbitMQ Improved performance through query optimization and system tuning Supported production systems and ensured high availability Contributed to modernization of legacy systems into scalable architectures Worked with GCP services for data processing workflows