I am a Senior Java Developer with 12+ years of experience building enterprise-grade applications using Java, Spring, and cloud-native architectures. I lead cross-functional teams to design scalable microservices, optimize performance, and deliver robust cloud solutions at scale. I mentor developers, drive technical excellence, and thrive in fast-paced environments. My focus areas include RESTful APIs, serverless patterns with AWS, containerization with Docker and Kubernetes, and building reliable, secure software for enterprise clients.

EFAN SAEED

I am a Senior Java Developer with 12+ years of experience building enterprise-grade applications using Java, Spring, and cloud-native architectures. I lead cross-functional teams to design scalable microservices, optimize performance, and deliver robust cloud solutions at scale. I mentor developers, drive technical excellence, and thrive in fast-paced environments. My focus areas include RESTful APIs, serverless patterns with AWS, containerization with Docker and Kubernetes, and building reliable, secure software for enterprise clients.

Available to hire

I am a Senior Java Developer with 12+ years of experience building enterprise-grade applications using Java, Spring, and cloud-native architectures. I lead cross-functional teams to design scalable microservices, optimize performance, and deliver robust cloud solutions at scale.

I mentor developers, drive technical excellence, and thrive in fast-paced environments. My focus areas include RESTful APIs, serverless patterns with AWS, containerization with Docker and Kubernetes, and building reliable, secure software for enterprise clients.

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Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
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Language

English
Fluent

Work Experience

Senior Java Developer at Amazon Web Services (AWS)
January 1, 2020 - November 4, 2025
Led development of cloud-native applications using Java Spring Boot and microservices architecture, serving enterprise clients with scalable solutions. Architected and implemented high-performance RESTful APIs handling over 10 million requests daily with 99.9% uptime. Optimized performance through code refactoring and database tuning, achieving a 40% reduction in average response time. Mentored a team of 8 junior developers, conducted code reviews and technical training. Designed and deployed serverless applications using AWS Lambda, DynamoDB, and Kubernetes for container orchestration.
Java Software Engineer at Capital One
December 1, 2019 - December 1, 2019
Developed secure, PCI-compliant banking applications using Java 8 and Spring Framework. Implemented microservices for payment processing handling millions of transactions daily. Collaborated with cross-functional teams in Agile environment to deliver features under strict regulatory requirements. Reduced system downtime by 60% through proactive monitoring and automated error detection. Integrated third-party APIs and developed secure REST endpoints for mobile and web applications.
Java Developer at Accenture
February 1, 2017 - February 1, 2017
Built enterprise web applications for Fortune 500 clients using Java EE technologies and best practices. Designed and developed RESTful web services and SOAP APIs for system integration and data exchange. Integrated legacy systems with modern applications using various protocols and middleware technologies. Participated in complete Software Development Life Cycle from requirements gathering to production deployment. Worked closely with business analysts and stakeholders to translate requirements into technical solutions.
Junior Java Developer at Cognizant Technology Solutions
May 1, 2014 - May 1, 2014
Developed and maintained Java-based web applications for healthcare and financial services clients. Created efficient database schemas and wrote complex SQL queries for data manipulation and reporting. Fixed critical bugs and implemented new features based on changing client requirements. Participated in daily stand-up meetings, sprint planning, and retrospectives in Agile development environment. Collaborated with senior developers to learn best practices and improve code quality standards.

Education

Master of Science at New Jersey Institute of Technology
January 11, 2030 - November 4, 2025

Qualifications

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Industry Experience

Software & Internet, Professional Services, Financial Services