Java Developer Senior

Irfan Saeed

Senior Java Developer Spring Boot & Microservices Expert

Cloud & Backend Engineering Specialist

Washington, DC 202-***-**** *********@*****.***

SUMMARY

Innovative and results-driven Senior Java Developer with over 10 years of progressive experience in designing, building, and deploying scalable enterprise applications. Proficient in Core Java, Spring Boot, Microservices, and Cloud-native architectures (AWS, GCP, Azure) with a strong focus on performance, reliability, and security. Adept at API development, distributed computing, and system integration across large-scale environments. Skilled in DevOps automation, CI/CD pipelines, and containerization with Docker and Kubernetes. Recognized for delivering robust, maintainable solutions that align technology with strategic business goals. Passionate about engineering excellence, clean code, and continuous improvement. SKILLS

•Programming Languages: Java (Core, Advanced, Java EE), Kotlin, Groovy, Python, SQL, PL/SQL

•Frameworks: Spring Boot, Spring Cloud, Spring MVC, Hibernate, JPA, Struts, Micronaut, Quarkus

•Architecture & Design: Microservices, Event-Driven, Domain-Driven Design (DDD), RESTful APIs, MVC, Layered, Serverless

•Messaging & Streaming: Apache Kafka, RabbitMQ, ActiveMQ, JMS, Apache Pulsar

•Cloud & Infrastructure: AWS (EC2, ECS, Lambda, S3, RDS), Azure, GCP, Docker, Kubernetes, Helm, CI/CD (Jenkins, GitHub Actions), Terraform

•Databases: MySQL, PostgreSQL, Oracle, MongoDB, Redis, Cassandra, ElasticSearch

•DevOps & Tools: Git, Maven, Gradle, Ansible, SonarQube, Prometheus, Grafana, ELK Stack

(Elasticsearch, Logstash, Kibana), Nexus

•Testing & QA: JUnit, Mockito, TestNG, Cucumber, Selenium, REST Assured, Postman, WireMock

•Security & Optimization: Spring Security, OAuth2, JWT, SAML, API Gateway, Performance Tuning, Load Balancing, Caching

•Front-End & UI Development (for Full Stack Collaboration): React.js, Angular, HTML5, CSS3, Bootstrap, JavaScript (ES6+), TypeScript, JSON, XML

•Project Management & Collaboration: Agile (Scrum, Kanban), Waterfall, Stakeholder Engagement, Remote Team Leadership, Full SDLC, Continuous Improvement PROFESSIONAL EXPERIENCE

Senior Java Developer, vFunction

•Designed and delivered microservices-based architectures using Spring Boot and AWS, enabling scalability and modularization. 12/2021 – Present

•Engineered and deployed RESTful APIs and asynchronous event-driven systems using Kafka and RabbitMQ.

•Led modernization of legacy monolith applications into containerized services using Docker and Kubernetes.

•Partnered with DevOps teams to implement end-to-end CI/CD pipelines with Jenkins and Git.

•Collaborated across teams to build fault-tolerant and cloud-native systems optimized for performance and reliability.

•Mentored junior engineers on best practices, design principles, and performance tuning.

Java Developer, CloudFrame

•Developed backend systems using Spring Boot, Hibernate, and Oracle Database for enterprise-grade applications.

06/2018 – 11/2021

•Built and secured REST APIs for integration with internal and third-party systems.

•Enhanced test coverage and reliability through JUnit, Mockito, and integration testing frameworks.

•Deployed centralized logging and metrics tracking with ELK Stack and Prometheus.

•Partnered with front-end developers and architects to ensure optimal system scalability and modularity.

•Participated in Agile sprints, architecture reviews, and continuous improvement initiatives.

Software Engineer, HazalCast

•Designed and developed enterprise CRM and ERP modules using Spring MVC, JSP, and Servlets.

12/2015 – 05/2018

•Implemented authentication and authorization using Spring Security

(OAuth2, JWT).

•Developed multi-threaded background services to improve processing efficiency.

•Collaborated in Agile development cycles, ensuring timely feature delivery and code quality.

•Authored API documentation, data flow diagrams, and technical design specifications.

•Ensured compliance with security and data protection standards.

•Developed and debugged UI components and API integrations using React.js and Angular as part of full stack delivery. Junior Java Engineer, Optoro

•Assisted in developing Java EE web applications using JSP, Servlets, and Struts Framework.

10/2014 – 11/2015

•Supported debugging, testing, and maintenance of large-scale backend modules.

•Contributed to front-end improvements through AJAX and JSON-based data rendering.

•Wrote and executed unit and integration tests to validate functionality.

•Maintained technical documentation and source control using Git/SVN.

•Learned and implemented object-oriented design patterns under senior supervision.

EDUCATION

Master of Science, New Jersey Institute of Technology

Contact this candidate